SEARS
operator's
manual
MODEL NO. 143.994006
4.0 RESERVE POWER
10 INCH CUBIC (163 cc)
DISPLACEMENT
SOLID STATE IGNITION
ENGIN
CAUTION:
Read RULES for
Safe OPERATION
and INSTRUCTIONS
Carefully
A
Printedin U.S.A. 4-1-99 181-1178-11
California 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.
Sold by SEARS, ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A.
and SEARS CANADA, INC., TORONTO, ONTARIO, CANADA
• Operating
• Maintenance
• Repair Parts
I
OIL FILL PLUG AND DIPSTICK
RECOIL STARTER
IIHIIIIl_lllllll|iill]
MODELAND
D.O.M.DECAL
STARTER HANDLE
SPARK
PLUG WIRE
\
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:
FILL CAP
FUEL TANK
AIR CLEANER
OIL DRAIN PLUG
I
m
Be'FrOM OF ENGINE ]
Figure 1 ,_
I
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, YOUWILLNEED 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.
EI88
OFF FULL
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, MAINTENANCEAND SAFETY
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
I
,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 onlythe cable screw that came with the engine
brake cable. If the 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 2 feet 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 2 to 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 is even 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
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 FU EL]
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. Besuresparkplugwireisattached to sparkplug(see Figure
1).
MOWER
CONTROL
BAR
MOWER HANDLE
STARTER HANDLE\
MOWER HANDLE
(LPG)
Figure 3
NO SLACK PERMISSIBLE
Figure 4
STARTER
ROPE
BRAKE MECHANISM
LEFT HAND KNOT
STARTER
HANDLE
STARTER
Figure 5
Figure 2 Page 2 181-1178-11
I
1/2 TO 1 INCH
STARTING
MAINTENANCE
_IkNEVER RUN ENGINE INDOORS OR IN ENCLOSED,
POORLY VENTILATED AREAS. ENGINE EXHAUST
DEADLY GAS (CARBON MONOXIDE IS ALSO PRESENT
IN ENGINE EXHAUST FROM LIQUID PETROLEUM (LPG)
I CONTAINS CARBON MONOXIDE, AN ODORLESS AND
AND NATURAL GAS FUEL SYSTEMS).
_KEEP HANDS, FEET, HAIR AND LOOSE CLOTHING
AWAY FROM ANY MOVING PARTS ON ENGINE AND
I EQUIPMENT.
_k WARNING TEM PERATU RE OF MUFFLER AND NEARBY
AREAS MAY EXCEED 150eF (65°C). AVOID THESE
I AREAS.
',,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 5 times, 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 conditionsand 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
I Figure6).
_ 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. Changeoil whileengineisstillwarmfromrecentrunning.
_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 the oildrein plug, 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 it will go. Be sure retainers are locked around flange.
,_. 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
Figure 6 Page 3 181-1178-11
3LOT
TAB
TURN COVER TO THE
LEFT
(COUNTERCLOCKWISE
TO REMOVE
RETAINER
COVER
TO THE RIGHT
(CLOCKWISE)
TO TIGHTEN
Figure 7