Toro Spray Master Series - Servicing the Spark Plug

ServicingtheSparkPlug
ServiceInterval:Every100hours
SparkPlugSpecication
Sparkplugtype:Champion
®
RJ12
RemovingtheSparkPlug
1.Preparethemachineformaintenance;referto
PreparingtheMachine(page51).
2.RemovethesparkplugasshowninFigure77.
g312977
g027478
Figure77
CheckingtheSparkPlug
Spark-pluggap:0.76mm(0.030inch)
Important:Donotcleanthesparkplug(s).
Alwaysreplacethesparkplug(s)whenithasa
blackcoating,wornelectrodes,anoilylm,or
cracks.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Useagappingtool/feelergaugetocheckandadjust
theairgapto0.76mm(0.030inch).
g206628
Figure78
InstallingtheSparkPlug
Tightenthesparkplugasfollows:
•Newsparkplug—12to15N∙m(8.7to10.8ft-lb)
•In-servicesparkplug—23to27N∙m(16.6to19.5
ft-lb)
g313515
Figure79
58