Toro 08887 - Replacing the Spark Plugs; Cleaning the Cylinder Head Fins

5.Installthecoverorientingtherubberoutletvalvein
adownwardposition-betweenapproximately5:00
to7:00whenviewedfromtheend.
6.Securethelatches.
ReplacingtheSparkPlugs
ServiceInterval:Every800hours
Replacethesparkplugsafterevery800operatinghours
oryearly,whicheveroccursrst.
Type:ChampionRC12YC(orequivalent)
AirGap:0.030in.(0.76mm)
Note:Thesparkplugusuallylastsalongtime;however,
theplugshouldberemovedandcheckedwheneverthe
enginemalfunctions.
1.Cleantheareaaroundthesparkplugssothatforeign
mattercannotfallintothecylinderwhenthespark
plugisremoved.
2.Pullthesparkplugwiresoffofthesparkplugsand
removetheplugsfromthecylinderhead.
3.Checktheconditionofthesideelectrode,center
electrode,andcenterelectrodeinsulatortoensure
thatthereisnodamage.
Important:Acracked,fouled,dirty,or
otherwisemalfunctioningsparkplugmustbe
replaced.Donotsand-blast,scrape,orclean
theelectrodesbyusingawirebrushbecause
gritmayeventuallyreleasefromtheplugand
fallintothecylinder.Theresultisusuallya
damagedengine.
4.Settheairgapbetweenthecenterandsideofthe
electrodesat0.030in.(0.76mm)(
Figure18).Install
thecorrectlygappedsparkplugwithgasketseal,and
tightentheplugto200in-lb(23N⋅m).Ifatorque
wrenchisnotused,tightentheplugrmly.
Figure18
CleaningtheCylinderHead
Fins
Toavoidoverheatingandpossibleenginedamage,the
coolingnsonthecylinderheadmustbekeptclean.
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