Operator's Manual

Figure42
1.Foamelement2.Paperelement
4.Whenservicingthefoamelement,checkthecondition
ofthepaperelement.Cleanitbygentlytappingitona
atsurfaceorreplaceitifneeded.
5.Installthefoamelement,paperelement,andaircleaner
cover.
Important:Donotoperatetheenginewithoutthe
aircleanerelementbecauseextremeenginewear
anddamagewilllikelyresult.
ChangingtheEngineOiland
Filter
ServiceInterval:Aftertherst25hours
Every100hours
1.Removethedrainplug(Figure43)andletoilowinto
adrainpan.Whentheoilstops,installthedrainplug.
Figure43
1.Drainplug
2.Oillter
2.Removetheoillter(Figure43).Applyalightcoatof
cleanoiltothenewltergasket.
3.Screwthelteronbyhanduntilthegasketcontacts
thelteradapter,thentighten1/2to3/4turnfurther.
Donotovertighten.
4.Addoiltothecrankcase;referto
CheckingtheEngineOil(page24).
5.Disposeoftheusedoilproperly.
ReplacingtheSparkPlugs
ServiceInterval:Every800hours
Therecommendedairgapis0.030inch(0.76mm)
ThecorrectsparkplugtouseisaChampionRC14YC.
Note:Thesparkplugusuallylastsalongtime;however,the
plugshouldberemovedandcheckedwhenevertheengine
malfunctions.
1.Cleantheareaaroundthesparkplugssoforeignmatter
cannotfallintothecylinderwhenthesparkplugis
removed.
2.Pullthesparkplugwiresoffofthesparkplugsand
removetheplugsfromthecylinderhead.
3.Checktheconditionofthesideelectrode,center
electrode,andcenterelectrodeinsulatortoensurethat
thereisnodamage.
Important:Replaceacracked,fouled,dirty,or
otherwisemalfunctioningsparkplug.Donotsand
blast,scrape,orcleanelectrodesbyusingawire
brushbecausegritmayeventuallyreleasefromthe
plug,fallintothecylinder,anddamagetheengine.
4.Settheairgapbetweenthecenterandsideofthe
electrodesat0.030inch(0.76mm)(Figure44).
Figure44
5.Installthecorrectlygappedsparkplugwithgasketseal,
andtightentheplugto200in-lb(23N-m).Ifatorque
wrenchisnotused,tightentheplugrmly.
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