Sears 143.994006 User manual

SEARS
operator's
manual
MODEL NO. 143.994006
4.0 RESERVE POWER
10 INCH CUBIC (163 cc)
DISPLACEMENT
SOLID STATE IGNITION
CAUTION:
Read RULES for
Safe OPERATION
and INSTRUCTIONS
Carefully
ENGIN
•Operating
•Maintenance
•Repair Parts
ACalifornia Proposition 65 WARNING: The engine exhaust from this product contains chemicals [
known to the State of California to cause cancer, birth defects or other reproductive harm. I
Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA
Printedin U.S.A. 4-1-99 181-1178-11

IIHIIIIl_lllllll|iill]
MODELAND
D.O.M.DECAL
OIL FILL PLUG AND DIPSTICK
RECOIL STARTER
STARTER HANDLE
FILL CAP
FUEL TANK
SPARK
PLUG WIRE\AIR CLEANER
OIL DRAIN PLUG
I
Be'FrOM OF ENGINE ]
m
Figure 1 ,_
THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD
ENOANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND
FOLLOW ALL INSTRUCTIONS IN THIS MANUAL AND ANY PROVIDED WITH THE EQUIPMENT ON WHICH
THISENGINE IS USED BEFORE A'FrEMPTING TO OPERATING.
THESE SYMBOLS MAY APPEAR ON THE ENGINE: EI88
OFF FULL
FAST SLOW STOP CHOKE
ENGINES WHICH ARE CERTIFIED TO COMPLY WITH CAUFORNIA AND
US EPA EMISSION REGULATIONS FOB ULGE ENGINES: Are certified
toopemtaonregularunleededgasoline. Include the followingemission control
system(s): EM, TWC (if so equipped); Do not include any user adjustable
features - therefore no other adjustments are needed.
OIL & FUEL RECOMMENDATIONS
TO OPERATE ENGINE, YOUWILL NEED THE FOLLOWING:
(_ A CLEAN, HIGH QUALITY, DETERGENT OIL."
Be sure original container is marked:
A.P.I. service "SF"-"SJ",
FOR SUMMER (ABOVE 32°F; O°C) USE SAE 30 OIL.
Using muitigrade oil will increase oil consumption.
FOR WINTER (BELOW 32°F; O°C) USE SAE 5W30 OIL.
(SAE 10W is an acceptable 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, UN-
LEADED PREMIUM, OR REFORMULATED AU-
TOMOTIVE GASOLINE ONLY. DO NOT USE
LEADED GASOLINE.
NOTE: DO NOT USE GASOLINE CONTAINING METHANOL
(WOOD ALCOHOL). Gasoline containing up to 10% ethanol or
grain alcohol ("Gasohol"), or up to 15% MTBE (Methyl Tertiary
Butyl Ether), may be used butrequires special care when engine
is unused for extended periods.
I
I
See "STORAGE" instructionsofPage4.
NOTE: Use clean oil and fuel and store in approved, clean
covered containers. Use clean fillfunnels.
Neveruse"stale"gasolineleftoverfromlastseasonorstoredfor
long periods. IMPORTANT
KEEP THIS MANUAL HANDY AT ALL TIMES FOR FUTURE
REFERENCE.READITCAREFULLYANDFAMIBARIZEYOUR-
SELFWITH THE OPERATING, MAINTENANCEANDSAFETY
INSTRUCTIONS. THIS MANUAL ALSO CONTAINS A COM-
PLETE PARTSLISTING.
BEFORE STARTING
(_ READ ALLINSTRUCTIONS PROVIDED WITH THE EQUIPMENT
,_ON WHICH THIS ENGINE IS USED.
THIS ENGINE IS EQUIPPED WITH A FEDERALLY MANDATED
MECHANISM WHICH STOPS THE ENGINE. DO NOT
INTERFERE WITH OR BYPASS THIS MECHANISM. PARTS OF
THE MECHANISM MAY BE SUBJECTTO WEAR AND MUST BE
CHECKED ONCE A YEAR BY AN AUTHORIZED SEARS
ROEBUCK AND CO. (OR SEARS CANADA, INC.) SERVICE
CENTER. IN THE EVENT THE MECHANISM FAILS FOR ANY
REASON, YOU MUST NOT USE THE ENGINE UNTIL
CORRECTED BY AN AUTHORIZED SEARS ROEBUCK AND i
CO. (OR SEARS CANADA. INC.) SERVICE CENTER.
_L DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND
A'FFACH IT TO RETAINING POST (see Figure 6 on Page 3).
Page 1 181-1178-11

,BEFORE STARTING (Continued)
(_) INSTALL ENGINE BRAKE CABLE AND STARTER ROPE:
BRAKE CABLE (see Figure 2):
Attach engine brake cable to brake mechanism as shown.
WARNING: Use only the cable screw that came with the engine
brake cable. Ifthe cable screw has been lost,get a new one from
a Sears, Roebuck and Co. (or Sears Canada, Inc.) Service
Center. Any cable screw used must be the same length as the
original cable screw.
STARTER ROPE:
A. Depress mower control bar (see Figure 3) against mower
handle and hold it in this position.
B. Pull at least 2feet of starter rope out of starter and tie a slip
knotat starterto prevent starter rope from rewinding back into
starter.
C. Slide rope stop (see Figure 2) onto starter rope and feed
starter rope through rope guide on mower handle, (see
Figure 4).
D. Feed starter robe through starter handle (see Figure 5) and
tie a left hand knot, leevingl/2 inch to 1 inch of starter rope
extending beyond knot. DO NOT PULL LEFT HAND KNOT
INTO STARTER HANDLE YET.
E. With starter handle resting on rope guide (see Figure.4),
check starter rope for slack. If there is any slack, pull more
starter rope through starter handle and relocate left hand
knot to eliminate slack. .!
F. Untie slip knot at starter.
G. Pull left hand knot into starter handle.
H. Position rope stop 2to 3 inches from starter (see Figure 2)
and fasten it to starter rope by gripping it with pliers and
forcing staple through starter rope untilstaple iseven without
_) side of robe stop.
CHECK OIL LEVEL:
CAUTION: NEVER RUN ENGINE UNLESS OIL LEVEL IS BE-
TWEEN "FULL" AND "ADD" MARKS ON DIPSTICK,
CHECK OIL LEVEL OFTEN DURING ENGINE BREAK-IN,
NEVER RUN ENGINE UNLESS OIL FILL PLUG IS TIGHTENED
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 plug :_ndcheck oil level. If level is not up to
"FULL" mark on dipstick, add recommended oil, until it is.
POUR SLOWLY. Wipe dipstick clean each time oil level is
checked. DO NOT FILL ABOVE =FULL" MARK ON DIP-
STICK.
F. Replace oil fill plug and tighten securely. See =MAINTE-
NANCE" section for any future oil level and oil change
instructions (see Page 3).
2TO3
ROPE STOP INCHES
STARTER
STARTER
ROPE
BRAKE MECHANISM
BEFORE STARTING (Continued)
(_ FILL FUEL TANK with gasoline as specified in the preced-
ing =OIL & FUEL RECOMMENDATIONS," item 2.
NEVER MIX OIL WITH GASOLINE
Never use =stale" gasoline left over from last season or stored for
long bededs.
,_ NEVER FILL FUELTANK INDOORS, NEVER FILL FUELTANK I
WHEN ENGINE IS RUNNING OR HOT. DO NOT SMOKE WHEN
FILLING FUELTANK.
_k NEVER FILL FUEL TANK COMPLETELY. FILL TANK TO 1/2" I
BELOW BOTTOM OF FILLER NECKTO PROV DE SPACE FOR
FUEL EXPANSION. WIPE ANY FUEL SPILLAGE FROM EN-
G NE AND EOU PMENT BEFORE _TARTING I=N_INF.
_ANY LIQUEFIED PETROLEUM OR NATURAL GAS FUEL]
(LPG)
SYSTEM MUST BE LEAKPROOF AND MEET ALL APPLICA-
I BLE CODES AND REGULATIONS.
._HECK THE FOLLOWING:BE SURE EQUIPMENT IS IN NEUTRAL GEAR WITH]
CLUTCHES, BELTS, CHAINS AND SAFETY SWITCHESI
DISENGAGED. (FOLLOW EQUIPMENT MANU- I
FACTURER'S INSTRUCTIONS). THIS SHOULD PLACE
ANYSAFETYSW TCHES NSAFESTARTINGPOSmON.
B. Besuresparkplugwireisattachedto sparkplug(see Figure
1).
MOWER
CONTROL
BAR
MOWER HANDLE
STARTER HANDLE\
Figure 3
NO SLACK PERMISSIBLE
MOWER HANDLE
Figure 4
LEFT HAND KNOT
STARTER
HANDLE
STARTER I
1/2 TO 1 INCH
Figure 5
Figure 2 Page 2 181-1178-11

STARTING
_IkNEVER RUN ENGINE INDOORS OR IN ENCLOSED,
POORLY VENTILATED AREAS. ENGINE EXHAUST
ICONTAINS CARBON MONOXIDE, AN ODORLESS AND
DEADLY GAS (CARBON MONOXIDE IS ALSO PRESENT
IN ENGINE EXHAUST FROM LIQUID PETROLEUM (LPG)
AND NATURAL GAS FUEL SYSTEMS).
_KEEP HANDS, FEET, HAIR AND LOOSE CLOTHING
AWAY FROM ANY MOVING PARTS ON ENGINE AND
IEQUIPMENT.
_k WARNING TEM PERATU RE OF MUFFLER AND NEARBY
AREAS MAY EXCEED 150eF (65°C). AVOID THESE
IAREAS.
',,J.J Move engine control (see Figure 1) to HI Position.
START ENGINE: ' •
A. When starting a cold engine, push red pdmer bulb
firmly with your thumb 5times, allowing pdmer bulb
to return completely to original position between
pushes. Repeat the above for each starter operation as
necessary.
NOTE: DO NOTUSE PRIMER TO RESTARTA WARM
ENGINE AFTER A SHORT SHUTDOWN.
B. Operate mower control to release.engine brake.
C. Grasp starter handle (sea Figure 4) and pull robe out,
slowly, until it pulls slightly harder. Let rope rewind
slowly. Then pull rope with a rapid full arm stroke. Let
rope rewind SLOWLY. Do not let starter handle snap
back against rope guide (see Figure 4).
D. Repeat instructions B and C if necessary, until engine
starts. NOTE: If engine does not start, repeat instruc-
tions A, B, C and D until it starts.
ENGINE SPEED: Engine speed is controlled by the engine
control (see Figure 1). Engine control should be in HI position
forhigh grass conditions and for most efficient bagging in heavy
grass conditions, and in LOW position for light grass, trimming
and for fuel economy.
STOPPING
(_) See mower manufacturer's instructions.
(_) AFTER ENGINE IS STOPPED:
_. DISCONNECT SPARK PLUG WIRE FROM SPARK
PLUG AND ATTACH IT TO RETAINING POST (see
IFigure6).
,_. NEVER STORE ENGINE WITH FUEL I1_1TANK IN-
DOORS OR IN 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 (;;AS APPLIANCE.
SPARK
PLUG
RETAINING SPARK PLUG
WIRE
MAINTENANCE
_WARNING: TEMPERATURE OF MUFFLER AND NEARBY AREAS
MAY EXCEED 150°F (65°C). AVOID THESE AREAS.
(_ CHECK OIL LEVEL:
Check oillevel everyfive(5) operatinghoursor each timeengineis
used.See =3CHECK OIL LEVEL"in"BEFORESTARTING"on Page
2.
(_) CHANGE OIL:
Change oilafterfirsttwo(2) operatinghoursand every25 operating
hoursthereafter,more often if operatedin extremelydustyor dirty
conditions. Changeoilwhileengineisstillwarmfromrecentrunning.
_ILA. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND
AI-rACH IT TO RETAINING POST (see Figure 6).
B. Position equipment so engine oil drain plug is lowest point 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 sump with recommended oil. See =OIL & FUEL RECOM-
MENDATIONS" 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 spilled oil and/or gasoline
NOTE: Ifitisdifficulttoreach theoil dreinplug, drain fuet.Remove
oil fill plug and tip mower on its side. Drain oil into a suitable
container.
®AIR CLEANER (see Figure 7):
NEVER RUN ENGINE WITHOUT COMPLETE AIR CLEANER IN-
STALLED ON ENGINE.
Replace rifleronce a year or more often if used in extremely dusty or
dirty conditions.
DO NOT ATTEMPT TO CLEAN OR OIL FILTER.
Replacement filters are available at 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. Discard filter.
B. Clean cover and flange thoroughly.
C. Insert new filter intocover.
D. Position cover and filter against flange with tab on cover inserted
into lower left comer of slot in flange.
E. Push cover firmly against flange and turn it to the right (clockwise)
as far as itwill go. Be sure retainers are locked around flange.
TURN COVER TO THE
LEFT
(COUNTERCLOCKWISE
TO REMOVE
RETAINER COVER
3LOT
TAB TO THE RIGHT
(CLOCKWISE)
TO TIGHTEN
Figure 7
Figure 6 Page 3 181-1178-11

MAINTENANCE (Continued) STORAGE
(_ SPARK PLUG (see Figure8):
Thisspark ignitionsystemmeetsall requirementsofthe Cana-
dianInterference-CausingEquipmentRegulations.Thisengine
complieswithallcurrentAustralianand NewZealand limitations
regardingelectromagneticinterference.Checksparkplugyeady
or every 100 operatinghours.
A. Clean area aroundspark plug.
B. Removeand inspectspark plug.
C. Replacesparkplugif electrodesare pitted,burnedor porce-
lainis cracked.For replacementuse ChampionRJ-19LMor
equivalent.
NOTE: A resistorsparkplugmustbe usedfor replacement.
D. Checkelectrodesgap withwire foolergauge and set gap at
.030 if necessary. ,,
E. Installsparkplug,tightensecurely.
ELECTRODES_
.030 GAP PORCELAIN
_NNEVER STORE ENGINE WITH FUEL IN TANK INDOORS OR
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 IS TO BE UNUSED FOR 30 DAYS OR MORE, PREPARE
AS FOLLOWS:
(_ DRAIN FUEL SYSTEM:
A. Removeallgasolinefromcarburetorand fueltanktoprevent
gum depositsfromformingonthesepartsand causing possi-
ble malfunction ofengine.
,_DRAIN FUEL INTO APPROVED CONTAINER OUTDOORS,
AWAY FROM OPEN FLAME. BE SURE ENGINE IS COOL.
I DO NOT SMOKE.
B. Run engine until fuel tank is empty and engine stops due to
lack of fuel.
NOTE: Fuel stabilizer (such as STA-BIL) is an acceptable
alternative in minimizing the formation of fuel gum deposits
during storage. Add stabilizer to gasoline in fuel tank or
storage container. Always follow mix ratio found on stabilizer
container. Run engine at least 10 minutes after adding stabi-
lizer to allow it to reach carburetor.
Figure8
(_) COOLING SYSTEM:
IMPORTANT: Frequentlyremoveanygrassclippings,dirtand
debrisfromcoolingfins,airintakescreenandleversand linkage
(see Figure 1). This will help ensure adequate coolingand
correctengine speed.
(_) CHANGE OIL:
Changeoilifithasnotbeenchangedinthelastthree(3) months.
See "CHANGEOIL"instructionsin"MAINTENANCE"sectionon
Page3.
(_ CLEAN ENGINE:
(_ , Remove any clippings, dirt, or chaff from extedor of engine.
CHECK ENGINE AND EQUIPMENT OFTEN FOR LOOSE NUTS, I
BOLTS AND ATrACHMENTS, AND KEEP THESE ITEMSI_I=NI=RAL
akin TIGHTENED. I ..........
"Just as your automobile needs professional mechanical mainte-
ADJUSTMENTS
DO NOT MAKE UNNECESSARY ADJUSTMENTS. FACTORY SET-
TINGS ARE SATISFACTORY FOR MOST APPLICATIONS AND
CONDITIONS. IF ADJUSTMENTS ARE NEEDED, PROCEED AS
FOLLOWS:
nancafromtimeto time,so doesyourCraftsmanengine.Replace-
mentofthesparkplugandaircleanerismadenecessarybyNORMAL
use. ProfessionalAir-Cooled Engine Service is as close as your
nearest Sears Roebuckand Co. (or Sears Canada, Inc.) Service
Center.Ayearlycheck-uportune-upbySearsisagoodideatoavoid
breakdownsordelay.., doitattheendoftheseason,thenyou'reready
for the next.We even prepareitfor storagefor you.
(_) CARBURETOR
If you think your carburetor needs adjusting, see your nearest
SEARS, ROEBUCK AND CO. (OR SEARS CANADA, INC.)
SERVICE CENTER. Engine performance should not be affected
at altitudes up to 7,000 feet. For operation at higher elevations,
contact your nearest SEARS, ROEBUCK AND CO. (OR SEARS
CANADA, INC.) SERVICE CENTER.
(_ ENGINE SPEED
_NEVER TAMPER WITH ENGINE GOVERNOR WHICH IS FAC- I
TORY SET FOR PROPER ENGINE SPEED. OVERSPEEDING I
ENGINE ABOVE FACTORY HIGH SPEED SETFING CAN BE
DANGEROUS. CHANG NG OF ENG NE-GOVERNED SPEED
WILL VOID ENGINE WARRANTY.
Page 4 181-1178-11

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
Controls not in star position.
Spark plugwire disconnectedfromsparkplug.
Spark plugfouled.
Sparkplugporcelaincracked.
Insufficientfuel.
REMEDY
Move ENGINE CONTROL or equipment control to "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' section in this
manual.
Install new spark plug.
Fill FUEL TANK per "BEFORE STARTING" instructions.
Water ordirtinfuel.
Impropercarburetoradjustment
DrainFUELTANK and re-fillwithclean,fresh gasoline.
See 'BEFORE STARTING" instructionsinthismanual.
Adjustcarburetor(fapp cable). See "ADJUSTMENTS"
sectioninthis manual.
ENGINE LACKS POWER
CAUSE
Dirtyaircleaner.
Impropercarburetoradjustment.
Lackoflubricaiton.
REMEDY
Replaceorcleanair cleanerper "AIRCLEANER"
instructionsin"MAINTENANCE"sectioninthismanual.
Adjust carburetor (if applicable). See "ADJUSTMENTS"
section in this manual.
Filloilsumptoproperlevel. See "BEFORESTARTING"
instructionssectionin thismanual.
ENGINE MISSES UNDER LOAD
CAUSE
Spark plug fouled.
Sparkplugporcelaincracked.
Impropersparkpluggap.
Impropercarburetoradjustment
REMEDY
Remove SPARK PLUG and clean it. See 'SPARK
PLUG' instructions in "MAINTENANCE" section in this
manual.
Installnew SPARK PLUG.
Regap SPARK PLUG electrodes. See "SPARK PLUG"
instructions in "MAINTENANCE" section in this manual.
Adjust carburetor (if applicable). See "ADJUSTMENTS"
section in this manual.
Page 5 181-1178-11

SEARS, ROEBUCK AND CO.
Federal and California Emission Control Systems Limited Warranty
Utility and Lawn and Garden Engines
CALIFORNIA & US EPA EMISSION CONTROL
WARRANTYSTA'I_MENT
The U. S. Environmental Protection Agency ('EPA'), the California Air
Resources Board ("CARS") and Sears, Roebuck and Co. are pleased to explain
the Federal and California Emission Control Systems Warranty on your new
utility or lawn and garden equipment engine. In California, new 1995 and later
utility and 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, buig and equipped, at the
time of sale, to meet the U.S. EPA regulations for small non-reed 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 below
provided there has been no abuse, neglect, unapproved modification, or
improper maintenance of your utility or lawn and garden equipment engine.
Your emission control system may include parts such as the carburetor, ignition
system and exhaust system. Also included may be the compression release
system and other emission-relatad assemblies.
Where a warrantable condition exists, Sears, Roebuck and CO. will repair your
utili or lawn and garden
anhtybur.die equipment engine at no cost to you for diagnosis, parts
MANUFACTURER'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. If, during such warranty pedod, any emIpsion-relatad part on your
engine is defective in materials or workmanship, the part will be repaired or
replaced by Seam, Roebuck and Co.
OWNER'S WARRANTY RESPONSIBILITIES
As the utility or lawn and garden equipment engine owner, you are responsible
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 written evidence of the performance of all
scheduled maintenance.
As the utility or lawn and garden equipment engine owner, you should, however,
be aware that Sears, Roebuck and CO. may deny you warranty coverage if your
utility or lawn and garden equipment or a part thereof has faileddue to abuse,
neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your utility or lawn and garden equipment
engine to a Sears, Roebuck and Co. Authorized Service Outlet as soon as a
problem exists. The warranty repairs should be completed in areasonable
amount of time, not to exceed 30 days.
Warranty sewice can be arranged by contacting either a Sears, Roebuck and
Co. Authorized Service Outlet, or by contacting Sears, Roebuck and Co. at 1-
800-473-7247. •
IMPORTANTNOTE
This warranty statement explains your rights and obligations under the Emission
Control System Warranty ('ECS Warranty') which is provided to you by Sears,
Roebuck and Co. pursuant to California law. See also the Sears, Roebuck and
Co. Limited Warranties 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 an1'/conflict in terms between the ECS
Warranty and the Sears, Roebuck andCo. Warranty the ECS Warranty shall
apply except in any circumstances in which the Sears Roebuck and CO.
Warranty may provide a longer warranty period. Both the ECS Warran_ and
the Sears, Roebuck and Co. Warranty describe important dghts and obhgations
with respect to your new engine.
Warranty service can only be performed by a Sear._ Roebuck and Co.
Authorized Service Outlet. At the time of requesting warranty service, evidence
must be presented of the date of sale to the odginal purchaser. The purchaser
shall pay any charges for making service calls and/or for transpesting the
products to and from the place where the inspection and/or warranty work is
performed. The purchaser shall be responsible for any damage or Ioss incurred
in connection with the transportation of any engine or any gad(s) thereof
submitted for inspection and/or warranty work.
If you have any questions regarding your warranty rights and responsibilities
you should contact Sears, Roebuck and Co. at 1-800-473-7247.
EMISSION CONTROL SYSTEM WARRANTY
Emission Control System Warranty "ECS Warranty" for 1995 and later model
year Calgomia utility and lawn andgarden equipment engines (for other states
1997 and later model year engines):
A. APPLICABILITY: This warran_ty 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 is delivered to its original end-use purchaser, and
shall coct nue for 24 consecutive months thereafter.
B. GENERAL EMISSIONS WARRANTY COVERAGE: Sears, RoebuckandCo.
warrantsto theoriginal,end-use purchaserof the new eng_ineor equipmentand
to each subsequentpurchaserthat each of its utilityand lawn and garden
equipmentengines is:
1. Designed, built and equipped so as to conform with all applicable
regulations adopted by the Air Resources Board pursuant to its authority
in Chapters I and 2, Pad 5, Division 26 of the Health and Safety Code.
and
2. Free from defects in materials and workmanship which, at any time
during the ECS Warranty Period, will cause a warranted emissions-related
part to fail to be identical in all material respects to the part as described
in the engine manufacturer's application for certification.
C. The ECS Warranty only pedains to emissions-relatad parts on your engine,
as follows:
Any warranted, emissions-related parts which are not scheduled for
replacement as req_uiredmaintenance in the Owner's Manual shall be
warranted for the ECS Warranty Period. If any such part fails dudng the
ECS Warranty Period, it shall be repaired or replaced by Sears, Roebuck
and Co. according to Subsection 4 below. Any such part repaired or
replaced under the ECS Warranty shaU be warranted for any remainder of
the ECS Warranty Period,
Any warranted, emissions-related part which is scheduled only for regular
!nspectldn as egecfflad in the Owner's Manual shall be warranted for the
ECS Warranty Peded. A statement in such written instructions to the
effect of "repair or replace as necessary =, 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
Peded.
3.
4.
5.
6.
71
8.
g.
Any warranted, emissions-related gart which is scheduled for replacement
as reequireqmaintenance in the Owner's Manual, shall be warranted for the
pedod of time pdor to the first scheduled replacement point for that part.
If the part fails pdor to the first scheduled replacement, the part shell 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 pdor to the first scheduled replacement point for such emissions-
related part.
Repair or replacement 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 not be charged for diagnostic labor which leads to the
determination 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
ma nta n a supp y of warranted emission-relatad parts sufficient to meet
the expected demand for such emlasion-relatad 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 will be provided without charge to the owner.
Such use shall not reduce Sears, Roebuck and Co. ECS Warranty
obligations.
Unapproved edd-on or modified parts may not be used to medilih/ or
repair a Sears, Roebuck and Co. engine, Such use voids this E_S
Warranty and shall 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 of such an unappreved add-on or modified part,
EMISSION-RELATED PARTS INCLUDE THE FOLLOWING:
1. Carburetor Assembly and its Internal Components
a) Fuel filter
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. Catalytic Muffler (if so equipped)
a) Muffler gasket (if so equipped)
b) Exhaust manifold (if so equipped)
5. Crankcase Breather Assembly and its Components
a) Breather connection tube
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
Page 6

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.994006
275A
416
4OO
s
135
130
120 119
'284A
e3700
101
126
125 /
3O
182185
178
52
.69
298
189_
193
"_310
€_',,,, 3O7
3OO
195
Page 7 181-1178-11

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.994006
Ref. Part
No. No.
137280
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 37140
40 35544A
40 35545A
40 35546
41 35541
41 35542
41 35543
42 35547A
42 35548A
42 35549
43 20381
45 36777
46 32610A
48 27241
50 37032
52 29914
69 *35261
70 34311E
72 36083
72A 28534
75 27897
80 30574A
81 30890A
82 30591
83 30588A
86 650488
89 611004
90 611112
92 650815
93 650816
100 34443B
101 610118
103 651007
110 37047
119 *37028
120 36825
125 37288
126 37289
130 6021A
135 35395
150 31672
151 31673
Ref.
Part Name No.
Cylinder (Incl. 2,20 & 150) 151A
Dowel Pin 169
Breather Element 172
Breather Ass'y. (Incl. 6 & 12A) 174
Breather Tube 178
Breather Cover & Tube (Incl. 12B) 182
Breather Tube Elbow 184
Washer 185
Governor Rod (Incl. 14) 186
Governor Lever •, 189
Governor Lever Clamp 190
Screw, Torx T-15, 8-32 x 19164" 191
Extension Spdng t192
Oil Seal 193
Crankshaft 194
Piston, Pin & Ring Set (Std.) 195
Piston, Pin & Ring Set (.010" OS) 200
Piston, Pin & Ring_Set (.020" OS) 202
Piston & Pin Ass'y. (Std.) (Incl. 43) 203
Piston & Pin Ass'y. (.010" OS) (Incl. 204
43) 205
Piston & Pin Ass'y. (.020" OS) (Incl. 207
43) 209
Ring Set (Std,) 215
Ring Set (.010" OS) 223
Ring Set (,020" OS) 224
Piston Pin Retaining Ring 238
Connecting Rod Ass'y. (Incl. 46) 239
Connecting Rod Bolt 241
Valve Lifter 245
Camshaft (NCR) 250
Oil Pump Ass'y. 260
Mounting Flange Gasket 261
Mounting Flange (Incl. 72 thre 262
83,3O6) 275
Oil Drain Plug 275A
Oil Drain Plug
Oil Seal 277
Governor Shaft 284
Washer
Governor Gear Ass'y, (Incl. 81) 284A
Governor Spool 285
Screw, 1/4-20 x 1-1/4" 287
Flywheel Key 290
Flywheel 292
Belleville Washer 298
Flywheel Nut 300
Solid State Ignition 301
Spark Plug Cover 305
Screw, Torx T-15, 10-24 x 15/16" 306
Ground Wire 307
Cylinder Head Gasket 309
Cylinder Head
Exhaust Valve (Std.) (Incl. 151 )
Intake Valve (Std,) (Incl. 151)
Screw, 5/16-18 x 1-1/2"
Resistor Spark Plug (RJ19LM)
Valve Spring
Valve Spring Cap
Part
No,
40017
*36783
36784
30200
29752
6201
*26756
36785
34337
650839
35831
35015B
34966
34965
32309
610973
35727
36482
31342
651029
651019
34336
30200
32410
650451
*36786
650932
*34338
35797
35066
35065
36980
30200
650831
36837A
36838A
650988
36663
650821
135000A
'650926
29774
26460
28763
36916
36246
35647
*36996
35499
650562
PartName
Intake Valve Seal
Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-28
Screw, 1/4-28 x 7/8"
Carburetor To Intake Pipe Gasket
Intake Pipe
Govemor Link
Screw, 1/4-20 x 3/8 •
Brake Lever
S.E. Brake Bracket (Incl. 195)
Brake Control Link
Brake Spdng
Retaining Ring
Terminal
Control Bracket (Incl. 202 thru 205)
Compression Spdng
Compression Spdng
IScrew, Torx 1"-10, 5-40 x 7/16'
i Screw, Ton<"1"-10,6-32 x 41/64"
Throttle Link
Screw, 10-24 x 9/16"
Control Knob
Screw, 1/4-20 x 1•
Intake Pipe Gasket
Screw, 10-32 x 49/64 •
Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
Blower Housing
Screw, 10-24 x 9/16"
Screw, 1/4-20 x 1/2"
Muffler
Spark Arrestor Muffler (Optional)
(Incl. 284, 284A, 416 & 417)
Screw, 1/4-20 x 2-5/16"
Muffler Deflector (Incl. 284A)
(Optional)
Screw, 10-32 x 1/2" (Optional)
Starter Cup
Screw, 8-32 x 21/64"
Fuel Line
Fuel Line Clamp
Screw, 10-32 x 35/64"
Fuel Tank (Incl. 292 & 301)
Fuel Cap
Oil Fill Tube
"O"-Ring
"O'-Ring
Screw, 10-32 x 3/8"
*IndicatesPartsIncludedin
GasketSet, Ref. No. 400.
Page 8 181-1178-11

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.994006
Ref. Pad
No. No.
310 35648
313 34080
325 37152
357 36412
370A 36261
370B 35167
3700 37199
370K !36695
380 640156
390 590737
Pad Name
Dipstick
Spacer
SpringClip
Starter Rope Retainer
Lubrication Decal
Control Decal
Primer Decal
Starter Decal
Carburetor(Incl. 184)
Rewind Starter
(NOTE: This engine coul_l have
i been built with 590694 starter).
Ref. Pad
No. No.
400 37029A
416 36065
417 650821
9O0
9OO 1181-1178-11
PartName
GasketSet (Incl. Items Marked*)
Spark ArrestorKit (Incl.417)
(Optional)
Screw, 10-32 x 1/2" (Optional)
ReplacementEngine750814A, order
from 71-999
ReplacementShortBlockNONE
Operator'sManual
*Indicates Parts Included in
Gasket Set, Ref. NO. 400.
RPM High 2700 to 3000
RPM Low 2400 to 2700
CARBURETOR NO. 640156
I
Ref. Pad
No. No. Pad Name
640156
1 631615
2 631767
4 *631184
5"631183
6 64O070
7"650506
16 631807
17 651025
18 630766
20 640016
20A 640053
25 631867
27 *631024
28 632019
29 "631028
30 *631021
31 631022
35 36045A
36 632735
38A 632766
37 *632547
40 640157
44 27110A
47 *630748
48 (631027
60 632760
Carburetor (Incl. 184 of Engine Parts
List)
Throttle Shaft & Lever Assembly
Throttle Return Spdng
Dust Seal Washer
Dust Seal (Throttle)
Throttle Shutter
Shutter Screw
Fuel Fitting
Throttle Crack Screw/Idle Speed Screw
Tension Spring
Idle Rsstdctor Screw
Idle Rsstdctor Screw Cap
Float Bowl
Float Shaft
Float
Float Bowl "O" Ring
Inlet Needle, Seat, & Clip (Incl. 31)
Spring Clip
Primer Bulb/Retainer Ring
Main Nozzle Tube
Carburetor Tube
"O" Ring, Mz_mNozzle Tube
High Speed Bowl Nut
Bowl Nut Washer
Welch Plug, Idle Mixture Well
WeLch Plug,, Atmospberic Vent
Repair kit (Incl. Items Marked *)
Page 9 181-1178-11

REWIND STARTER NO. 590737
/
]3
Ref. Part
NO. No. Pert Name
590737
3 590740
6590616
7590617
8 590618A
11 590687A
12 590535
13 590701
14 590760
Rewind Starter
Retainer
Starter Dog
Dog Spring
Pulley & Rewind Spring Ass'y
Starter Housing Ass'y (40 degree
grommet)
Starter Rope (Length 98" x 9/64"
dia.)
Starter Handle
Spring Clip
STARTER NO. 590694
/
13
12
O
(_m 34
B_ 5
R_, Part
No. No. Pert Name
I
2
3
4
5
6
7
8
11
12
13
590694
590599A
590600
590696
590601
590697
59O698
590699
590700
590695
590535
590701
Recoil Starter
Spdng Pin (Incl. 4)
Washer
Retainer
Washer
Brake Spring
Starter Dog
Dog Spring
Pulley & Rewind Spdng Ass'y,
Starter Housing Ass'y. (40 degree
grommet)
Starter Rope ( 98" x 9/64" dia.)
Starter Handle
Page 10 181-1178-11

, .ARS
operator's
manual
MODEL NO. 143.99400_
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 can be found on a decal on the blower housing
(See Figure 1). Always mention the Model Number when request-
ingservice or repair parts for your Craftsman Engine.
Allparts listed herein may be ordered from any SEARS, ROE-
BUCK AND CO. or SEARS CANADA, INC. retail or catalog store.
Ifthe parts you need are not stocked 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. Th'ePART NUMBER
2. The PART DESCRIPTION
3. TheMODELNUMBER
4. The NAME OF ITEM- ENGINE
"YourSearsmerchandise hasaddedvalue when youconsiderthatSearshas
service unitsnationwide staffedwithSears trainedtechnicians..,professional
techniciansspecificallytrainedon Sears products,havingthe parts,toolsand
equipmenttoinsurethatwe meetourpledgetoyou...we servicewhatwesell."
,i
Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA
181-1178-1