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Cleaningtheairfilter:
Adirtyairfilterdecreasesengineper-
formanceandincreasesfuelconsump-
tionandharmfulemissions.Always
cleanafterevery5hoursofoperation.
1.Cleanthecoverandthearea
aroundittokeepdebrisfromfalling
intothecarburetorchamberwhen
thecoverisremoved.
2. Removepartsasillustrated.
NOTE:Donotcleanfilteringasolineor
otherflammablesolvent.Doingsocan
createafirehazardorproduceharmful
evaporativeemissions.
3.Washthefilterinsoapandwater.
4.Allowfiltertodry.
5.Addafewdropsofoiltothefilter;
squeezefiltertodistributeoil.
6.Replaceparts.
REPLACESPARKPLUG
Replacesparkplugeachyeartoen-
suretheenginestartseasierandruns
better.Setsparkpluggapat0.025in.
Ignitiontimingisfixed,nonadjustable.
1.Twist,thenpulloffsparkplugboot.
2. Removesparkplugfromcylinder
anddiscard.
3. ReplacewithChampionRCJ-SY
sparkplugandtightenwitha3/4in.
socketwrench(10-12ft.-Ibs).
4. Reinstallthesparkplugboot.
REPLACEFUELFILTER
Toreplacefuelfilter,drainunitbyrun-
ningitdryoffuel,thenremovefuelcap
anditsconnectedretainerfromtank.
Pullfilterfromtankandremoveitfrom
thefuelline.Installnewfuelfilteron
fuelline;reinstallparts.
Werecommendallserviceandadjust-
mentsnotlistedinthismanualbeper-
formedbyyourSearsServiceCenter.
CARBURETORADJUSTMENT
Carburetoradjustmentiscriticalandif
doneimproperlycanpermanentlydam-
agetheengineaswellasthecarbure-
tor.Ifyourequirefurtherassistanceor
areunsureaboutperformingthispro-
cedure,callourcustomerassistance
helplineat1-800-235-5878.
Oldfuel,adirtyairfilter,adirtyfuelfil-
ter,orfloodingmaygivetheimpression
ofanimproperlyadjustedcarburetor.
Checktheseconditionsbeforeadjust-
ingthecarburetor.
Thecarburetorhasbeencarefullyset
atthefactory.Adjustmentsmaybe
necessaryifyounoticeanyofthefol-
lowingconditions:
•Enginewillnotidle.SeeIDLESPEED
andMIXTUREunderadjusting
procedure.
• Enginediesorhesitatesinsteadof
accelerating.SeeACCELERATION
CHECKunderadjustingprocedure.
•Lossofpower.SeeMIXTUREunder
adjustingprocedure.
ADJUSTINGPROCEDURE
CAUTION:Donotforceplasticlimiter
capsbeyondthebuilt-instopsordam-
agewilloccur.
InitialSettings
1.Turnbothmixturescrews(LandH)
counterclockwiseuntiltheystop.
2.Turntheidlespeedscrewclockwise
untilitstops.Nowturncounterclock-
wise41/2turns.
3.Startmotorandletitrunfor3min-
utes,thenproceedtotheadjust
screwsaccordingtotheinstructions
below.Ifengineperformanceatini-
tialsettingsisacceptable,nofurther
adjustmentsarenecessary.Ifen-
ginedoesnotstart,refertoTROU-
BLESHOOTINGTABLE.Ifstillunable
toremedysituation,call
1-800-235-5878.
LowSpeed IdleSpeed
Screw_ Screw
H L
HighSpeed Screwswith(¢£_t)_,_
Screw Limiter Caps
Idle Speed "IDLE"
Allow engine to idle. If the blade
moves, idle speed is too fast. If the en-
gine stalls, idle speed is too slow.
-8-
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