Toro Z Master 74925TE - Servicing the Spark Plug

ServicingtheSparkPlug
ServiceInterval:Every100hours
Makesuretheairgapbetweenthecenterandside
electrodesiscorrectbeforeinstallingthesparkplug.
Useasparkplugwrenchforremovingandinstalling
thesparkplug(s)andagappingtool/feelergaugeto
checkandadjusttheairgap.Installanewsparkplug(s)
ifnecessary.
Type:Champion
®
RC12YCorequivalent
AirGap:0.030inch(0.76mm)
RemovingtheSparkPlug
Important:Thefastenersonthecoversofthis
machinearedesignedtoremainonthecoverafter
removal.Loosenallofthefastenersoneachcovera
fewturnssothatthecoverisloosebutstillattached,
thengobackandloosenthemuntilthecover
comesfree.Thiswillpreventyoufromaccidentally
strippingtheboltsfreeoftheretainers.
1.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
2.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
3.Removethehydraulicunitshroudandthe2bolts
attachedtoit(
Figure53).Thisgivesyouaccessto
thefrontsparkplug.
G012432
2 1 2
Figure53
1.Hydraulicunitshroud2.Loosenthesetwobolts
4.Removethesparkplug.
G008803
Figure54
5.Installthelefthandhydraulicunitshroud(Figure53).
CheckingtheSparkPlug
Important:Nevercleanthesparkplug(s).Always
replacethesparkplug(s)whenithas:ablack
coating,wornelectrodes,anoilylm,orcracks.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Setthegapto0.030inches(0.76mm).
G008794
1
2
Figure55
40