IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
TECHSUPPOR[email protected]1-847-429-9263 (M-F 8AM-5PM CST)
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
2500W PORTABLE
INVERTER GENERATOR
Instruction Manual
MODEL 56250i
CONTENTS
WELCOME 3
Specifications ....................................................................................................3
Introduction ......................................................................................................4
SAFETY 5
Safety Information ............................................................................................5
Generator Safety Warnings ...............................................................................6
9
Unpacking & Packing List .................................................................................9
Know Your Inverter Generator .........................................................................10
Generator Preparation .....................................................................................12
BEFORE OPERATING
16
Starting Your Generator ..................................................................................16
Using Your Generator ......................................................................................18
Shutting Off Your Generator ............................................................................23
Maintenance ....................................................................................................24
Transportation & Storage ................................................................................31
Troubleshooting Guide ....................................................................................32
Wiring Diagram ...............................................................................................33
Exploded View & Parts List .............................................................................34
Warranty Statement ........................................................................................41
OPERATION & MAINTENANCE
2
To purchase accessories for your tool, visit WENPRODUCTS.COM
Parallel Connection Kit
Magnetic Oil Dipstick (Model Number 55201)
Universal Weatherproof Inverter Generator Cover (Model 56200iC)
SPECIFICATIONS
Rated Wattage 1900W
Surge Wattage 2500W
Rated Voltage
AC: 120V
DC: 5V
Rated Amperage
AC: 15.8A
DC: 2.1A
Phase Single
Frequency 60Hz
Decibel Rating 65 dBA (25% Load)
Product Dimensions 17.3 in. x 11.4 in. x 17.3 in.
Product Net Weight 37.5 Pounds
GENERATOR
ENGINE
Engine Type 4 Stroke, OHV, Single Cylinder With Forced Aircooling System
Engine Displacement 80cc
Fuel Tank Capacity 1 Gallon (4L)
Oil Capacity 13.5 fl. oz. (400mL)
Half-Load Run Time 4.38 Hours
Lubrication System Splash Lubrication
Spark Plug Type Torch A5RTC (NGK CR5HS)
Spark Plug Gap 0.240 in. - 0.031 in. (0.6 - 0.8mm)
Spark Plug Torque 9.0 - 11.0 ft-lb (12 - 15 Nm)
3
INTRODUCTION
Thanks for purchasing the WEN 2500-Watt Inverter Generator. Refer to the illustration below for the location of the
serial number on the specifications label. Record the generator information in the spaces provided below. If assis-
tance for information or service is required, please contact customer service by calling 1-847-429-9263, M-F 8-5
CST; you will be asked to provide the following generator information when calling.
Generator Model Number: 56250i
Date of Purchase: _______________________________________________
Purchased From: ________________________________________________
Serial Number: _________________________________________________
TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR: We recommend running your generator at least once a
month for 20 to 30 minutes. Start the generator according to the instructions and plug a small load in to make
sure the outlet is producing electricity.
SERVICE RECORD
Record the service dates of your generator in the chart below. Please perform maintenance checks and operations
according to the “Maintenance” section of the manual.
Service Record Date Date Date Date Date Date
Change Oil
Change Spark Plug
Clean Fuel Tank
Clean Air Cleaner
Clean Spark Arrestor
4
SERIAL NUMBER
SAFETY INFORMATION
SAFETY INTRODUCTION
Safety is a combination of common sense, staying alert, and knowing how your tool works. This manual contains
important information regarding the generator’s potential safety concerns, as well as preparation, operation, and
maintenance instructions. Before operating this generator, be sure to read and observe all warnings and instructions
both on the generator labels and in this instruction manual. Failure to follow all instructions listed below may result
in personal injury.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur.
WEN reserves the right to change this product and specifications at any time without prior notice.
At WEN, we are continuously improving our products. If you find that your tool does not exactly match this manual,
please visit wenproducts.com for the most up-to-date manual or contact customer service at 1-847-429-9263, M-F
8-5 CST.
Keep this manual available to all users during the entire life of the tool and review it frequently to maximize
safety for both yourself and others.
SAVE THESE SAFETY INSTRUCTIONS.
SAFETY SYMBOLS
The purpose of following safety symbols is to attract your attention to possible dangers. The safety symbols, and
their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves
eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention
measures.
NOTICE REGARDING EMISSIONS
Engines that are certified to comply with U.S. EPA emission regulations for SORE (Small Off Road Equipment), are
certified to operate on regular unleaded gasoline, and may include the following emission control systems: (EM)
Engine Modifications and (TWC) Three-Way Catalyst (if so equipped).
QUESTIONS? PROBLEMS?
In order to answer questions and solve problems in the most efficient and speedy manner, contact customer
service at 1-847-429-9263, M-F 8-5 CST or email [email protected].
WARNING! Before operating the generator, make sure to read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result in electric shock, fire or serious injury.
DANGER: indicates a hazard, which, if not avoided, will result in death or serious injury.
WARNING: indicates a hazard, which, if not avoided, could result in death or serious injury.
CAUTION: indicates a hazard, which, if not avoided, might result in minor or moderate injury.
CAUTION! when used without the alert symbol, indicates a situation that could result in damage to the machine.
5
GENERATOR SAFETY WARNINGS
DANGER! CARBON MONOXIDE
Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide (CO). This
is a poison gas you cannot see or smell. If you can smell the generator exhaust, you are breathing CO. But even
if you cannot smell the exhaust, you could be breathing CO.
NEVER use a generator inside homes, garages, crawl spaces, or other partially enclosed areas. Deadly levels
of carbon monoxide can build up in these areas. Using a fan or opening windows and doors does NOT supply
enough fresh air. ONLY use a generator outside and far away from windows, doors, and vents. These openings
can pull in generator exhaust.
Even if you use a generator correctly, CO may leak into the home. ALWAYS use a battery-powered or battery-
backup CO alarm in the home. If you start to feel sick, dizzy, or weak after the generator has been running, move
to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
WARNING! RISK OF EXPLOSION. HIGHLY FLAMMABLE: This generator may emit highly flammable and
explosive gasoline vapors, which can cause severe burns or even death, if ignited. A nearby open flame can lead
to explosion even if not directly in contact with gasoline.
• Do not operate near open flame, heat, or any other ignition source. Do not smoke near the generator.
• Always operate on a firm, level surface.
• Always turn generator off before refueling. Allow generator to cool for at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in tank.
• Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank. Allow for
expansion. Always check for spilled fuel before operating.
• If fuel spills, move the generator at least 30 feet away from the spill and wipe clean any spilled fuel before
starting the engine.
• Empty fuel tank before storing or transporting the generator.
WARNING! If this generator is used as a supply for a building’s wiring system, the generator must be in-
stalled by a qualified electrician and connected to a transfer switch as a separately derived system in accordance
with all applicable laws and electrical codes and the National Electrical Code, NFPA 70. The generator shall be
connected to a transfer switch that switches all conductors excluding the equipment grounding conductor. The
frame of the generator shall be connected to an approved grounding electrode.
CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals and produces exhaust known
to the State of California to cause cancer, birth defects and other reproductive harm.
6
7
GENERATOR SAFETY WARNINGS
OPERATING ENVIRONMENT
1. Using a generator indoors can kill you in minutes.
Only use a generator outside and far away from win-
dows, doors and vents.
2. Do not smoke near the generator.
3. Do not operate near open flame, heat, or flammable
materials. This generator may emit highly flammable
and explosive gasoline vapors, which can cause severe
burns or even death if ignited. A nearby open flame can
lead to an explosion even if it isn’t directly in contact with
gasoline.
4. Do not expose the generator to rainy or wet con-
ditions; doing so significantly increases the risk of
electrical shock. Never handle the generator, electronic
devices, or any cord while standing in water, while bare-
foot, or when hands or feet are wet.
5. Always operate the generator on a dry, firm, level
surface.
6. The generator should have at least 5 feet of clear-
ance from buildings or other equipment during opera-
tion.
7. Do not allow children or non-qualified persons to
operate the generator.
GENERATOR PREPARATION
1. Always ground the generator before using it to maxi-
mize safety (see “Ground the Generator” section).
2. Do not overfill fuel tank, as gasoline may expand
during operation. Do not fill to the very top of the tank.
Leave room for gasoline expansion. Always check for
spilled fuel before operating.
3. If any part of the generator, electrical device or pow-
er cord is broken, damaged, or defective, make sure
it is repaired or replaced before operation. Service
should only be performed by a qualified technician. Do
not use receptacles or cords that show signs of damage,
such as broken or cracked insulation.
4. Use a ground fault circuit interrupter (GFCI) in highly
conductive areas such as metal decking or steel work.
Extension cords with in-line GFCIs are recommended for
these operations to maximize safety.
5. If connecting the generator to a building’s electri-
cal system for standby power, you MUST consult a
qualified electrician and install a transfer switch. Such
connections must comply with local electrical laws and
codes. Failure to comply can create a back-feed, which
may result in serious injury or death to utility workers.
6. Never modify the generator in any way. Modifying
or using the machine for any other purpose for which it
is not designed may result in serious injuries, machine
damage and voiding of the warranty.
GENERATOR OPERATION
1. Only use the generator for its intended purposes.
Modifying or using the generator for operations for
which it was not designed may cause hazards and per-
sonal injury.
2. Do not touch bare wires or receptacles (outlets).
3. Do not exceed the wattage capacity of the generator
by plugging in more electrical devices than the unit
can handle. This could damage the generator and/or
connected electrical devices. Check the operating volt-
age and frequency requirements of all electrical devices
prior to plugging them into the generator.
Generator safety warnings continue on the next page.
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety
rules. Failure to follow the safety instructions may result in serious personal injury.
8
GENERATOR SAFETY WARNINGS
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules.
Failure to follow the safety instructions may result in serious personal injury.
4. Allow generator to run for several minutes before
connecting electrical devices. Do not start or stop en-
gine with electrical devices plugged in to the receptacles.
Failure to do so could damage the generator and/or con-
nected electrical devices.
5. Do not turn on electrical devices until after they are
connected to the generator.
6. Generators vibrate in normal use. During and after
the use of the generator, inspect both the generator as
well as extension and power supply cords for damage
resulting from vibration.
7. Do not touch hot parts. This generator produces heat
when running. Temperatures near exhaust can exceed
150ºF (65ºC). Allow generator to cool down after use be-
fore touching engine or areas of the generator that be-
come hot during use.
8. Turn off all connected electrical devices before stop-
ping the generator.
9. Always turn generator off before refueling. Allow
generator to cool for at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in tank.
10. Turn the engine switch to “OFF” position when the
engine is not running.
11. Empty fuel tank before storing or transporting the
generator. Do not store generator or gasoline near fur-
naces, water heaters, or any other appliances that pro-
duce heat or have automatic ignitions. Store the genera-
tor and fuel away from sparks, open flames, pilot lights,
heat and other sources of ignition.
12. Always wash hands after handling generator.
CAUTION: Misuse of this generator can damage it or
shorten its lifespan.
TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR: We recommend running your generator at least once a
month for 20 to 30 minutes. Start the generator according to the instructions and plug a small load in to make
sure the outlet is producing electricity. If you do not run it often, it will greatly shorten the generator’s lifespan
and void the warranty.
Tools & AccessoriesSpark Plug Tools
UNPACKING
With the help of a friend or trustworthy foe, such as one of your in-laws, carefully remove the generator from the
packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not discard
the packaging until everything is removed. Check the packing list below to make sure you have all of the parts and
accessories. If any part is missing or broken, please contact customer service at 1-847-429-9263 (M-F 8-5 CST),
or email [email protected].
PACKING LIST
UNPACKING & PACKING LIST
Components
9
Wrench
Handle
Screwdriver
Funnel
Generator
KNOW YOUR INVERTER GENERATOR
TOOL PURPOSE
Inverter Generators provide you with clean and quiet power, when and where you need it most. Refer to the fol-
lowing diagrams to become familiarized with all the parts and controls of your generator. The components will be
referred to later in the manual for assembly and operation instructions.
GENERATOR
10
Carrying Handle
Oil Access Cover
Fuel Cap
Control Panel
Ventilation Slots
Recoil Starter
Spark Plug Cover
Fuel Gauge
Vacuum Relief Valve
KNOW YOUR INVERTER GENERATOR
CONTROL PANEL
11
1. Indication Lights
• The ECO-MODE indicator light will light up when the
ECO-MODE is ON. The generator automatically enters
ECO-MODE upon startup.
• The OIL indicator light will light up when the oil level
is low.
• The OUTPUT / OVERLOAD indicator light will light up
GREEN to indicate that the generator has power and
RED to indicate that the generator has been overloaded.
2. Hour Meter
Displays the number of hours the generator has run
over its life.
3. Eco-Mode Button
Maximize fuel economy & run time. Press to toggle be-
tween ECO-MODE ON and OFF.
4. AC 120V Duplex NEMA 5-20R
Standard household outlets provide 120V 60Hz power.
5. AC Circuit Breaker, 20A
Press to reset the NEMA 5-20R outlets.
6. 5V USB Port
1A & 2.1A for charging various electronic devices.
7. Parallel Connection
Connect to share wattage between inverter generators.
8. Choke Lever
Use to start the engine.
9. Reset Button
Press to reset the circuit in case of overload.
10. Fuel Switch
Use to turn the fuel valve ON or OFF.
11. Manual Shutoff
Hold to manually shut OFF the generator.
12. Grounding Nut
Ground the generator to reduce the risk of electric shock.
3
4
5
2
1
8
6
7
10
11
12
9
Synthetic 5W-30
30W
10W-30
• 30W Engine Oil
Temperatures above 40°F
• 10W-30 Engine Oil
Temperatures between 0°F - 40°F
• Synthetic 5W-30 Engine Oil
All temperature ranges
ENGINE OIL RECOMMENDATIONS
Select good quality detergent oil bearing the American Petroleum Institute (API) service classifications
SJ, SL, or SM (synthetic oils may be used). Select the SAE viscosity grade of oil that matches the
expected operating temperature.
°F
°C
-20 0 20 32 40 60 80 100
40200
-20
-10
10
-30 30
12
GENERATOR PREPARATION
The following section describes the necessary steps to prepare the generator for use. If you are unsure about how
to perform any of the steps please call 1-847-429-9263 M-F 8-5 CST for customer service. Failure to perform these
steps properly can damage the generator or shorten its life.
STEP 1 - ADD / CHECK OIL
The generator is shipped without oil. User must add the proper amount of oil before operating the generator for the
first time. The oil capacity of the engine crankcase is 13.5 fl. oz. (400mL).
Fig. 1
To add oil, follow these steps:
1. Place the generator on a level surface. Make sure the engine is OFF
before adding or checking oil.
2. Remove the screws from the right side panel and remove the panel
to access the oil fill dipstick (Fig. 2).
3. Using an oil funnel or appropriate dispenser, slowly add oil into the
oil fill, being careful not to overfill the unit. Fill the crank case to the
upper fill line so you can visually see the oil coming halfway up the oil
fill threads (Fig. 3).
4. Reinstall the oil dipstick and firmly tighten it. Wipe clean any spilled
oil.
5. Reinstall the side panel and screws.
CAUTION! Keep the generator level! Tilting the generator to as-
sist in filling will cause oil to flow into the engine areas and will
cause damage.
Dipstick
Fig. 2
Fig. 3
Lower Fill Line
Upper Fill Line
13
For subsequent operation, the oil level should be checked before each use, or after every 8 hours of operation. The
generator is equipped with a low-oil sensor and will NOT start without a sufficient amount of oil.
To check oil level (before every subsequent start):
1. Place the generator on a level surface. Make sure the engine is OFF
before adding or checking oil.
2. Open the oil access cover. Remove and wipe the dipstick with a clean
rag.
3. Insert the dipstick into the oil fill without screwing it in. Remove the
dipstick to check the oil mark (Fig. 4).
If the oil mark covers less than one half of the dipstick, slowly add oil until
the oil mark reaches to the top of the dipstick (or when you can see the oil
coming halfway up the oil fill threads).
4. Wipe clean any oil leaks and firmly tighten the dipstick. Reinstall the oil
access cover.
OIL LEVEL SHUTDOWN
To protect the unit from damage, the generator is equipped with a low-oil-
pressure shutoff that will automatically stop the engine when the oil level
is too low. The low oil indication light will turn on to remind you that the
engine oil level is low and need to be refilled.
The oil level of the engine should be checked before each start to ensure
that the engine crankcase contains sufficient lubricant.
TIP: Your WEN generator is compatible with the WEN 55201 Magnetic Oil Dipstick (not included), available for
purchase at wenproducts.com. The dipstick’s industrial-strength magnetic tip will collect metal shavings from
your generator’s oil tank to help preserve the engine and extend your generator’s lifespan.
Upper Limit
Lower Limit
GENERATOR PREPARATION
Fig. 4
Fig. 5
Low Oil
Indicator
14
GENERATOR PREPARATION
WARNING! RISK OF EXPLOSION. HIGHLY FLAMMABLE: This generator may emit highly flammable and
explosive gasoline vapors, which can cause severe burns or even death, if ignited. A nearby open flame can lead
to explosion even if not directly in contact with gasoline.
• Do not operate near open flame, heat, or any other ignition source. Do not smoke near the generator.
• Always operate on a firm, level surface.
• Always turn generator off before refueling. Allow generator to cool for at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in tank.
• Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank. Allow for
expansion. Always check for spilled fuel before operating.
• If fuel spills, move the generator at least 30 feet away from the spill and wipe clean any spilled fuel before
starting the engine.
• Empty fuel tank before storing or transporting the generator.
STEP 2 - ADD / CHECK FUEL
ONLY use fresh (within 30 days from purchase), lead-free gasoline
with a minimum of 87 octane rating. The generator performs best
with ethanol-free gasoline. DO NOT use gasoline with over 10% etha-
nol.
The capacity of the fuel tank is 1 Gallon (4L). Do not mix oil with
gasoline.
To add gasoline, follow these steps:
1. Make sure the generator is shut OFF and on a level surface. Un-
screw the fuel cap (Fig. 6) and set it aside. The fuel cap may be tight
and hard to unscrew.
2. Slowly add unleaded gasoline to the fuel tank. Be careful not to
overfill.
NOTE: Do not fill the fuel tank to the very top. If you do so, gasoline
will expand and spill during use, even with the fuel cap in place.
3. Reinstall fuel cap and wipe clean any spilled gasoline with a dry
cloth.
IMPORTANT:
• Avoid getting dirt or water into the
fuel tank.
• Keep gasoline away from sparks,
open flames, pilot lights, heat, and
other sources of ignition.
• Gasoline can age in the tank and
make starting difficult. Never store
the generator for more than 2
months with fuel in the tank.
• Never use an oil/gasoline mixture.
• Never use old gasoline.
Fuel Cap
Fig. 6
After completing the above preparation, the generator is ready to be started.
STEP 3 - GROUND THE GENERATOR
To reduce the risk of electric shock and to maximize safety, the gen-
erator should be properly grounded.
Ground the generator by tightening the grounding nut (Fig. 7 - 1) on
the front control panel against a grounding wire. A generally accept-
able grounding wire is a No. 12 AWG (American Wire Gauge) strand-
ed copper wire.
This grounding wire should be connected at the other end to a copper,
brass, or steel-grounding rod that is driven into the earth. Wire and
grounding rods are not included with the generator.
NOTE: Grounding codes can vary by location. Contact a local electri-
cian to check the area codes.
HIGH ALTITUDE OPERATION ABOVE 3000 FEET
The fuel system on this generator may be affected by operation at high altitudes. Proper operation can be ensured by
installing an altitude kit at altitudes higher than 3000 feet above sea level. At elevations above 8000 feet, the engine
may experience a decrease in performance, even with the proper altitude kit. Operating this generator without said
kit may increase the engine’s emissions and decrease both fuel economy and performance.
This kit should be installed by a qualified mechanic. You can order the kit at wenproducts.com by searching part
56250i-HA36 for 3000 to 6000 feet above sea level or 56250i-HA68 for 6000 to 8000 feet above sea level. Refer to
the instructions included with your altitude kit for more information about installation.
CAUTION: Engines with the high-altitude kit installed operated at lower altitudes could cause severe engine
damage and affect emissions compliance. Be sure to UNINSTALL the high altitude kit when operating at alti-
tudes below 3000 feet.
GENERATOR PREPARATION
Fig. 7
WARNING! Failure to properly ground the generator increases your risk of electric shock.
WARNING! To prevent serious injury from fire, follow the kit installation procedures in a well-ventilated
area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before
proceeding. Do not smoke near the generator. Warranty will be void if adjustments are not made for high altitude
use.
15
1
CAUTION! Disconnect all electrical loads from the generator before attempting to start.
Before starting the generator, make sure you have read and performed the steps in the “Generator Preparation”
section of this manual. If you are unsure about how to perform any of the steps in this manual please call 1-847-
429-9263 M-F 8-5 CST for customer service.
To maximize safety, ALWAYS ground the generator before using it. See section “Ground the Generator”.
Use a ground fault circuit interrupter (GFCI) in highly conductive areas such as metal decking or steel work. GFCIs
are available in-line with some extension cords.
STARTING YOUR GENERATOR
Follow the instructions on the next page to start your generator.
DANGER! CARBON MONOXIDE
Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide (CO). This
is a poison gas you cannot see or smell. If you can smell the generator exhaust, you are breathing CO. But even
if you cannot smell the exhaust, you could be breathing CO.
NEVER use a generator inside homes, garages, crawl spaces, or other partially enclosed areas. Deadly levels
of carbon monoxide can build up in these areas. Using a fan or opening windows and doors does NOT supply
enough fresh air. ONLY use a generator outside and far away from windows, doors, and vents. These openings
can pull in generator exhaust.
Even if you use a generator correctly, CO may leak into the home. ALWAYS use a battery-powered or battery-
backup CO alarm in the home. If you start to feel sick, dizzy, or weak after the generator has been running, move
to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
WARNING! The exhaust from this product contains chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
WARNING! Do not operate generator near open flame or flammable materials This generator may emit
highly flammable and explosive gasoline vapors, which can cause severe burns or even death if ignited. A
nearby open flame can lead to explosion even if it isn’t directly in contact with gasoline. Do not smoke near the
generator.
WARNING! This generator produces powerful voltage, which can result in electrocution.
WARNING! Do not use in rainy or wet conditions. Do not touch bare wires or receptacles (outlets). Do not
allow children or non-qualified persons to operate.
WARNING! Generator should only be connected to electrical devices, either directly or with an extension
cord. NEVER connect to a building electrical system without a qualified electrician and connected to a transfer
switch as a separately derived system. Such connections must comply with local electrical laws and codes.
Failure to comply can create a back-feed, which may result in serious injury or death to utility workers.
16
STARTING YOUR GENERATOR
Fig. 8
Fig. 9
Fig. 10
2
1
1
17
BEFORE STARTING THE GENERATOR
1. Verify that the generator is outside on a dry, level surface. Allow at
least two feet of clearance on all sides of the generator.
2. To maximize safety, check that the generator is properly grounded.
See page 15, “GROUND THE GENERATOR.”
3. Check that there is a sufficient level of oil in the crankcase. Add oil
if necessary. Refer to page 12, “STEP 1 - ADD / CHECK OIL.”
4. Check that there is a sufficient level of fuel in the fuel tank. Add gas
if necessary. Refer to page 14, “STEP 2 - ADD / CHECK FUEL”.
5. Make sure all electrical devices are unplugged from the generator
during ignition. Otherwise it will be difficult for the engine to start.
STARTING THE GENERATOR
1. Turn the FUEL SWITCH (Fig. 8 - 1) to ON.
2. Open the vacuum relief valve (Fig. 9 - 1) on the fuel tank cap.
3. Pull the CHOKE (Fig. 8 - 2) out to the START position.
4. Place one hand on the generator to hold it in place, and pull on the
recoil starter handle (Fig. 10 - 1) slowly until a slight resistance is felt.
Then pull quickly to start the engine. Return the cord gently into the
machine. Never allow the cord to snap back.
5. Push the CHOKE in to the RUN position.
6. Allow the generator to run for several minutes before attempting to
connect any electrical devices. This allows the generator to stabilize
its speed and temperature.
NOTE: If you have repeated failed attempts to start the engine, please
consult the troubelshooting guide. If problems persist, please call
1-847-429-9263 M-F 8-5 CST.
1
USING YOUR GENERATOR
CALCULATING THE WATTAGE OF YOUR DEVICE(S)
Connect electrical devices running on AC current according to their wattage requirements. Calculate the total run-
ning wattage and starting wattage of the device(s) you wish to connect, and MAKE SURE that they are within the
capacity of your generator and the capacity of each individual outlet.
Generator
Wattage
Capacity
GENERATOR RUNNING (RATED) WATTS GENERATOR STARTING (SURGE) WATTS
1900W 2500W
What this means:
The generator can produce a maximum of
1900W on a continuous basis to supply on-
going power to your electronic devices.
NOTE: Also check the rated amperage for
each outlet and make sure not to overload
the individual outlets.
What this means:
Some devices such as box fans require short
bursts of extra power in addition to the rated
wattage listed by the device to start their mo-
tors.
The generator can produce a maximum watt-
age of 2500W for a short period of time
(seconds) to cover the extra starting power
required by your electronic devices.
Electronic
Device
Wattage
Calculation
Find the wattage information of each device you plan to connect. The information should be
listed on the device or in its instruction manual, or you may refer to page Table 2.
The wattage can be calculated using this equation: Watts = Volts x Amperes
To calculate the total running watts of your
devices:
+ Add up the running wattages of all the
device(s) you plan to connect.
= The total running (rated) wattage.
This wattage should NOT exceed the run-
ning wattage of 1900W.
It is recommended to maintain a load at or
below 1710W (90% of the rated output) to
ensure steady voltage output and to prolong
the generator’s lifespan.
To calculate the total starting watts of your
devices:
+ Add up the total running wattage of all the
device(s) you plan to connect.
+ Add the single highest ADDITIONAL start-
ing wattage out of the device(s) you plan to
connect.
= The total starting (surge) wattage.
This wattage should NOT exceed the starting
wattage of 2500W.
If any of either of the total calculated running watts or starting watts is higher than the capac-
ity of your generator, adjust the load until both wattage requirements are met. Otherwise you
will overload the generator, and cause damage to the engine and your electrical device(s).
Table 1 - How to Calculated Wattages
18
CALCULATING THE WATTAGE OF YOUR DEVICE(S) - CONTINUED
The chart below serves as a reference for the estimated wattage requirements of common electrical devices. How-
ever, do not solely rely on this chart - all electronics and appliances are built differently. Always check the wattage
listed on the electrical device before consulting this chart.
Tool or Appliance Rated (Running) Watts Surge (Starting) Watts
Electric Water Heater (40 Gal) 4000 0
Hot Plate 2500 0
Saw - Radial Arm 2000 2000
Electric Stove (Each Element) 1500-2800 0
Saw - Circular 1500 1500
Air Compressor (1 HP) 1500 3000
Window Air Conditioner 1200 1800
Saw - Miter 1200 1200
Microwave 1000 0
Well Water Pump 1000 1000
Sump Pump 800 1200
Refrigerator Freezer 800 1200
Furnace Blower 800 1300
Computer 800 0
Electric Drill 600 900
Television 500 0
Deep Freezer 500 500
Garage Door Opener 480 0
Stereo 400 0
Box Fan 300 600
Clock Radio 300 0
Security System 180 0
DVD Player / VCR 100 0
Common Light Bulb 75 0
Table 2 - Estimated Wattages of Common Electrical Appliances
NOTE: Become familiar with the functions and capacity of each component on the control panel before con-
necting electrical devices. See page 11 for more information about the components of the control panel. Do not
overload generator or individual panel receptacles. Do not connect 50Hz or 3-phase loads to the generator.
USING YOUR GENERATOR
19
CONNECTING ELECTRICAL DEVICES
When the rated wattage requirement of each electrical device has been determined, add these numbers to find the
total rated wattage needed. If this number exceeds the rated wattage (1900W) of the generator, DO NOT connect all
these devices. Select a combination of electrical devices with a total rated wattage lower than or equal to the rated
wattage of the generator.
CAUTION! Become familiar with the markings on the control panel before connecting electrical devices. Do
not connect 50Hz loads to the generator.
1. Before connecting electrical devices, allow the generator to run for a few minutes to stabilize the speed and volt-
age output.
2. Make sure that all devices are turned OFF. Start plugging in each electric device, from the highest wattage to the
lowest. Check the output indicator light (green) to ensure the generator is producing power.
3. Do not overload the generator or individual panel receptacles. If an overload occurs, the overload indicator light
(red) will activate. If it is flashing, turn OFF and unplug one load. If it is solid (not flashing), the generator will cut off
power to protect itself. Unplug all electrical devices and then press the reset button to reset the entire circuit. Check
the total wattage of the devices and reduce the load if it exceeds the capacity of the generator. Then, plug the loads
back in one by one.
NOTE: If the reset button or circuit breaker does not reset, wait several minutes and try again. If problem still per-
sists, please call 1-847-429-9263 M-F 8-5 CST.
USING YOUR GENERATOR
20
ECO-MODE BUTTON
This generator is equipped with an Eco-Mode Idle Control Button. Engaging this button allows the system to regu-
late the engine speed and automatically adjust its fuel consumption to match the required load. When the electrical
load changes, the generator engine will automatically speed up and slow down as needed. This reduces fuel con-
sumption and noise levels, while extending runtime and engine’s lifespan.
Keep this switch engaged ONLY when the power load requirement is LESS THAN 1685W (75% of the rated watts).
Do not engage the Eco-Mode Switch when the total load is more than 1685W. The generator engine must run at full
speed to supply power for anything over 1685W.
NOTE: The generator automatically turns Eco-Mode ON when it starts up.
PARALLEL OPERATION
The parallel connection ports allow you to connect two WEN generators to increase the total available electrical
power. The WEN Parallel Connection Kit can be purchased from wenproducts.com. Follow the instructions in-
cluded with your parallel connection kit for proper installation and operation.
IN CASE OF OVERLOAD
If your generator becomes overloaded from too much drawn wattage, the overload indicator (red) on the control
panel will light up, and the overload reset button on your control panel may activate and cut off the output. When
an overload occurs, reduce the load by turning off and unplugging your electronic device(s), then press the reset
button to reset your generator. If no power is produced after resetting, restart your generator.
• Slightly Over Rated Wattage: Overload light will flash to indicate overload
• Significantly Over Rated Wattage: Overload light will turn on for several seconds, then output will be cut off.
ENGINE BREAK-IN PROCEDURE
The procedure below should be followed when you receive your generator in order to prolong the engine’s service
life. This procedure helps to seat the piston rings properly in the cylinder, and will reduce overall wear on the engine.
For the first 8 hours of operation, vary the load, but keep it at or below 50% of the generator’s rated wattage, if
possible. If your generator is equipped with an Eco-mode switch (only applicable for certain inverter generators),
engage Eco-mode periodically during the first 8 hours. After the first 8 hours, change the oil, then change it again af-
ter the first 25 hours. You may run the generator at full load after the 8-hour oil change. Refer to the Recommended
Maintenance Schedule in Table 4 for the full maintenance schedule.
USING YOUR GENERATOR
21
Table 3 - Power Cord Requirement Guide
SOME NOTES ABOUT POWER CORDS
Long or thin cords can drain the power provided to an electrical device by the generator. When using such cords,
allow for a slightly higher rated wattage requirement by the electrical device.
*NR = Not Recommended
WARNING! Generator should only be connected to electrical devices, either directly or with an extension
cord. NEVER CONNECT TO A BUILDING ELECTRICAL SYSTEM without a qualified electrician and connected to
a transfer switch as a separately derived system. Such connections must comply with local electrical laws and
codes. Failure to comply can create a back-feed, which may result in serious injury or death to utility workers.
NOTE: For power outages, permanently installed, stationary generators are better suited for providing backup
power to your home. Even a properly connected portable generator can become overloaded. This may result in
overheating or stressing the machine’s components, possibly leading to generator failure.
USING YOUR GENERATOR
Device Requirements Max. Cord Length (ft) by Wire Gauge
Amps
Watts
(120V)
Watts
(240V)
#8 Wire #10 Wire #12 Wire #14 Wire #16 Wire
2.5 300 600 NR NR NR 375 250
5 600 1200 NR NR 300 200 125
7.5 900 1800 NR 350 200 125 100
10 1200 2400 NR 250 150 100 50
15 1800 3600 NR 150 100 65 NR
20 2400 4800 175 125 75 50 NR
25 3000 6000 150 100 60 NR NR
30 3600 7200 125 65 NR NR NR
40 4800 9600 90 NR NR NR NR
22
23
1
SHUTTING OFF YOUR GENERATOR
CAUTION! Unplugging running devices can cause damage to the generator. Never stop the engine with elec-
trical devices connected and running.
OPTION 1: AUTOMATIC FUEL SHUTOFF
1. Turn off all electrical devices and then unplug the devices from the
generator.
2. Allow the generator to run at no load for a few minutes to stabilize
the internal temperatures.
3. Turn the FUEL SWITCH (Fig. 12 - 1) to the OFF position.
4. Close the vacuum relief valve (Fig. 13 - 1) on top of the fuel cap by
rotating it counterclockwise to the OFF position.
4. The engine will continue to run until the majority of the fuel in the
carburetor is consumed, which takes a few minutes. It will then shut
off automatically. This feature helps to prevent the carburetor from
being clogged by stale fuel, extending your generator’s lifespan.
OPTION 2: AUTOMATIC FUEL SHUTOFF
In case you are in a hurry and do not want to wait for the generator
to automatically shut down, the manual shutoff feature is available.
However, this method will leave stagnant fuel in the carburetor, pos-
sibly causing blockages, a shortened lifespan, and other maintenance
issues. If this approach is frequently taken, make sure to drain your
carburetor before any long storage periods.
1. Turn off all electrical devices prior to unplugging them from the
generator. Unplugging running devices can cause damage to the gen-
erator.
2. Turn the MANUAL SHUTOFF switch (Fig. 12 - 2) to the OFF posi-
tion. Hold the switch in the OFF position for about six seconds until
the engine shuts off.
WARNING! Allow the generator to cool for several minutes
before touching areas that become hot during use.
CAUTION! Allowing gasoline to sit in the fuel tank for long
periods of time can make it difficult to start the generator in the fu-
ture. Never store the generator for extended periods of time (over
2 months) with fuel in the fuel tank. Refer to “Storing the Genera-
tor”.
Fig. 11
1
Fig. 12
2
24
Proper routine maintenance of the generator will help prolong the life of the machine. Please perform maintenance
checks and operations according to the schedule in Table 4.
CAUTION! Never perform maintenance operations while the generator is running. Before maintaining or
servicing the generator, turn OFF the generator, disconnect all devices and allow the generator to cool down.
If there are any questions about the maintenance procedures listed in this manual, please call 1-847-429-9263 M-F
8-5 CST or email [email protected].
Recommended
Maintenance Schedule
Every 8
Hours or
Daily
Every 25
Hours
Every 3
Months or
50 Hours
Every 6
Months or
100 Hours
Before
Storage
As
Necessary
Engine Oil
Check Level x
Replace x* x
Air Filter
Check x*
Clean x*
Spark Plug
Check/Clean/
Regap
x
Change x x
Fuel
Check Level x
Drain x x
Carburetor Drain x x
Spark
Arrestor
Check/Clean x
Table 4 - Recommended Maintenance Schedule* Clean/change more often under dusty conditions
or operating under heavy load.
IMPORTANT GENERATOR MAINTENANCE TIPS:
• Drain your carburetor after each use and before storage to prevent it from clogging.
• Do not store the generator with fuel inside the tank for more than 2 months - the fuel will go bad.
• Run the generator for at least 15 minutes every month to maximize its lifespan.
CLEANING THE GENERATOR
Keep the generator clean to prevent improper operation or machine damage from dirt and debris. Inspect all venti-
lation openings on the generator. These openings must be kept clean and unobstructed. If the generator becomes
dirty, use a damp cloth to wipe exterior surfaces. Use a soft bristle brush to loosen dirt and oil and use a vacuum to
pick up loose dirt. Use low pressure air (not to exceed 25 PSI) to blow away dirt.
CAUTION! Never clean the generator when it is running! Never clean with a bucket of water or a hose. Water
can get inside the working parts of the generator and cause corrosion or a short circuit.
NOTE: Failure to properly maintain the generator will void the warranty.
MAINTENANCE
25
2. Pull down and out on the release tab at the top of the oil access
cover. Then unscrew the oil dipstick from the engine.
3. Insert the dipstick into the oil fill opening without screwing in. Re-
move the dipstick to check the oil mark (Fig. 14). Add oil if the oil mark
covers less than one half of the dipstick.
4. Using a funnel or appropriate dispenser, slowly add more oil. Re-
peat step 2 until the oil mark reaches the top of the dipstick (you can
see oil coming up the threads of the oil fill). Do not over fill.
5. Reinstall dipstick and wipe clean any spilled oil with a rag. Reinstall
the oil access cover.
6. Reinstall the oil access cover.
TIP: Your WEN generator is compatible with the WEN 55201 Magnetic Oil Dipstick (not included), available
for purchase at wenproducts.com. The dipstick’s industrial-strength magnetic tip will collect metal shavings
from your generator’s oil tank to help preserve the engine and extend your generator’s lifespan.
CLEANING THE GENERATOR
Keep the generator clean to prevent improper operation or machine damage from dirt and debris. Inspect all venti-
lation openings on the generator. These openings must be kept clean and unobstructed.
If the generator becomes dirty, use a damp cloth to wipe exterior surfaces. Use a soft bristle brush to loosen dirt
and oil and use a vacuum to pick up loose dirt. Use low pressure air (not to exceed 25 PSI) to blow away dirt.
CHECKING/ADDING OIL
Check the oil level before each use and every 8 hours of operation (refer to Table 4).
The oil capacity of the generator engine is 13.5 fl. oz. (400mL). Add oil when the oil level is low. For proper type
and weight of oil refer to “ADD OIL” portion of the “GENERATOR PREPARATION” section. This is a critical step for
proper engine starting. The generator is equipped with an automatic shutoff to protect it from running on low oil.
To check the oil level and add oil:
1. Make sure the generator is on a level surface. Do not tilt the generator, as oil will flow into engine areas and cause
damage. Keep generator level!
MAINTENANCE
Upper Limit
Lower Limit
Fig. 13
WARNING! Never clean generator when it is running! Never clean with a bucket of water or a hose. Water
can get inside working parts of the generator and cause corrosion or a short circuit.
26
1. Place generator on an elevated platform such as table or desk.
2. Using a Phillips-head screwdriver, remove the two screws on the
right side panel as shown in Fig. 15.
4. Locate the carburetor (Fig. 16 - 1) and the clear drain tube (Fig.
16 - 2).
5. Prepare an approved gasoline-storage container and direct the end
of the drain tube into the container.
6. Open up the carburetor drain screw (Fig. 16 - 3) with a Phillips-
head screwdriver and drain out any gasoline that has built up inside
the carburetor through the drain tube into the approved gasoline-stor-
age container.
7. Once the fuel has drained, tighten the drain screw with the screw-
driver.
NOTE: Make sure to drain your carburetor before storing the genera-
tor for long periods of time.
8. Reinstall the side panel and screws.
DRAINING THE CARBURETOR
We recommended draining the carburetor after every use (not necessary if the generator is shut off using the
“FUEL OFF” option), and before storing the generator. Draining the carburetor can prevent the fuel from clogging
up the carburetor and preventing the generator from starting.
MAINTENANCE
Fig. 14
Fig. 15
3
1
2
27
MAINTENANCE
AIR FILTER MAINTENANCE
Check every 50 hours of operation (refer to Table 4 - Recommended Maintenance Schedule).
Routine maintenance of the air filter helps maintain proper airflow to the carburetor. Occasionally check that the
air cleaner is free of excessive dirt.
To inspect and clean the air filter:
1. Using a Phillips-head screwdriver, remove the two screws on the
right side panel as shown in Fig. 15.
2. Take the cover off of the air filter (Fig. 17 - 1) using the two tabs on
both sides. Remove the air filter element. Wipe excessive oil and any
dirt from inside of the air filter casing.
3. Check and clean the foam air filter element. Good elements can be
washed in soapy water, dried and reused. A small amount of oil in
the element is normal and necessary for the engine to work properly.
Fig. 16
WARNING! Running the engine with a dirty, damaged or missing air filter element can result in danger to the
operator and cause the engine to wear out prematurely.
If the air filter element has been damaged, replace it with a new one. Replacement air filters can be ordered from
wenproducts.com by searching part no. 56250i-0504.
4. Reinstall the air filter element, air filter cover and side panel.
1
28
DRAINING/CHANGING OIL
Change the oil according to the Recommended Maintenance
Schedule in Table 4.
Change the oil MORE OFTEN if operating under heavy load or high
ambient temperatures. It is also necessary to drain the oil from the
crankcase if it has become contaminated with water or dirt. Changing
the oil when the engine is warm allows for complete drainage.
1. Close the gas cap.
2. Place the generator on an elevated platform such as a table or
workbench. Prepare an oil pan to catch the oil as it drains.
NOTE: To avoid possible fuel spills from the carburetor bowl, drain
the carburetor before draining oil.
3. Using a Phillips-head screwdriver, remove the two screws on the
right side panel as shown in Fig. 15.
4. Remove the dipstick (Fig. 18 - 1) and tilt the generator towards you
and allow the oil to drain from the engine completely.
NOTE: Never dispose of used motor oil in the trash or down a drain.
Please call a local recycling center or auto garage to arrange proper
oil disposal.
5. Using a funnel or appropriate dispenser, add 13.5 fl. oz. (400mL)
of clean engine oil until you can see oil coming up the threads of the
oil fill. Do not over fill.
6. Reinstall the oil dipstick and tighten it securely. Wipe clean any oil
spillage and reinstall the oil access cover.
MAINTENANCE
Fig. 17
1
29
MAINTENANCE
SPARK PLUG MAINTENANCE
Refer to Recommended Maintenance Schedule in Table 4 for maintaining the spark plug.
The spark plug is important for proper engine operation. Check the spark plug regularly to maintain proper engine
operation. A good spark plug should be intact, free of deposits, and properly gapped.
To inspect or replace the spark plug:
1. Remove the spark plug access cover (Fig. 29 - 1).
2. Gently pull on the spark plug boot (Fig. 20 - 1) to remove it. Be
careful not to tear any insulation or wire.
3. Insert the included spark plug wrench (Fig. 21) through the access
cover hole to unscrew and then carefully remove the spark plug from
the engine.
TIP: There is limited space for the wrench to turn. Use both rows of
holes in the spark plug wrench to gain leverage to loosen the plug.
4. Visually inspect the spark plug. If it is cracked or chipped, or if the
electrodes are worn or burned, discard it and replace
with a new spark plug.
We recommend replacing with a NGK CR5HS/Torch A5RTC spark
plug (part no. 56200-0806B), available for purchase at
wenproducts.com.
5. If re-using the spark plug, use a wire brush to clean any dirt from
around the spark plug base, then re-gap the spark plug.
6. Measure the plug gap with a spark plug gap gauge. The gap should
be 0.6 - 0.8mm (0.024 - 0.031 in.) (Fig. 22). Carefully adjust the gap
if necessary.
7. Screw the spark plug back into the spark plug hole using the spark
plug wrench. Do not over-tighten spark plug. Recommended tight-
ening of spark plug is ½ to ¾ of a turn (9.0 - 11.0 ft-lb torque/12-15
Nm.) after spark plug gasket contacts spark plug hole.
8. Reinstall the spark plug boot, spark plug rubber cover, and service
panel.
Fig. 20
Fig. 21
Spark Plug
Wrench
Spark Plug
Handle
0.6 mm - 0.8 mm
1
Fig. 18
Fig. 19
1
30
CAUTION: Store emptied gasoline in a suitable place. Never
store fuel for more than 2 months.
SPARK ARRESTOR MAINTENANCE
Inspect and clean the spark arrestor every 100 hours of operation.
The spark arrester is located outside the muffler, which gets very hot during operation. Allow the engine to cool
completely before servicing the spark arrester. To inspect and clean the spark arrester:
1. Remove the two bolts that secure the spark arrestor (Fig. 23 - 1)
to the muffler.
2. Remove the spark arrestor screen.
3. Carefully clean and remove the carbon deposits from the spark
arrestor screen with a wire brush. Replace the spark arrestor if it is
damaged (replacement spark arrestors can be purchased from wen-
products.com by searching the part no. 56250i-0802.1).
4. Reinstall the spark arrestor in the muffler and secure it in place with
the screw.
DRAINING THE FUEL TANK
Drain and clean the fuel tank each year, or before storing the gen-
erator for longer than two months.
To drain the fuel tank and carburetor:
1. Using a Phillips-head screwdriver, remove the two screws on the
right side panel as shown in Fig. 15.
2. Locate the carburetor (Fig. 16 - 1) and the transparent drain tube
(Fig. 16 - 2) from the carburetor that extends down through the bot-
tom of the generator.
3. Prepare an approved gasoline-storage container and direct the end
of the transparent tube into the container.
4. Use the screwdriver to loosen the drain screw (Fig. 16 - 3).
5. Remove the fuel cap and turn the FUEL SWITCH to the ON position.
NOTE: The draining process may take a few hours, depending on the
amount of fuel in your gas tank.
6. Once fuel is completely drained, reinstall the fuel cap and turn the
FUEL SWITCH to the OFF position. Tighten the drain screw with the
screwdriver and reinstall the service panel.
6. Store emptied gasoline in a suitable place. DO NOT store flam-
mable materials near the gasoline.
MAINTENANCE
Fig. 22
1
31
TRANSPORTATION & STORAGE
TRANSPORTING THE GENERATOR
To prevent fuel spillage when transporting, be sure to perform the following:
1. Tighten the fuel cap and turn the vacuum relief valve to “OFF”.
2. Set the engine switch to “OFF”.
3. Drain the fuel tank if possible (see “DRAINING THE FUEL TANK”).
4. Keep the generator upright. Never place the generator on its side or upside down - doing so will make it difficult
to start.
STORING THE GENERATOR
Shut off the generator and allow the unit to cool to room temperature before storing it. NEVER place any type of
storage cover on the generator while it is still hot. Do not obstruct any ventilation openings.
Follow the procedures below for properly storing your generator. We highly recommend running your generator
once a month for 15 to 30 minutes. Plug in a small load in to ensure there is proper power
output.
For Short Periods (30 to 60 Days):
• Drain the carburetor. Refer to, “Draining the Carburetor.”
• Add fuel stabilizer: Follow the suggested portions and
instructions of your preferred stabilizer. Run the engine for
15 to 20 minutes, allowing the fuel stabilizer to mix with the
gasoline and circulate through the carburetor, and then top
off with fuel. Filling the fuel tank full reduces the amount of
air in the tank and helps fight deterioration of fuel.
For Extended Periods (Over 60 Days):
• Drain the fuel tank and carburetor. Refer
to, “Draining the Fuel Tank”. Never store
generator with fuel in the tank for more
than two months.
• Change the engine oil. Refer to,
“Changing Oil”.
PRODUCT DISPOSAL
Do not dispose of a used generator or parts with your household waste. This product contains electrical or elec-
tronic components that should be recycled. Please take this product to your local recycling facility for responsible
disposal to minimize its environmental impact.
Do not dispose of used oil or fuel in the trash or down a drain. Please contact your local recycling center or auto
garage to arrange proper oil/fuel disposal.
Please recycle the packaging and electronic components where facilities exist. Please contact your
local auto garage or recycling facility to properly dispose of oil / fuel.
WARNING! Avoid direct sunlight inside a vehicle. If generator is left in an enclosed vehicle for many hours,
the high temp could cause the fuel to vaporize and result in a possible explosion.
WARNING! Store the generator upright in a cool and dry location, away from sources of heat, open flames,
sparks or pilot lights.
32
PROBLEM POSSIBLE CAUSE SOLUTION
Engine will not
start.
1. Fuel switch is set to OFF (0). 1. Turn fuel switch to ON.
2. Oil is low. 2. Add oil.
3. Engine is out of fuel. 3. Add fuel.
4. Engine is filled with contaminated
or old fuel.
4. Drain fuel in the tank and carburetor. Replace with fresh fuel.
5. Spark plug is dirty or broken. 5. Clean or replace spark plug.
6. Carburetor is air locked.
6. Turn the engine switch to OFF. Remove bolt from bottom of the
carburetor. Take off the carburetor bowl to allow it to reset. Replace
carburetor bowl and reinstall the bolt.
7. Ghost in the generator. 7. Persuade ghost to leave. Consult Bill Murray if needed.
Engine runs but there
is no
electrical output.
1. Circuit breaker has been tripped
due to overload.
1. Turn off and unplug all electrical devices. Wait 5 minutes, then press
the circuit breaker to reset. Check the total wattage of the devices and
reduce the load if it exceeds the capacity of the generator. Then plug
the loads back in one by one.
2. Bad connecting cords/wires.
2. Check the power cords and extension cords. Do not use if any cord
is damaged. Replace damaged cords immediately.
3. Bad electrical device connected to
the generator.
3. Try connecting a different device.
Generator runs but
does not support
all electrical
devices connected.
1. Generator is overloaded.
1. Turn off and unplug all electrical devices. Wait 5 minutes, then
press the circuit breaker to reset. Reduce load as necessary, then plug
devices back in one by one.
2. Short circuit in one of the devices. 2. Try disconnecting any faulty or short-circuited electrical loads.
3. Air filter is dirty. 3. Clean or replace the air filter element.
4. Generator is in Eco-Mode and the
load is too high.
4. Reduce the load or turn Eco-Mode off.
Engine is
“Hunting” during
Operation
(Engine RPM is
fluctuating).
1. The fuel isn’t running through the
fuel valve.
2. The air filter is clogged.
3. The muffler or spark arrester is
blocked
4. There is gunk in the carbure-
tor preventing a consistent fuel/air
mixture.
Turn off the generator and wait for it to cool down. Perform the follow-
ing steps:
1. Check if the fuel is properly and consistently going through the fuel
valve.
2. Check for any blockage in the air filter. Check and clean the air filter
as necessary.
3. Check if the spark arrester is blocked. Clean with metal brush as
necessary.
4. Use “gunk remover” spray on the carburetor jets.
TROUBLESHOOTING GUIDE
WARNING! Stop using the generator immediately if any of the following problems occur or risk serious per-
sonal injury. If you have any questions, please contact our customer service at 1-847-429-9263, M-F 8-5 CST or
email us at [email protected].
33
WIRING DIAGRAM
Hour Meter
Engine Shutdown Switch
ECO OUTPUT /
OVERLOAD
OIL
PPTC Fuse, 5A
Ignition Coil
Trigger
Oil Sensor
34
No. Part No. Description Qty.
1 56250i-0101 Bolt, M6x22 7
2 56250i-0102 Crankcase Cover 1
3 56250i-0103
Crankcase Cover
Gasket
1
4 56200-0803
Position Pin -
Type A
2
5 56250i-0105 Engine Oil Sensor 1
6 56200-0629 Bolt, M6x14 2
7 56250i-0107 Oil Seal 1
8 56250i-0108
Crankcase Subas-
sembly.
1
9 56200-0903
Deep Groove Ball
Bearing - P53 6204
1
10 56250i-0110
Oil Dipstick
Assembly
1
11 56250i-0111 Bolt, M6x10 1
EXPLODED VIEW & PARTS LIST
NOTE: Replacement parts can be purchased from wenproducts.com, or by calling our customer service at 1-847-
429-9263, M-F 8-5 CST. Parts and accessories that wear down over the course of normal use are not covered by
the three-year warranty. Not all parts may be available for purchase.
FIG. 1 - CRANKCASE
No. Part No. Description Qty.
1 56310i-0209 Bolt, M6x16 4
2 56200-0814 Breather Tube 1
3 56250i-0203 Breather Plate 1
4 56250i-0204
Breather Plate
Gasket
1
5 56200-0813
Phillips Pan Head
Screw, M3x8
3
6 56250i-0206
Cylinder Head
Cover Gasket
1
7 56200-0807
Cylinder Head Bolt,
M6x50
4
8 56250i-0208
Cylinder Head
Subassembly
1
9 56250i-0209
Cylinder Head
Gasket
1
10 56200-0806B
Spark Plug, Torch
A5RTC
(NGK CR5HS)
1
11 56200-0803
Position Pin -
Type A
2
12 56250i-0212
Cylinder Head Cover
Assembly
1
FIG. 2 - CYLINDER HEAD AND COVER
35
No. Part No. Description Qty.
1 56250i-0301
Crankshaft
Assembly
1
2 56250i-0302 Connecting Rod 1
3 56200-1004 Piston Pin Clip 2
4 56250i-0304 Piston Ring Set 1
5 56200-1005 Piston Pin 1
6 56200-1003 Piston 1
EXPLODED VIEW & PARTS LIST
FIG. 3 - CRANKSHAFT AND
CONNECTING ROD
FIG. 4 - CAMSHAFT AND VALVES
No. Part No. Description Qty.
1 56250i-0401 Camshaft Assembly 1
2 56200-1103 Valve Tappet 2
3 56250i-0403 Valves Set 1
4 56250i-0404
Valve Rocker
Subassembly
2
5 56450i-0603 Seal Guide 1
6 56250i-0406 Valve Spring 2
7 56380i-0605 Valve Spring Seat 2
8 56310i-0606 Valve Lock Clamp 4
9 56200-1114
Valve Lifter
Subassembly
2
10 56200-1112 Valve Rocker Shaft 1
11 56250i-0411
Valve Outer Spring
Retainer
1
36
No. Part No. Description Qty.
1 56310i-0209 Bolt, M6x16 3
2 56250i-0502
Recoil Starter
Assembly
1
3 56250i-0503 Shroud 1
4 56250i-0504 Air Filter Element 1
5 56380i-0313 Bolt, M6x12 2
6 56250i-0506
Carburetor Intake
Duct Assembly
1
7 56200-0506 Nut, M6 2
8 56250i-0508 Right Shroud 1
9 56250i-0509 Left Shroud 1
10 56250i-0510 Ignition Coil 1
11 56250i-0511 Clip 5
12 56250i-0512
Self-tapping Screw,
ST4.8x19
2
13 56250i-0513
Air Filter Housing
Cover
1
14 56250i-0514
Recoil Starter Guide
Subassembly
1
15 56250i-0515
Recoil Starter
Handle
1
16 56200-1202
Flanged Hex Bolt,
M6x20
3
17 56250i-0517
Flanged Hex Bolt,
M6x12
2
FIG. 5 - RECOIL STARTER
EXPLODED VIEW & PARTS LIST
No. Part No. Description Qty.
1 56250i-0601 Stud Bolt, M6x92 2
2 56250i-0602
Carburetor Insulator
Gasket
1
3 56250i-0603
Carburetor Insulator
Plate
1
4 56250i-0604 Carburetor Gasket 1
5 56250i-0605
Carburetor
Assembly
1
6 56250i-0606 Air Filter Gasket 1
7 56380i-1435 Hose Clamp 1
8 56250i-0608 Fuel Line 1
N.P. 56250i-HA36
High-Altitude Kit,
3000 - 6000 ft
1
N.P. 56250i-HA68
High-Altitude Kit,
6000 - 8000 ft
1
FIG. 6 - CARBURETOR ASSEMBLY
37
EXPLODED VIEW & PARTS LIST
No. Part No. Description Qty.
1 56200-0502
Flanged Hex Bolt,
M6x14
2
2 56250i-0702 Impeller Gasket 1
3 56200-1601
Flywheel Nut,
M12-1.25
1
4 56250i-0704 Impeller 1
5 56250i-0705 Rotor 1
6 56250i-0706 Stator 1
7 56380i-0313
Flanged Hex Bolt,
M6x12
1
8 56250i-0708 Wiring Clamp 1
9 56250i-0709 Trigger 1
10 56250i-0710
Flanged Hex Bolt,
M5x16
2
11 56200-0701
Flanged Hex Bolt,
M6x30
2
FIG. 7 - ALTERNATOR
No. Part No. Description Qty.
1 56250i-0801
Flanged Hex Nut,
M6
2
2 56250i-0802 Muffler Assembly 1
N.P.
56250i-
0802.1
Spark Arrestor 1
3 56250i-0803 Stud Bolt, M6x75 2
4 56200-1506 Muffler Gasket 1
5 56250i-0805
Flanged Hex Bolt,
M6x60
1
FIG. 8 - MUFFLER
No. Part No. Description Qty.
1 56250i-0901 Fuel Tank Cap 1
2 56250i-0902 Fuel Tank Nut, M54 1
3 56250i-0903 Fuel Tank 1
4 56200-0207 Fuel Line Filter 1
5 56250i-0905 Hose Clamp 1
6 56250i-0906 Fuel Line 1
7 56200-0206 Bushing 2
8 56250i-0908 Fuel Filter 1
9 56250i-0909
Sleeve, Filling Oil
Hole Rubber
1
FIG. 9 - FUEL TANK
38
EXPLODED VIEW & PARTS LIST
No. Part No. Description Qty.
1 56250i-1001
Flanged Hex Bolt,
M6x14
1
2 56250i-1002 Hose Clamp 2
3 56250i-1003 Fuel Valve 1
4 56250i-1004
Control Panel
Wiring Harness
1
5 56250i-1005 Knob 1
6 56250i-1006 Choke Cable 1
7 56200-0514
Phillips Pan Head
Screw, M4x16
1
8 56250i-1008 Panel Seat 1
9 56250i-1009
Hex Step Bolt,
M5x14
6
10
56250i-
1010ASM
Control Panel
Subassembly
1
11 56250i-1011 Hour Meter 1
12 DF250iX-1143
Indicator
Mounting Base
3
FIG. 10 - CONTROL PANEL
No. Part No. Description Qty.
13 56250i-1013 Multimeter 1
14 56380i-1432 Rectifier 1
15 DF250iX-1124 USB Outlet 1
16 56380i-1431
Manual Shutdown
Switch
1
17 56250i-1017 Grounding Lug 1
18 56380i-1423
Parallel Port,
Black
1
19 56380i-1424 Parallel Port, Red 1
20 56250i-1020 AC Breaker, 20A 1
21 56250i-1021
Phillips Pan Head
Bolt, M5x12
4
22 56250i-1022 Grounding Wire 1
23 56250i-1023 Receptacle Cover 1
24 56380i-1421
NEMA 5-20R
Duplex AC
Receptacle
1
39
EXPLODED VIEW & PARTS LIST
No. Part No. Description Qty.
1 56250i-1101 Left Side Panel 1
2 56250i-1102 Left Housing 1
3 56250i-1103 Right Housing 1
4 56250i-1104 Right Side Panel 1
5 56250i-1105
Phillips Captive
Pan-Head Screw,
M5x4
4
6 56200-0302
Phillips Pan Head
Screw, Spring
Washer And Flat
Washer Assembly,
M5x12
2
7 56380I-1607
Hex Step Bolt,
M6x20
6
8 56200-0408
Square Nut -
Grade C
6
FIG. 11 - HOUSING
No. Part No. Description Qty.
9 56250i-1109 Engine Cushion 1 1
10 56200-0515 Fuel Line Bushing 4
11 56250i-1111 Clip Nut, M6 8
12 56250i-1112
Hex Step Bolt,
M5x14
3
13 56250i-1113 Clip Nut, M5 2
14 56250i-1114 Inverter 1
15 56250i-1115
Hex Step Bolt,
M5x14
2
16 56250i-1116
Phillips Pan Head
Screw, M6x5
1
17 56200-0414
Spark Plug Access
Cover
1
18 56200-0412 Rubber Cover 1
19 56200-0413 Fuel Gauge Cover 1
No. Part No. Description Qty.
1 56200-0507
Engine Frame
Cushion M6x10.5
4
2 56250i-1202
Flanged Hex Bolt,
M6x12
4
3 56250i-1203
Bottom Plate
Subassembly
1
4 56250i-1204
Flanged Hex Nut,
M6
4
5 56200-0408
Square Nut -
Grade C
4
6 56200-0504 Foot 1 2
7 56250i-1207
Flanged Hex Bolt,
M6x14
4
8 56200-0503 Foot 2 2
9 56250i-1209 Clip Nut 4
10 56200-0510 Engine Cushion 2 1
FIG. 12. BOTTOM PLATE
EXPLODED VIEW & PARTS LIST
No. Part No. Description Qty.
1 56250i-1301
Hex Step Bolt,
M5x14
6
2 56250i-1302 Muffler Cover Panel 1
3 56250i-1303 Muffler Cover Seal 1
4 56200-0427B Spring Clamp 6
FIG. 13. MUFFLER COVER
40
41
WARRANTY STATEMENT
WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with this
commitment and our dedication to quality.
LIMITED WARRANTY OF WEN PRODUCTS FOR HOME USELIMITED WARRANTY OF WEN PRODUCTS FOR HOME USE
GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that this WEN consumer prod
-
uct will be free from defects in material or workmanship during personal use for a period of three (3) years from date
of purchase or 500 hours of use; whichever comes first. Ninety days for all WEN products if the tool is used for profes
-
sional or commercial use. Purchaser has 30 days from the date of purchase to report missing or damaged parts. Parts
and labor are covered for one (1) year under this limited warranty; parts only are covered for three (3) years under this
limited warranty.
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to the extent per
-
mitted by law, any warranty or condition implied by law, shall be the replacement of parts, without charge, which are
defective in material or workmanship and which have not been subjected to misuse, alteration, careless handling, mis
-
repair, abuse, neglect, normal wear and tear, improper maintenance, improper storage, incorrect lubricants / fuels, or
other conditions adversely affecting the Product or the component of the Product, whether by accident or intentionally,
by persons other than Seller. To make a claim under this Limited Warranty, you must make sure to keep a copy of your
proof of purchase that clearly defines the Date of Purchase (month and year) and the Place of Purchase. Place of Pur-
chase must be a direct vendor of Great Lakes Technologies, LLC. Purchasing through third party vendors, including but
not limited to garage sales, pawn shops, resale shops, or any other secondhand merchant, voids the warranty included
with this product. Contact [email protected] or 1-847-429-9263 with the following information to make
arrangements: your shipping address, phone number, serial number, required part numbers, and proof of purchase.
Damaged or defective parts and products may need to be sent to WEN before the replacements can be shipped out.
Upon the confirmation of a WEN representative, your product may qualify for repairs and service work. When returning
a product for warranty service, the shipping charges must be prepaid by the purchaser. The product must be shipped
in its original container (or an equivalent), properly packed to withstand the hazards of shipment. The product must be
fully insured with a copy of the proof of purchase enclosed. There must also be a description of the problem in order
to help our repairs department diagnose and fix the issue. Repairs will be made and the product will be returned and
shipped back to the purchaser at no charge for addresses within the contiguous United States.
THIS LIMITED WARRANTY DOES NOT APPLY TO ITEMS THAT WEAR OUT FROM REGULAR USAGE OVER TIME,
INCLUDING FILTERS, SPARK PLUGS, VOLTAGE REGULATORS, BRUSHES, GASKETS, O-RINGS, WHEEL KITS, BAT
-
TERIES, RECOIL STARTERS, HIGH PRESSURE HOSES, SPRAY GUNS, ETC. ANY IMPLIED WARRANTIES SHALL BE
LIMITED IN DURATION TO THREE (3) YEARS FROM DATE OF PURCHASE. SOME STATES IN THE U.S. AND SOME
CANADIAN PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE
ABOVE LIMITATION MAY NOT APPLY TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING BUT
NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE OR USE OF THIS PRODUCT. SOME
STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF IN
-
CIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH
VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE IN CANADA AND FROM COUNTRY TO COUNTRY.
THIS LIMITED WARRANTY APPLIES ONLY TO ITEMS SOLD WITHIN THE UNITED STATES OF AMERICA, CANADA
AND THE COMMONWEALTH OF PUERTO RICO. FOR WARRANTY COVERAGE WITHIN OTHER COUNTRIES, CONTACT
THE WEN CUSTOMER SUPPORT LINE. FOR WARRANTY PARTS OR PRODUCTS REPAIRED UNDER WARRANTY
SHIPPING TO ADDRESSES OUTSIDE OF THE CONTIGUOUS UNITED STATES, ADDITIONAL SHIPPING CHARGES MAY
APPLY.
NOTES
42
43
NOTES
V. 2025.01.28
THANKS FOR
REMEMBERING
