Craftsman 143993503 User Manual ENGINE Manuals And Guides L9060203

CRAFTSMAN Engine Manual L9060203 CRAFTSMAN Engine Owner's Manual, CRAFTSMAN Engine installation guides

User Manual: Craftsman 143993503 143993503 CRAFTSMAN ENGINE - Manuals and Guides View the owners manual for your CRAFTSMAN ENGINE #143993503. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman ENGINE Manual

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operator's

manual

MODEL NO. 143.993503

SOLID STATE IGNITION

CAUTION:

Read RULES for

Safe OPERATION

and INSTRUCTIONS

Carefully

ENGIN

• Operating

• Maintenance

•Repair Parts

California Proposition 65 WARNING: a'he engine exhaust from this product contains chemicals I

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

Printed in U.S.A. 3-1-99 181-1200-11

,"STOPSWITCH

FUELFILLCAP SPARKPLUG SPARKPLUGWIRE

IIIIIIIIIH lllinlt I

MODEL AND

D.O.M. DECAL FUELTANK

FILLPLUGANDDIPSTICK AIR C

LEVER INTAKE

SCREEN

01LDRAINPLUG STARTERHANDLE

Figure1

_k 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 FOLLOW ALL INSTRUCTIONS IN THIS

MANUALAND ANYPROVIDEDWITHTHEEQUIPMENTONWHICHTHIS ENGINE ISUSED BEFOREAI-rEMPTING TOOPERATING.

J THESE SYMBOLS (_ i._1 _1

MAY APPEAR ON El

THE ENGINE: OFF FULL

FAST SLOW STOP CHOKE

ENGINES WHICH ARE CERTIFIED TO COMPLY WITH CALIFOR-

NIA AND US EPA EMISSION REGULATIONS FOR ULGE EN-

GINES: Are certified to operate on regular unleaded gasoline.

Include the following emission control system(s): EM, TWC (if so

equipped); Do not include any user adjustable features - therefore no

other adjustments are needed.

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.

OIL & FUEL RECOMMENDATIONS

TO OPERATE ENGINE, YOU WILL NEED THE FOLLOWING:

(_A CLEAN, HIGH QUALITY, DETERGENT OIL.

Be sure odginal container is marked:

A.P.I. service "SF'-"SJ".

BEFORE STARTING

_) READ ALL INSTRUCTIONS PROVIDED WITH THE

EQUIPMENT ON WHICH THIS ENGINE IS USED.

(_ TO FILL OIL SUMP OR CHECK OIL LEVEL:

FOR SUMMER (ABOVE 32°F; 0°C) USE SAE 30 OIL.

Using multigrade oil will increase oil consumption.

FOR WINTER (BELOW 320F; 0°C) USE SAE 5W30 OIL.

(SAE 10W is an acceptable substitute.)

OIL SUMP CAPACITY: 21 ounces (1-1/4 pints)

.56 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 containing up to 10% ethanol or

grain alcohol ("Gasohol'), or up to 15% MTBE (Methyl Tertiary

Butyl Ether), may be used but requires special care when engine

is unused for extended periods. Sea "STORAGE" instructionson

Page 4.

NOTE: Usa clean oil and fuel and store in approved, clean

covered containers. Use clean fill funnels.

IMPORTANT: To avoid engine damage never run engine unless:

-Oil level is between "FULL" and "ADD" marks on dipstick.

-Oil fill plug is tightened securely into oil fill tube or hole,

CHECK OIL LEVEL OFTEN DURING ENGINE BREAK-IN.

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. Remove dipstick. If oil is not up to "FULL" mark

on dipstick, add recommended oil. POUR SLOWLY. Wipe

dipstick clean each time oil level is checked.

IMPORTANT: DO NOT FILL ABOVE "FULL" MARK ON

DIPSTICK.

E. Install oil fill plug and dipstick, tighten securely.

See =MAINTENANCE" section for any future oil level and oil change

instructions (see Page 3).

Never use=stale" gasolineleftover fromlast seasonor stored

for longpedods. Page 1 181-1200-11

BEFORE STARTING (Continued)

(_) FILL FUELTANKwithgasolineasspecifiedinthepreceding

=OIL& FUEL RECOMMENDATIONS," item 2.

NEVER MIX OIL WITH GASOLINE

Never use "stale"gasoline left over from last season orstored for

long periods.

_IL NEVER FILL FUEL TANK INDOORS, NEVER FILL FUEL I

TANK WHEN ENGINE IS RUNNING OR HOT. DO NOT SMOKE

IWHEN FILLING FUEL TANK.

_IL NEVER FILL FUEL TANK COMPLETELY. FILL TANK TO 1/2"

BELOW BO'I'rOM OF FILLER NECK TO PROVIDE SPACE

IFOR FUEL EXPANSION. WIPE ANY FUEL SPILLAGE FROM

ENGINE AND EQUIPMENT BEFORE STARTING ENGINE.

_bANY LIQUEFIED PETROLEUM (LPG) OR NATURAL GAS I

FUEL SYSTEM MUST BE LEAKPROOF AND MEET ALL

APPLICABLE CODES AND REGULATIONS.

(_ CHECK THE FOLLOWING:

A. BE SURE EQUIPMENT IS IN NEUTRAL GEAR WITHI

_lL CLUTCHES, BELTS, CHAINS AND SAFETY SWITCHES I

DISENGAGED. (FOLLOW EQUIPMENT MANUFAC- I

lURER'S INSTRUCTIONS). THIS SHOULD PLACE ANY

SAFETY SWITCHES IN SAFE STARTING PosmoN.

B. Be sure spark plugwire is attached to spark plug (see Figure

1).

C. Be sure stop switch next to spark plugis not contacting spark

plug (see Figure 1).

D, Be sure any ignitionswitch on engine or equipment is in ON,

RUN or START position.

STARTING

_k 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

FROM LIQUID PETROLEUM (LPG) AND NATURAL GAS

FUEL SYSTEMS).

_KEEP HANDS, FEET, HAIR AND LOOSE CLOTHING AWAYFROM ANY MOVING PARTS ON ENGINE AND EQUIPMENT.

,_k WARNING: TEMPERATURE OF MUFFLER AND NEARBY I

AREAS MAY EXCEED 150°F (65°C). AVOID THESE AREAS. J

ENGINE WITH PRIMER

1) Move controllever to "FAST"or "START" (see equipment

manufacturer's instructions).

2) The carburetoronyourenginehas bsencompletelyadjusted

at thefactory. When startinga coldengine,pushred pdmer

bulbflrrnly with your thumb 5 times, allowingprimerbulb

to return completelyto original positionbetween,pushes.

Repeat the abovefor each starteroperationas necessary.

NOTE: DO NOT USE PRIMER TO RESTART A WARM

ENGINE AFTER A SHORT SHUTDOWN.

3) a) RECOIL STARTERS: Graspstarterhandle(figure1)and

pull rope out slowlyuntilyou feel drag. Let rope rewind

slowly. Pull rope withrapid, full arm stroke. Returnrope

slowlyto odginalposition.

NOTE: If enginefails to startafterthroe pulls,repeatstep

2above.

STOPPING

(_ Move equipment control or any ignition stop switch on engine

to STOP or OFF (see equipment manufacturer's instructions).

(_ Push stop switch (if so equipped see Figure 1) located next to

spark plug on engine against spark plug and hold it in this

position until engine is completely stopped.

I_) AFTER ENGINE IS STOPPED:

_. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUGI

AND KEEP IT AWAY FROM SPARK PLUG. .J

_liB. TURN, IGNITION SWITCH KEY (IF SO EQUIPPED) TO I

OFF POSITION AND REMOVE KEY FROM SWITCH, I

THIS WILL REDUCE THE POSSIBILITY OF UNAUTHO-

RIZED STARTING OF ENGINE WHILE EQUIPMENT IS

NOT IN USE.

INEVER STORE ENGINE WITH FUEL IN TANK INDOORS I

OR IN ENCLOSED, POORLY VENTILATED AREAS, I

WHERE FUEL FUMES MAY REACH AN OPEN FLAME, I

SPARK OR PILOT LIGHT AS ON AFURNACE, WATER I

HEATER, CLOTHES DRYER OR OTHER GAS APPLI-

ANCE.

MAINTENANCE

_kWARNING: TEMPERATURE OF MUFFLER AND NEARBY I

AREAS MAY EXCEED 150°F (65eC), AVOID THESE AREAS,!

CHECK OIL LEVEL:

Checkoilleveleveryfive(5) operatinghoursoreachtimeengine

is used.See "_) CHECK OIL LEVEL"in =BEFORESTARTING"

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 running.

,_A. DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG

AND KEEP T AWAY FROM SPARK PLUG.

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.

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

F. Replace oilfill plugandtightensecurely.

G. Connectsparkplugwireto spark plug.

iPRIMER

Page 2 Figure 2 181-1200-11

MAINTENANCE (Continued)

(_ AIR CLEANER:

IMPORTANT: NEVER RUN ENGINE WITHOUT COMPLETE

AIR CLEANER INSTALLED ON ENGINE.

A. TO SERVICE PAPER FILTER (see Figure3):

DO NOT ATTEMPT TO CLEAN OR OIL FILTER.

Replace once a year or every 100 operatinghours,more

oftenif used in extremelydustyconditions.

Replacementfilters are availableat any nearbySears

Roebuckand Co. (or Sears Canada, Inc.) ServiceCenter.

B. TO REMOVE AND INSTALL FILTER:

1. Loosentwo (2) cover screws(these need notbe

removed completely).

2. Turn cover counterclockwiseand removeit and paper

filterfrom base. Discardpaper filter.

3. Clean insideof base and cover thoroughly.

4. Insert new paper filter intocover and reassemble

cover to base as it was before removal.Tightencover

screwssecurely.

RETAINER

SLOT

COVERJ

TURNCOVERTO

THELEFT

(COUNTERCLOCK-

WISE)TO

REMOVE

'TURN

COVERTO

THERIGHT

(CLOCK-

WISE)TO

TIGHTEN

Figure3

MAINTENANCE (Continued)

®SPARK PLUG (see Figure4):

This sparkignitionsystemmeets all requirementsof the Cana-

dianInterference-CausingEquipmentRegulations.Thisengine

complies withall currentAustralianandNew Zealandlimitiations

regardingelectromagneticinterference.

Checkspark plugyeedy or every 100 operatinghours.

A. Clean area aroundspark plug.

B. Removeand inspectsparkplug.

C. Replacesparkplugif electrodesare pitted,bumed or

porcelainis crackad. For replacementuse Champion

RCJ-8.

NOTE: A resistorsparkplugmustbe usedfor replace-

ment.

D. Checkelectrodegap withwirefeeler gauge andset gap

at .030 if necessary.

E. Installsparkplug, tightensecurely.

POCELAIN

Figure 4

(_) COOLING SYSTEM:

IMPORTANT: Frequently remove any grass clippings, dirt

and debds from cooling fins, air intake screen and levers and

linkage (see Figure 1). This will help ensure adequate cooling

and correct engine speed.

CHECK ENGINE AND EQUIPMENT OFTEN FOR LOOSE

_NUTS, BOLTS AND A'I-I'ACHMENTS AND KEEP THESE

ITEMS TIGHTENED.

ADJUSTMENTS

DO NOT MAKE UNNECESSARY ADJUSTMENTS. FACTORY

SE'I-rlNGS ARE SATISFACTORY FOR MOST APPLICATIONS

AND CONDITIONS. IF ADJUSTMENTS ARE NEEDED, PRO-

CEED AS FOLLOWS:

(_ ENGINE SPEED:

_NEVER TAMPER WITH ENGINE GOVERNOR WHICH IS FAC-

TORY SET FOR PROPER ENGINE SPEED. OVERSPEEDING

ENGINE ABOVE FACTORY HIGH SPEED SE'I'RNG CAN BE

DANGEROUS.

FOR ANY MAJOR ADJUSTMENTS OR REPAIRS, CONTACT

YOUR NEARBY SEARS ROEBUCK AND CO. (OR SEAR,_

CANADA, INC.) SERVICE CENTER.

Page 3 181-1200-1"

STORAGE

,_ NEVER STORE ENGINE WITH FUEL IN TANK INDOORS 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. J

IF ENGIN E IS TO BE UNUSED FOR 30 DAYS OR MORE, PREPARE

AS FOLLOWS:

(_ DRAIN FUEL SYSTEM:

Remove all gasoline from carburetor and fuel tank to prevent

gum 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 |

LNOT SMOKE. J

Run engine until fuel tank is empty and engine stops due to lack

of fue!.

NOTE: Fuel stabilizer(such as STA-BIL) is an acceptable

alternative in minimizingthe formationof fuel gum

depositsduringstorage. Add stabilizerto gasolinein

fuel tank or storagecontainer:Alwaysfollow mix ratio

foundon stabilizercontainer.Run engineat least 10

minutes after adding stabilizerto allow it to reach

carburetor.

(_ CHANGE OIL:

Changeoilifit hasnotbeenchangedinthe lastthree(3) months.

See "CHANGE OIL" instructionsin "MAINTENANCE"section,

(_ OIL CYLINDER BORE:

A. Remove spark plug. Squid one (1) oz. (30 ml) of clean

engine oil into spark plug hole.

B. Cover spark plug hole with a rag.

C. Crank engine over, slowly, several times.

_ib AVOID SPRAY FROM SPARK PLUG HOLE WHEN |

CRANKING ENGINE OVER SLOWLY. J

D. Installsparkptug.Do notconnectsparkplugwire.

(_ CLEAN ENGINE:

Removeany clippings,did, or chafffrom exteriorof engine.

GENERAL

Justasyourautomobileneedsprofessionalmechanicalmaintenance

from time to time,so does yourCraftsmanengine. Replacementof

the spark plugand aircleaner is made necessaryby NORMAL use.

ProfessionalAir-CooledEngineServiceis as closeas yournearest

Sears Roebuckand Co. (or Sears Canada, Inc.) ServiceCenter.

A yearly check-up or tune-up by Sears is a good idea to avoid

breakdownsor delay.., do it at the end of the season,thenyou're

readyfor the next.We even prepareit for storagefor you.

Page 4 181-1200-11

TROUBLESHOOTING

THE FOLLOWING MAY HELP AVOID A DELAY IN YOUR WORK OR

SAVE THE EXPENSE OF A SERVICE CALL.

ENGINE FALLS TO START OR STARTS WITH DIFFICULTY

CAUSE REMEDY

Controlsnotin startposition.

Sparkplugwiredisconnectedfromsparkplug.

Sparkplugfouled.

Sparkplugpomelaincracked.

Insufficientfuel.

Wateror dirtinfuel.

Impropercarburetoradjustment

ENGINE LACKS POWER

CAUSE

Dirtyair cleaner.

Impropercarburetoradjustment.

Lackof lubricaiton.

ENGINE MISSES UNDER LOAD

CAUSE

Sparkplugfouled,

Sparkplugpomelaincracked.

Impropersparkpluggap.

Impropercarburetoradjustment

Move ENGINE CONTROL orequipmentcontrolto "HI"or

START postion. See "STARTING' instructionsin this

manual.

Connect SPARK PLUG WIRE to SPARK PLUG.

RemoveSPARK PLUGand cleanit. See 'SPARK PLUG'

instructionsin "MAINTENANCE' sectioninthismanual.

Install new spark plug.

Fill FUEL TANK per "BEFORE STARTING" instructions.

DrainFUEL TANK and re-fillwithclean, fresh gasoline. See

"BEFORESTARTING" instructionsinthismanual.

Adjustcarburetor(if applicable). See "ADJUSTMENTS"

sectioninthismanual.

REMEDY

Replace or clean air cleaner per "AIR CLEANER"

instructions in "MAINTENANCE' section in this manual.

Adjustcarburetor (if applicable). See "ADJUSTMENTS=

sectioninthismanual.

Filloil sumpto properlevel. See "BEFORESTARTING"

instructionssectioninthismanual.

REMEDY

RemoveSPARK PLUG andclean it. See "SPARKPLUG"

instructionsin"MAINTENANCE" sectioninthismanual.

Installnew SPARK PLUG.

RegapSPARK PLUG electrodes. See "SPARKPLUG"

instructionsin "MAINTENANCE"sectioninthis manual.

Adjustcarburetor(if applicable). See "ADJUSTMENTS"

sectioninthismanual.

Page 5 181-1200-11

SEARS, ROEBUCK AND CO.

Federal and Califomia Emission Control Systems Limited Warranty

Utility and Lawn and Garden Engines

CALIFORNIA & US EPA EMISSION CONTROL

WARRANTY STATEMENT

The U. S. Environmental Protectldn Agency =EPA') the California Air Resources

Board "CARB") 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 andlater utility and lawn and

arden equipment engines must be designed, built and equipped to meet the

_tata's stringent anti-sm%l standards, in other states, new 1997 and later model

year engines must be des=gned, built and equipped, at the time of sale, to meet

the U.S. 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 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 emlssion-rstated assemblies,

Wbete a warrantable condition exists, Sears, Roebuck and CO. will repair your

utility or lawn and garden equipment engine at no cost to you for diagnosis, parts

and labor.

MANUFACTURER'S EMISSION CONTROL SYSTEM

WARRANTY COVERAGE

Emission control systems on 1995 and later model year California utilility=andlawn

and garden equipment engines are warranted for two years as hereinafter noted.

ld other states, t997 and later medel year engines are also warranted for two

years, if, during such warranty period, any emission-related part on your engine is

defestive in materials or workmanship, the part will be repaired or replaced by

Sears, Roebuck and Co.

OWNER'S WARRANTY RESPONSIBILITIES

AS the ofi_ity 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

matntenance.

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 faired due 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 a reasonable

amount of time, not to exceed 30 days.

Warranty service can be arranged by contacting either aSeam, Roebuck and Co.

Authorized Service Outlet, or by contacting Sears, Roebuck and Co. at 1-8GO-473-

7247.

IMPORTANT NOTE

This warranty statement explains your rights and obligations under the Emission

Control System Warranty ('ECS Warranty') which is provided to you by Seam,

Roebuck and Co. pursuant to California law. See also the Sears Roebuck and

CO, L mited 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 any conflict in terms between the ECS Warranty and the

Sears, Roebuck and Co, Warranty the ECS Warranty shall apply except in any

circumstances in which the Seam, Roebuck and Co. Warranty may provide a

longer warranty period. Both the ECS Warranb/and the Sears, Roebuck and Co,

Warranty describe important rights and obligahons 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 the odgmal purchaser. The purchaser shall pay

any cberges for making service calls and/or for transportldg the prroducts to and

from the place where the inspection and/or warranty work is performed. The

purchaser shall be responsible for any damalge or loss incurred in connection with

the transportation of any engine or any part(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 California utility and lawn and garden equipment engines (for other states,

1997 and later model year engines):

A. APPLICABILITY: This warranlty shstl 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 Pedod shall begin on the date

the new engine or equipment is dstiveted to its original end-usa purchaser and

shall continue for 24 consecutive months thereafter.

B. GENERAL EMISSIONS WARRANTY COVERAGE: Seam, Roebuck and Co.

warrants to the original, end-use purchaser of the new engine or equipment and to

each subsequent purchaser that each of its utility and lawn and garden equipment

engines 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 1 and 2, Part 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 WarranmtyPeriod, 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 certificatldn.

C. The ECS Warranty only pertains to emissldns-related parts on your engine, as

fctlows:

Any warranted, emissions-related parts which are not scheduled for

replacement as required maintenance in the Owner's Manual shall be

warranted for the ECS Warranty Period. I1 any such part fails during the

ECS Warranty Pedod, it shall be repaired or replaced by Sears, Roebuck

and Co. according to Subsection 4 below. Any such pad repaired or

replaced under the ECS Warranty shall be warranted for any remainder of

the ECS Warranty Period.

Any warranted, emissions-related part which is scheduled only for regular

inspection as specified in the Owner's Manual shall be warranted for the

ECS Warranty Period. A statement in such wdtten instructions to the

effect of "repair or repJace as necessary', shall not reduce the ECS

Warranty Pedod. Any such part repaired or replaced under the ECS

Warranty shall be warranted for the remainder of the ECS Warranty

Period.

Any warranted, emissions-related part whish is scheduled for replacement

as required maintenance in the Owner's Manual, shall be warranted for the

period of time prior to the first scheduled replacement point for that pprt. ff

the part fails pdor to the first scheduled replacement, the part shall be

repaired or replaced by Sears, Roebuck and Co. according lo Subsection 4

below. Any such emissioss-reldted part repaired or replaced under the

ECS Warranty, shall be warranted for the remainder of the ECS Warranty

Period prior 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 cha_ge to the owner at a Sears,

Roebuck and Co. Authorized Service Outlet.

5. 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.

6. Sears, Roebuck and Co. shall be liable for damages to other odginal

engine components or approved modifications proximately caused by a

failure under warranty of an emission-related part coveredby the ECS

Warranty.

7. Throughout the ECS Warranty Period, Sears, Roebuck and Co. shall

maintain asupply of warranted emissldn-relatad parts sufficient to meet

the expected demand for such emission-related pads.

8. Any Sears, Roebuck and Co. authorized and approved emission-reldted

replacement part may be used in the performance of any ECS Warranty

maintenance or repair and will be provided without charrgetto the owner.

Such use shall not reduce Sears, Roebuck and Co. ECS Warranty

obligations.

9. Unapproved add-on or modified parts may not be used to modify or repair

a Seam, Roebuck and Co, engine. Such use voids this ECS Warranty and

shall be sufficient grounds for disallowing an ECS Warranty claim, Sears,

Roebuck and Co. shall not be liabld hereunder for failures of any warranted

pads of a Sears, Roebuck and Co, engine caused by the use of such an

unapproved 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 6 181-1200-1

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.993503

,313

223

285

287 370K

250_.

'_' '262

Page 7 181-1200-11

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.993503

Ref.

No.

25A

26A

100

1O2

103

110

119

120

125

126

130

130A

132

135

150

151

151A

189

Part

No.

36591

26727

28277

31334

31336

31335

651018

34593

32600

36552

35883

650802

650926

37336

40020

40021

40018

40019

40022

40023

20381

30963B

32610A

27241

28594

32197A

29745

650128

"27677A

34683B

27642

26208

30574A

30590A

30591

30588A

650488

610961

611195

650815

650816

34443B

651024

851007

35182

*36437

36438

36471

36472

293140

650694A

6021A

850708

33636

31672

31673

40016A

"27234A

Ref. Part

Part Name No. No.

Cylinder (Incl. 2, 20, 72 &125) 170

Dowel Pin 171

Washer 172

Governor Rod 173

Governor Lever 173A

Governor Lever Clamp 174

Screw, Torx "1"-15,8-32 x 19/64" 178

Extension Spring 179

Oil Seal 182

Blower Housing Baffle (Incl. 262) 184

Baffle Extension 185

Screw, 1/4-20 x 5/8" 186

Screw, 8-32 x 21/64" 200

Crankshaft 203

Piston, Pin & Ring Set (Std.) 204

Piston, Pin & Ring Set (.010' OS) 206

Piston & Pin Ass'y. (Std.) (Incl. 43) 209

Piston & Pin Ass'y. (.010" OS) (Incl. 209A

43) 215

Ring Set (Std.) 223

Ring Set (.010" OS) 224

Piston Pin Retaining Ring 238

Connecting Rod Ass'y. (Incl. 46 & 239

49) 241

Connecting Rod Bolt 245

Valve Lifter 250

Oil Dipper 260

Camshaft (MCR) 262

Blower Housing Extension 275

Screw, 10-24 x 1/2= 277

Cylinder Cover Gasket 285

Cylinder Cover (Incl. 75 thru 83) 287

Oil Drain Plug 290

Oil Seal 292

Governor Shaft 298

Washer 300

Governor Gear Ass'y. (Incl. 81) 301

Governor Spool 305

Screw, 1/4-20 x 1-1/4" 307

Flywheel Key 308

Flywheel 310

Belleville Washer 313

Flywheel Nut 339

Solid State Ignition 340

Solid State Mounting Stud 342

Screw, Torx T-15, 10-24 x 15/!6' 345

Ground Wire

Cylinder Head Gasket

Cylinder Head (Incl. 119 & 130)

Exhaust Valve (Std.) (Incl. 151)

Exhaust Valve (1132" OS) (Incl. 151)

Intake Valve (Std.) (Incl. 151)

Screw, 5/16-18 x 2"

Screw, 5/16-18 x 1-1/2"

Washer

Spark Plug (RJ17LM)

Valve Spring

Valve Spring Cap

Intake Valve Seal

Valve Cover Gasket

27666

31410

34146

32447

32446

650783

29752

30593

6201

*26756

36703

31341

36677

31342

651029

610973

650139

30322

32410

650451

"26754A

650932

*34338

35797

35066

35065

35585

650737

40000A

650988

36467A

650926

29774

26460

650665

35591

35355

35554

35499

35539

35556

34080

28212

35926

650751

32664

Part Name

Breather Body

Breather Element

Valve Cover

Breather Tube

Breather Tube Grommet

Screw, 10-24 x 3/4"

Nut & Lock Washer, 1/4-28

Retainer Clip

Screw, 1/4-28 x 7/8"

Carburetor To Intake Pipe Gasket

Intake Pipe (incl. 182, 184, 224)

Governor Link

Control Bracket (Incl. 203 thru 209A)

Compression Spring

Screw, Torx T-10, 5-40 x 7/16"

Terminal

Screw, 8-32 x 1/2"

Lock Nut 8-32

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, 1/4-20 x 1/2"

Muffler (W/Catalyst)

Screw, 1/4-20 x 1-3/4"

Starter Cup

Screw, 8-32 x 21/64"

Fuel Line

Fuel Line Clamp

Screw, 1/4-15 x 7/8"

Fuel Tank (Incl. 292 & 301)

Fuel Cap

Oil Fill Tube

"O"-Ring

Fill Tube Clip

Dipstick

Spacer

Fuel Tank Bracket

Screw, 1/4-20 x 7/16"

Heat Baffle

*Indicates Parts Included in

Gasket Set, Ref. No. 400,

Page 8 181-1200-11

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.99350',

Ref. Part

No. No.

370A 36261

370B 35703

370K 36695

380 640172

390 590732

400 36439

416 36085

417 650821

Part Name

Lubrication Decal

Control Decal

Starter Decal

Carburetor (Incl. 184)

Rewind Starter

(NOTE: This engine could have

been built with 590738 starter).

Gasket Set (Incl. Items Marked *)

Spark Arrestor Kit (Incl. 417)

(Optional)

Screw, 10-32 x 1/2" (Optional)

R_. Part

No. No.

900

181-1200-11

Part Name

Replacement Engine 754294A,

order from 71-999

Replacement Short Block 754291,

order from 71-999

Operator's Manual

*Indicates Parts Included in

Gasket Set, Ref. No. 400.

RPM High 3300 to 3600

RPM Low 1700 to 2000

CARBURETOR NO. 640172

I I

R_. Pad

No. No. PaN Name

640172

1 631615

2 631767

4 *631184

5 *631183

6 631036

7 "650506

16 632164

17 651025

18 630766

20 640018

20A 640053

25 631867

27 *631024

28 632019

29 *631028

30 *631021

31 631022

35 36045A

36 640019

37 *632547

40 640074

44 "27110A

47 *630748

48 *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 Scraw/Idle Speed Screw

Tension Spring

Idle Restdctor Screw

Idle Restrictor Screw Cap

Float Bowl

Roat Shaft

Float

Float Bowl =O" Ring

Inlet Needle, Seat, & Clip (Incl. 31)

Spring Clip

Primer Bulb/Retainer Ring

Main Nozzle Tube

"O" Ring, Main Nozzle Tube

High Speed Bowl Nut

Bowl Nut Washa

Welch Plug, Idle Mixture Well

Welch Plug, Atmospheric Vent

Repair kit (Incl. Items Marked *)

Page 9 181-1200-11

REWIND STARTER NO. 590732

-11

BI--5

O--2

Ref. Part

No. No. Part Name

590732

1 590599A

2 590600

3 590696

4 590601

5 590697

6 590698

7 590699

8 590700

11 590695

12 590535

13 590701

Rewind Starter

Spdng Pin (Incl. 4)

Washer

Retainer

Washer

Bmke Spdng

Starter Dog

Dog Spring

Pulley Ass'y, (Incl. 9 & 10)

Starter Housing Ass'y, (40 degree

grommet)

Starter Rope (Length 98" x 9/64" dia.)

Starter Handle

STARTER NO. 590738

_--14

--8

Ill 1!--7

Ref. Part

No. No. Part Name

590738

590740

590616

590617

590618A

590687A

590535

590701

590741

RewindStarter (Optional)

Retainer

StarterDog

DogSpring

Pulley& RewindSpringAss'y.

Starter HousingAss'y.(40 degree

grommet)

Starter Rope(Length98" x 9/64" dia.)

StarterHandle

LockingTab

Page 10 181-1200-11

operator's

manual

MODEL NO. 143.993503

SOLID STATE IGNITION

CAUTION:

Read RULES for

Safe OPERATION

and INSTRUCTIONS

Carefully

How to ORDER Repair Parts

The Model Number will be found on adecal on the blower

housing (See Figure 1). Always mention the Model Number

when requesting service or repair 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 not stocked locally, your order

will be electronically transmitted to a Sears Repair Parts Distribu-

tion 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 MODEL NUMBER

4. The NAME OF ITEM - ENGINE

"Your Sears merchandisehas addedvalue whenyou considerthat Sears has

service unitsnationwidestaffedwith Seam trainedtechnicians..,professional

techn_iansspecificallytrainedonSears products,havingthe parts,toolsand

equipmentto insurethatwe meetourpledgeto you... we servicewhatwe sell."

Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.

and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA

181-1200-1'

Craftsman 143993503 User Manual ENGINE Manuals And Guides L9060203

CRAFTSMAN Engine Manual L9060203 CRAFTSMAN Engine Owner's Manual, CRAFTSMAN Engine installation guides

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