SUPERCEDED
ServicingtheSparkPlug
ServiceInterval:Every100hours
UseanNGKBPR5ESsparkplugorequivalent.
1.Shutofftheengineandwaitforallmovingpartsto
stop.
2.Disconnectthewirefromthesparkplug.
3.Cleanaroundthesparkplug.
4.Removethesparkplugfromthecylinderhead.
Important:Replaceacracked,fouled,ordirty
sparkplug.Donotcleantheelectrodesbecause
gritenteringthecylindercandamagetheengine.
5.Setthegapontheplugto0.76mm(0.030inch);refer
toFigure34.
g000533
Figure34
1.Center-electrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
6.Installthesparkplugandthegasketseal.
7.Torquetheplugto23N∙m(17ft-lb).
8.Connectthewiretothesparkplug.
CheckingtheConditionofthe
Belts
ServiceInterval:Every50hours
1.Shutofftheengineandwaitforallmovingpartsto
stop.
2.Removethebeltcover(Figure9)byremovingthe4
boltsthatholdittothemachinehousing.
3.Checkthebeltsforanycracks,frayededges,burn
marks,oranyotherdamage.
4.Replacealldamagedbelts.
5.Ifyoureplacetheblade-drivebelt,youmustadjustit.
RefertoServicingtheBlade-DriveSystem(page21).
6.Installthebeltcoverwiththe4boltsthatyouremoved
instep2.
EmptyingtheFuelTankand
CleaningtheFilter
ServiceInterval:Every50hours—Checkthefuelhoseand
replaceitifnecessary.
Every100hours—Cleanthefueltanklter.
Yearlyorbeforestorage—Emptythefueltankbefore
repairsasdirectororbeforestorage.
Note:Thefueltanklter(screen)elementislocatedinside
thefueltankattheoutlet.Thislterisapartofthefueltank
andcannotberemoved.
1.Shutofftheengineandwaitforittocooldown.
Important:Drainfuelfromacoldengineonly.
2.Disconnectthewirefromthesparkplug.
3.Closethefuel-shutoffvalve.
4.Disconnectthefuellinebylooseningthetubeclampat
thecarburetor.
5.Openthefuel-shutoffvalveanddrainthefuel
completelyfromthetankandfuellineintoanapproved
fuelcontainer.
6.Removethefueltankfromthemachine.
7.Pourasmallamountoffuelinthefueltank,move
thefuelaroundinthetank,andpouritoutintoan
approvedfuelcontainer.
8.Installthefueltankandthefuelline.
ChangingtheFuelFilter
ServiceInterval:Every100hours
1.Shutofftheengineandwaitforallmovingpartsto
stop.
2.Disconnectthewirefromthesparkplug.
3.Closethefuel-shutoffvalve(Figure35).
g019924
Figure35
1.Fuellter2.Fuel-shutoffvalve
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