ServicingtheSparkPlug
ServiceInterval:Every200hours—Checkthespark
plug(s).
Every500hours—Replacethesparkplug(s).
Type:ChampionXC12YC
AirGap:0.76mm(0.03inch)
RemovingtheSparkPlug
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Cleantheareaaroundthebaseoftheplug(s)to
keepdirtanddebrisoutoftheengine.
4.Locateandremovethesparkplug(s)asshown
inFigure43.
g027478
Figure43
CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).
Alwaysreplacethesparkplug(s)whenithasa
blackcoating,wornelectrodes,anoilylm,or
cracks.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Setthegapto0.76mm(0.03inch).
g206628
Figure44
InstallingtheSparkPlug
g028109
Figure45
39
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