Toro 74946 - Checking the Spark Arrester

CheckingtheSparkPlug
Important:Replacethesparkplug(s)whenithas:a
blackcoating,wornelectrodes,anoilylm,cracksor
reuseisquestionable.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inches).
B
A
g027479
Figure54
InstallingtheSparkPlug
Tightenthesparkplug(s)to24.4to29.8N·m(18to22ft-lb).
Figure55
CheckingtheSparkArrester
ForaModelwithaSparkArrester
ServiceInterval:Every50hours
WARNING
Hotexhaustsystemcomponentsmayignite
gasolinevaporsevenyoushutofftheengine.Hot
particlesexhaustedduringengineoperationmay
igniteammablematerials.Firemayresultin
personalinjuryorpropertydamage.
Donotrefuelorruntheengineunlessaspark
arresterisinstalled.
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Waitformufertocool.
3.Ifthereareanybreaksinthescreenorwelds,replace
thearrester.
4.Ifthescreenisplugged,removethearresterand
shakethelooseparticlesoutofthearresterandclean
thescreenwithawirebrush(soakitinsolventif
necessary).Installthearresterontheexhaustoutlet.
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