Toro Z Master 6000 Professional Series - Servicing the Spark Plug

ServicingtheSparkPlug
ServiceInterval:Every100hours
Makesurethattheairgapbetweenthecenterand
sideelectrodesiscorrectbeforeinstallingthespark
plug.Useasparkplugwrenchforremovingand
installingthesparkplug(s)andagappingtool/feeler
gaugetocheckandadjusttheairgap.Installanew
sparkplug(s)ifnecessary.
Type:NGK
®
BPR4ESorequivalent
AirGap:0.76mm(0.03inch)
RemovingtheSparkPlug
1.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
2.Disengagetheblade-controlswitch(PTO),move
themotion-controlleverstotheNEUTRAL-LOCK
position,andengagetheparkingbrake.
3.Removethehydraulic-unitshroudandthe2
boltsattachedtoit(Figure58).
Note:Thisgivesyouaccesstothefrontspark
plug.
g012432
Figure58
1.Hydraulic-unitshroud2.Loosenthese2bolts.
4.Removethesparkplug.
g008803
g027478
Figure59
5.Installthehydraulic-unitshroud(Figure58).
CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).
Alwaysreplacethesparkplug(s)whenithas:a
blackcoating,wornelectrodes,anoilylm,or
cracks.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Setthegapto0.76mm(0.03inch).
g027479
Figure60
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