Toro 74995 - Checking the Spark Plug; Installing the Spark Plug; Checking the Spark Arrester (if equipped)

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Figure58
5.Installthelefthydraulicunitshroud(Figure57).
CheckingtheSparkPlug
Important:Replacethesparkplug(s)whenit
has:ablackcoating,wornelectrodes,anoilylm,
cracksorreuseisquestionable.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inches).
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Figure59
InstallingtheSparkPlug
Tightenthesparkplug(s)to24.4to29.8N·m(18to
22ft-lb).
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Figure60
Checkingthe
SparkArrester
(ifequipped)
ServiceInterval:Every50hours
WARNING
Hotexhaustsystemcomponentsmayignite
gasolinevaporsafteryoushutofftheengine.
Hotparticlesexhaustedduringengine
operationmayigniteammablematerials.
Firemayresultinpersonalinjuryorproperty
damage.
Donotrefuelorruntheengineunlessaspark
arresterisinstalled.
1.Stopengine,waitforallmovingpartstostop,
andremovekey.Engageparkingbrake.
2.Waitformufertocool.
3.Ifthereareanybreaksinthescreenorwelds,
replacethearrester.
4.Ifthescreenisplugged,removethearrester
andshakethelooseparticlesoutofthearrester
andcleanthescreenwithawirebrush(soakit
insolventifnecessary).Installthearresteron
theexhaustoutlet.
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