Section5: Maintenance
W!_LW:I-'t_II_[_I Beforeinspecting,cleaningorservicingthemachine,shutoffengine,waitformovingpartstostop,disconnectspark
i1"_ plugwireandmovewireawayfromsparkplug.Removeignitionkey(ele_icstartmodels).
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Failuretofollowtheseinstructionscanresultinseriouspersonalinjuryorpropertydamage.
ENGINECLEANING
• Stopengine,waitforpartsto stop
moving,disconnectsparkplugwire,
andallowenginetocoolbeforein-
spectingorcleaningengine.
• Dailyor more often,before runningen-
gine,removegrassand chafffrom recoil
fingerguardor rotatingscreento prevent
enginedamagecausedbyoverheating.
Alsokeepcooling vanes,governor link-
age,springsandcontrols freeof debris.
• Dailyor moreoften, beforerunningen-
gine,cleanmuffler area(besure muffler
is cool)to removeall grassandcom-
bustibledebris. If engineis equipped
with a sparkarrestorscreen, removeas-
semblyevery50 hoursfor cleaningand
inspection.Replaceif damaged.
• Grassor chaff mayclog engine'sair
coolingsystem,especiallyafter pro-
longedoperationcuttingtall, dry grass.
SeeEngineOwner'sManualfor instruc-
tions on cleaningunderneaththe engine
blowerhousing.
AIR CLEANERSERVICE
Improperair cleanermaintenancecan
causeenginedamage.Refertothe
EngineOwner'sManualfor more com-
pleteair cleanerserviceinformation.
SERVICESCHEDULE:
Outerfoam pre-cleaner- washand re-oil
every25 operatinghours or everysea-
son, whicheveroccursfirst.
Innerpapercartridge- clean or replace
every100 operatinghours or everysea-
son, whicheveroccursfirst.
ToServiceAir Cleaner(Figure5-3):
1. Stopengine,waitfor partsto stop
moving,anddisconnectsparkplug
wire.
2. Unscrewmountingscrewsand/or re-
moveknobs (D). Removecovers(E).
Removepapercartridge(B) andfoam
pre-cleaner(A). Separatefoam pre-
cleanerfrom papercartridge.
3. Washfoam pre-cleaner(A) in liquid
A
Chargebattery onlywith chargersup-
pliedwith machine.Donotshortcircuit
batterywires. Removeanyjewelry be-
fore workingon or near the battery or
electricstartsystem. Failure to follow
these instructionscouldresult in per-
sonalinjuryorpropertydamage.
Figure5-3: BriggsandStrattonair cleaner
assembly.
detergentandwarm water. Squeezedry
in acleancloth.
4. Saturatefoam pre-cleanerin clean
engineoil. Wrapin clean,absorbent
cloth andsqueezeto removeall excess
oil.
5. Replacepapercartridge(B), if
necessary.
6. Reassembleair cleanercomponents.
SPARKPLUG
Inspectthe sparkplug (Figure5-4) after
every 100hoursof operation.Besure
the gapis setat .030".Do not reuseplug
if it is severelyworn or damaged.
Bestresultsare obtainedwith a new
plug. SeeEngineOwner'sManualto de-
termine proper replacementplug. Use
of incorrectplug can causeenginedam-
age.
NOTE:Do not cleanspark plug in ma-
chines which useabrasivegrit. Clean
spark plug by scrapingor wire brushing,
or washingwith a commercialsolvent.
BATTERY(if applicable)
Chargebatteryif unit is to bestoredfor
longerthanthreeweeks.Duringthe
mowingseason,the batteryis kept
chargedbythe chargingsystem onthe
engine.
ToChargeBattery:
1. Plugchargerconnectorinto wire har-
nessconnectorlocatedbelowignition
switch in handlebarconsole.
2. Plugchargerinto120Vwall outlet.
Tightenknobs/screws(D)securely. (Notethat batterychargeris designedfor
Secure coverassembly(E)on air useindoorsandshouldnotbeexposedto
cleanerbody. rainorsnow.)
3. Chargebatteryfor 24-48 hours if unit
is to bestoredfor longerthanthree
weeks.
.030' FeelerGauge
4. After charging,unplugchargerfrom
outlet,then unplugchargerfrom con-
nector on wire harnesslocatedbelow
handlebarconsole.
CARBURETOR
Thecarburetor is adjustedatthe factory.
It shouldnot needto be reset. If black
exhaustis noted,checktheair cleaner
first. An over-rich mixture is usually
causedbya poorlyservicedor clogged
air cleanerelement,not an improperly
adjustedcarburetor. If readjustmentis
necessary,referto EngineOwner's
Manualor contactyour enginedealer.
Figure5-4: Sparkplug.
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