Toro 74760 - Spark Plug Check;Install and Cooling System Cleaning

CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).
Alwaysreplacethesparkplug(s)whenithas:a
blackcoating,wornelectrodes,anoilylm,or
cracks.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inch).
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Figure37
InstallingtheSparkPlug
Tightenthesparkplug(s)to25–30N-m(18.5–22.1
ft-lb).
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Figure38
CleaningtheCooling
System
Cleantheairintakescreenfromgrassanddebris
beforeeachuse.
1.Disengagetheblade-controlswitchandapply
theparkingbrake.
2.Stoptheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Removetheairlterfromtheengine.
4.Removetheengineshroud.
5.T opreventdebrisenteringtheairintake,install
theairltertothelterbase.
6.Cleandebrisandgrassfromtheparts.
7.Removetheairlterandinstalltheengine
shroud.
8.Installtheairlter.
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