Honda BF25 - 30 Outboard Engines 25 and 30 hp 4 Stroke User Manual

Thank you for purchasing a Honda

Outboard Motor.

This manual describes the operation

and maintenance of the Honda BF25A

and BF30A Outboard Motors.

All information in this publication is

based on the latest product informa-

tion available at the time of printing.

Honda Motor Co., Ltd. reserves the

right to make changes at any time

without notice and without incurring

any obligation.

No part of this publication may be

reproduced without written

permission.

This manual should be considered a

permanent part of the Outboard Motor

and it must stay with the Outboard

Motor if resold.

READ THIS OWNER’S MANUAL

CAREFULLY. Pay special attention to

these symbols and any instructions

that follow.

You WILL be

KILLED or SERIOUSLY HURT

if you don’t follow instructions.

m YouCANbe

KILLED or SERIOUSLY HURT

if you don’t follow instructions.

You CAN be HURT

if you don’t follow instructions.

( NOTlCEl Your outboard motor

or other property can be damaged

if you don’t follow instructions

Honda Outboard Motors are designed

to give safe and dependable service if

operated according to instructions.

Operating this Outboard Motor

requires special effort on your part to

ensure your safety and the safety of

others.

Careless operation

or misuse may cause injury or

property damage. Read and

understand this owner’s manual

before operating the Outboard

Motor.

If a problem should arise, or if you

have any questions about your

Outboard Motor, see an authorized

Honda Marine or Honda Outboard

Motor dealer.

HONDA

MOTOR CO., LTD. 1994,

TYPES OF HONDA BF25A/30A OUTBOARD MOTORS

It may be necessary to refer to this chart for reference purposes when reading this manual.

TYPE CODE

(example)

LHS

- S = Electric Starter

Control

H = Tiller Handle

R = Remote

Shaft Length

(transom height)

S = Short

L = Long

X = Extra Long

IDENTIFICATION NUMBERS

RIGHT STE_RN BRACKET

PRODUCT IDENTIFICATION NUMBER

Record the Product Identification

Number (P.I.N.) and the Engine Serial

Number for your reference. Refer to

the Product Identification Number

when ordering parts, and when mak-

ing technical or warranty inquiries

(see page 95).

STARTER MOTOR

ENGINE SERIAL NUMBER

The Product Identification Number is

stamped on a plate and attached to the

right stern bracket. The Engine Serial

Number is stamped on the cylinder

block under the starter motor which is

located in the front of the engine.

Product identification number:

Engine serial number:

CONTENTS

1. SAFETY

SAFETY LABELS

................................................... 6

SAFETY INFORMATION ...................................... 7

2. COMPONENT IDENTIFICATION ...........................

3. CONTROLS

TILLER HANDLE TYPE

Engine Start Button ..................................................

1 1

Gearshift Lever .........................................................

I 1

Choke Knob ..............................................................

I I

Throttle Grip .............................................................

Throttle Opening Indicator .......................................

Throttle Friction Knob ..............................................

Engine Stop Switch ..................................................

Emergency Stop Switch Lanyard .............................

Oil Pressure Indicator Light .....................................

Recoil Starter ............................................................

REMOTE CONTROL TYPE

Remote Control Lever ..............................................

Neutral Release Lever ..............................................

Ignition Switch .........................................................

Emergency Stop Switch Lanyard .............................

Choke/Fast Idle Lever ..............................................

Manual Choke Knob.. ...............................................

Oil Pressure Indicator Light/Buzzer .........................

Overheat Indicator Light/Buzzer ..............................

CONTROLS & INSTRUMENTS (common)

Tilt Lever.

................................................................. 20

Trim Tab

................................................................... 20

Anode Metal

.............................................................

Water Intakes

............................................................ 21

Transom Angle Adjusting Rod.. ...............................

Fuel Cap/Gauge/Vent Knob .....................................

Engine Over-Rev Limiter .........................................

4. INSTALLATION

Installation ................................................................

Installation position ..................................................

Installation height .....................................................

Motor attachment.. ....................................................

Engine Cover Removal Installation..

........................ 26

5. PRE-OPERATION CHECKS

Engine Oil .................................................................

Fuel Level .................................................................

Fuel Recommendations ............................................

Oxygenated Fuels .....................................................

Propeller and Cotter pin ............................................

3 1

Steering Friction Adjustment (common)

.................. 3 1

Remote Control Friction Adjustment

....................... 32

Other Checks

Fuel hose ................................................................

Stern bracket/clamp screws ....................................

CONTENTS

Tool kit ...................................................................

Anode .....................................................................

6. STARTING THE ENGINE

Fuel Tank and Vent

Knob

........................................

Fuel Line Connection ...............................................

Starting the engine (TILLER HANDLE TYPE) ......

Starting the engine (REMOTE CONTROL TYPE). ..

Emergency Starting

.................................................. 42

Troubleshooting Starting Problems ..........................

7. OPERATION

Break-in Procedure

...................................................

TILLER HANDLE TYPE

Gear Shifting.. ...........................................................

Steering .....................................................................

Cruising ....................................................................

REMOTE CONTROL TYPE

Gear Shifting.. ...........................................................

5 1

Cruising ....................................................................

Tilting motor

Tilt Lever

....................................................................

Trim Tab Adjustment..

................................................ 56

MOTOR PROTECTION SYSTEM

Engine Oil Pressure and

Overheat Warning

System.. ...................................... 57

Over-Rev Limiter

..................................................... 59

Anode.. ......................................................................

High

Altitude Operation ......................................... 60

8. STOPPING THE ENGINE

TILLER HANDLE TYPE

...................................... 61

REMOTE CONTROL TYPE

................................. 63

9. TRANSPORTING

.................................................... 64

10. CLEANING AND FLUSHING

............................... 65

1 1. MAINTENANCE

..................................................... 67

Tool Kit and Spare Parts

........................................ 68

MAINTENANCE

SCHEDULE ............................. 69

Engine

Oil .............................................................. 7 1

Gear Oil

.................................................................. 73

Spark Plugs..

............................................................ 74

Battery

(not included) ............................................ 76

Lubrication..

............................................................ 78

Engine

Fuel Filter ................................................... 80

Fuel

Tank and Filter ............................................... 82

Fuse

Replacement.. ................................................. 83

Propeller..

................................................................ 84

Submerged Motor

................................................... 85

12. STORAGE..

.............................................................. 87

13. TROUBLESHOOTING

........................................... 89

14. SPECIFICATIONS

.................................................. 91

15.

WARRANTY SERVICE

......................................... 94

16. WIRING

DIAGRAM ............................................... 95

17. INDEX

...................................................................... 98

1. SAFETY

SAFETYLABELS

These labels are in the locations

shown. They warn you of potential

hazards that could seriously injure

you. Read these labels carefully.

FLAMMABLE DANGEROUS

GASOL I NE

Rwt mu WA1 FOR Fllllffi

INFLAMMABLE DANGEREUX

GAZOL I NE

PDUllR LlJ MlENJ FwRWlRt LT FwmIWa

SAFETY INFORMATION

For your safety and the safety of oth-

ers, pay special attention to these pre-

cautions.

Operator Responsibility

Know how to stop the engine

quickly in case of emergency.

Understand the use of all controls.

Do not exceed the boat manufactur-

er’s power recommendation, and be

sure that the outboard motor is

properly mounted.

Never permit anyone to operate the

outboard motor without proper

instruction.

Stop the engine immediately if any

one falls overboard.

Do not run the motor while the

boat is near anyone in the water.

Attach the emergency stop switch

lanyard securely to the operator.

Do not open the engine cover while

the engine is running.

Before operating the outboard

motor, familiarize yourself with all

laws and regulations relating to

boating and the use of outboard

motors.

Do not attempt to modify the out-

board motor.

Always wear a PERSONAL

FLOTATION DEVICE (PFD) when

on board.

Do not remove any guards, labels,

shields, covers or safety devices;

they are installed for your safety.

Fire and Burn Hazards

Gasoline is extremely flammable, and

gasoline vapor can explode. Use

extreme care when handling gasoline.

Remove the fuel tank from the boat

for refueling.

Refuel in a well-ventilated area

with the engine stopped. Keep

flames and sparks away, and do not

smoke in the area.

Refuel carefully to avoid spilling

fuel. Avoid overfilling the fuel tank

(there should be no fuel in the filler

neck). After refueling, tighten the

filler cap securely. If any fuel is

spilled, make sure the area is dry

before starting the engine.

2. COMPONENT IDENTIFICATION

(TILLER HANDLE TYPE)

FUEL LINE

OIL LEVEL DIPSTICK

STARTER GRIP

THROTTLE GRIP CONNECTOR

OIL PRESSURE INDICATOR LIGHT

\ I

(Recoil starter

O!L FILLER CAP type)

------,\IP

T., . Pm,

\, I

ENGINE COVER \

ENti11*IL

ENGINE OIL

DRAINSCREW j&+j

GEARSHIFT LEVER

SYSTEM

INDICATOR

JlCKl

BRAC

VENTILATION

WASH PLUG

TRIM TAH

(ANODE METAL)

EXHAUST PORT

FRICTION

ENGINE STAR

BUTTON

(Electric starter

WATER INTAK

-KNOB \-

type)

‘HOKE KNOB

STOP SWITCH

CLIP

SPARE EMERGENCY

STOP SWITCH CLIP

PROPELLER

GEAR OIL DRAIN PLUG

2. COMPONENT IDENTIFICATION (REMOTE CONTROL TYPE)

NEUTRAL

OIL PRESSURE

SPARE EMERGE

STOP SWITCH C

CHOKE/FAST

IDLE LEVER

INDICATOR

GEAR OIL

LEVEL PLUG

NODE METAL)

HAUST PORT

PROPELLER

R INTAKE EMERGE

EMERGENCY STOP

SWITCH CLIP

2. COMPONENT IDENTIFICATION

FUEL TANK

VENT KNOB

FUEL GAUGE

FUEL HOSE CONNECTOR

(FEMALE)

PRIMER BULB

3. CONTROLS (TILLER HANDLE TYPE)

Engine Start Button (Electric Starter

Type)

(reverse)

BUTTON

Move the gearshift lever to the N

(neutral) position before starting. The

engine will not start unless the

gearshift lever is in the N (neutral)

position.

Gearshift Lever

(reverse)

There are three gearshift lever posi-

tions.

F (forward): The boat moves forward.

N (neutral): The transmission gears

are disengaged from the

engine.

R (reverse): The boat reverses.

Choke Knob

CHbKE KNOB

When the engine is cold, pull the

choke knob. A rich fuel mixture is

provided to the engine by pulling the

choke knob.

3. CONTROLS (TILLER HANDLE TYPE)

Throttle Grip

THROTI’LE GRIP

Turn the grip clockwise or counter-

clockwise to adjust the engine speed.

Turning the grip in the direction

shown by the arrow increases engine

speed.

Throttle Opening Indicator

THROTTLE OPENING INDICATOR

The curve on the grip indicates throttle

opening.

Throttle Friction Knob

RELEASE

Use the throttle friction knob to set the

throttle grip at a certain position while

cruising. Turning the friction knob

clockwise sets the throttle grip, and it

is released by turning the friction knob

counterclockwise.

3. CONTROLS (TILLER HANDL% TYPE)

Engine Stop Switch

, PUSH

Push the engine stop switch to stop the

engine.

Emergency Stop Switch Lanyard

EMERGENCY STOP SWITCH CLIP

The emergency stop switch lanyard is

provided to stop the engine immedi-

ately in the event the operator should

fall overboard or away from the con-

trols.

The emergency stop switch clip must

be engaged with the engine stop

switch or the engine will not start.

When the emergency stop switch clip

becomes disengaged from the engine

stop switch the engine will stop imme-

diately.

ENGINE STOP

SPARE EMERGENCY

SWITCH

STOP SWITCH

CLIP

EMERGENCY STOP SWITCH LANYARD

Attach the emergency stop switch lan-

yard securely to the operator when

operating the outboard motor.

A spare emergency stop switch clip is

provided near the engine stop switch.

3. CONTROLS (TILLER HANDLE TYPE)

Oil Pressure Indicator Light

OIL PRESSURE INDICATOR LIGHT

The green oil pressure indicator light is

normally ON when the outboard motor

is running.

When the engine oil level is low or the

engine lubrication system is faulty, the

green oil pressure indicator light turns

OFF.

Recoil Starter

’ STARTER GRIP

’ (Recoil starter type)

Pull the starter grip to start the engine.

Set the gearshift lever in the N (neutral)

position before starting.

The engine will not start unless the

gearshift lever is in the N (neutral)

position.

3. CONTROLS (REMOTE CONTROL TYPE)

Remote Control Lever

RELEASE

The remote control lever controls gear

selection and throttle opening posi-

tions.

It is necessary to pull up the neutral

release lever to operate the remote

control lever.

THROTTLE

(NE”kAL)

REMOTE CdNTROL LEVER

F (forward):

Moving the lever to the F position

(approximately 30” from the N

position) will engage the forward

gear. Moving the lever further from

the F position will increase the

throttle opening and the boat for-

ward speed.

N (neutral):

The engine idles and the transmis-

sion gears are disengaged.

OPENING

(reverse):

Moving the lever to the R position

(approximately 30” from the N

position) will engage the reverse

gear. Moving the lever further from,

the R position will increase the

throttle opening and the boat

reverse speed.

3. CONTROLS (REMOTE CONTROL TYPE)

Neutral Release Lever

The neutral release lever is on the

remote control lever to prevent an

accidental gear engagement.

The remote control lever will not

engage forward or reverse gear unless

the neutral release lever is pulled up.

Ignition Switch

+ ON

START

The remote control box is equipped

with a key type ignition switch.

Key positions:

START

To activate the starter motor and start

the engine. (the remote control lever

must be in the neutral position)

To run the engine after starting (the

battery will discharge if the key is

left in this position with the engine

not running).

OFF

To stop the engine (IGNITION

OFF).

To prevent the battery from dis-

charging, keep the key in the OFF

position when the engine is not run-

ning.

3. CONTROLS (REMOTE CONTROL TYPE)

Emergency Stop Switch Lanyard

-4

EMERGENCY

EMERGENCY STOP

SWITCH CLIP

The emergency stop switch lanyard is

provided to stop the engine immedi-

ately in the event the operator should

fall overboard or away from the con-

trols.

The emergency stop switch clip must

be engaged with the emergency engine

stop switch or the engine will not start.

When the emergency stop switch clip

becomes disengaged from the emer-

gency engine stop switch the engine

will stop immediately.

The emergency engine stop switch

should not be used to normally stop

the engine. Use the ignition switch to

normally stop the engine.

Attach the emergency stop switch lan-

yard securely to the operator when

operating the outboard motor.

SPA’RE EMERGENCY

STOP SWITCH CLIP

A spare emergency stop switch clip is

provided on the remote control box.

3. CONTROLS (REMOTE CONTROL TYPE)

Choke/Fast

Idle I

Lever

N (neutral)

CHOKE

AXIMUM FAST IDLE

LOWEST POSITION

AST

IDLE LEVER

The choke/fast idle lever provides two

functions:

1. Electric choke solenoid activation

for easy engine start up.

2. Engine fast idle.

The choke/fast idle lever will not

move unless the remote control lever

is in the N (neutral) position.

Conversely, the remote control lever

will not move unless the choke/fast

idle lever is in the lowest position.

Lift and hold the choke/fast idle lever

up fully, this will provide a rich fuel

mixture and the correct fast idle.

Gradually lower the choke/fast idle

lever to the lowest position to decrease

the choke and fast idle.

Manual Choke Knob

CHOkE KNOB

A manual choke knob is provided on

the right side of the motor which can

he used in the event the battery is dis-

charged. Pull the manual choke knob,

and a rich fuel mixture will be provid-

ed to the engine.

3. CONTROLS (REMOTE CONTROL TYPE)

Oil Pressure Indicator Light/Buzzer

The green oil pressure indicator light

turns OFF and the buzzer sounds

when the oil level is low and/or the

engine lubrication system is faulty.

Overheat Indicator Light/Buzzer

The red overheat indicator light turns

ON and the buzzer sounds when the

engine cooling system is faulty. The

engine speed slows down gradually.

3. CONTROLS & INSTRUMENTS (common)

Tilt Lever

LEVER

Use the tilt lever to temporarily tilt the

motor when the boat is operating or

mooring in shallow water.

Tilt lever in the TILT position:

The lock mechanism between the

motor and stem bracket is unlocked.

The motor can be tilted up to either

the 30°, 45” or 75” tilt position.

Tilt lever in the RUN position:

The lock mechanism between the

motor

and stern bracket is locked

when the motor is in contact with the

transom angle adjusting rod.

Trim Tab

When making a turn, if an unequal

amount of effort is required to turn

the steering wheel or tiller handle

right or left, adjust the trim tab so

that an equal amount of effort is

required.

Distribute4he load evenly in the boat

and run the boat in straight course at

full throttle. Slightly turn the steering

wheel or tiller handle for both right

and left turns to determine if an equal

amount of effort is required. If adjust-

ment is necessary loosen the tighten-

ing bolt and turn the trim tab right or

left. Make small adjustments at a

time and retest.

Incorrect trim tab

adjustment can cause adverse steering.

The trim tab also functions as an anode.

3. CONTROLS & INSTRUMENTS (common)

Anode Metal

The anode is made from a sacrificial

material which helps to protect the

outboard motor from corrosion.

m Painting or coating the

anode will lead to rust and corrosion

damage to the outboard motor.

Cooling System Indicator

COOLING SYSTEM INDICATOR

The cooling system is monitored here

to make sure cooling water is circulat-

ing through the engine.

Water Intakes

Waier

Intakes

The engine cooling water is drawn

into the water pump through these

water intakes.

3. CONTROLS & INSTRUMENTS

(common)

Transom Angle Adjusting Rod

TRANSOM ANGLE ADJUSTING

ROD

The transom angle adjusting rod is

used to adjust the motor angle to

achieve the correct boat trim. There

are 5 adjustment holes located in the

stem bracket.

Push in and turn the transom angle

adjusting rod up to remove. To install

insert into the proper hole and turn

down to lock. After installation pull

the transom angle adjusting rod out-

ward to be sure it is locked in place.

Start with the transom angle adjusting

rod in the hole closest to the boat tran-

TRANSOM ANGLE

TO CHANGE

ADJjJSTING ROD

UNLOCKED

POSITION

TO LOCK LOCKED POSITION

som, lower the motor and operate the

boat at full

speed. If the bow is exces-

sively

low stop the boat and

motor. Tilt

the

motor up

and raise the transom

angle adjusting rod one more hole

away from the transom and retest. The

optimum boat trim is when the boat is

parallel with the water. The transom

angle adjusting rod stops the motors

forward movement.

The motor should never be operated

with the transom angle adjusting rod

removed.

3. CONTROLS & INSTRUMENTS (common)

Fuel Cap/Gauge/Vent Knob

VENT KNOB

GAUGE

FUEL FILLER

CAP

The fuel gauge is part of the fuel cap.

The fuel cap vent knob controls air

entering and leaving the fuel tank.

When refilling the fuel tank, turn the

vent knob counterclockwise to the

open position and remove the fuel cap.

Before transporting, storing or refill-

ing the fuel tank inspect the condition

of the fuel cap gasket and replace if

necessary.

Before transporting or storing the fuel

tank turn the vent knob fully clock-

wise to the closed position.

B Gasoline is

extremely flammable, and gaso-

line vapor can explode, causing

serious injury or death. Do not

smoke or allow flames or sparks

in your working area. KEEP

OUT OF REACH OF CHILDREN.

Over-Rev Limiter

This outboard motor is equipped with

an engine over-rev limiter which limits

the maximum engine rpm. This over-

rev limiter protects the engine from

mechanical damage.

The over-rev limiter may be activated

by putting the propeller in a light load

condition or propeller ventilation.

When the over-rev limiter is activated

the engine rpm will become unstable

or erratic. Should this occur reduce the

throttle opening and wait for the

engine rpm to stabilize then increase

the throttle opening.

4. INSTALLATION

Installation

It is your responsibility to choose a

boat suitable for the motor.

DO NOT OVERPOWER THE BOAT

Do not install an outboard motor that

exceeds the recommended maximum

horsepower for the boat. Refer to the

boat certification plate for the maxi-

mum recommended horsepower for the

boat. For most boat applications, the

motor should have a horsepower which

provides 80% of the maximum recom-

mended horsepower for the boat. If the

certification plate information is not

available, contact the boat dealer.

The BF25A/30A must be installed on

transoms which have the following

minimum or maximu thickness.

Boat Transom Thickness

1 Minimum = 1.38 in (35 mm)

( Maximum = 2.24 in (57 mm)

STERN CENTER LINE

Installation position

Install on the stern center line.

Installation height

For proper propeller depth and engine

cooling, the boat and outboard motor

transom height must match.

Three outboard motor transom heights

are available. Match your boats tran-

som height to the outboard motor

transom height shown below.

Outboard Motor

Type

Transom Height

Short 16.97 in (43 1 mm)

Long 2 1.73 in (552 mm)

Extra Long 24.88 in (632 mm)

@ MOTOR TRANSOM HEIGHT

@ ROAT TRANSOM HElGHT

@ O-2 in (O-50 mm)

@ ANTI-VENTLATION PI.ATE

The anti-ventilation plate should be

O-2 inches below the bottom of the

boat. With the boat in the water, loaded

and motor off, the anti-ventilation plate

should be about 4 inches below the

surface of the water.

-1 Running the outboard

motor without suffkient cooling

water will damage the water pump

and overheat the engine.

4. INSTALLATION

Motor attachment

STERN

P SCREW

SHERS

BOLG

‘NUT

SAFETY ROPE

TRANSOM BOARD

Attach the stem bracket to the transom

and tighten the clamp screws.

j=miq

Before operating the boat, check

the tightness of the clamp screws.

Tie a rope through the hole in the

stern bracket and secure the other

end of the rope to the boat. This

will prevent accidental loss of the

motor.

To prevent the outboard motor from

falling accidentally, you may further

secure the stem bracket to the transom

board with the optional Mounting Bolt/

Nut Kit. Good quality stainless steel

commercially available bolts, nuts and

washers may also be used.

Before installing the bolts, be sure to

apply sealant to the bolt holes. This

modification should be made by your

authorized Honda Marine or Honda

Outboard Motor dealer.

For battery handling and installation

information refer to pages 76, 77.

4. INSTALLATION

Engine Cover Removal/Installation

CINE COVER

To remove, release the engine cover

latch and remove the engine cover.

To install, position the engine cover

over the engine and hook and lock the

latch.

5. PRE-OPERATION CHECKS

Engine Oil

Engine oil is a major factor affecting

engine performance and service life.

m Running the engine with

insufficient oil can cause serious

engine damage.

Recommended oil

Use high-detergent, premium quality

4-stroke engine oil, certified to meet

or exceed U.S. automobile manufac-

tures’ requirements for American

Petroleum Institute (API) Service

Classification SG, SH. Engine oils

classified SG, SH will show these

designations on the container.

Select

the appropriate viscosity for the

average temperature in your area.

SAE 1OW 30 is recommended for gen-

eral, all-temperature use (BF25A).

SAE 5W-30 is recommended for gen-

eral, all-temperature use (BF30A).

API Service Grade: Use a Fuel Efficient

SG, SH oil.

NOTE: This oil is usually identified by

words such as: “Energy Conserving II.”

“Gas Saving, ” “Fuel Saving, ” etc.

OiL LEVEL

DIPSTICK

Inspection

4. Reinstall the oil filler cap and

1. Position the outboard motor verti-

cally, and remove the engine cover.

2. Remove the oil level dipstick and

wipe with a clean rag.

3. Reinsert the dipstick all the

way in,

then pull it out and read the level. If

the oil registers near or below the

lower level mark, remove the oil

filler cap and fill to the upper level

mark with the recommended oil.

tighten securely.

5. Install the engine cover and lock it

securely.

When the engine oil is contaminated or

discolored, replace with fresh engine

oil

(refer to page 7 1 for oil capacity,

replacement interval arid procedure).

To avoid incorrect gauging of the

engine oil level, inspect the oil level

when the engine has cooled.

k@f@ Do not overfill. Excessive

oil can damage the engine.

5. PRE-OPERATION CHECKS

Fuel Level

SAFE FILL LEVEL

Check the fuel gauge and refill the

tank to the. SAFE FILL level mark if

necessary.

Fuel tank capacity : 6.6 US gal. (25 lit)

B Gasoline is

extremely flammable, ‘and gaso-

line vapor can explode, causing

serious injury or death. Do not

smoke or allow flames or sparks

in your working area. KEEP

OUT OF REACH OF CHILDREN.

VENT KNOB

Refilling

Remove the fuel tank from the boat

for refilling. Turn the vent knob coun-

terclockwise to the open position and

remove the fuel cap.

Refuel in a well-ventilated area. Fill

the fuel tank up to the SAFE FILL

level mark only. Inspect the condition

of the fuel cap gasket and replace if

necessary.

After refilling, install and tighten the

fuel cap securely. Turn the vent knob

clockwise to the closed position.

Return the fuel tank to the boat.

5. PRE-OPERATION CHECKS

Fuel Recommendations

Use unleaded gasoline with a pump octane rating of 86

or higher.

This engine is designed to operate on unleaded gasoline.

Unleaded gasoline produces fewer engine ans spark plug

deposits and extends exhaust system life.

Never use stale or contaminated gasoline or an oil/gasoline

mixture. Avoid getting dirt or water in the fuel tank.

Occasionally you may hear light “spark knock” or “ping-

ing” (metallic rapping noise) while operating under heavy

loads. This in no cause for concern.

If spark knock or pinging occurs at a steady engine speed,

under normal load, change brands of gasoline. If spark

knock or pinging persists, see an authorized Honda Marine

or Honda Outboard Motor dealer.

-1 Running the engine with persistent spark

knock or pinging can cause engine damage.

Running the engine with persistent spark knock or pinging

is misuse, and the Distributor’s Limited Warranty does not

cover parts damaged by misuse.

5. PRE-OPERATION CHECKS

Oxygenated Fuels

Some conventional gasolines are being blended with alco-

hol or an ether compound. These gasolines are collec-

tively referred to as oxygenated fuels. To meet clean air

standards, some areas of the United States and Canada

use oxygenated fuels to help reduce emissions.

If you use an oxygenated fuel, be sure it is unleaded and

meets the minimum octane rating requirement.

Before using an oxygenated fuel, try to confirm the fuel’s

contents. Some states/provinces require this information

to be posted on the pump.

The following are the EPA approved percentages of oxy-

genates:

ETHANOL -

(ethyl or grain alcohol) 10% by volume

You may use gasoline containing up to

10% ethanol by volume. Gasoline con-

taining ethanol may be marketed under

the name “Gasohol”.

MTBE

- (Methyl Tertiary Butyl Ether) 15% by volume

You may use gasoline containing up to 15%

MTBE by volume.

METHANOL

-(methyl or wood alcohol) 5% by volume

You may use gasoline containing up to

5% methanol by volume, as long as it

also contains cosolvents and corrosion

inhibitors to protect the fuel system.

Gasoline containing more than 5%

methanol by volume may cause starting

and/or performance problems. It may

also damage metal, rubber, and plastic

parts of your fuel system.

If you notice any undesirable operating symptoms, try an-

other service station, or switch to another brand of gaso-

line.

Fuel system damage or performance problems resulting

from the use of an oxygenated fuel containing more than

the percentages of oxygenates mentioned above are not

covered under warranty.

5. PRE-OPERATION CHECKS

Propeller and Cotter Pin

COTTEk PIN

(stainless steel)

Propeller

Check the propeller blades for

damage, wear or deformation and

replace if necessary. Never operate the

outboard motor with a damaged pro-

peller.

Carrying a spare propeller, propeller

nuts, and cotter pins are common prac-

tice. If the propeller is damaged and

no spare propeller is available consult

an authorized Honda Marine or Honda

Outboard Motor dealer.

(Refer to page 84 for propeller change

information)

PROiELLER

Cotter

Check the cotter pin for damage and

correct installation. If the cotter pin

needs replacement use only a new

genuine Honda stainless steel cotter

pin.

Steering Friction Adjustment

(common)

.’ T&E&EASE

Operate the steering wheel or tiller

handle right and left and check for the

amount of drag felt.

Adjust the steering friction adjuster so

that a slight amount of drag is felt. The

steering should move smoothly and

freely.

5. PRE-OPERATION CHECKS

Remote Control Friction Adjustment

FRICTION

Operate the remote control lever into

forward and reverse gears and check

for the amount of drag felt.

Adjust the remote control friction

adjuster so that a slight amount of drag

is felt. The remote control lever should

move smoothly and freely,

Other Checks

.- _

.e.--

Check the following items:

1. The fuel hose for kinking, collaps-

ing or loose connections.

2. The stern bracket for damage. Make

sure the clamp screws and mounting

bolts (if equipped) are tight.

3. The tool kit contents. Compare your

tool kit contents against the tool kit

illustration above. Replace any

missing items.

4. The anodC for damage, looseness or

excessive corrosion.

The anode helps to protect the outboard

motor from corrosion any time it is

exposed directly to the water.

. Tool Kit

-a

PHILLIPS

SCREWDRIVER

SCRRWDRIVER

C=-

HANDLE

TOOL BAG

OIL CHECK

SCREWDRIVER

LE2rzzl

I* I I9 Dim WRRNCH

Replace the anode when it has been

visibly reduced in size.

-1 Painting or coating the

anode will lead to rust and corrosion

damage to the outboard motor.

The following materials should be

kept with the boat:

1. Owner’s Manual.

2. Tool Kit.

3; Spare engine oil, spark piugs,

propeller, propeller cotter pins and

nut.

4. Required information regarding

boating laws and regulations.

6. STARTING THE ENGINE

Fuel Tank and Vent Knob

VENT KNOB

The fuel tank must be properly se-

cured in the boat. This will protect

the fuel tank from mechanical dam-

age caused by the fuel tank shifting.

The fuel tank must be in a well venti-

lated area to reduce the chance of a

gasoline vapor explosion. Avoid di-

rect sunlight on the fuel tank.

Due to the fuel pump capacity, do

not place the fuel tank more than 6

feet away from the motor or lower

than 3 feet below the outboard end

fuel hose connector.

1. Open the fuel tank vent by tum-

ing the vent knob at least 2 or 3

turns counterclockwise. Allow

the air pressure inside the fuel

tank to equalize with the outside

air. With the vent open, air can en-

ter the fuel tank to displace the

fuel as the fuel level goes down.

2. Remove the fuel cap and inspect

the condition of the fuel cap and

gasket. Replace the fuel cap or

gasket if they are cracked, dam-

aged or leak fuel.

Fuel Line Connection

FUEL HOSE

I I

CONNECTOR

(FUEL TANK END)\

Inspect the fuel hose, and the O-ring

seals in the fuel hose connectors. Re-

place the fuel hose, or fuel hose connec-

tors if they are cracked, damaged or leak

fuel. Be sure the fuel hose is not kinked.

1. Connect the fuel hose connector

to the fuel tank. Be sure the fuel

hose connector is securely

snapped in place.

6. STARTING THE. ENGINE

FUEL HOSE CONNECTOR

(OUTBOARD END)

1 II

2. Connect the fuel hose connector to

the outboard motor. Install the

outboard end fuel hose connector

with the clip toward the outside.

Be sure the fuel hose connector is

securely snapped in place.

[ NOTICE 1 If the outboard end

fuel hose connector is forcibly in-

stalled in the reversed direction,

the fuel hose connector O-ring

seal can be damaged. A damaged

O-ring seal can cause a fuel leak.

PRIMER BULB

3. Hold the primer bulb so that the

outlet end is higher than the inlet

end. The arrow on the primer

bulb points upward. Squeeze the

primer bulb several times until it

feels firm, indicating that fuel has

reached the carburetors. Check

for fuel leaks and repair any leaks

before slatting the motor.

Do not squeeze the primer bulb

when the motor is running because

this could cause the carburetors to

overflow.

6. STARTING THE ENGINE (TILLER HANDLE TYPE)

ENGINE STOP

SWITCH I

EMERGENCY STOP SWiTCH LANYARD

j-iimq

The propeller must be

lowered into the water. Rupning the

outboard motor out of the water

will damage the water pump and

overheat the engine.

1. Engage the emergency stop switch

clip located at one end of the emer-

gency stop switch lanyard with the

engine stop switch. Attach the oth-

er end of the emergency stop switch

lanyard securely to the operator.

A spare emergency stop switch clip is

provided near the engine stop switch.

B If the operator does

not attach the emergency stop

switch lanyard, and is thrown

from his seat or out of the boat,

the out-of-control boat can seri-

ously injure the operator, pas-

sengers, or bystanders. Always

properly attach the lanyard

before starting the motor.

GEAR SHIFT LEVER

Move the gearshift lever to the N

(neutral) position.

The engine will not start unless the

gearshift lever is in the N (neutral)

position.

6. STARTING THE ENGINE (TILLER HANDLE TYPE)

THROTTiE GRIP

3. Align the engine start symbol

” QI ” on the throttle grip with the

pointer ” ) ” on the tiller handle.

CHOKE KNOB

4. When the engine is cold or ambient

temperature is low pull the choke

knob.

STARTER

GRIP

5. Pull the starter rope slowly until a

resistance is felt, then pull briskly.

l Do not allow the starter grip to

snap back against the engine.

Return it gently to prevent dam-

age to the starter.

l Do not pull the starter grip while

the engine is running, as that may

damage the starter.

6. STARTING THE ENGINE (TILLER HANDLE TYPE)

Electric Starter

(Electric starter Type)

START BUTTON

6. Press the start button and start the

engine. The starter motor consumes

a large amount of current.

Do not run it continuously for more

than 5 seconds at a time. If the

engine does not start within 5

seconds wait at least 10 seconds

before using the starter motor again.

m Do not press the start but-

ton while the engine is running.

This can damage the starter motor

and flywheel.

CHOKE IkNOB

7. If it was necessary to use the choke knob to start the

engine, slowly return it to its initial position. Turn the

throttle grip in the SLOW direction to a position where

the engine does not stall.

6. STARTING THE ENGINE (TILLER HANDLE TYPE1

COOLING

SYSTEM

INDICATOR

WATER INTAKE

8. After the engine starts, verify water is flowing through the

cooling system by monitoring the cooling system indicator.

The amount of water coming out of the cooling system

indicator will vary due to thermostat operation. Stop the

engine if water does not come out of the cooling system

indicator or if you see steam. Check the water intake

screens and the cooling system indicator discharge port and

if necessary remove any obstructions. If the problem

continues, contact your closest authorized Honda Marine

or Honda Outboard Motor dealer.

m] R,,

nning the outboard motor with an obstruc-

tion in the cooling system can damage the water pump

and overheat the engine.

NORMALGREEN~IGHTON

ABNORMAL:GREENLIGHT

BLINKINGOROFF

9. With the engine running, check to see if the green engine

oil pressure indicator light turns ON.

Stop the engine if the oil pressure indicator light does not

turn ON. Check the engine oil level (see page 27). If the

oil level is normal and the oil pressure indicator light does

not turn ON, contact your closest authorized Honda Marine

or Honda Outboard Motor dealer.

IO. Warm up the engine as follows:

Above 41 OF (5°C) - run the engine for 2 or 3 minutes.

Below 4 1 “F (5°C) - run the engine for at least 5 minutes at

approximately 2,000 rpm - 3,000 rpm.

Failure to completely warm up the engine will result in

poor engine performance.

6. STARTING THE ENGINE (REMOTE CONTROL TYPE)

EMERGENCY

(NOTICE1 The propeller must be

lowered into the water. Running the

outboard motor out of the water will

damage the water pump and over-

heat the engine.

1. Engage the emergency stop switch

clip located at one end of the emer-

gency stop switch lanyard with the

emergency engine stop switch.

Attach the other end of the emer-

gency stop switch lanyard securely

to the operator.

SPARE EMERGENCY

STOP SWITCH CLIP

If the operator does

not attach the emergency stop

switch lanyard, and is thrown

from his seat or out of the boat,

the out-of-control boat can seri-

ously injure the operator, pas-

sengers, or bystanders. Always

properly attach the lanyard

before starting the motor.

The

engine will not start unless the

emergency stop switch clip is engaged

with the emergency engine stop switch.

(neutral)

spare emergency stop switch clip is

provided on the remote control box.

2. Move the control lever to the N

(neutral) position.

The engine will not start unless the

control lever is in the N (neutral)

position.

6. STARTING THE ENGINE (REMOTE CONTROL TYPE)

f--' CHOKE

CHOI~~A~-~~DLEL~ER -

When the engine is cold or the

ambient temperature is low, lift the

choke/fast idle lever up fully. This

will provide a rich fuel mixture.

When the engine is warm, it may be-

necessary to raise the choke/fast idle

lever slightly. Hold it in this position.

The choke/fast idle lever will not move

unless the control lever is in the N

(neutral) position.

4. Hold the choke/fast idle lever in

position, turn the ignition key to the

START position and release the key

when the engine starts. The starter

motor consumes a large amount of

current. Do not run it continuously

for more than 5 seconds at a time.

If the engine does not start within 5

seconds wait at least 10 seconds

before using the starter motor again.

m Do not turn the ignition

key to the start position while the

engine is running. This can damage

the starter motor and flywheel.

5. After starting the engine, return the

lever slowly to the position where

the engine does not stall and hold

the lever in the position.

The control lever will not move unless

the choke/fast idle lever is returned to

the lowest position.

6. STARTING THE ENGINE (REMOTE CONTROL TYPE)

COOLING SYSTEM

WATER INTAKE

(each side)

6. After the engine starts, verify water is flowing through the

cooling system by monitoring the cooling system indica-

tor. The amount of water coming out of the cooling sys-

tem indicator will vary due to thermostat operation. Stop

the engine if water does not come out of the cooling sys-

tem indicator or if you see steam.

Check the water intake

screens and the cooling system indicator discharge port

and if necessary remove any obstructions. If the problem

continues, contact your closest authorized Honda Marine

or Honda Outboard Motor dealer.

(NOTICEI Ru

nning the outboard motor with an obstruc-

tion in the cooling system can damage the water pump

and overheat the engine.

OIL PRESSURE

INDICATOR LIGHT

RMAL: GREEN LIGHT’ ON

RMAL: GREEN LIGHT BLINKING

OR OFF

7. With the engine running, check to see if the green engine

oil pressure indicator light turns ON.

Stop the engine if the oil pressure indicator light does not

turn ON. Check the engine oil level (see page 27). If the oil

level is normal and the oil pressure indicator light does not

turn ON, contact your closest authorized Honda Marine or

Honda Outboard Motor dealer.

8. Warm up the engine as follows:

Above 41’F (5°C) - run the engine for 2 or 3 minutes.

Below 41°F (5’C) - run the engine for at least 5 minutes at

approximately 2,000 rpm - 3,000 rpm.

Failure to completely warm up the engine will result in

poor engine performance.

6. STARTING THE ENGINE

Emergency Starting

NGINE COVER

LATCHES

If the recoil starter and electric starting

system will not start the engine the

engine can be started by using the

emergency starter rope from the tool kit.

1. Release the engine cover latch then

remove the engine cover.

6 x

BOLTS

WASHERS FLYWHEEL COVER

(Electric starter type)

2. Remove the four 6 x 22 mm bolts

and the four washers then remove

the flywheel cover.

Do not lose the washers.

NEUTRAL START

6x22mm

CARLE

T-

FLANGE

p BOLT (4)

(Recoil starter type)

3. Move the gearsheft lever to F

(forward) position.

Loosen the neutral start cable lock

nut and disconnect the neutral start

cable.

4. Remove the four 6 x 22 mm flange

bolts and recoil starter assembly.

6. STARTING THE ENGINE

GEARSHIFT LEVER

(TILLER HANDLE TYPE)

5. Depending on what type of outboard

motor you have, move the gearshift

lever or the control lever to the N

(neutral) position.

(neutral)

\yIL

(REMOTE CONTROL TYPE)

ENGINE STOP SWITCH

EMERGENCY

STOP SWITCH

LANYARD

6. If your outboard motor is a tiller

handle type, engage the emergency

stop switch clip, located at one end

of the emergency stop switch lan-

yard, with the’engine stop switch.

spare emergency stop switch clip is

provided near the engine stop switch.

6. STARTING THE ENGINE

IGNITION KEY

EMERGENCY

STOP SWITCH

CLIP

7. If your outboard motor is a remote

control type, turn the ignition key to

the ON position. Engage the emer-

gency stop switch clip, located-at

one end of the emergency stop

switch lanyard, with the emergency

engine stop switch.

~PAREEME~~ENCY

STOP SWITCH CLIP

A spare emergency stop switch clip is

provided on the remote control box.

CHOKE\KNOB

(TILLERHANDLETYPE)

8. If the engine is cold or the ambient

temperature is low, pull the manual

choke knob located on the front of

the outboard motor.

6. STARTING THE ENGINE

CHOKiE KNOB

(REMOTE CONTROL TYPE)

If the fuel system is working properly, it

should only be necessary to pull the

engine 1 or 2 times with the choke knob

out.

ENGINE START-SYMBOL

POIN%ER

THROTTLE GRIP

(TILLER HANDLE TYPE)

9. On the tiller handle type align the

engine start symbol ” QI ” on the

throttle grip with the pointer ” ) ”

on the tiller handle. On the remote

control type .lifi the choke/fast idle

lever. The choke/fast idle lever will

stay up in the fast idle position.

(REMOTE CONTROL TYPE)

6. STARTING THE ENGINE

IO. Set the emergency starter rope knot

in the notch in the flywheel and

wind the emergency starter rope

clockwise around the flywheel.

STARTER

ROPE

11. Pull the emergency starter rope

lightly until resistance is felt, then

pull briskly.

If the engine fails to start refer to

Troubleshooting page 89.

12.If it was necessary to use the manu-

al choke knob to start the engine,

slowly return it to its initial

position.

13Slowly return the throttle grip to

the SLOW position or the

choke/fast idle lever to the lowest

position to where the engine does

not stall.

parts can cause-injury. Use

extreme care when installing

the engine cover. Do not oper-

ate the outboard motor without

the engine cover.

14.Leave the flywheel cover off and

install the engine cover. Lock the

engine cover latches. Attach the

emergency stop switch lanyard

securely to the operator and return

to the closest boat landing. Contact

your closest authorized Honda

Marine or Honda

Outboard Motor

dealer and have the outboard motor

and the electrical system checked.

6. STARTING THE ENGINE

Troubleshooting Starting Problems

SYMPTOM

Starter motor

doesn’t turn

over.

Pull the starter

erin hut engine

Starter motor

turns over but

engine will not

starter.

POSSIBLE CAUSE

1. Shift lever not in neutral

position.

2. Blown fuse.

3. Weak battery.

1. Shift lever not in neutral

position.

2. Emergency stop switch clip

is not engaged.

Out

of fuel

4. Vent knob not open.

5. Primer bulb has not been

squeezed.

6. Engine flooded.

REMEDY

1. Set shift lever in neutral

position.

2. Replace fuse.

(refer to page 83)

3. Start by using starter

rope (refer to page 42)

1. Set shift lever in neutral

position.

2. Engage the emergency

stop switch clip

(refer to page 13 and 17)

3. Supply fuel.

(refer to page 28)

4. Open vent knob.

(refer to page 28)

5. Squeeze primer bulb to

supply fuel.

(refer to page 34)

6. Clean and dry spark

plug.

(refer to page 74)

7. OPERATION

Break-in Procedure

Break-in period 10 hours

Break-in operation allows the moving

parts to wear-in evenly and thus

ensures proper performance and

longer outboard motor life.

Break-in your new outboard motor as

follows:

First 15 minutes:

Run the outboard motor at trolling

speed. Use the minimum amount

of throttle opening necessary to

operate the boat at a safe trolling

speed.

Next 45 minutes:

Run the outboard motor up to a

maximum of 2,000 to 3,000 rpm or

10% to 30% throttle opening.

Next 60 minutes:

Run the outboard motor up to maxi-

mum of 4,000 to 5,000 rpm or 50%

to 80% throttle opening. Short

bursts of full throttle are acceptable

but do not operate the motor contin-

uously at full throttle.

Next 8 hours:

Avoid continuous full throttle oper-

ation (100% throttle opening). Do

not run the outboard motor at full

throttle for more than 5 minutes at a

time.

For boats

that plane easily, bring the

boat up on plane then reduce the throttle

opening to the specified break-in

settings called out above.

7. OPERATION (TILLER HANDLE TYPE)

Gear Shifting

THRO’ITLE GRIP

F (forward),

Gearshift lever has 3 positions:

FORWARD, NEUTRAL, and

REVERSE.

An indicator at the base of the

gearshift lever aligns with the letters F,

N, and R on the motor pan.

1. Align the pointer on the tiller han-

dle with the SLOW position on the

throttle grip to decrease engine

speed.

The throttle mechanism is designed to

hmit the throttle grip travel when

operating in the REVERSE or NEU-

TRAL positions. The throttle grip can

only be turned to the FAST position

when operating in forward gear.

2. Put the tilt lever in the RUN position

to prevent the outboard motor from

tilting up, when operating in reverse.

3. Move the gearshift lever to engage

the desired gear.

7. OPERATION (TILLER HANDLE TYPE)

Steering

RIGHT TURN LEFT TURN

Move the tiller

handle to the left.

handle to the right.

The tiller handle is moved in the oppo-

site direction in which you want the

boat to turn.

Cruisinfx

F (fnrward)

THROT;LE GRIP

RELEASE

With the gearshift lever in the F (for-

To set the throttle at a steady speed,

ward) position, turn the throttle grip

turn the throttle friction knob clock-

toward the FAST mark to increase

wise. To release the throttle grip for

speed. For optimum fuel economy,

manual speed control, turn the friction

limit throttle opening to 2/3.

knob counterclockwise.

7. OPERATION (REMOTE CONTROL TYPE)

Gear Shifting

gorward)

(neutral)

30” I

PULL UP

While pulling up the neutral release

lever, move the control lever 30”

toward F (forward) or 30’ toward R

(reverse) to engage the desired gear.

Moving the control lever further from

30” will increase throttle opening and

boat speed.

(neutral)

i 30”

(reverse)

MAXIMUM

The control lever will not move unless

the neutral release lever is pulled up and

choke/fast idle lever is in the lowest

position.

7. OPERATION

Cruising

(neutral)

(forward)

MAXIMUM OPENING

1. Move the control lever from N

(neutral) 30’ toward F (forward) to

engage the F (forward) gear.

Moving the control lever further

from 30’ will increase the throttle

opening and boat speed.

2. For optimum fuel economy, limit

throttle opening to 2/3.

7. OPERATION

Tilt Lever

\ PUSH

SHIFT LEVER

SWITCH

(TILLER HANDLE TYPE)

(neutral)

Tilt the motor up to prevent the propel-

ler and gear case from hitting the

bottom when beaching or stopping in

shallow water.

1. Stop the boat.

2. Move the gearshift lever or control

lever to the N (neutral) position and

stop the engine.

(REMOTE CONTROL TYPE)

7. OPERATION

ENGINECOVERGRIP

TILT~EVER

3. Put the tilt lever in the TILT posi-

tion. Use the engine cover grip and

raise the motor to either the 30”, 45”

or 75” tilt position.

With the motor tilted up:

l Operate the boat at low speed.

l Do not operate in reverse.

l Monitor the cooling system

indicator for water discharge. Be

sure

that the motor is not tilted so

high that the water intakes are out

of the water.

75” (when mooring)

30’ (when cruising in

shallow water)

4. To return the motor to the normal

RUN position, move the tilt lever

away from your until it stops. Tilt

the motor up slightly, then lower the

motor slowly until it locks with the

transom angle adjusting rod. During

cruising, the motor must always be

in the normal run position.

Reverse Operation:

The tilt lever must be in the RUN

position with the motor locked to

transom angle adjusting rod. If the

motor is operated in reverse with the

tilt lever in the TILT position and/or

the motor is in one of the three tilt

angle positions, the motor is free to

tilt up.

7. OPERATION

1-1 To avoid damaging the

motor, use the utmost care when

mooring a boat, especially when its

motor is tilted up. Don’t allow the

motor to strike against the pier or

other boats.

Motor angle

INCORRECT ‘@z

INCORRECT

CAUSES BOAT TO‘

CAUSES BOAT TO

“SQUAT”

“PLOW”

GIVES MAXIMUM

PERFORMANCE

Motor angle controls boat trim. The

optimum boat trim is when the boat is

parallel with the water. If the boat is

not parallel with the water, adjust by

changing the position of the transom

angle adjusting rod (refer to page 22).

During operation, be sure:

The anti-ventilation plate remains

under water at all times.

Water flows from the cooling

system indicator.

The load is evenly distributed.

Excessive or imbalanced loading will

affect the motor’s water depth. Loading

too far forward will raise the motor out

of the water, reducing engine cooling.

Loading too much too far rearward will

push the motor deeper, reducing

performance.

The transom angle adjusting rod stops

the motors forward movement. The

motor should never be operated with

the transom angle adjusting rod re-

moved. Always check to be sure the

transom angle adjusting rod is locked

in place (refer to page 22).

7. OPERATION

Trim Tab Adjustment

TIGHTENING BOLT

The trim tab is provided to adjust for

“torque steer” which is a reaction of

the propeller rotation or propeller

torque. If during a high speed turn an

unequal amount of effort is required to

turn the boat right or left, adjust the

trim tab so that an equal amount of

effort is required.

Distribute the load evenly in the boat

and run the boat in a straight course at

full throttle. Slightly turn the steering

wheel or tiller handle for both right

and left turns to determine the amount

of effort required.

If less effort is required to make left

tums:

Loosen the trim tab tightening bolt

and turn the rear end of the trim tab

toward the left. Tighten the bolt

securely.

If less effort is required to make right

tums:

Loosen the trim tab tightening bolt

and turn the rear end of the trim tab

toward the right. Tighten the bolt

securely.

Make small adjustments at a time and

retest. Incorrect trim tab adjustment

can cause adverse steering.

The trim tab also functions as a sacrifi-

cial anode.

-1 Painting or coating the

anode will lead to rust and corrosion

damage to the outboard motor

7. OPERATION (MOTOR PROTECTION SYSTEM)

Engine Oil

Pressure and

Overheat

If the engine oil pressure drops, the

warning system could be activated and

the green oil pressure indicator light

will turn OFF.

If the engine overheats, the warning

system could be activated and the

engine speed will decrease gradually.

If the engine oil pressure drops, the

warning system could be activated and

the green oil pressure indicator light

will turn OFF and a continuous buzzer

will sound.

If the engine overheats, the warning

system could be activated, the engine

speed will decrease gradually, the red

overheat indicat light will turn ON and

a continous buzzer will sound.

The engine speed can not be increased

with a larger throttle opening until the

malfunction is corrected. When the

malfunction is corrected the engine

speed will increase gradually.

Warning System

OIL PRESSURE

w”

INDICATOR LIGHTS

(TILLER HANDLE TYPE)

(REMOTE CONTROL TYPE)

Normal

Abnor-

mal

Indicator light

Oil

Over heat

Remote

pressure

control

type only

OFF

Low oil OFF

OFF

pressure

Overheat ON

Low oil

pressure/ OFF

overheat

Buzzer

Remote

control

type only

Continuous

7. OPERATION (MOTOR PROTECTION SYSTEM‘)

When the oil pressure warning sys-

tems is activated:

1. Stop the engine immediately and

check the engine oil level (refer to

page 27).

2.If the oil is up to the recommended

level, restart the engine. If the oil

pressure warning system stops after

30 seconds, the system is normal.

3. If the oil pressure warning system

stays activated after 30 seconds,

return to the closest boat landing and

contact your closest authorized

Honda Marine or Honda Outboard

Motor dealers.

COOLING SYSTEM INDICATOR

When the overheat warning system is

activated:

1. Return the gearshift lever or control

lever to the N (neutral) position

immediately. Check to see if water

is flowing out of the cooling system

indicator.

2. If water is flowing out of the cool-

ing system indicator, continue

idling for 30 seconds. If the over-

heat warning system stops after 30

seconds the system is normal.

3. If the overheat warning system stays

activated, stop the engine. tilt up

the

motor and check the water intakes

for obstructions. If there are no

obstructions at the water intakes,

return to the closest boat landing and

contact your closest authorized

Honda Marine or Honda Outboard

Motor dealers.

7. OPERATION (MOTOR PROTECTION SYSTEM)

Over-Rev Limiter

This outboard motor is equipped with

an engine over-rev limiter which

activates when the engine speed

increases excessively. The over-rev

limiter can be activated while cruising,

or when ventilation occurs during a

sharp turn.

When the over-rev limiter is activated:

1. Reduce the throttle opening immedi-

ately and check the motor angle.

2. If the motor angle is correct but the

over-rev limiter stays activated, stop

the engine and check the condition

of the outboard motor and check the

propeller for damage. Correct or

service as necessary.

Anode

The anode is a sacrificial material

which helps to protect the outboard

motor from corrosion.

(NOTICE\ Painting or coating the

anode will lead to rust and corrosion

damage to the outboard motor.

There is a small sacrificial anode in the

water passages of the engine block.

7. OPERATION

High Altitude Operation

At high altitude, the standard carburetor air-fuel mixture

will be too rich. Performance will decrease, and fuel con-

sumption will increase. A very rich mixture will also foul

the spark plug and cause hard starting.

High altitude performance can be improved by specific

modifications to the carburetors. If you always operate

your outboard at altitudes above 6,000 feet (1,800 meters)

have an authorized Honda Marine or Outboard Motor

dealer perform this carburetor modification.

Even with carburetor modification, engine horsepower

will decrease about 3.5% for each 1,000 foot (300 meter)

increase in altitude. The effect of altitude on horsepower

will be greater than this if no carburetor modification is

made.

NOTICE

When the carburetors have been modified

for high altitude operation, the air-fuel mixture will be

too lean for low altitude use. Operation at altitudes be-

low 6,000 feet (1,800 meters) with modified carbure-

tors may cause the engine to overheat and result in

serious engine damage. For use at low altitudes, have

an authorized Honda Marine or Outboard Motor

dealer return the carburetors to original factory speci-

fications.

8. STOPPING THE ENGINE (TILLER HANDLE TYPE)

Emergency Engine Stop

ENGINE STOP SWITCH

ERGENCY STOP

Disengage the emergency stop switch

clip from the engine stop switch by

pulling the emergency stop switch lan-

yard.

It is a good idea to stop the engine with

the emergency stop switch lanyard from

time to time to be sure that the switch is

operating properly.

Normal Engine Stop

GEARSHJFT FEVER

SLOW

THROTTLE GRIP

1. Turn the throttle grip to SLOW

position and move the gearshift lev-

er to N(neutral).

8. STOPPING THE ENGINE (TILLER HANDLE TYPE)

PUSH

ENGIN’E STOP

SWITCH

2. Push the engine stop switch until

the engine stops.

8. STOPPING THE ENGINE (REMOTE CONTROL TYPE)

Emergency Engine Stop

EMERGENCY

STOP SWITCH

ERGENCY STOP

ITCH LANYARD

EMEiGENCY STOP SWITCH CLIP

Disengage the emergency stop switch

clip from the emergency engine stop

switch by pulling the emergency stop

switch lanyard.

It is a good idea to stop the engine with

the emergency stop switch lanyard from

time to time to be sure that the switch is

operating properly.

Normal Engine Stop

(neutral)

CONTR

LEVER

Move the control lever to the N

(neutral) position and turn the igni-

tion key to the OFF position.

IGNITION KEY

2. When the boat is not in use, remove

and store the ignition key.

9. TRANSPORTING

Ttailering

STEERING FRICTION

When trailering or transporting the boat

with the motor attached, it is recom-

mended that the motor remain in the

normal run position. Tighten the steering

friction adjuster securely to stop the

motor’s side to side movement.

If there is insufficient road clearance

with the motor in the normal run po-

sition, then trailer the motor in the

tilted position using a motor support

bar (refer to your motor support bar

manufacturer’s instructions) or re-

move the motor from the boat.

Horizontal Transport

I I

CASE PROTECTORS

Before removing the motor from the

boat, drain the carburetors. Follow

the carburetor drain procedure on

page 87.

Always rest the motor on the case

protectors and be sure to protect it

from impact and damage.

10. CLEANING AND FLUSHING

WASH PLUG (flush plug)

Thoroughly clean and flush the out-

board motor with fresh water after

operating in dirty or salty water.

Flush Kit (optional part)

1. Wash the outside of the outboard

motor with clean, fresh water.

2. Remove the wash plug and sealing

washer from the WASH plug hole

in the gear case. Be sure not to

remove the oil level plug from the

OIL LEVEL plug hole in the

gear case.

FLUSH K’IT COUPLER

B Keep children and

pets away from the area, and

stay clear of all moving parts

during this procedure.

3. Remove the sealing washer from

the wash plug and install the sealing

washer on the flush kit coupler.

4. Install the flush kit coupler into the

WASH plug hole and connect a

fresh water hose to the flush kit

coupler.

5. Move the gear-shift lever or control

lever to the N (neutral) position.

Blush the outboard motor in the

neutral position only.

6. Turn on the fresh water supply to

the flush kit coupler.

m Running the outboard

motor without sufficient cooling

water will damage the water pump

and overheat the engine.

10. CLEANING AND FLUSHING

CObLING SYSTEM

INDICATOR

7. Start the engine. Monitor the cool-

ing system indicator. Stop the

engine if water does not come out

of the cooling system indicator and

check the fresh water supply. If the

fresh water supply is insufficient it

may be necessary to temporarily

cover the three water intakes with

duct tape.

8. Allow the engine to run at idle for

at least 5 minutes to clean the inside

of the motor.

9. Stop the motor and remove the

flush kit coupler.

lO.Remove the sealing washer from

the flush kit coupler and install the

sealing washer on the wash plug.

If tape was used to cover the three water

intakes in step 7, remove the tape now.

11 Install the wash plug into the gear

case securely.

11. MAINTENANCE

Periodic maintenance and adjustment

are important to keep the motor in the

best operating condition. Service and

inspect according to the MAINTENA-

NCE SCHEDULE.

Stop the engine before performing any

maintenance.

If it is necessary to run the engine

make sure the area is well ventilated.

Never run the engine in an enclosed or

confined area.

- Exhaust contains

poisonous carbon monoxide

gas; exposure can cause loss of

consciousness and may lead to

death.

-Running the

outboard

motor

without suffkient cooling

water will damage the water pump

and overheat the engine.

To maintain the cooling system effi-

ciency, flush the outboard motor with

fresh water after operating in salt water

or dirty water. Make sure there is at

least 2 inches of water above the

ventilation plate. Or follow the flushing

procedure (refer to pages 65 and 66).

11. MAINTENANCE

Tool Kit and Spare Parts

The following tools and spare parts

are supplied with the outboard motor

for maintenance, adjustment, and

emergency repairs.

TOOL KIT

10 x 12

WRENCH

FLAT SCREWDRIVER

PHILLIPS SCREWDRIVER

OIL CHECK SCREWDRIVER

PLIERS

SCREWDRIVER HANDLE

TOOL BAG

18 x 19

SOCKET

WRENCH

11. MAINTENANCE

MAINTENANCE SCHEDULE

Use only genuine HONDA parts or their equivalent for maintenance or repair.

Replacement parts which are not of equivalent quality may damage the motor.

REGULAR SERVICE PERIOD (3)

Performed at evety indicated

FIRST EVERY

EVERY

month or operating hour EACH USE

20 HRS

intervals, whichever comes first.

200 HRS

400 HRS OR

OR MONTH

OR YEAR

OR YEARLY

2 YEARS

Engine oil

Check level

Change 0

Gear case oil

Check level and Check

for water contamination

Change 0

Engine oil filter

Timing Belt

Change

Check-readjust

Carburetor linkage

Check

Idling Adjust

Valve clearance

Check-readjust

Spark plug(s) Check-clean (Replace if necessary)

Prooeller and cotter oin

Check

aa O(2)

O(2)

O(2) O(2)

Lubrication

(Replace if necessary)

Grease

O(2)

O(1)

11. MAINTENANCE

REGULAR SERVICE PERIOD (3)

Perform at every indicated month

or operating hour intervals,

whichever comes first.

1 EACH

USE / osm 1 l=; !;k$P 4;;%

Fuel tank and filter

(I) Lubricate more frequently when used in salt water.

(2) These items should be serviced by an authorized Honda Marine or Honda

Outboard Motor dealer, unless the owner has the proper tools and is mechani-

callly proficient. See the Honda Shop Manual.

(3) For professional commercial use, log hours of operation to determine proper

maintenance intervals.

11. MAINTENANCE

Engine Oil

Engine oil is a major factor affecting

engine performance and service life.

Oil check interval:

Each use.

Oil change interval:

After the first 20 hours, then every

100 hours. (Refer to the mainte-

nance schedule page 68).

OIL CAPACITY:

1.7 US qt (1.6 lit) . ..When oil filter is

not replaced

2.0 US

qt (1.9 lit) . ..When oil filter is

replaced

Recommended oil:

BF25A...SAElOW-30 engine oil or

equivalent, API Service classfication

SG, SH.

BF30A...SAE5W-30 engine oil,

API Service classification Fuel

Efficient SG, SH.

OIL FILLER

cqp

/--

Engine Oil Replacement

Drain the oil while the engine is still

warm to assure rapid and complete

draining.

1. Position the outboard motor verti-

cally, and remove the engine cover.

Remove the oil filler cap.

11. MAINTENANCE

2. Remove the engine oil drain bolt

and washer using a 12 mm wrench

and drain the engine oil.

3. Install a new sealing washer on the

drain bolt and tighten the bolt

securely.

4. Refill to the upper level mark on the

oil level dipstick with the recom-

mended oil.

To avoid incorrect gauging of the

engine oil level, inspect the oil level

when the engine has cooled. The

outboard motord motor needs to

be in the vertical position.

5. Reinstall

the oil filler cap.

Always wash your hands after handling

used oil.

Also, please dispose of used motor oil in

a manner that is compatible with the

environment. We suggest you take it in a

sealed container to your local service

station reclamation center. Do not throw

in the trash, pour it on the ground,

down a drain, or into the water.

11. MAINTENANCE

Gear Oil

Oil check interval:

Every 100 hours.

Oil change interval:

After the first 20 hours, then every

200 hours. (Refer to the maintenance

schedule page 69).

OIL CAPACITY:

0.33 US qt. (0.29 lit)

Recommended oil:

Outboard motor SAE 90 hypoid.

gear oil API Service Classification

(GL-4 or GL-5).

LEVEL PLUG

DRAIN PLUG

Gear Oil Level/Check

1. Position the outboard motor verti-

cally.

2. Remove the level plug and see if oil

flows out. If no oil flows out, fill

through the drain plug hole until the

oil starts to flow out through the

level plug hole. If there is water in

the oil, the water will flow out first

when the drain plug is removed, or

the oil will be milky colored. If the

oil appears abnormal contact you

closest authorized Honda Marine or

Honda Outboard Motor dealer.

GEAR OIL BOTTLE

gear oil bottle is recommended to

fill the gear case.

The end of the drain plug is a mag-

net. Remove all metal particles from

the end of the drain plug before

reinstalling. Do not reinstall the drain

plug in the level plug hole.

3. Use new sealing washers and rein-

stall the level plug and drain plug

securely.

11. MAINTENANCE

Gear Oil Change

1. Position the outboard motor verti-

cally.

2. Remove the level plug and drain

plug to drain the oil. Inject oil

through the drain plug hole until it

starts flowing out through the level

plug hole. Use new sealing washers

and reinstall the level plug first and

then the drain plug securely.

OIL CAPACITY:

0.30 US qt. (0.29 lit)

Spark Plugs

To ensure proper engine operation, the

spark plugs must be properly gapped

and free of deposits.

Check-replace interval:

After the first 20 hours, then every

200 hours. (Refer to the mainte-

nance schedule page 69).

Recommended spark plug:

DR7EA (NGK),

X22ESR-U (NIPPON DENSO)

Use

only the recommended spark

plugs or equivalent.

m Spark plugs which have

an improper heat range may cause

engine damage.

I. Allow the engine to cool. The spark

plugs will be hot if the engine has

been running.

2. Remove

the

engine cover.

SPA

PLUG CAPS

WRENCH

3. Disconnect the spark plug caps

from the spark plugs.

4. Use the wrench and screwdriver

supplied in the tool kit to remove

the spark plugs.

5. Check the spark plugs. Replace the

spark plugs if there is apparent

wear, or if the insulators are

cracked or chipped. Clean the spark

plugs with a wire brush if they are

to he reused.

11. MAINTENANCE

0.024-0.028

(0.6-0.7

mm)

6. Measure the plug gaps with a feeler

gauge.

The gaps should be 0.024-0.028 in

(0.6-0.7

mm). Correct as necessary

by carefully bending the side elec-

trode.

7. Thread the plugs in by hand to pre-

vent cross threading.

8. After the spark plugs are seated,

tighten with a spark plug wrench to

compress the washers.

If installing new spark plugs, tighten l/2

turn after the spark

plugs seat to com-

press the washers. If reinstalling used

spark plugs, tighten l/8 l/4 turn after the

spark plugs seat to compress the wash-

ers.

w The spark plugs must be

securely tightened. A loose spark

plug can become very hot and may

cause engine damage.

Overtightening the spark plugs can

damage the threads.

11. MAINTENANCE

Battery (not included)

Minimum requirements

12V-7OAI-I marine cranking battery.

Maintenance interval

Refer to the maintenance schedule

page 70 and your battery manufac-

turer’s instructions for servicing or

recharging information.

Check the battery cables to be sure

they are securely connected to the bat-

tery terminals. Tighten if necessary.

If the battery terminals are corroded or

if recharging is necessary, remove the

battery from the boat to clean or

recharge.

tains corrosive sulfuric acid.

Contact with eyes or skin caus-

es burns.

Wear protective clothing and

use eye protection when

working near the battery.

POISON - KEEP OUT OF REACH

OF CHILDREN

NEGATIVE (-)

CARRYlNG

TERMINAL

POSITIVE (+) BA’ITERY CABLE (red)

EMERGENCY PROCEDURES:

Eyes

Flush with water from a cup or oth-

er container for at least 15 minutes.

Call a physician immediately.

Skin

Remove contaminated clothing.

Flush skin with large quantities of

water. Call a physician.

If swallowed

Drink water or milk and call your

local poison control center or physi-

cian immediately.

11. MAINTENANCE

Battery cleaning

B Batteries produce

explosive hydrogen gas. A spark

or flame can explode the battery

causing

serious Injury or blind-

ness. Provide adequate ventila-

tion.

Keep sparks and flames away.

Follow the procedure below

carefully.

Removal:

1. Disconnect the negative (-) battery

cable first, then disconnect the posi-

tive (+) battery cable.

2. Remove the battery from the boat.

Clean the battery terminals with a

wire brush or sand paper. Clean the

battery with a solution of baking soda

and warm water, taking care not to

get the solution of water in the

battery cells. Dry the battery thor-

oughly.

3. Clean the battery cable ends with a

wire brush or sand paper.

Installation:

To protect the battery from mechani-

cal damage and to prevent the bat-

tery from falling or tipping over, the

battery must be:

l Installed in the correct size corro-

sion-resistant battery box.

l Properly secured in the boat.

l Secured in a location free from di-

rect sunlight and water spray.

l Secured away from the fuel tank

to avoid potential sparks near the

fuel tank.

1. Return the battery to the boat and

install it in the battery box.

2. Connect the positive (+) battery

cable first, then connect the nege-

tive (-) battery cable. Tighten the

cable nuts securely.

3. Coat the battery terminals and ca-

ble ends with marine anticor-

rosion grease.

4. Put the cover on the battery box and

secure the battery box to the boat.

DC Receptacle (Equipped type only)

DCRECEP’iACLE

TO ACCESS0

Refer page 76 for battery requirements

and additional battery handling proce-

dures.

Batteries produce explosive gases.

Keep sparks, flames, and cigarettes

away. To prevent the possibility of

creating a spark near the battery,

connect the charging cord first to the

battery and then to the outboard

motor; when disconnecting the

charging cord remove it from the

outboard first.

11. MAINTENANCE

The DC

receptacle provides a

volt,

6 amp output for battery charging. The

charging circuit is protected by a 15

amp fuse that is mounted inside the

engine cover.

Be sure that the positive (Red) battery

lead is connected to the (+) plug

terminal. (refer to page 76)

l Reversing the battery leads will

damage the charging system and/

or the battery.

l When it is not in use, keep the DC

receptacle dry and clean by

covering it with the rubber cap

provided.

The outboard motor’s 12 volt output is

intended for battery charging only.

Electrical accessories should be con-

nected to the battery as shown. (refer to

page 76)

Lubrication

Lubrication interval: After the first 20 hours, then every 100 hours.

(Refer to the maintenance schedule page 69.)

Apply marine anticorrosion grease to the following parts:

CLAMP SCREWS

SWIVEL CASE-1

11. MAINTENANCE

ADJUSTING ROD

PROPqLLER SHAFT

11. MAINTENANCE

Engine Fuel Filter

FUEiFILTER

The engine fuel filter is located under

the engine cover between the fuel cou-

pling and the fuel pump. Water or

sediment accumulated in the fuel filter

can cause loss of power or hard start-

ing.

Check interval:

Every 100 hours (Refer to the

maintenance schedule page 70).

Change interval:

Every 400 hours (Refer to the

maintenance schedule page 70).

B Gasoline is

extremely flammable, and gaso-

line vapor can explode, causing

serious injury or death.

Do not

smoke or allow flames or sparks

in your working area. KEEP

OUT OF REACH OF CHILDREN.

Always work in a well-ventilated area.

Make sure that any fuel drained from

the outboard motor is stored in an

approved gasoline container. Be care-

ful not to spill any fuel when replacing

the filter. Spilled fuel or fuel vapor

may ignite. If any fuel spilled, make

sure the area is dry before starting the

engine.

CONNECTER

FUEL HOSE

Check

1. Disconnect the fuel hose connector

from the outboard motor.

2. Remove the engine cover.

11. MAINTENANCE

FUEL.FILTER

3. Lift the fuel filter up from the engine

under case.

4. Check the fuel filter for water accu-

mulation or sediment. If no water

or sediment are found, reinstall the

fuel filter properly.

FUEL HOSES

FUEL H63E CLIPS

Change

1. Remove the fuel filter.

Before removing the fuel filter, to

prevent fuel leakage, place fuel hose

clamps on the fuel hoses at each side of

the fuel filter.

ARROW (Fuh Flow Direction)

2. Install the new fuel filter so the

arrow on the fuel filter points

toward the fuel pump.

Fuel flow will be reduced if the fuel

filter is installed backward.

3. Connect the fuel hoses to the fuel

filter securely with the hose clips.

Remove the fuel hose clamps used

to close the fuel hoses.

11. MAINTENANCE

4. Securely connect the fuel hose

connector to the outboard motor

(refer to page

33).

5. Prime the engine using the primer

bulb page 34. Check for fuel leaks.

Repair any fuel leaks if necessary.

If loss of power or hard starting are

found to be caused by excessive water or

sediment accumulation in the fuel filter,

inspect the fuel

tank.

Clean the

fuel tank and tank filter if

necessary. It may be necessary to drain

the fuel tank completely and refill with

fresh gasoline.

Fuel Tank and Filter

Cleaning interval:

Every 200 hours (Refer to the

maintenance schedule page 70).

Inspect the condition of the fuel cap

gasket, fuel hose, and the O-ring seals

in the fuel hose connectors. Replace

the fuel cap gasket, hose, or fuel con-

nectors if they are cracked, damaged

or leak fuel. Be sure the fuel hose is

not kinked.

Fuel Tank Cleaning

1. Disconnect the fuel hose from the

fuel tank.

extremely flammable, and gaso-

line vapor can explode, causing

serious injury or death. Do not

smoke or allow flames or sparks

in your working area. KEEP

OUT OF REACH OF CHILDREN.

2. Empty the gasoline from the fuel

tank into an approved gasoline con-

tainer. Pour in a small quantity of

fresh gasoline,

and clean the tank

thoroughly. Drain

and dkpose of

the gasoline properly.

11. MAINTENANCE

FUEL TANK HOSE

CONNECTOR

_ FUEL TANK

FILTER

Fuel Tank Filter

Cleaning/Replacement

1. Turn the fuel tank hose connector

counterclockwise to remove the

fuel tank filter.

2. Clean the fuel tank filter with non-

flammable cleaner or solvent.

Replace the fuel tank filter if neces-

sary.

3. After cleaning or replacement, rein-

stall the fuel tank filter and fuel

tank hose connector securely.

Fuse Replacement

(Electric starter type)

BLOWN FUSE

If the fuse is blown, running the engine

will not charge the battery and the

electric starter will not work.

FUSE RATING: 15A

Never use a fuse with a different rat-

ing from that specified.

If the fuse is blown, check the cause,

then replace the fuse with a spare fuse

of the same rated capacity. Unless the

cause is found, the fuse may blow

again.

FUSE COVER

Replacemeht

1. Stop the engine.

2. Remove the engine cover.

3. Pull the blown fuse out of the clip.

4. Push a new 15A fuse into the clip.

A spare 15A fuse is located in the fuse

holder. If the spare fuse is not avail-

able, the motor will need to be started

with the pull starter rope (refer to the

emergency start procedure page 42).

Il. MAINTENANCE

Propeller

PROPELLER

COTTER PIN (stainless)

-CASTLE NUT

LAIN WASHER

ARINE GREASE

THRUST WASHER

If the propeller is damaged, replace it

as follows:

Removal:

Remove the

cotter pin then remove the

14 mm castle nut, 15 mm plain washer,

propeller and thrust washer.

COTTER PIN (stainless)

Installation:

Install the thrust washer with the

grooved side toward the gear case, then

install the new propeller in the reverse

sequence of removal.

Hand tighten the castle nut until the 3

mm cotter pin can be installed. If

necessary, tighten the castle nut just

enough to align the hole with the

groove in the nut.

Use a new genuine Honda cotter pin

and bend the cotter pin

ends

shown.

11. MAINTENANCE

Submerged

Motor

A submerged motor must be serviced

immediately after it is recovered from

the water in order to minimize corro-

sion.

Immediately take the outboard motor to

the closest authorized Honda Marine or

Honda Outboard Motor dealer or if you

are far from a dealership, proceed as

follows:

1. Remove the engine cover, and rinse

motor with fresh water to remove salt

water, sand, mud, etc.

B Gasoline is

extremely flammable, and gaso-

line vapor can explode, causing

serious injury or death. D6 not

smoke or allow flames or sparks

in your working area. KEEP

OUT OF REACH OF CHILDREN.

DRAIN SCREW

2. Loosen the carburetor drain screws,

drain the contents of the carburetors

into an approved gasoline container,

then tighten the drain screws.

3. Disengage the emergency stop

switch clip from the emergency

stop switch and remove the spark

plugs.

4. Pull the recoil starter several times

to remove the water from the

cylinders. (Recoil starter type)

EMERGENCY STARTER ROPE

Remove the flywheel cover follow-

ing the emergency starting proce-

dure (refer to page 42) and remove

the water from the cylinders by

pulling the emergency starter rope

several times. (Electric starter type)

If the motor was running when it

submerged, there may be mechani-

cal damage, such as bent connecting

rods. If the engine binds when

rotated with the emergency starter

rope or recoil starter, do not proceed

or attempt to run the motor until it

has been repaired.

11. MAINTENANCE

5. Change the engine oil (refer to page

71).

6. Put a teaspoon of engine oil into

each spark plug hole, then rotate the

engine using the pull starter rope or

recoil starter several times to lubri-

cate the inside of the cylinders.

Reinstall the spark plugs.

m Running the outboard

motor without suffkient cookg

water will damage the water pump

and overheat the engine.

7. Engage the emergency stop switch

clip with the emergency stop switch

and attempt to start the engine (be

sure the water level is at least 2

inches above the ventilation plate).

If the engine fails to start,

remove the spark plugs, clean

and dry the electrodes, then

reinstall the spark plugs and

attempt to start the engine again.

If the engine starts, and no

mechanical damage is evident,

continue to run the engine for a

l/2 hour or longer.

If there was water in the engine

crankcase, or the used engine oil

showed signs of water contami-

nation, then a second engine oil

change should be performed

after running the engine for a

l/2 hour.

8. Take the outboard motor to your

closest authorized Honda Marine or

Honda Outboard Motor dealer for

inspection and service as soon as

possible.

12. STORAGE

For longer service life of the outboard

motor, have your outboard motor

serviced by an authorized Honda

Marine or Honda Outboard Motor

dealer before storage.

If you are unable to take the motor to

-your dealer, proceed as follows:

Draining the Carburetors

extremely flammable, and gaso-

line vapor can explode, causing

serious injury or death. Do not

smoke or allow flames or sparks

in your working area. KEEP OUT

OF REACH OF CHILDREN.

Be careful not to spill gasoline. Spilled

gasoline or gasoline vapor may ignite.

If any gasoline is spilled, make sure

the area is dry before storing or trans-

porting the motor. Do not smoke or

allow flames or sparks where gasoline

is drained or stored.

DRAIN SCREW

1. Disconnect the fuel hose connector.

2. Pull the #3 carburetor drain hose

outside of the motor pan.

3. Loosen the drain screw of the #3

carburetor and drain the carburetor.

Catch the draining gasoline in an

approved gasoline container.

4. Drain the #l and #2 carburetors in

the same manner using the #3 car-

buretor drain hose.

#l CARBURETOR

DRAIN SCREW

#2 CARBURETOR

DRAIN SCREW

’ #3 CARBURETOR

DRAIN SCREW

hAIN HOSE

5. After thoroughly draining the car-

buretors, tighten the drain screws

securely.

6. Reinstall the drain hose back on the

#3 carburetor.

12. STORAGE

Outboard Motor Position

Transport and store the motor either

vertically or horizontally, as shown

above. Store the outboard motor in a

well-ventilated area free from direct

sunlight and humidity.

Vertical transport or storage:

Attach the stem bracket to stand.

CASE PROTECTORS

Horizontal transport or storage:

Rest the motor on the case protectors.

[NOTICEI Improper transport or

storage can damage the motor or

cause oil leakage.

13. TROUBLESHOOTING

(1) Engine does not start.

Fuel

Fuel is not fed -

to carburetor.

There is no gasoline

in fuel tank.

Vent knob is not open or

vent clogged.

Fuel filter is clogged.

Fuel line is kinked.

- Fuel line is connected

improperly.

Fuel pump is faulty.

primer bulb is faulty.

Check valve in connector

is faulty

clogged.

Electrical

Sparks across

Insufficient -

Spark plug gap is small.

sparkplug gap

sparks

Weak starter motor

rotation. (Electric starter

type)

Normal -

Recheck the fuel system.

sparks

No sparks -

across spark

Plug gap

- Spark plug

is faulty.

Contamination

Incorrect gap

Broken spark plug

-i!E

Fulser coil is faulty.

Current leaks from

high tension cord.

C.D.I. unit is faulty.

- Exciter coil is faulty.

Ignition coil is faulty.

Wire harness is faulty.

Current leaks from engine stop

switch cord.

Stop switch does not return

satisfactorily.

Spark plug is improperly installed.

. Emergency stop switch is improperly

. _._

installed.

- Shift lever is not in N position.

13. TROUBLESHOOTING

(2) Engine starts but immediately stops. Engine some

times stops while cruising.

Fuel

Engine overheats

No gasoline in fuel tank.

There is gasoline -

in fuel tank.

Water is mixed with

gasoline.

Normal sparking

Vent knob is not open

or vent is clogged.

- Fuel filter is clogged.

k Air screw IS open too

wide.

Idling speed is too

slow.

- Carburetor vent is

clogged.

- Fuel pump is faulty.

- Air in fuel pump.

- Air enters through fuel

line connector.

- Au enters through primer

bulb.

Water intake screens

are clogged.

Spark plug is not of speci-

fied rating.

Water pump is faulty.

Thermostat is clogged.

Thermostat is faulty.

Water tube or passage

is clogged.

Exhaust gas is entering

cooling system.

Ignition system

Lubrication system

Specified oil

14. SPECIFICATIONS

C.D.1

Trochoid pump pressure lubrication

Engine:

API standard

(SC, SH) SAE IO W-30

Gear case: API standard (GL-4/5)

SAE 90 outboard motor gear oil

14. SPECIFICATIONS

Specifications are subject to change without notice.

14. SPECIFICATIONS

Starter system

Ignition system

Lubrication system

Specified oil

Recoil starter Electric starter

C.D.I.

Trochoid pump pressure lubrication

Engine: API standard

(Fuel Efficient SC, SH) SAE 5W-30

Gear case: API standard (CL-4/5)

SAE 90 outboard motor gear oil

14. SPECIFICATIONS

Specifications are subject to change without notice.

15. WARRANTY SERVICE

Owner Satisfaction

Your satisfaction and good will are

important to your dealer and to us. All

Honda warranty details are explained

in the Distributor’s Limited Warranty.

Normally, any problems concerning

the product will be handled by your

dealer’s service department. If you

have a warranty problem that has not

been handled to your satisfaction, we

suggest you take the following action:

l Discuss your problem with a mem-

ber of dealership management.

Often complaints can be quickly

resolved at that level. If the prob-

lem has already been reviewed with

the Service Manager, contact the

owner of the dealership or the

General Manager.

l In order to contact the Honda

Marine Customer Service Office,

you can write to:

American Honda Motor Co., Inc.

Honda Power Equipment Division

Customer Service Office

4475 River Green Parkway

Dulutb, GA 30 136-2565

Or telephone: (404) 497-6400

We will need the following information

in order to assist you:

- Your name, address, and telephone

number

- Product model and serial number

- Date of purchase

- Dealer name and address

- Nature of the problem

Your purchase of a Honda product is

greatly appreciated by both your dealer

and American Honda Motor Co., Inc.

We want to assist you in every way

possible to assure your complete

satisfaction with your purchase.

Current customer service contact information:

Your owner's manual was written to cover most of the questions you might ask about

your Honda. Any questions not answered in the owner's manual can be answered by

your Honda dealer. If your dealer doesn't have an immediate answer, they should be

able to get it for you.

If you have a difference of opinion with your dealer, please remember that each

dealership is independently owned and operated. That's why it's important to work to

resolve any differences at the dealership level. If the service personnel are unable to

assist you, please discuss your concerns with the dealer management such as the

Service Manager or the dealership's owner.

If you need to contact American Honda regarding your experiences with your Honda

product or with your dealer, please send your comments to the following address:

American Honda Motor Co., Inc.

Marine Division

Customer Relations Office

4900 Marconi Drive

Alpharetta, GA 30005-8847

Or telephone: (770) 497-6400 M-F, 8:30 am - 7:00 pm EST

When you write or call, please provide the following information:

• Your name, address and telephone number (complete with area code)

• Model and complete serial number

• Date of purchase

• Name and location of the selling dealer

• Name and location of the servicing dealer (if different)

• A detailed description of your concerns

16. WIRING DIAGRAM

TILLER HANDLE TYPE (with recoil starter)

16. WIRING DIAGRAM

TILLER HANDLE

-- ------_

: - -iFjOA outboard

TYPE (with electric starter)

BF25A outboard

C---------------J

16. WIRING DIAGRAM

REMOTE CONTROL TYPE

BF25A outboard

17. INDEX

Anode Metal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Battery

(not included) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Break-in

Procedure

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Choke Knob . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Choke/Fast Idle Lever

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CLEANING

AND

FLUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

COMPONENT IDENTIFICATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

CONTROLS & INSTRUMENTS (common) . . . . . . . . . . . . . . . . . . .

CONTROLS

TILLER HANDLE TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 1

REMOTE CONTROL TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Cooling

System

Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 1

Cruising

TILLER HANDLE TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REMOTE CONTROL TYPE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Emergency

Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Emergency Stop Switch Lanyard

TILLER HANDLE TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

REMOTE CONTROL TYPE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Engine

Cover Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine Fuel

filter

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Engine

Oil

Level check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure and Overheat Warning System

................

Replacement

...........................................................

7 1

Over-Rev

Limiter .........................................................

Start Button

..................................................................

1 1

Stop

Switch ..................................................................

Fuel

Cap/Gauge/Vent Knob

.................................................

Level..

............................................................................

.28

Line

Connection ...........................................................

Tank

and Filter .............................................................

Tank and

Vent Knob .....................................................

.33

Fuse Replacement

..............................................................

Fuel Recommedations

.......................................................

Gear Oil

.............................................................................

Gear Shifting

TILLER

HANDLE TYPE

...........................................

REMOTE CONTROL TYPE

......................................

5 1

High Altitude Operation

....................................................

Ignition

Switch.. .................................................................

Lubrication

.........................................................................

MAINTENANCE ..............................................................

SCHEDULE

.................................................................

Manual

Choke

Knob .................................................................

MOTOR PROTECTION SYSTEM

..................................

Neutral Release Lever..

......................................................

17. INDEX

Oil Pressure Indicator Light.. ............................................. 14

Oil Pressure Indicator Light/Buzzer

..................................

Other Checks ..................................................................... 32

Over-Rev Limiter.. ............................................................. 59

Overheat Indicator Light/Buzzer ....................................... 19

Oxygenated Fuels ..............................................................

PRE-OPERATION CHECKS

...........................................

Propeller and Cotter Pin..

...................................................

3 1

Remote Control

Friction Adjustment

.....................................................

Lever ............................................................................ 15

SAFETY .............................................................................. 6

INFORMATION ............................................................ 7

LABELS..

.......................................................................

Spark Plugs ........................................................................ 74

SPECIFICATIONS..

..........................................................

9 1

STARTING THE ENGINE

REMOTE CONTROL TYPE

......................................

TILLER HANDLE TYPE

...........................................

Steering (tiller handle)

.......................................................

Friction Adjustment (common)

....................................

3 1

Stern bracket

PRE-OPERATION CHECKS..

....................................

STOPPING THE ENGINE

REMOTE CONTROL TYPE

......................................

TILLER HANDLE TYPE ...........................................

6 I

STORAGE

.........................................................................

Submerged Motor ..............................................................

Throttle

Friction Knob.

..............................................................

Grip

................................................................................

Opening Indicator

........................................................

Tilt Lever

...........................................................................

Tool Kit..

............ ................................................................

Tool Kit and Spare Parts

....................................................

Transom Angle Adjusting Rod

..........................................

TRANSPORTING.

............................................................

Trim Tab ............................................................................

Trim Tab Adjustment

.........................................................

TROUBLESHOOTING

....................................................

Starting Problems..

.......................................................

WARRANTY SERVICE.. .................................................

Water Intakes

............ .........................................................

WIRING DIAGRAM

.........................................................

.96

100

Honda BF25 - 30 Outboard Engines 25 and 30 hp 4 Stroke Motor Specs and Features

Product's Documents

Owner's Manuals BAJL-1000001 through 1999999

Specifications

Honda BF25 - 30 Questions and Answers