Toro 74923TE - Servicing the Spark Plug

ServicingtheSparkPlug
ServiceInterval:Every100hours
Makesuretheairgapbetweenthecenterandsideelectrodes
iscorrectbeforeinstallingthesparkplug.Useasparkplug
wrenchforremovingandinstallingthesparkplug(s)anda
gappingtool/feelergaugetocheckandadjusttheairgap.
Installanewsparkplug(s)ifnecessary.
Type:Champion
®
RC12YCorequivalent
AirGap:0.030inch(0.76mm)
RemovingtheSparkPlug
Important:Thefastenersonthecoversofthismachine
aredesignedtoremainonthecoverafterremoval.
Loosenallofthefastenersoneachcoverafewturnsso
thatthecoverisloosebutstillattached,thengoback
andloosenthemuntilthecovercomesfree.Thiswill
preventyoufromaccidentallystrippingtheboltsfree
oftheretainers.
1.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
2.DisengagethePTO,movethemotioncontrolleversto
theneutrallockedpositionandsettheparkingbrake.
3.Removethehydraulicunitshroudandthe2bolts
attachedtoit(
Figure55).
Note:Thisgivesyouaccesstothefrontsparkplug.
G012432
2 1 2
Figure55
1.Hydraulicunitshroud2.Loosenthesetwobolts.
4.Removethesparkplug.
G008803
1
2
G020130
Figure56
5.Installthelefthandhydraulicunitshroud(Figure55).
CheckingtheSparkPlug
Important:Nevercleanthesparkplug(s).Always
replacethesparkplug(s)whenithas:ablackcoating,
wornelectrodes,anoilylm,orcracks.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.030inches(0.76mm).
1
2
G020131
Figure57
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