Toro 30674 - Servicing the Spark Plugs

Figure31
1.Oillter
2.Adapter
3.Applyathincoatofnewoiltotherubbergasketon
thereplacementlter(Figure31).
4.Installthereplacementoilltertothelteradapter,
turntheoillterclockwiseuntiltherubbergasket
contactsthelteradapter,thentightenthelteran
additional3/4turn(
Figure31).
5.Fillthecrankcasewiththepropertypeofnewoil;refer
toServicingtheEngineOil.
6.Runtheengineforabout3minutes,stoptheengine,
andcheckforoilleaksaroundtheoillteranddrain
valve.
7.Checktheengineoillevelandaddoilifneeded.
8.Wipeupanyspilledoil.
ServicingtheSparkPlugs
ServiceInterval/Specication
ServiceInterval:Every100hours—Checkthesparkplugs.
Ensurethattheairgapbetweenthecenterandsideelectrodes
iscorrectbeforeinstallingthesparkplugs.Useasparkplug
wrenchforremovingandinstallingthesparkplugsanda
gappingtool/feelergaugetocheckandadjusttheairgap.
Installanewsparkplugsifnecessary.
Type:Champion®RCJ8YorequivalentAirGap:0.75mm
(0.030inch)
RemovingtheSparkPlugs
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Disconnectthewiresfromthesparkplugs(
Figure32).
1
Figure32
1.Spark-plugwire/sparkplug
4.Cleanaroundthesparkplugstopreventdirtfrom
fallingintotheengineandpotentiallycausingdamage.
5.Removethesparkplugsandthemetalwashers.
CheckingtheSparkPlugs
1.Lookatthecenterofthesparkplugs(Figure33).If
youseelightbrownorgrayontheinsulator,theengine
isoperatingproperly.Ablackcoatingontheinsulator
usuallymeansthattheaircleanerisdirty.
2.Ifneeded,cleanthesparkplugwithawirebrushto
removecarbondeposits.
Figure33
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
Important:Alwaysreplacethesparkplugswhen
ithaswornelectrodes,anoilylmonit,orhas
cracksintheporcelain.
3.Checkthegapbetweenthecenterandsideelectrodes
(
Figure33).Bendthesideelectrode(Figure33)ifthe
gapisnotcorrect.
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