Operator's Manual

14.SlowlyaddadditionaloiltobringtheleveltotheF
(full)markonthedipstick.
15.Replacethellcap.
ServicingtheSparkPlugs
ServiceInterval:Every200hours—Checkthespark
plugs.
Ensurethattheairgapbetweenthecenterandside
electrodesiscorrectbeforeinstallingeachsparkplug.
Useasparkplugwrenchforremovingandinstallingthe
sparkplugsandagappingtool/feelergaugetocheckand
adjusttheairgap.Installnewsparkplugsifnecessary.
Type:ChampionRC12YCorequivalent.AirGap:0.03
inch(0.75mm)
RemovingtheSparkPlugs
1.Stoptheengine,settheparkingbrake,andremove
thekey.
2.Pullthewiresoffofthesparkplugs(Figure49).
Figure49
1.Sparkplugwire2.Sparkplug
3.Cleanaroundthesparkplugs.
4.Removebothsparkplugsandmetalwashers.
CheckingtheSparkPlugs
1.Lookatthecenterofbothsparkplugs(Figure50).
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Important:Nevercleanthesparkplugs.
Alwaysreplacethesparkplugswhentheyhave
ablackcoating,wornelectrodes,anoilylm,
orcracks.
Figure50
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
2.Checkthegapbetweenthecenterandsideelectrodes
(Figure50).
3.Bendthesideelectrode(Figure50)ifthegapisnot
correct.
InstallingtheSparkPlugs
1.Threadthesparkplugsintothesparkplugholes.
2.Tightenthesparkplugsto20ft-lb(27N-m).
3.Pushthewiresontothesparkplugs(Figure49).
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