Craftsman 143.991004 User manual

SEARS
operator's
manual
MODE_L NO. 143.991004
SOLID STATE IGNITION
CAUTION:
Read RULES for
Safe OPERA:IION
and INSTRUCTIONS
Carefully
ENGINE
•Operating
•Maintenance
•Repair Parts
A California Proposition65 WARNING: Thoo._neexhaust fromthis product contains chemicals
known to the State of California tocause cancer, birth defects or otherreproductiveharm.
Sold by SEARS, ROEBUCK AND _O., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANAD A
Printed in U.S.A. 3-1-9p 181-1192-11

OIL FILL PLUG AND DIPSTICK SCREEN
MODELAND
D.O.M. DECAL
LEVERS & LINKAGE
SPARK PLUG WIRE
SPARK PLUG'
MUFFLER OIL D
PLUG
. : Figure 1
,_IL THIS S'MBOL POINTS OUTIMPORTANTSAFETY INSTRUCTIONS WHICH IF NOT FOLLOWEDCOULDENDANGERTHE ,_hb
PERSONALSAFETYAND/OR PROPERYTOF YOURSELFAND OTHERS. READAND FOLLOWALL INSTRUCTIONS IN
, THIS MANUAL AND ANY PROBID_ED.WJTI.i'_TH_.EqUIpMENT ON WHICH THIS ENGINEIS USEDBEFOREATTEMPTING
TO OPERATEYJ)UR_CRAFTSMAN'E"NG1NE" " " .... - - "....
I,,osoo--O.SM,,,,,,, ® mnB
ON THE ENGINE: FAST SLOW STOP OFF CHOKE FULL
ENGINES WHICH ARE CERTIRED TO COMPLY WITH CALIFORNIA AND
U.S, EPA EMISSION REGULATIONS FOR ULGE ENGINES: Are certifiedto
operate on regularunleaded gasoline. 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, YOU WILL NEED THE FOLLOWING:
(_ A CLEAN, HIGH QUALITY, DETERGENT OIL.
Be sure originalcontainer is marked:
A.P.I. service "SF'=-'SJ".
FOR SUMMER (ABOVE 32°F;0°C) USE SAE 30 OIL
Using muitigradeoil will increase oil consumption.,
FOR WINTER (BELOW 32°F;0=C) USE SAE 5W30 OIL.
(SAE lOW isan acceptable substitute.)
DO NOT USE SAE 10W40 OIL
OIL SUMP CAPACITY: 32 ounces (2 pints).
(_ .94 |iter
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). Gasolinecontaining upto 10% ethanol or
grain alcohol ("Gasohoi'), or up to 15% M'I'BE (Methyl Tertiary
ButylEther), may be used butrequiresspecial care when engine
is unusedfor extended periods.
Sea "STORAGE" instructionco Page 4.
NOTE: Use clean oil and fuel and store in approved, clean
covered containers. Use clean till funnels.
Never use "stale"gasolineleftoverfrom lastseasonor storedfor
long periods. Page 1
IMPORTANT
KEEP THIS MANUAL HANDY AT ALL TIMES FOR FUTURE
REFERENCE. READ IT CAREFULLY AND FAMILIARIZE
YOURSELF WITH THE OPERATING, MAINTENANCE AND
SAFETY INSTRUCTIONS. THIS MANUAL ALSO CONTAINS A
COMPLETE PARTS LISTING.
"BEFORE STARTING
_JJ READALLINSTRUCTIONS PROVIDED WITH THE EQUIPMENT
ON WHICH THIS ENGINE IS USED.
(_) CHECK OIL LEVEL:
CAUTION: NEVER RUN ENGINE UNLESS OIL LEVEL IS
BE'PNEEN "FULL" AND "ADD" MARKS ON DIPSTICK.
CHECK OIL LEVEL OFTEN DURING ENGINE BREAK-IN,
NEVER RUN ENGINE UNLESS OIL RLL PLUG IS TIGHTENED
SECURELY INTO OIL FILL HOLE.
A. POSITION EQUIPMENT SO ENGINE IS LEVEL.
B. Clean area aroundoiltill plug (see Figure 1).
C. Remove oil fillplugand dipstick.
D. Wipe dipstick clean, insert it into oil fill hole and tighten
securely.
E. Remove oil till plug and check oil level. If level is not up to
"FULL" mark on dipstick, add recommended oil, until it is.
POUR SLOWLY. Wipe dipstickclean each time oil level is
checked.
DO NOT FILLABOVE "FULL"MARK ON DIPSTICK.
F. Replace oil tillplugand tighten securely.
181-1192-11

BEFORE STARTING (Continued)
TO ENSURE ADEQUATE OIL SUPPLY:
_'k G. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG I
AND KEEP IT AWAY FROM SPARK PLUG. I
H. Crank engine a few timeswith starter.
,1_ NOTE -DO NOT USE MOWER CU'I'I"ING BLADE OR ANY
OTHER A'rrACHMENT ON POWER TAKE-OFF END OF
ICRANKSHAFT TO CRANK ENGINE.
I. Re-check oil level per instructionsC, D, E and F.÷
J. Connect spark plug wireto spark plug.
See =MAINTENANCE" section for any futureoil level and oil
change instructions(see Page 2). !
(_ FILL FUEL TAN K withgaso,ne asspecifiedinthe preceding
"OIL & FUEL RECOMMENDATIONS," item 2.
NEVER MIX OIL WITH GASOLINE
Never useUstale"gasoline leftover fromlastseasonor storedfor
long periods.
_NEVER FILL FUELTANKINDOORS. NEVER FILL FUELTANK
WHEN ENGINE IS RUNNING OR HOT. DO NOT SMOKE WHEN
FILLING FUEL TANK.
_k NEVER FILL FUEL TANK COMPLETELY. FILL TANK TO 1/2"
BELOW Bo'rroM OF FILLER NECK TO PROVIDE SPACE
IFOR FUEL EXPANSION. WIPE ANY FUEL SPILLAGE FROM
ENGINE-AND EQUIPMENT BEFORE STARTING ENGINE.
._1_ ANY LIQUEFIED PETROLEUM (LPG) OR NATURAL GASl
m I-FUEL S_fSTEM MUST BE LEAKPROOF AND MEET ALL I
APPLICABLE CODES AND REGULATIONS.
(_) CHECK THE FOLLOWING:
_ILA. BE SURE EQUIPMENT IS IN NEUTRAL GEAR WITH I
CLUTCHES, BELTS, CHAINS AND SAFETY SWITCHESI
DISENGAGED. (FOLLOW EQUIPMENT I
MANUFACTURER'S INSTRUCTIONS). THIS SHOULD
POSITION.PLACEANY SAFETY SWITCHES IN SAFE STARTING
B. Be surespark plugwire is attachedto spark plug(see Figure
1).
C. Be sure any ignitionswitchon angine orequipment isin ON,
RUN or START position.
STARTING
,_ NEVER RUN ENGINE INDOORS OR IN ENCLOSED, POORLY
VENTILATED AREAS. ENGINE EXHAUST CONTAINS
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 EQUIPMENT.
,_BE SURE AIR INTAKE SCREEN (see Fig. 1) IS SECURELY IN
PLACE TO AVOID CONTACT WITH MOVING PARTS.
_WARNING TEMPERATURE OF MUFFLER AND NEARBY
AREAS MAY EXCEED 15(PF (65°C). AVOID THESE AREAS.
NOTE: Ifangine ismmotely controlled,seeequipmentmanufacturer's
instructionsforremotecontrolpositionswhichcorrespondto
engine controlpositionsin Figure 2.
ELECTRIC STARTER 12 VOLT D.C.:
A. Move anglne control lever(see Figure 2) or equipmentcontrol to
CHOKE or START.
NOTE: IF RESTARTING A WA'RM ENGINE, AFTER A SHORT
SHUTDOWN, MOVE CONTROL TO "FAST" INSTEAD
OF "CHOKE."
STARTING (Continued)
B. Press starter button or tum ignition switch key per equipment
manufacturer's instructionsto crank engine untilit fires.
C. When engine starts move control to FAST and then to RUN
RANGE.
D. Ifengine falters, move control to CHOKE, thento FAST and then
to RUN RANGE.
NOTE: If engine fires, but does not continue to run, movecontrol
to FAST and crank engine untilitstarts.
E. If engine stilldoes not start, move control toCHOKE and repeat
instructionsB and C again.
OPPING
Move equipmentcontrolorany ignitionstop switchonengineto
STOP or OFF (see equipment manufacturer's instructions).
(_ AFTER ENGINE IS STOPPED:
,_A. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG
AND KEEP IT AWAY FROM SPARK PLUG.
_. TURN IGNITION SWITCH KEY (IF SO EQUIPPED) TO
"OFF" POSITION AND REMOVE KEY FROM SWITCH.
THIS WILL REDUCE THE POSSIBILITY OF
UNAUTHORIZED STARTING OF ENGINE WHILE
EQUIPMENT IS NOT IN USE.
NEVER STORE ENGINE WITH FUEL IN TANK 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 GAS
APPLIANCE.
MAINTENANCE
_WARN NG TEMPERATURE OF MUFFLER AND NEARBY
AREAS MAY EXCEED 150°F (650C). AVOID THESE AREAS. J
_.) CHECK OIL LEVEL:
Check oillevel everyfive (5) operatinghoursoreach time engine
isused.See "2CHECK 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 ifoperated in extremely
dusty or dirty conditions.
_' Chanoe oil while enoine isstillwarm from recent runnine.
,_A. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG
AND KEEP IT AWAY FROM SPARK PLUG.
B. Positionequipment so engine oildrainplugis lowestpoint on
engine.
C. Remove oil drain plug and oilfill plugto drain oil.
D. Replace oil drain plug and tighten securely.
E. Fill oil sump with recommended oil. See "OIL & FUEL
RECOMMENDATIONS" and "CHECK OIL LEVEL" on Page
I.
F. Replace oil fillplug and tightensecurely.
G. Connect spark plugwire to spark plug.
CONTROLBRACKET CONTROLLEVER-INFAST
POSITION(HOLEINBRACKETIN
LINEWiTH SLOTON LEVER)
REMOTECONTROL
'_ _CHOKE
IDLE
Page 2 Figure 2 181-1192-1

MAINTENANCE (Continued)
(_) AIR CLEANER:
IMPORTANT: NEVER RUN ENGINE WITHOUT COMPLETE AIR
CLEANER INSTALLED ON ENGINE.
A. TO SERVICE FILTER(S) (see Figure 3):
1. FOAM FILTER:
Clean and re-oilevery three(3) monthsorevery 25operating
hours. Clean and re-oil daily if used in extremely dusty
conditions.
a. Wash in water and detergent solution and squeeze
(don't twist)untilall dirt is removed.
b. Rinse thoroughlyinclear water.
c. Wrap in a clean cloth and squeeze (don't twist) until
completelydry.
d. Saturate with engine oil and squeeze (don't twist) to
distributeoil and remove excess oil.
2. PAPER OR FOAM/SCREEN RLTERS:
DO NOT A'rFEMPT TO CLEAN OR OIL FILTER.
Replace once a year or every 100 operating hours, more
often if used in extremely dusty conditions.
Replacement filters are available at any nearby Sears
Rcebuck_and Co. (or Seam Canada, Inc.)_ervice Center.
B. TO REMOVE AND INSTALL FILTER(S):
1. Remova wing nutsand cover.
2. Slide FILTER A Off.l_it.TF?l_l
B.
3. Inspect tilter(s) fordiscoloration or dirt accumulation.If either
is present, service per preceding "TO SERVICE FILTER(S)"
instructions.
4. Remove nuts and FILTER B. Discard FILTER B and nuts(if
service is necessary).
5. Clean inside of cover and body thoroughly.
6. Install new FILTER B and new nuts. Tighten nuts fingertight
and then turnone (1) morecomplete turn.
7. Slide foam filter over paper tilter.
8. Installcover and wing nuts. Tighten wing nuts.
COVER
\
WING NUTS
FILTER B
.RLTERA
6
J
Figure3
MAINTENANCE (ConUnued)
(_ SPARK PLUG (see Figure 4):
This spark ignition system meets all requirements of the
Canadian Interference-Causing EquipmentRegulations.This
engine complies with all currentAustralianand New Zealand
limitationsregardingelectromagneticinterference.Checkspark
plugyeady orevery 100 operating hours.
A. Clean area around spark plug.
S. Remove and inspectspark plug.
C. Replace spark plugifelectrodesare pitted,bumed orporcelain
is cracked. For replacement use Champion RJ-19LM or
equivalent.
NOTE: A resistorspark plug must be used forreplacemonL
D. Check electrode gapwithwirefeeler gauge andset gapat .030
if necessary.
E. Installspark plug, tighten securely.
ELECTRODES
:.030 GAP
Figure4
_) ALTERNATOR AND BATTERY (ifsoequipped):
/L ALTERNATOR:
For electrical problems such 8s inoperative starter or
dischargedbattery,see your nearbySears Roebuckand Ca.
(orSears Canada, Inc.) Service Center forfusereplacement
(ifso equipped), maintenance and repairs.
B. BATTERY:
1. Whanearvicin9 battery,always connect cablssto battery
exactly as they were before removal (ground cable to
batterynegative [- orneg.] post). Ifincorrecgyconnected,
alternator won't charge battery. Ifthishappens, see your
Sears Roebuckand Co. (orSears Canada, Inc.) Sewise
Center.
2. Never expose engine ignitionsystemtobatterypower. If
battery cable or any live wire contacts ignitionsystem
groundwire, engine ignitionsystemmay be damaged.
3. Ifexternalbatterycharger is used, disconnectpositive(+
or pos.) cable frombatteryto prevent possibledamage.
4. See battery manufacturer'sinstructions forservice end
storage.
I_) COOLING SYSTEM;
IMPORTANT: Frequently remove any grass clippings, dirtand
debrisfromcoolingfins, air intakescreen and levers and linkage
(see Figures1 and 5), This willhelpensure adequate coolingand
correct engine speed.
AIRINTAKESCREEN
Figure5
(_ CHECK ENGINE AND EQUIPMENT OFTEN FOR LOOSE NUTSJ
_lL BOLTS AND ATTACHMENTS AND KEEP THESE ITEMS_
TIGHTENED. /
Page3 t81-1192-11

ADJUSTMENTS
DO NOT MAKE UNNECESSARY ADJUSTMENTS. FACTORY
SETTINGS ARE SATISFACTORY FOR MOST APPLICATIONS AND
CONDITIONS. IF ADJUSTMENTS ARE NEEDED, PROCEED AS
_LLOWS:
CARBURETOR (see Figure 6):
If you think your carburetor needs adjusting, see your nearest
SEARS, ROEBUCK AND CO. (OR SEARS CANADA, INC.)
SERVICE CENTER. Engine performance should notbe affected
at altitudes upto 7,000 feet. For operation at higherelevations,
contact your nearest SEARS, ROEBUCK AND CO. (OR SEARS
CANADA, INC.) SERVICE CENTER.
CARBURETOR_ _
BOWLDRAIN
Figure 6
CONTROLBRACKET CONTROLLEVER-IN FAST
POSITION (HOLEIN BRACKETIN
LINE WITH SLOT ON LEVER)
ABLECLAMP
LAMPSCREW
_CHOKE
FAST
Figure 7
(_) REMOTE CONTROL (see Figure7):
For satisfactory engine performance, engine and equipment
controls must be adjusted properly. To check engine control
adjustments, proceed as follows:
A. Set equipment contro/at FAST or HIGH SPEED and keep in
this position.
B. Loosenclamp screw so remote control cable can be moved
in cable clamp (do not remove cable clamp from control
bracket or disconnect remote control cable from engine
controllever).
C. Move engine controlloverinto FAST and holdInthisposition.
D. Tightan clampscrew sscuraly so cable clamp will holdcable
casing in placewhen equipment controlis used.The engine
shouldnow runat the desiredspeed when equipment control
is set at FAST, and should choke engine when in CHOKE.
ADJUSTMENTS (Continued)
If additional control adjustments are necessary, contact your
nearby Sears Roebuckand Co. (orSears Canada, Inc.) Service
Center.
(_ ENGINE SPEED:
_NEVER TAMPER WITH ENGINE GOVERNOR WHICH ISl
FACTORY SET FOR PROPER ENGINE SPEED. l
OVERSPEEDING ENGINE ABOVE FACTORY HIGH SPEED I
SETTING CAN BE DANGEROUS. I
CHANGING OF ENGINE-GOVERNED SPEED WILL VOID
ENGINE WARRANTY.
STORAGE
_NEVER STORE ENGINE WITH FUEL IN TANK INDOORS OR
INENCLOSED, POORLY VEN'nLATED AREAS, WHERE FUEL I
FUMES MAY REACH AN OPEN FLAME, SPARK OR PILOT I
LIGHT AS ON A FURNACE, WATER HEATER, CLOTHES
DRYER OR OTHER GAS APPL ANCE.
IFENGINEISTOBEUNUSEDFOR30DAYSORMORE,PREPARE
_FOLLOWS:
DRAIN FUEL SYSTEM:
Remove allgasolinefromcerburetor and fueltank topreventgum
deposits from forming on these parts and causing possible
malfunction of engine.
DRAIN FUEL INTO APPROVED CONTAINER OUTDOORS,
,_ AWAY FROM OPEN FLAME. BE SURE ENGINE IS COOL DO
INOT SMOKE.
Run engine untilfuel tank isempty and engine stops due tolack
offuel.
NOTE: Fuel stabilizer (such as STA-BIL) is an acceptable
aitemative in minimizingthe formation of gum deposits during
storage. Add stabilizer to gasoline in fuel tank or storage
container. Always fallow mix ratio found on stabilizer container.
Run engine at least 10 minutes after adding stabilizer to allow it
to reach carburetor.
(_) CHANGE OIL:
Change oil ifithasnotbeen changed inthe lastthree (3) months.
See "CHANGE OIL" instructionsin"MAINTENANCE" section.
OIL CYLINDER BORE:
A. Remove sperkplug. Squirtone (1) oz. (30 ml)ofcleanengine
oil intospark plughole.
B. Cover spark plug hole with a reg.
C. Crank engine over, slowly,several times.
,_ AVOID SPRAY FROM SPARK PLUG HOLE WHEN ICRANKING ENGINE OVER SLOWLY.
D. Installspark plug. Do not connect spark plugwire.
(_ CLEAN ENGINE:
Remove any clippings,dirt, or chaff from extedor of engine.
GENERAL
Justas yourautomobileneeds professionalmechanicalmaintenance
fromtime to time, sodoesyour Craftsmenengine. Replacement ofthe
spark plug and air cleaner is made necessary by NORMAL use.
Professional Air-Cooled Engine Service is as dose as your nearest
Sears Roebuck and Co. (or Sears Canada, Inc.) Service Center.
A yearly chsck-up or tune-up by Sears is a good idea to avoid
breakdowns or delay.., do it at the end of the season, then you'_re
[eady forthe next. We even prepare it for storage foryou.
Page4 181-1192-11

TROUBLESHOOTING
THE FOLLOWING MAY HELP AVOID A DELAY IN YOUR WORK OR
SAVE THE EXPENSE OF A SERVICE CALL.
iENGINE FALLSTO START OR STARTS WITH DIFFICULTY
CAUSE REMEDY
Controlsnot in start position.
Spark plugwire disconnected from spark plug.
Spark plug fouled.
Spark plug porcelain precked÷
Insufficientfuel;
Water or dirtin fuel.
Impropercarburetoradjustment
Move ENGINE CONTROL or equipmentcontrol to "HI"or
START postion. See "STARTING" instructionsin this
manual.
Connect SPARK PLUG WIRE to SPARK PLUG.
Remove SPARK PLUG and clean it. See "SPARK
PLUG" instructionsin "MAINTENANCE" section In this
manual.
Instal! new spark plug.
Fill FUEL TANI_ per "BEFORE STARTING" instructions.
Drain FUEL TANK end re-fill withclean, freshgasoline.
See "BEFORE STARTING" instructionsinthis manual.
Adjust carburetor (ifapplicable). See "ADJUSTMENTS"
section in this manual.
ENGINE LACKS POWER
CAUSE
Dirtyair cleaner.
Impropercarburetor adjustment.
Lack of lubricaiton.
..
ENGINE MISSES UNDER LOAD
REMEDY
Replace or clean aircleaner per 'AIR CLEANER"
instructionsin "MAINTENANCE" section inthis manual.
Adjustcarburetor (ifapplicable).See 'ADJUSTMENTS"
sectioninthismanual.
Fill oil sump to proper level. See "BEFORE STARTING"
instructionssection in this manual.
CAUSE
Spark plugfouled.
Sparkplugporcelaincracked.
Impropersparkpluggap.
Impropercarburetor adjustment
REMEDY
Remove SPARK PLUG and clean it. See 'SPARK
PLUG" instructionsin "MAINTENANCE" section in this
manual.
In=allnew SPARK PLUG.
Regap SPARK PLUG electrodes. See "SPARK PLUG'
instnJctlonsin "MAINTENANCE" sectionin this manual.
Adjust carburetor (if applicable). See "ADJUSTMENTS"
section in this manual.
Page5 181-1192-11

SEARS, ROEBUCK AND CO.
Federal and California Emission Control Systems Limited Warranty
Utility and Lawn and Garden Engines
CALIFORNIA & US EPA EMISSION CONTROL
WARRANTY STATEMENT
The U. S. En_ronmental Protection Agency {'EPA"), the California Air Resources
Board ('CAR B")and Sears, Roebuck and Co. am pleased to explain the Federal and
Caltfomla Emission Control Systems Warranty on your new utility orlawn and garden
equipment engine. In Calltomle, new 1995 and later utll'dll,yand lawn and garden
equipment engines must be designed, builtand equipped te meet the State's
stdngent anlt-smng standards. In other states, new 1997 and later modal year
engines must be designed, built and equipped, at the tme of sale, to meetthe U.S.
EPA regulations forsmall non-r_ad engines. Sears, Roebuck and Co. willwarrant
the emission conta_ system on your utilityor lawn and garden equipment engine for
the periods of time listed below, provided there has been no abuse, neglect.
unapwoved modltk:aticn,or improper malnter_nce of your utilityor lawn and garden
equlpment engine.
Your emission controlsystem may k_cludeports such _the carburetor, ignition
system and exhaust system. Also instuded may be the compression release system
and other emlaskm-mlated assembles.
Where a warrantable condition exists, Sears, Roebuck and Co. will repair your utility
c_ lawn and garden equipment engine at no cost to you for diagnosis, parts and labor.
MANUFACTURER'S EMISSION CONTROL SYSTEM
WARRANTY COVERAGE
Emlaalon contrbl systems on 1995 and later modal year Caltomla ofilty and tawn and
ga,-den equipn_nt engines am wananteq teetwo yearn as beminafter noted, in other
states. 1997 andlater modalye_'engthes,, am alsowarraateq for twoyears, if, during
suchwananty bedod, any em,..ss_on-mlatedpad on yourengine isdafectve in
matedale or workmanship, the part will be repaired o_"teqlaced by S_us, P,oabuck
and CO.
OWNER'S WARRANTY RESPONSIBILITIES
As the utti_'or lawn and garden equipment engine owner, you are responsible for the
rlarmance of the required maintenance r_sted inyour Owner's Manual, but Sears,
_: _eo_uck aed CO. will not deny warranty solelydue te the lack of recstpta or fo_your
failure to provide written evidence of the performance of all scheduled maintenance.
As the utilityor lawn and garden equipment engine owner, you should, however, be
aware that Sears, Roebuck and Co. may deny you warranty coverage if your utilityor
lawn and garden equipment or a part thereof has fallad due to abuse, negleof,
improper maintenance orunepproved modifications.
You are respor_siblafor beDsentng your utilityor lawn and garden equlpmest engine
to aSears, Roebuck and Co. Authorized Setvtae Outlet as soon as aproblem exists.
The warranty repairs should be completed in areasonable amount of time, n_ to
exceed 30 days.
Warranty ser_ce can be ananged by contacting either a Sears, Roebuck and Co.
Authorized Service Outlet, orby contacting Sears, Roebuck and Co. at 1-800-473-
7247.
IMPORTANT NO'RE
This warranty statement explains your rights and obl_a_ons under the Emission
Control System Warran_ ('ECS Warranty") which is provided to you by Sears,
Roebuck and Co. pursuant to California law. S_e also the Sears, Roebuck and Co.
Umiteq Warranties for Sears, Roebuck and Co. which is enclosed therewith on a
separste sheet and also is provk_ to you by Seers, Roequck and Co. Tbe ECS
Warranty abplles only to the emisalonconth_lsystem of you,"new engine. Totbe
extent that there is any conflict interms between the ECS WaNanantyand the Sears,
Roebuck and CO.Warranty, the ECS Warranty shall apply excab_in any circumstanc-
es inwhich the Sears, Roebuck and Co. Wan an_ rnay _ a ldnger warranty
period. Both the ECS Warranty and the Sears, Roabuck and CO. Warranty describe
importent rights and obligations.wlthrespect to your new engine.
Warranty service can only be performed by aSears, Roebuck and CO.Authorized
Service Outlet. At the time of requesting warranty sewice, evidence must be
presented of the date of sale to the original pumhaser. The purchasershall pay any
charges for maldng service ca,s and/or for transpo_ng the products toand fTOmthe
place whom the inspectionand/or warranty wed_isbet foctned. The p_chaser shall
De responsible for any damage or loss incurred inconnection withthe transportation
of any engine orany pstt(s) thereof supm_ed fo_inspeclto_ angler warrantywork.
If you have any questons regardingyour warranty rights and respenall_ltbes,you
should contact Sears, Roebuck and Co. at 1-800-473-7247.
EMISSION CONTROL SYSTEM WARRANTY
Emtas_n Control System Warranty ('ECS Warranty_ for 1995 and later model year
Califc<nlautilityand lawn and garaen equipment engines (forother states, t997 and
later model year entries):
A. APPLICABILITY: This warrant'/shall apply to 1995 and later model year
California utllty and lawn and gamen equipment engines (forother states, 1997 and
later modal year en_nes). The ECS Warrant'/Period shall begin on the date the new
engine or equipment Is deliVered to its odginal,end-usepurchaser and shall continue
for 24 consecutive months thereafter.
B. GENERAL EMISSIONS WARRANTY COVERAGE: Seam, Roebuck and CO.
warrantsto the original, end.use purchaser of the new engine ot equipment and to
each subsequent purchaser that each of itsutilityand lawn and garden equipment
engines is:
1. Designeq, builtand equipped so as te conform with all applicabla regulations
adopted by theAir Resources Board pursuant to its authority inChapters 1
and 2, Part 5, DMsion 26 of the Heaffh and Safety Code, and
2. Free flora defects in materials and workmanship whk;h, at any time dud_ the
ECS Warranty Pedod, will cause a warranted emP'_sions-ndatedpart to fall to
he identical in all matedal respects to the pad as described in the engine
manufacturefs appltcaben for certification.
C, The ECSWarrantyonlypertainsto emissions-relateddartsonyourengine,as
follows:
1. Anywan'anted,er_sslans-relatedpartswhichate natscheduledfor
replacementas requiredmaintenanceIntheOwner'sManualshaltbe
warrantedforthe ECSwarrantyPeriod.ifany suchpadfailsduringthe ECS
WanantyPabod,if shallbe redalredorreplaceqbySears,RoabuckandCO.
accordingtoSubeecton4 beinw. Anysuchpartrepa!reqor rabtecedunder
theEC3 Warrantyshallbewarrantedforany remainderoftheECSWarranty
Period.
2. Any warranted, emisalons-ralateq gart which is sofleduleq onlyfor regular
I_ _ I_pedfled in the Owner's Manual shall be watmated foe the ECS
Warr_ Pabed. A mtement ta _ch wriften _ to the effeof of
"re_ or reptece as necess_y', shall not reduce the ECS Warranty Pedod.
Any sush pad repalreq or replaced under the ECS Wan-anty shstlbe
wananteq for the rernalndet of the ECS Warranty Pedod.
3. Anywarranteq,emlaalons-rstatedbertwhkthisschedofedforreplacemantas
requiredmaintenanceintheOwner'sManual,shallbewarrantedforthe
bedodoftane WIortethetirstscheduledreplacementgairdfor_at parL Ifthe
parHallspriortothefirstscheduladreplacement,thepartsh_ bempeiredor
replacedbySears,RoebuckandCO.accordingtoSubsection4below. Any
oucher!!salons-relatedpartrepairedor replacedundattheECSWarranty,
shallbewarrantedfortheremainderoftheECS WarrantyPerladpriortothe
firstscheduledreplacementpointforsuchemisalons-ralateqpart.
4. Repair or replacement of any warranted, emisalons-ralateq part under thle
ECS Warranty shall be performed at no charge to the owner at a Sears,
Roebuck and Co. Authorized Setvioe OutlaL
5. The owner shall not be chergad for dlagnostta labor which laeds to the
dsterminatla_ that aapartcoveredby the ECS Wanandy is in fact defective,
provided that such diegno_tc workis pedorrned at a ,_ears, Roebuck and Co.
Authodzed Service Outlet.
6. Sears,RoebuckandCo.shellbeliablefordamagestootheroriginalengine
componentsorapprovedmodificationspro_dmatalycausedby afailureunder
warrantyofanemlsalon-relatedpartcoveredbytheECS Warranty.
7. Throughout the ECS Warranty Period, Seam, R_b_ck and Co. shall rnalntaln
a supply of warranted erblsalo_-related parts surf'dent to meet the expected
demand forsuch emisalo_-related parts.
8. Any Sears, Roebuck and CO. authodzeq and abp ed emisston-relateq
reglacemeat pad ma;/be used inthe berfonnanoe of any ECS Warraaty
maintenance or raba_rand will be prm_bed w_hout charge to the owner. Such
use shall not reduce Sears, Roebuck and Co. ECS Warranty ob_lgaltons.
9. Unapproved odd-on or modltiedparts may not be used to mndlty or repair a
Sears, Roebuck and Co. engine. Such use voids this ECS Warranty and shall
be sufficient groundsfor disallowing an ECS Warranty claim. Seam, Roebuck
and CO. shall not be Ilabla hereunder forfailures of any warranted parts of a
Seam, Roebuck and Co. engine caused by the use of suchan unapproved
odd-on or modlhndpad.
EMISSION-RELATED PARTS INCLUDE THE FOLLOWING:
1. CarburetorAssembly and itsInternal Components
!Fual tilter
Cerbundor gaskets
Intake pipe
2. Air Cleaner Assembly
a) Air filterelement
3. ignition System, inblud_:
a) spe_pl.g
b I niton module
4. Cota.lyUcMuffler Ofso eqUil_Oed)
a Mufflar gaskst 0f so equtobeo)
b Exhaust manifold (tiso equipped}
5. Crankcase Breather Assembly and its Components
a) Breather conneofkm tabe
Sears, Roebuck and Co., Hqffman Estates, IL 60179
Page 6
U.S.A. 7,22.97 E_A_ARB
181-1192-1!

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.991004
29o<_
i _......_298
261
347
263
e.......-93
286
262
151
126
40
41
j_
,258
234
.240
238
_,,.,,.325B
_t325A
18
280
277
395
Page 7 181-1192-11

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.991004
Ref.
No.
1
2
14
15
16
17
18
19
20
25
26
28
30
31
35
36
37
38
4O
4O
4O
41
41
41
42
42
42
43
45
47
48
5O
51
52
6O
62
63
65
66
68
69
7O
72
75
8O
81
82
83
84
86
88
89
9O
92
93
100
101
102
Part
No.
35421
27652
28277
35082
36494
29916
651028
36495
35319
35424
650561
30322
35429A
35327
29826
29918
29216
29642
35776A
35777A
35778A
"35773A
,35774A
35775A
35779
35780
35781
35772
36895
651033
34034
35381
35315A
31356
33273A
650760
28545
650128
650990
33356
*35317
35711A
31927
35319
35783
30590A
35378
30588A
29193
650833
31707A
32589
611093
650880
650881
35135
610118
651024
Part Name
Cylinder (Incl. 2 & 20)
Dowel Pin
Washer
Governor Rod
Governor Lever
Governor Lever Clamp
Screw, Torx %16, 8-32 x 3/8"
Extension Spring -_
Oil Seal
Blower Housing Baffle
Screw, 1/4-20 x 5/8"
Lock Nut, 8-32
Crankshaft
Counterblance Gear
Screw, 10-32 x 3/4"
Lock Washer
LockNut, 10-32
Retaining Ring
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& PinAss'y. (.020' OS) (Incl.
43)
Ring Set (Std.)
Ring Set (.010" OS)
Ring Set (.020" OS)
Piston Pin Retaining Ring
Connecting Rod Ass'y. (incl. 47)
Connecting Rod Bolt
Valve Lifter
Camshaft (MCR)
Counterbalance Weight
Oil Pump Ass'y.
Blower Housing Extension
Screw, 8-32 x3/8"
Grommet
Screw, 10-24 x 1/2"
Screw, TorxT-30, 1/4-20 X 15/32"
Greund Terminal
Mounting Flange Gasket
Mounting Flange (Incl. 72, 75 & 80)
Oil Drain Plug
Oil Seal
Governor Shaft
Washer
Governor Gear Ass'y. (Incl. 81)
Governor Spool
Retaining Ring
Screw, 1/4-20 x 1-3/16"
Spacer (Incl. 8!)
Flywheel Key
Flywheel
Lock Washer
Flywheel Nut
Solid State Ignition
Spark Plug Cover
Solid State Mounting Stud
Ref. Pad
No. No.
103 651007
110 35234
119 *36451
120 36449
123 33261
124 651031
125 27878A
125 27880A
126 34035
126 34036
127 650691
128 650690
130 650694A
135 33636
149 27882
149A 35862
150 27881
151 32581
169 "27896A
170 28423
171 28424
172 28425 "
173 35350
174 650128
178 29752
182 30088A
184 *33263
185 34926
186 33860
200 35956
203 36482
204 650777
207 35989
209 650902
210 27793
211 ', 28942
223 650378
224 "27915A
234 650825
238 650834
239 "33629
240 35538B
245 35403
245A 35404
250 35961
251 650886
260 36266
261 650788
Pad Name
Screw, Torx T-15, 10-24 x 15/16"
Ground Wire
Cylinder Head Gasket
Cylinder Head
Intake Pipe Brace
Screw, 1/4-20 x 9/16"
Exhaust Valve (Std.) (Incl. 151)
Exhaust Valve (1/32" OS) (Incl. 151)
Intake Valve (Std.) (Incl. 151)
Intake Valve (1/32" OS) (Incl. 151)
Washer
BelleviUeWasher
Screw, 5/16-18 x 2"
Resistor Spark Plug (RJ17LM)
Valve Spring Cap
Valve Spdng Cap
Valve Spring
Valve Spdng Keeper
Valve Cover Gasket
Breather Body
Breather Element
Valve Cover
Breather Tube
Screw, 10-24 x 1/3"
Nut & LockWasher, 1/4-28
Screw, 1/4-28 x 1°
Carburetor To Intake Pipe Gasket
Intake Pipe
Governor Link
ControlBracket (Incl. 203 &204)
Compression Spring
Screw, 6-32 x 21/32"
Choke Link
Screw, 10-32 x 7/16"
Conduit Clip
Screw, 10-32 x 318"
Screw, Torx %30, 5/16-18 x 1-1/8"
Intake Pipe Gasket
Nut & LockWasher, 1/4-20
Screw, 10-32 x 1-17/32"
Air Cleaner Gasket
Air Cleaner Body (Incl. 239)
Air Cleaner Filter (Incl. 234)
Air Cleaner Filter
Air Cleaner Cover
Wing Nut, 1/4-20
Blower Housing
Screw, 5/16-18 x3/4"
262
263
264
264A
265
29747B
35963
650990
650802
33272B
Screw, Torx T-40, 5/16-24 x 21/32"
Trim Ring
Screw, 5/16-18 x 15/32"
Screw, 1/4-20 x 5/8"
Cylinder Head Cover
*Indicates Parts Included in
Gasket Set, Ref. No. 400.
Page 8 181-1192-11

CRAFTSMAN 4-CYCLE ENGI NE MODEL:143.991004
Ref. Part Ref.
No. No. Part Name No.
276 40003 I Muffler 325A
276 31588 Locking Plate 325B
277 650729 Screw, 5/16-18 x 3-3/16" 326
281 33013 Starter Bubble Cover 347
282 650760 Screw, 8-32 x 3/8" 370G
286 35962 Cup & Screen 380
290 30705 Fuel Line 394,6,
292 26460 Fuel LineClamp 395
298 28763 Screw, 10-32 x 35/64"
300 33583B Fuel Tank (loci.292, 298 & 301 ) 400
301 36246 Fuel Cap 416
305 35574 Oil FillTube 900
307 35499 "O"Ring
308 35437 RII Tube Clip 900
310 35576 Dipstick
314 650873 Screw, 1/4-20 x 3/4"
315 611113 Alternator Coil (3 Amp) (IncL 321 -
323)
321 611161 Diode
332 610921 Connector Body
323 610922 Terminal
324 33177--_ .Tdm)inaP_
325 29443... :.Wire'Cltp
Part
No.
27275
34246
36210
650949
35274
640091A
650948
36680
36452A
34479A
181-1192-11
Part Name
Wire Clip
Wire Clip
Screen Plug
Screw, 10-32x9/16"
Oil Instruction Decal
Carburetor (Incl. 184)
Washer
Electdc Starter Motor (12 Volt)
(Optional)
Gasket Set (Incl. Items Marked *)
Spark Arrestor Screen Kit (Optional)
Replacement Engine 752329, order
from 71-999
Replacement Short Block 752312A,
order from 71-999
Operator's Manual
*Indicates Parts Included in
Gasket Set, Ref. No. 400.
RPM High 3250 to 3550
RPM Low 2000 to 2300
!
!Page 9 181-1192-11

CARBURETOR NO. 640091A
2o L 2o4s__
27 //// _'_36
Yx37 /
J,//" 25
@
Ref. Pert
No. No. Part Name
640091A
631776A
631970
*631184
"63t 183
640109
*650506
632580
632473
"631184
*631183
631881
632527
651025
630766
640027
64OO53
631887
*631024
632019
*631028
*631021
631022
640113
"632547
640128
27110A
"630748
*631627
632760
1
2
4
5
6
7
10
11
12
13
14
18
17
18
20
20A
25
27
28
29
30
31
36
37
4O
44
47
48
6O
Carburetor (Incl. 184 of Engine Parts List)
Throttle Shaft & Lever Assembly
Throttle Retum Spdng
Dust Seal Washer
Dust Seal ('l'hmttle)
Throttle Shutter
Shutter Screw
Choke Shaft & Lever Assembly
Choke Return Spdng
Dust Seal Washer
Dust Seal (Choke)
Choke Shutter
Fuel Fitting
Throttle Crack Screw/Idle Speed Screw
Tension Spdng
Idle Restdctor Screw
Idle Restdclor Screw Cap
Float Bowl
Roat Shaft
Float
Float Bowl "O"Ring
Inlet Needle, Seat & Clip (Incl. 31)
Spdng Clip
Main Nozzle Tube
"O" Ring, Main NozTJeTube
High Speed Bowl Nut
Bowl Nut Washer
Welch Plug, Idle Mlxtum Well :
Welch Plug, Atmospheric Vent
Repair kit (Incl. Items Marked *)
ELECTRIC STARTER MOTOR NO. 36680
15
iRef. Part
No. No. Part Name
36680 ElectricStarter (12 Volt)
1 33451 Dust Cover
2 33842 Retainer Ring
3 33430 Spring Retainer
4 33854 Anti-driftSpring
5 33432 Gear
6 35893 Nut & Retainer (Incl. No. 2)
7 33450 Lock Nut
8 35894 Ddve End Cap Ass'y
L9 35895 Armature
10 36699 Housing Ass'y
12 35896 Brush & Spdng Kit
14 35897 Thrust Washer
15 35898 Bolt, 10-32 x 4-11/64"
16 35899 End Cap & Brush Card Ass'y (Incr.
12, 14, 17& 18)
17 65016_ Washer
18 650864 Nut
20 650990 Screw, Torx T-30, 1/4-20 x 15/32
i
Page 10 181-1192-11

SEARS
operator's
manual
MODEL NO. 143.991004
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 blowerhousing
(See Figure 1). Always mentionthe Model Number when requesting
service or repair parts for your Craftsman Engine.
All parts listedherein may be ordered from any SEARS, ROEBUCK
AND CO. or SEARS CANADA, INC. retailor catalog store. Ifthe
parts you need are not stocked locally,your order willbe electroni-
cally transmittedto a Sears Repair Parts DistributionCenter for
expedited handling.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOL-
LOWING INFORMATION AS SHOWN IN THIS LIST.
1. The PART NUMBER
2.
.°_ 3.
The PART DESCRIPTION
The MODEL NUMBER
-4. The NAME OF ITEM -ENGINE
"Your Sears merchandise has added value when you consider that Sears has
se_ce units nationwide staffed with Sears trained technicians.., professional
technicians specificallytrained on Seam products,havingthe parts, tools and
equipmentto insurethat we meet ourpledgetoyou ...we servicewhat we selL"
Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA
181-1192-_11