Toro 30934 - Servicing the Spark Plugs

Figure29
1.Oillter
2.Adapter
3.Applyathincoatofnewoiltotherubbergasketon
thereplacementlter(Figure29).
4.Installthereplacementoilltertothelteradapter,
turntheoillterclockwiseuntiltherubbergasket
contactsthelteradapter,thentightenthelteran
additional3/4turn(
Figure29).
5.Fillthecrankcasewiththepropertypeofnewoil;refer
toServicingtheEngineOil.
6.Runtheengineforabout3minutes,stoptheengine,
andcheckforoilleaksaroundtheoillteranddrain
valve.
7.Checktheengineoillevelandaddoilifneeded.
8.Wipeupanyspilledoil.
ServicingtheSparkPlugs
ServiceInterval:Every100hours—Checkthesparkplugs.
Ensurethattheairgapbetweenthecenterelectrodeandthe
sideelectrodeiscorrectbeforeinstallingeachsparkplug.Use
aspark-plugwrenchforremovingandinstallingthespark
plugsandagappingtoolorafeelergaugetocheckandadjust
theairgap.Installnewsparkplugsifnecessary.
Type:Champion®RCJ8Yorequivalent
AirGap:0.75mm(0.030inch)
RemovingtheSparkPlugs
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Disconnectthewiresfromthesparkplugs(
Figure30).
1
Figure30
1.Spark-plugwire/sparkplug
4.Cleanaroundthesparkplugstopreventdirtfrom
fallingintotheengineandpotentiallycausingdamage.
5.Removethesparkplugsandthemetalwashers.
CheckingtheSparkPlugs
1.Lookatthecenterofthesparkplugs(Figure31).If
youseelightbrownorgrayontheinsulator,theengine
isoperatingproperly.Ablackcoatingontheinsulator
usuallymeansthattheaircleanerisdirty.
2.Ifneeded,cleanthesparkplugwithawirebrushto
removecarbondeposits.
Figure31
1.Centerelectrode;insulator3.Airgap(nottoscale)
2.Sideelectrode
Important:Alwaysreplacethesparkplugswhen
theyhavewornelectrodes,anoilylm,ora
crackedinsulator.
3.Checkthegapbetweenthecenterelectrodeandthe
sideelectrode(
Figure31).Bendthesideelectrode
(Figure31)ifthegapisnotcorrect.
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