Toro 30488 - Servicing the Spark Plugs

4.Installthereplacementoilltertothelteradapter,
turntheoillterclockwiseuntiltherubbergasket
contactsthelteradapter,thentightenthelteran
additional3/4turn(Figure32).
5.Fillthecrankcasewiththepropertypeofnewoil;refer
toServicingtheEngineOil(page26).
6.Runtheengineforabout3minutes,stoptheengine,
andcheckforoilleaksaroundtheoillterandthe
drainvalve.
7.Checktheengine-oillevelandaddoilifneeded.
8.Wipeupanyspilledoil.
ServicingtheSparkPlugs
ServiceInterval:Every100hours
Ensurethattheairgapbetweenthecenterandsideelectrodes
iscorrectbeforeinstallingthesparkplug.Useasparkplug
wrenchforremovingandinstallingthesparkplugsanda
gappingtool/feelergaugetocheckandadjusttheairgap.
Installanewsparkplugsifnecessary.
Type:Champion®RCJ8YorequivalentAirGap:0.75mm
(0.03inch)
RemovingtheSparkPlugs
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Disconnectthewiresfromthesparkplugs(Figure33).
1
Figure33
1.Spark-plugwire/sparkplug
4.Cleanaroundthesparkplugstopreventdirtfrom
fallingintotheengineandpotentiallycausingdamage.
5.Removethesparkplugsandthemetalwashers.
CheckingtheSparkPlugs
1.Lookatthecenterofthesparkplugs(Figure34).
Note:Ifyouseelightbrownorgrayontheinsulator,
theengineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeansthattheaircleanerisdirty.
2.Ifneeded,cleanthesparkplugwithawirebrushto
removecarbondeposits.
Figure34
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
Important:Alwaysreplacethesparkplugswhen
ithaswornelectrodes,anoilylmonit,orhas
cracksintheporcelain.
3.Checkthegapbetweenthecenterandsideelectrodes
(Figure34).Bendthesideelectrode(Figure34)ifthe
gapisnotcorrect.
InstallingtheSparkPlugs
1.Installthesparkplugsandthemetalwasher.Ensure
thattheairgapissetcorrectly.
2.Tightenthesparkplugsto22N-m(16ft-lb).
3.Connectthewirestothesparkplugs(Figure34).
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