S "AI:IS
operator's
manual
MODEL NO. 143.994024
4.0 RESERVE POWER
10 INCH CUBIC (163 cC
DISPLACEMENT
SOLID STATE IGNITIOf
CAUTION:
Read RULES for
Safe OPERATION
and INSTRUCTIONS
Carefully
NGIN
• Operating
• Maintenance
• Repair Parts
California Proposition 65 WARNING: Theo°gi.eexhaust from this product contains chemicals
known to the State of California to cause cancer, birth defects or other reproductive harm.
Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA
Printedin U.S.A. 6-1-99 181-1204-11
NIIIUIIUIllilillll
MODELAND
D.O,M. DECAL
STARTER
HANDLE
OIL FILL PLUG AND DIPSTICK
RECOIL STARTER
FUEL
3AP
SPARK PLUG WIRE
AIR
CONTROL
SPARK PLUG/"
CARBURETOR
Figure 1
THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD _.
ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS, READ AND
4t
FOLLOW ALL INSTRUCTIONS IN THIS MANUAL AND ANY PROVIDED WITH THE EQUIPMENT ON WHICH
THIS ENGINE IS USED BEFORE ATTEMPTING TO OPERATING.
THESE SYMBOLS MAY APPEAR ON THE ENGINE:
OFF FULL
FAST SLOW STOP CHOKE
ENGINESWHICHARECERTIFIEDTO COMPLYWITHCALIFORNIAAND
U.S.EPAEMISSIONREGULATIONSFOR ULGEENGINES: Arecertified
tooperateonregutarunleadedgasotine.Includethefollowingemissioncontrot
system(s):Era,TWC (ifsoequipped);Donot includeanyuseradjustable
features- thereforeno otheradjustmentsare needed.
OIL & FUEL RECOMMENDATIONS
TO OPERATE ENGINE, YOU WILL NEED THE FOLLOWING:
(_ A CLEAN, HIGH QUALITY, DETERGENT OIL.
Be sure odginalcontainer is marked:
A.P.Lservice "SF" -"SJ".
FOR SUMMER (ABOVE 32°F; 0°C) USE SAE 30 OIL.
Using multigrade oil will increase oil consumption.
FOR WINTER (BELOW 32°F; 0°C) USE SAE 5W30 OIL.
(SAE 10W is an accaptabia substitute.)
DO NOT USE SAE 10W40 OIL.
OIL SUMP CAPACITY: 21 ounces (1-1/4 U.S. pints)
.62 liter
(_A FRESH, CLEAN, UNLEADED REGULAR,
UNLEADED PREMIUM, OR REFORMULATED
AUTOMOTIVE GASOLINE ONLY. DO NOT USE
LEADED GASOLINE.
NOTE: DO NOT USE GASOLINE CONTAINING METHANOL
(WOOD ALCOHOL). Gasoline containingup to 10% ethanolor
grain alcohol ("Gasohol"),or up to 15% MTBE (Methyl Tertiary
Butyl Ether),may be usedbut requiresspecialcare when engine
is unused for extended periods.
See "STORAGE" instructionsof Page 4.
NOTE: Use clean oil and fuel and store in approved, clean
covered containers. Use clean fill funnels. Never use "stale"
gasoline leftover from last seasonor storedfor long periods.
Page 1
IMPORTANT
KEEP THIS MANUAL HANDY AT ALL TIMES FOR FUTURE
REFERENCE. READIT CAREFULLY AND FAMIUARIZE YOUR-
SELF WITH THE OPERATING, MAINTENANCE AND SAFETY
INSTRUCTIONS. THIS MANUAL ALSO CONTAINS A COM-
PLETE PARTS LISTING.
BEFORE STARTING
(_ READ ALL INSTRUCTIONS PROVIDED WITH THE EQUIP-
MENT ON WHICH THIS ENGINE IS USED.
_) CHECK OIL LEVEL:
IMPORTANT; NEVER RUN ENGINE UNLESS OIL LEVEL IS
BE'PNEEN "FULL" AND "ADO" MARKS ON
DIPSTICK,
CHECK OIL LEVEL OFTEN DURING ENGINE BREAK-IN.
NEVER RUN ENGINE UNLESS OIL FILL PLUG ISTIGHTENED
SECURELY INTO OIL FILL HOLE.
A. POSITION EQUIPMENT SO ENGINE IS LEVEL.
B. Clean area around oil fill plug (see Figure 1).
C. Remove oil fill plug and dipstick.
D. Wipe dipstick clean, insert it into oil fill hole and tighten
securely.
E. Remove oil fill plugand check oil level. If level is notup to
"FULL"mark on dipstick,add recommendedoil, untilit is.
POUR SLOWLY. Wipe dipstickclean each timeoil level is
checked. DO NOT FILL ABOVE "FULL" MARK ON DIP-
STICK.
F. Replace oil fill plug and tighten securely.
See "MAINTENANCE" section for any future oit levet and oil
change instructions(see Page 2).
161-1204-11
BEFORE STARTING (Continued)
(_) FILL FUEL TAN K withgasotineas specifiedinthe preceding
"OIL & FUEL RECOMMENDATIONS" item2.
NEVER MIX OIL WITH GASOLINE
Never use=stale"gasolineleft overfrom lastseasonorstoredfor
long periods.
_k NEVER FILL FUEL TANK INDOORS. NEVER FILL FUELTANK
WHEN ENGINE IS RUNNING OR HO'[. DO NOT SMOKEWHEN
I FILLINGFUELTANK. ' "
,_ NEVER FILL FUEL TANK COMPLETELY. FILL TANK TO 1/2" ]
BELOW BO'I-rOM OF FILLER NECKTO PROVIDE SPACE FOR
FUEL EXPANSION. WIPE ANY FUEL SPILLAGE FROM EN-
G NE AND EQU PMENT BEFORE START NG ENG NE.
_k ANY LIQUEFlED PETROLEUM (LPG) OR NATURAL GAS FUEL
SYSTEM MUST BE LEAKPROOF AND MEET ALI_APPLICA-
BLE CODES AND REGULATIONS.
(_ CHECK THE FOLLOWING:
_IIA. BE SURE EQUIPMENT IS IN NEUTRAL GEAR WITH]
CLUTCHES, BELTS, CHAINS AND SAFETY SWITCHES_
DISENGAGED. (FOLLOW EQUIPMENT MANU- /
FACTURER'S INSTRUCTIONS.) THIS SHOULD pLACE I
ANY SAFETY SWITCHES IN SAFE STARTING POSITION. /
B. Be suresparkplugwire isattechedto spark plug(see Figure
t).
STARTING
STOPPING
(_ Move ENGINE CONTROL (see Figure 1) toSTOP.
(_) AFTER ENGINE IS STOPPED:
,_A. DISCONNECT SPARK PLUG WlRE FROM SPARK PLUG
AND ATTACH ITTO RETAINING POST(seeFgure3).
,_B. NEVER STORE ENGINEWITH FUELIN TANKINDOORS OR I
IN ENCLOSED, POORLY VENTILATED AREAS, WHERE I
FUEL FUMES MAY REACH AN OPEN FLAME, SPARK ORI
PILOT LIGHT AS ON A FURNACE, WATER HEATER,
CLOTHES DRYER OR OTHER GAS APPL ANCE.
ROPEGUIDE
ure 2
SPARK PLUG
_ NEVER RUN ENGINE INDOORS OR IN ENCLOSED, POORLY
VENTILATED AREAS. ENGINE EXHAUST CONTAINS CAR-
BON MONOXIDE, AN ODORLESS AND DEADLY GAS (CAR-
BON MONOXIDE IS ALSO PRESENT IN ENGINE EXHAUST
FROMLIQUID PETROLEUM (LPG) AND NATURAL GASFUEL
SYSTEMS).
,_ KEEP HANDS, FEET, HAIR AND LOOSE CLOTHING AWAY
FROM ANY MOVING PARTS ON ENGINE AND EQUIPMENT.
,_WARNING: TEMPERATURE OF MUFFLER AND NEARBY
AREAS MAY EXCEED 150°F (65°C). AVOID THESE AREAS.
RETAINING POST
MAINTENANCE
Figure 3
PARK PLUG WIRE
,_WARNING: TEMPERATURE OF MUFFLER AND NEARBY1
AREAS MAY EXCEED 150°F (650C). AVOID THESE AREAS.|
(_) Move ENGINE CONTROL (see Figure 1) to HI Position.
(_) START ENGINE
A. The carburetor on your engine hasbeen completelyadjusted
at the factory. When startinga cold engine, push red pdmer
bulb firmly with your thumb 5 times, allowing primerbulb to
return completely to original position between pushes. Re-
peat the above for each starter operation as necessary.
NOTE: DO NOT USE PRIMER TO RESTART A WARM
ENGINE AFTER A SHORT SHUTDOWN.
S. Grasp starterhandle (see Figure2) and pullrope out,slowly,
untilit pullsslightlyharder. Let rope rewindslowly.Then pull
ropewitha rapidfullarmstroke.Letrope rewindSLOWLY. Do
not let starter handle snap back against rope guide (see
Figure2).
C. Repeat instructionB if necessary, untilengine starts.
NOTE: Ifengine does not start,repeat instructionsA, S and
C untilitstarts.
ENGINE SPEED: Enginespeed iscontrolledbythe ENGINE CON-
TROL see Figure 1).
ENGINE CONTROL should be in HI position for highgrass condi-
tions and for most efficientbaggingin heavy grass conditions,and
in LOW positionfor tightgrass, trimmingand for fuel economy. Page 2
(_ CHECK OIL LEVEL:
Checkoilleveleveryfive(5) operatinghoursoreachtimeengine
isused.See "_ CHECK OIL LEVEL"in"BEFORE STARTING"on
Page 1.
_) CHANGE OIL:
Change oil after first two (2) operating hours and every 25
operating hours thereafter, more often if operated in extremely
dusty or dirty conditions. Change oil while engine is still warm
from recent mnnina.
_ILA. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG
AND ATrACH IT TO RETAINING POST (see Rgure 3).
B. Positionequipmentso engineondrainplugislowestpoint on
engine.
C. Remove oil drain plug and oil fill plug to drain oil (see Figure
1).
D. Replace oil drain plug and tighten securely.
E. Fill oil sumpwith recommended oil.See "OIL & FUEL REC-
OMMENDATIONS" and "CHECK OIL LEVEL" on Page 1.
F. Replace oil fill plug and tighten securely.
G. Connect spark plug wire to spark plug.
H. Wipe up any spilledoil and/or gasoline.
NOTE: Ifitisdifficulttoreachthe oildrainplug,drainfuel.Remove
oil fill plug and tip mower on its side. Drain oil into a suitable
container.
181-1204-11
MAINTENANCE (Continued} MAINTENANCE (Continued}
(_ AIR CLEANER (see Figure4):
NEVER RUN ENGINE WITHOUT COMPLETE AIR CLEANER
INSTALLED ON ENGINE.
Replace filter once ayear ormoreoften ifusedinextremely dusty
ordirty conditions.
DO NOT ATTEMPT TO CLEAN OR OIL FILTER.
Replacement filters are availableat any Sears Roebuck and Co,
(or Sears Canada, Inc.} Service Center. To install new filter,
proceed as follows:
A. Turn cover to the left (counterclockwise)and remove it and
filter from flange, Discardfilter.
B. Clean cover and flange thoroughly.
C. Insert new filter into cover.
D. Positioncover and filter against flange with tab on cover
inserted into lower leftcorner of slot in flange.
E, Push cover firmly against flange and turn it to the right
(clockwise)as far as it will go. Be sure retainersare locked
around flange.
SLOT
FLANGE
FILTER CLOCKWISE)
TO REMOVE
RETAINER
TAB
TO THE RIGHT
(CLOCKWISE)
TO TIGHTEN
(_) SPARK PLUG (see Figure5}:
This spark ignitionsystem meets all requirements of the Cana-
dianInterference-Causing EquipmentRegulations. This engine
complieswith allcurrentAustralian and New Zealand limitations
regarding electromagnetic interference.
Check spark plug yearly or every 100 operatinghours
A. Clean area around spark plug.
B. Remove and inspect spark plug.
C. Replace spark plug ifelectrodesare pitted,burned orporce-
lainis cracked, For replacement use Champion RJ-19LM or
equivalent.
NOTE; A resistorspark plugmust be used for replacement.
D, Check electrodes gap with wire feeler gauge and set gap at
.030 if necessary.
E. Install spark plug, tightensecurely,
ELECTRODE_
Figure 5
(_) COOLING SYSTEM (see Figure1):
IMPORTANT: Frequentlyremove any grassclippings,dirt and
debris fromcoolingfins,airintake screen and leversand linkage
(see Figure1). Thiswillhelpensure adequatecoolingand correct
engine speed.
®
_k CHECK ENGINE AND EQUIPMENT OFTEN FORLOOSE NUTS1
BOLTS AND ATTACHMENTS, AND KEEP THESE ITEM_
I TmHTe.ED. !
F_ure 4
Page 3 181.1204-11
ADJUSTMENTS
DO NOT MAKEUNNECESSARY ADJUSTMENTS. FACTORY SET-
TINGS ARE SATISFACTORY FOR MOST APPLICATIONS AND
CONDITIONS. IF ADJUSTMENTS ARE NEEDED, PROCEED AS
FOLLOWS:
(_ CARBURETOR
Ifyou think your carburetor needs adjusting,see your nearest
SEARS ROEBUCK AND CO. (OR SEARS CANADA, INC.)
SERVICE CENTER. Engineperforrda_ceshouldnotbe affected
at altitudesupto 7,000 feet. For operationat higher elevations,
contactyour nearest SEARS, ROEBUCK AND CO. (OR SEARS
CANADA, INC.) SERVICE CENTER.
(_) ENGINE SPEED
Z_. NEVER TAMPER WITH ENGINE GOVERNOR WHICH ISFAC-
TORY SET FOR PROPER ENGINE SPEED. OVERSPEEDING
ENGINE ABOVE FACTORY HIGH SPEED SETTING CAN BE
DANGEROUS.
CHANGING OF ENGINE-GOVERNED SPEED WILL VOID EN-
GINE WARRANTY.
STORAGE
_L NEVERSTORE ENGINE WITH FUEL IN TANKINDOORS ORIN
ENCLOSED, POORLY VENTILATED AREAS, WHERE FUEL
FUMES MAY REACH AN OPEN FLAME, SPARK OR PILOT
LIGHT AS ON A FURNACE, WATER HEATER, CLOTHES
DRYER OR OTHER GAS APPLIANCE.
IF ENGINE ISTO BE UNUSED FOR 30 DAYS OR MORE,PREPARE
AS FOLLOWS:
C) DRAIN FUEL SYSTEM:
A.Removeallgasolinefromcarburetorandfueltanktoprevent
gumdepositsfromformingonthesepalls andcausingpossi-
ble malfunctionof engine.
!_ DRAIN FUEL INTO APPROVED CONTAINER OUTDOORS,
O E.FLAMEBBSUREE.GI.B.SCOOL
B. Run engine until fuel tank is empty and engine stopsdue to
lack of fuel.
NOTE: Fuel stabilizer (such as STA-BIL) is an acceptable
alternative in minimizing the formation of fuel gt_m
deposits during storage. Add stabilizer to gasoline
infuel tankorstoragecontainer.Alwaysfollow mix
ratio found on stabilizercontainer. Run engine at
least 10 minutesafteradding stabilizerto allowitto
reach carburetor.
STORAGE (Continued)
(_ CHANGE OIL:
Changeoilifithasnotbeenchangedinthelastthree(3)months,
See"CHANGEOIL"instructions_n"MAINTENANCE"section.
(_) OIL CYLINDER BORE:
A. Remove sparkplug.Squid one (1) oz. (30 ml) ofclean engine
oil intospark piog hole,
B. Cover spark plughole with a rag.
C. Crank engine over, slowly, several times.
AVOID SPRAY FROM SPARK PLUG HOLE WHEN CRANK-
_k ING ENGINE OVER SLOWLY.
D. Installsparkplug.Donot connectsparkplug wire.
(_) CLEAN ENGINE:
Removeanyclippings,dill, or chafffrom exteriorof engine.
GENERAL
Just as your automobile needs professional mechanical mainte-
nance from time to time, so does your Craftsman engine. Replace-
mentofthesparkplugand aircleaner ismade necessarybyNORMAL
use. ProfessionalAir-Cooled Engine Service is as close as your
nearest Sears Roebuck and Co. (or Sears Canada, Inc.) Service
Center.
A yeady check-up or tune-up by Sears is a good idea to avoid
breakdownsordelay.., doitattheend oftheseason,thenyou'reready
for the next.We even prepareit for storage for you.
Page 4 181-1204-11
TROUBLESHOOTING
THE FOLLOWING MAY HELP AVOID A DELAY IN YOUR WORK OR
SAVE THE EXPENSE OF A SERVICE CALL,
ENGINE FAILS TO START OR STARTS WITH DIFFICULTY
CAUSE
Contrctsnot in startposition.
Spark plugwire disconnectedfromspark plug.
Spark plug fouled.
Spark plug porcelaincracked,
Insufficientfuel.
Water or dirt in fuel.
Impropercarburetoradjustment
REMEDY
IMove ENGINE CONTROL or equipmentcontrolto"HI" or
,START postion. See "STARTING" instructions in this
manual.
Connect SPARK PLUG WIRE to SPARK PLUG.
Remove SPARK PLUG and clean it. See "SPARK
PLUG" instructions in "MAINTENANCE" sectionin this
;manual
Install new spark plug.
Fill FUEL TANK per "BEFORE STARTING" instructions.
Drain FUEL TANK and re-fill with clean, fresh gasoline.
See "BEFORE STARTING" instructions in this manual.
Adjust carburetor(if applicable), See "ADJUSTMENTS"
section in this manual.
ENGINE LACKS POWER
CAUSE
Dirty air cleaner.
Impropercarburetoradjustment,
Lack of lubdcaiton.
REMEDY
Replace or clean air cleaner per "AIR CLEANER"
instructions in "MAINTENANCE" section in this manual
Adjustcarburetor (if applicable), See "ADJUSTMENTS"
section inthis manual.
Fill oltsump to proper level. See "BEFORE STARTING"
instructionssectionin this manual.
ENGINE MISSES UNDER LOAD
CAUSE
Spark plug fouled,
Spark plugperceIain cracked.
improper spark pluggap.
Impropercarburetoradjustment
REMEDY
Remove SPARK PLUG and clean it, See "SPARK
PLUG" instructionsin "MAINTENANCE" section inthis
manual.
Install new SPARK PLUG.
Regap SPARK PLUG electrodes, See "SPARK PLUG"
instructionsin =MAINTENANCE" section inthis manual.
Adjust carburetor (if applicable). See "ADJUSTMENTS"
section inthis manual.
Page 5 181-1204-11
SEARS, ROEBUCK AND CO.
Federal and California Emission Control Systems Limited Warranty
Utility and Lawn and Garden Engines
CALIFORNIA & US EPA EMISSION CONTROL
WARRANTYSTATEMENT
The U S Environmental Protection Agency ('EPA*). the California Air
Resources Board (*CARB') and Sears, Roebuck and Co. ate pleased to explain
the Federal and California Emission Control Systems Warranty on your new
uOlityor lawn and garden equipment engine In California. new 1995 and later
utilityand lawn and garden equipment engines must be designed, built and
equipped to meet the State's stringent anti-smOg standards. In other states, new
1997 and later model year engines must be designed built and equipped at the
ime of sale. o mee he US. EPA regulations for small non-road engines.
Sears. Roebuck and Co will warrant the emission control system on your utility
or lawn and garden equipment engine for the periods of time listed beicw,
provided there has been no abuse, neglect unapproved modification or
mproper ma ntenance o your utilityor lawn and garden equipment engine•
Your emission control system may thcludeeparts such as the carburetor ignition
system and exhaust system, Also incthded may be the compression release
system and other emlasion-relatad assembbes,
Where a warrantable condition exists Sears Roebuck and Co, will repair your
ut lity or lawn and garden equipment engine at no cost to you for diagnosis, pads
and labor.
MAN UFACTURER'S EMISSION CONTROL SYSTEM
WARRANTY COVERAGE
Emission control systems on 1995 and later model year California utility and
lawn and garden equipment engines are warranted for two years as hereinafter
noted In other states, 1997 and later model year engines are also warranted for
two years g, dunng such warranty period any emission-related part on your
engine is defective in materials or workmanship, the pad will be repaired or
replaced by Sears, Roebuck and CO,
OWNER'S WARRANTY RESPONSIBILITIES
AS the utilityor lawn and garden equipment engine owner you are respensibla
for the performance of the required maintenance listed in your Owner's Manual
but Sears. Roebuck and Co will not deny warranty solely due to the lack of
receipts or for your failure to provide wdtten evidence of the performance of all
scheduled maintenance•
AS the ubldyor lawn add garden equi ment engine owner you should however
be aware that Sears. Roebuck and _r. may deny you warranty coverage if your
utility or lawn and garden equipment or a part thereof has failed due o abuse
neglect, improper maintenance or unapproved meditications.
You are responsible for presentin your utilityor lawn and garden equipmen
engine to a Sears, Roebuck and SO Authorized Service Outlet as soon as a
problem exists, The warranty repairs should be complated in a reasonable
amount of time, not to exceed 30 days.
Warranty service can be arranged by contacting either a Sears, Roebuck and
Co, Authorized Set/ice Outlet, or by contacting Sears, Roebuck and Co, at 1-
800473-7247¸
IMPORTANTNOTE
This warranty statement explains your rights and obligations under the Emission
Control System Wananty ("ECS Wan'snty') which is provided to you by Sears,
Roebuck and Co. pursuant to Calriomia law. See also the Sears Roebuck and
Co. Limi ed Warran ies for Sears, Roebuck and CO. which is enclosed therewith
on a separate sheet and also is provided to you by Sears. Roebuck and Co.
The ECS Warranty applies only to the emission control System of your new
engine To the extent that there is an conflict in terms=between the ECS
Warranty and the Sears, Roebuck an_Co. Warranty. the ECS Warranty shall
apply except in any circumstances in which the Sears, Roebuck and CO.
Warranty may provide a longer warranty period, Soth the ECS Warranty and
the Sears, ROebuck and CO. Warranty describe important rights and obtigations
with respect to your new engine•
Warranty service can only be performed by a Sears Roebuck and CO.
Authorized Service Outlet. At the time of requesting warranty service evidence
must be presented of the date of sale tO he orig na purohaset The purchaser
shall pay any charges for making service calla and/or f0r ttanspoffing the
products to and from the ptace where the inspection an(t/or warranty work is
performed. The purchaser shalt be tes onslbla for any damage or oss ncurred
in connection with the transportation ofPaCnyengine or any part(s) thereo :
submitted for inspection andlor warranty work , ' -
If you have any questions regarding your warren hghta and responsibilities.
you should contact Sears. Roebuck and CO. at lt-_00-473-7247
EMISSION CONTROL SYSTEM WARRANTY
Emission Control System Warranty ('ECS Warranty') for 1995 and later model
year California utility and lawn and garden equipment engines (for other states,
1997 and later mode[ year engines):
A APPLICABILITY: This warranty shall apply to 1995 and later model year
California utility and lawn and garden equipment engines (for other states 1997
and later mOdel year engines) The ECS Warranty Period shall begin on the date
the new engine or equipment isdelivered to itsoriginal end-use purchaser and
sha con nue or 24 consecutve months thereafter.
B, GENERAL EMISSIONS WARRANTY COVERAGE: Sears, Roebuck and Co
warrants to the original, end-use purchaser of the new engiineor equipment and
to each subsequent purchaser that each of its utilityand lawn and garden
equipment engines as:
1. Designed, built and equipped so as to conform with all applicable
regulations adopted bythe Air Resources Board pursuant to its authority
in Chapters 1 and 2, Part 5. Division 26 of the Health and Safety Code,
and
2. Free from defects in materials anti workmanship which, at any time
during the ECS Warranty Period, will cause a warranted emissions-related
part to fail to be identical in all mateda] respects to the part as described
in the engine manufacturer's application for certification
C. The ECS Warranty only pertains to emissions*related parts on your engine,
as follows:
1. Any warranted, emissions-related parts which are not scheduled for
replacement as required maintenance in the Owner's Manual shall be
warranted fo_the ECS Warranty Period, if any such part fails during the
ECS Warranty Period. it shall be repaired or replaced by Sears, Roebuck
and CO, according to Subsection 4 belaw, Any such part repaired or
replaced under the ECS Warranty shalt be warranted for any remainder of
the ECS Warranty Period
2,
3,
,4•
5.
6.
7.
9.
9,
Any warranted, emissions-related part which is scheduled only for regular
inspection as specified in the Owner's Manual shall be wan'anted for the
ECS warranty Period. A statement in such written instructions to the
effect of 'repair or replace as necessa_/', shall not reduce the ECS
Warranty Period, Any such part repaired or replaced under the ECS
Warranty shall be warranted for the remainder of the ECS Warranty
Period.
Any warranted, emissicns*related part which is scheduled for replacement
as required maintenance in the Owner's Manual. shall bewarranted for the
period of time prior to the first scheduled replacement point for that part
If the part talesprior to the first schedulad replacement, the part shall be
repaired or replaced by Sears, Roebuck and CO. according to Subsection
4 below. Any such emissions-related part repaired or replaced under the
ECS Warranty, shall be warranted for the remainder of the ECS Warranty
Period prior to the tirst schedulad replacement point for such emissions-
related part,
Repair orreplacement of any warranted, emissions-related part under this
ECS Warranty shall be performed at no charge to the owner at a Sears,
Roebuck and Co. Authorized Service Outlet.
The owner shall nqt be charged for diagnostic labor which leads to the
petefminabon that a part covered by the ECS Warranty is in fact
defective, provided that such diagnostic work is performed at a Sears,
ROebuck and Co Authorized Service Outlet,
Sears, Roebuck and Co. shall be liable for damages to other original
engine components or approved modifications proximately caused by a
failure under warranty of an emission-related part covered by the ECS
Warranty.
Throughout the ECS Warranty Period. Sears. Roebuck and Co. shall
maintain a supply of warranted emission-related parts sufficient to meal
the expected demand for such emission-related parts.
Any Sears. Roebuck and Co. authorized and approved emission-related
replacement part may be used in the performance of any ECS Warranty
maintenance or repair and wi5 be provided without charge to the owner.
Such use shall not reduce Sears, Roebuck and Co ECS Warranty
obligations,
Unapproved add-on or modified parts may not be used to modilifyor
repair a Sears. Roebuck and Co, engine, Such use voids this ECS
Warranttyand shatl be sufficient grounds for disallowing an ECS Warranty
claim. Sears, Roebuck and Co, shall not be liable hereunder for failures
of any warranted parts of a Sears, Roebuck and CO engine caused by
the use ofsuch an unapproved add-on or modified part
EMISSION*RELATED PARTS INCLUDE THE FOLLOWING:
1 Carburetor Assembly and its Internal Components
a) Fuel fiqer
b) Carburetor gaskets
c) Intake pipe
2 Air Cleaner Assembly
a) Air filter element
3 ignition System, including:
a) Spark plug •
b) Ignition module
c) Flywheel assembly
4_ Cata_yttc Muffler (if so equipped)
a)_Muffler gasket (if so equipped)
•_b) Exhaust manifold (if so equipped)
5. Crankcase Breather Assembly and ila Components
k.a) Breather connecbon tube
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
F;agR6
CRAFTSMAN 4-CYCLE ENGINE MODEL:143.994024
4OO
135
370B '_.<p
215,_.
2O4
182
185
130
370C
1lOAf 103,,
,285
126 101
119
125
52
46
"305
Page 7 181-1204-11
CRAFTSMAN 4-CYCLE ENGINE MODEL:143.994024
Ref. Pad
No. No.
1 37280
2 26727
6 33734
7 36557
12 36775
12A 36558
12B 36694
14 28277
15 30589
16 34839A
17 31335
18 651018
19 36281
20 32600
30 36833
40 35544A
40 35545A
40 35546
41 35541
41 35542
41 35543
42
42
42
43
45
46
48
5O
52
69
70
72
72A
75
80
81
82
83
86
89
9O
92
93
100
101
103
110
110A
119
120
125
126
130
135
150
35547A
35548A
35549
20381
36777
32610A
27241
37032
29914
*35261
34311E
36083
28534
27897
30574A
30590A
30591
30588A
650488
610961
611213
650815
650816
34443B
610118
651007
36230
36816
"37028
36825
37288
37289
6021A
35395
31672
Part Name
Ref.
No.
Part
No.
Cylinder (Incl. 2,20 & 150)
Dowel Pin
Breather Eler_ent
Breather Ass'y. (Incl. 6 & 12A)
Breather Tube
Breather Cover &Tube (IncL 12B)
Breather Tube Elbow
Washer
Governor Rod (Incl. 14)
Governor Lever
Governor Lever Clamp
Screw,Torx T-15, 8-32 x 19/64"
ExtensionSpring
Oil Seal
Crankshaft
Piston, Pin & Ring Set (Std.)
Piston,Pin& Ring Set (,010" OS)
Piston,Pin & Ring Set (.020" OS)
Piston& Pin Ass'y. (Std.) (incl. 43)
Piston & Pin Ass'y. (.010" OS) (Incl.
43) , .
Piston & Pin Ass y.(,020 OS) (Incl.
143)
Ring Set (Std.)
Ring Set (.010" OS)
Ring Set (.020 OS)
Piston Pin Retaining Ring
Connecting Rod Ass'y. (Incl. 46)
Connecting Rod Bolt
Valve Lifter
Camshaft (NCR)
Oil Pump Ass'y.
Mounting Flange Gasket
Mounting Flange (incl. 72 thru 63,
306)
Oil Drain Plug
Oil Drain Plug
Oil Seal
Governor Shaft
Washer
Governor Gear Ass'y. (incl. 81)
Governor Spool
Screw, 1/4-20 x 1-1/4"
Flywheel Key
Flywheel
BellevilleWasher
FlywheelNut
Solid State Ignition
Spark Plug Cover
Screw,TorxT-15, 10-24 x 15/16"
Ground Wire
Ground Wire
CylinderHead Gasket
CylinderHead
ExhaustValve (Std.) (Incl. 151)
Intake Valve (Std.) (Incl. 151)
Screw,5116-18 x 1-1/2" ' .
ResistorSpark Plug (RJ19LM)
i Valve Spdng
151
151A
169
172
174
178
179
182
184
185
186
200
202
203
2O4
205
2O6
2O7
209
215
223
224
236
239
241
245
250
260
261
262
263
275
275A
277
284
Z84A
285
287
290
292
300
301
3O5
306
31673
40017
"36783
36784
30200
29752
30593
6201
*26756
36785
34337
33205A
36482
31342
651029
651019
610973
34336
30200
32410
650451
*36786
650932
*34338
35797
35066
35065
36798
30200
650831
36240
36837A
36790A
650988
36663
650821
35000A
650926
34357
26460
35586
35355
35577
*36996
Part Name
Valve SpringCap
Intake Valve Seal
Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & LockWasher, 1/4-28
Retainer Clip
Screw, 1/4-28 x 7/8"
CarburetorTo Intake Pipe Gasket
Intake Pipe
GovernorLink
ControlBracket (Incl.202 thru206)
Compression Spring
CompressionSpdng
Screw,Torx %10, 5-40 x 7/16"
Screw,Torx %10, 6-32 x 41/64"
Terminal
Throttle Link
Screw, 10-24 x9116"
ControlKnob
Screw, 114-20x 1"
Intake Pipe Gasket
Screw, 10-32 x 49/64"
Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
BlowerHousing
Screw, 10-24 x9/16"
Screw, 1/4-20 x 1/2"
Trim Ring
Muffler
Muffler (Optional)
(NOTE: This mufflerusedtogether
with Ref#'s 284,284A,416 & 417
make up an optionalspark arrestor
muffler).
Screw, 1/4-20 x 2-5116"
Muffler Deflector(InN, 284)
(Optional)
Screw, 10-32 x 1/2" (Optional)
Starter Cup
Screw, 8-32 x 21/64"
Fuel Line
Fuel LineClamp
FuelTank (Incl. 292 & 301)
Fuel Cap
Oil FillTube
"O"-Ring
*lndicates Partslncludedin
GasketSaL Ref. No. 400.
Page 8 181-1204-11
CRAFTSMAN 4-CYCLE ENGINE MODEL:143,99402,
Ref. Pad
No. No.
307 35499
309 650562
310 35578
313 34080
370A 36261
370B 35169
370C 37199
370K 36695
380 640174
390 590737
400 37029A
Pa_ Name
"O"-Ring
Screw, 10-32 x 1/2"
Dipstick
Spacer
LubricationDecal
Control Decal
Primer Decal
Starter Decal
Carburetor (Incl. 184)
Rewind Starter
(NOTE: This engine could have
been built with 590694 starter).
Gasket Set (Incl. Items Marked *)
Ref.
No.
416
417
9OO
9OO
Part
No.
35085
650821
181-1204-11
Part Name
Spark Arrestor Kit (Incl. 417)
(Optional)
Screw, 10-32 x 1/2" (Optional)
Replacement Engine 750838A,
order from 71-999
Replacement ShortBlock
750833A, orderfrom 71-999
Operator's Manual
*Indicates Parts Includedin
Gasket Set, Ref. No. 400.
RPM High 3050 to 3350
RPM Low 2400 to 2700
CARBURETOR NO. 640174
Ref.; PaR
No, No. Pa_ Name
640174
1 631615
2 631767
4 *631184
5 *631183
6 640070
7 *650506
16 631807
17 651025
18 630766
20 640018
20A 640200
25 631867
27 *631024
28 632019
29 *631028
30 *631021
31 631022
35 36045A
36 640080
36A 632766
37 *632547
40 640175
44 27110A
47 "630748
48 *631027
48A *631027
60 632760
Carburetor (Incl. 184 of Engine Parts
List)
Throttle Shaft & Lever Assembly
Throttle Return Spring
Dust Seal Washer
Dust Seal (Throttle)
Throttle Shutter
Shutter Screw
Fuel Fitting
Throttle Crack Screw/Idle Speed Screw
Tension Spring
Idle RestdctorScrew
Idle Restiictor Screw Cap
Float Bowl
Float Shaft
Float
Float Bowl "O" Ring
Inlet Needle, Seat, & Clip (Incl. 31)
Spring Clip
Pdmer Bulb/Retainer Ring
Main Nozzle Tube
Carburetor Tube
=O"Ring, Main Nozzle Tub
High Speed Bowl Nut
Bowl NutWasher
Welsh Plug, Idle Mixture Well
Welch Plug, AtmosphericVent
, Welch Plug
Repair Kit (Inc_.Items Marked *)
Page 9 181-1204-11
REWIND STARTER NO. 590737
_14
12
Ref. Part
No, No. Part Name
590737
3 590740
6 590616
7 590617
8 590618A
11 590687A
12 590535
13 590701
14 590760
Rewind Starter
Retainer
Starter Dog
Dog Spring
Pulley & Rewind SpringAss'y
Starter HousingAss'y (40 degree
grommet)
Starter Rope (Length 98"x 9164"
dia.)
Starter Handle
Spring Clip
STARTER NO. 590694
/
13
12
\
--8
:
Bm 5
11
Ref. Part
No. No. Pe_ Name
590694
1 590599A
2 590600
3 590696
4 590601
5 590697
6 590698
7 590699
8 590700
11 590695
12 590535
13 590701
Recoil Starter
Spring Pin (Inc_.4)
Washer
Retainer
Washer
Brake Spdng
Starter Dog
Dog Spring
Pulley & Rewind SpringAss'y,
Starter Housing Ass'y. (40 degree
grommet)
Starter Rope ( 98" x 9/64' die.)
Starter Handle
Page 10 181-1204-11
operator's
manual
MODEL NO. 143.994024
4.0 RESERVE POWER
10 CUBIC INCH (163 cc)
DISPLACEMENT
SOLID STATE IGNITION
CAUTION:
Read RULES for
Safe OPERATION
and INSTRUCTIONS
Carefully
How to ORDER Repair Parts
The Model Number canbe found ona decal on theblower housing
(See Figure 1). Always mention the Model Number when request-
ing service orrepair parts for your Craftsman Engine,
All parts listed herein may be ordered from any SEARS, ROE-
BUCK AND CO. or SEARS CANADA, INC. retail or catalog store.
If the parts you need are notstocked locally, your order will be
electronically transmitted to a Sears Repair Parts Distribution
Center for expedited handling.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION AS SHOWN IN THIS LIST.
1. The PART NUMBER
2. The PART DESCRIPTION
3. The MODELNUMBER
4. The NAME OF ITEM - ENGINE
"Your Sears merchandisehas addedvalue when you consider that Sears has
service units nationwide staffed with Sears trained technicians.., professional
technicians specifically trained on Sears products, having the parts, tools and
equipmentto insure that we meet our pledge to you ...we servicewhat we sell."
Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA
181-1204-11
