Toro Workman 07040 - Servicing the Spark Plug

ChangingtheEngineOil
1.Startthemachineandlettheenginerunfora
fewminutes.
2.Parkthemachineonalevelsurface.
3.Engagetheparkingbrake.
4.Shutofftheengineandremovethekey.
5.Raisethecargoboxandsecureitwiththe
proprod;refertoRaisingtheCargoBedtothe
ServicePosition(page21).
6.ChangetheengineoilasshowninFigure42.
g192770
Figure42
ServicingtheSparkPlug
CheckingandReplacingtheSpark
Plug
ServiceInterval:Every100hours/Yearly(whichever
comesrst)Replacethesparkplug
ifnecessary.
CarburetorModelSparkPlugType:Champion
XC12YC
EFIModelSparkPlugType:ChampionRC12LC4
AirGap:0.76mm(0.03inch)
Important:Youmustreplaceacracked,fouled,
dirty,ormalfunctioningsparkplug.Donot
sand-blast,scrape,orcleanelectrodesbyusing
awirebrushbecausegritmayeventuallyrelease
fromtheplugandfallintothecylinder.Theresult
isusuallyadamagedengine.
Note:Thesparkplugusuallylastsalongtime;
however,theplugshouldberemovedandchecked
whenevertheenginemalfunctions.
1.Cleantheareaaroundthesparkplugsothat
foreignmattercannotfallintothecylinderwhen
youremovethesparkplug.
2.Pullthewireofftheterminalofthesparkplug.
3.Removetheplugfromthecylinderhead.
4.Checktheconditionofthesideelectrode,center
electrode,andcenterelectrodeinsulatorto
ensurethatthereisnodamage(Figure43).
Note:Donotuseadamagedorwornspark
plug.Replaceitwithanewsparkplugofthe
speciedtype.
g001470
Figure43
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
5.Settheairgapbetweenthecenterandsideof
theelectrodesat0.76mm(0.03inch)asshown
inFigure43.
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