Toro Z Master G3 - Servicing the Spark Plug

ServicingtheSparkPlug
ServiceInterval:Every100hours
Makesuretheairgapbetweenthecenterandside
electrodesiscorrectbeforeinstallingthesparkplug.
Useasparkplugwrenchforremovingandinstalling
thesparkplug(s)andagappingtool/feelergaugeto
checkandadjusttheairgap.Installanewsparkplug(s)
ifnecessary.
Type:NGK
®
BPR4ESorequivalent
AirGap:0.030inch(0.75mm)
RemovingtheSparkPlug
1.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
2.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
3.Removetwoboltssecuringthehydraulicunitshroud
andremoveitFigure52.Thisgivesyouaccessto
thefrontsparkplug.
Figure52
1.Removethetwobolts
securingthehydraulicunit
shroud
2.Hydraulicunitshroud
4.Removethesparkplugs.
Figure53
5.Installthelefthandhydraulicunitshroud(Figure52).
CheckingtheSparkPlugs
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
Figure54
InstallingtheSparkPlugs
Tightenthesparkplug(s)to16ft.-lb(22N-m).
Figure55
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