Operator's Manual

CheckingtheSparkPlug
Important:Donotcleanthesparkplug.Always
replacethesparkplugwhenithasablackcoating,
wornelectrodes,anoilylm,orcracks.
Note:Ifyouseelightbrownorgrayontheinsulator,
theengineisoperatingproperly.Ablackcoatingon
theinsulatorusuallymeansthattheaircleanerisdirty.
Setthegapto0.7to0.8mm(0.028to0.031inch).
g206628
Figure47
InstallingtheSparkPlug
Important:Ensurethatthegapbetweentheside
andcenterelectrodesiscorrectbeforeinstalling
thesparkplug.
1.Threadthesparkplugclockwiseintothe
spark-plugholebyhand.
Note:Avoidcross-threadingthesparkplugwith
thethreadsofthespark-plughole.
2.Rotatethesparkplugclockwiseusingthe
designatedspark-plugwrenchuntiltheplugand
sealingwasherareseated(Figure46).
3.Tightenthesparkplugasfollows:
•Wheninstallinganin-servicesparkplug,
tightenthepluganadditional1/8to1/4turn.
•Wheninstallinganewsparkplug,tightenthe
pluganadditional1/2turn.
4.Pushthespark-plugwireontotheterminalofthe
sparkplug(Figure45).
CleaningtheSparkArrester
ServiceInterval:Every100hours
Note:Asparkarresterisavailableasanoption.If
yourequireasparkarrester,contactyourAuthorized
ToroServiceDealer.
GenuineT orosparkarrestersareapprovedbythe
USDAForestryService.
WARNING
Iftheenginehasbeenrunning,themufer
willbehot.Contactwithhotsurfacesmay
causepersonalinjury.
Keepyourhands,feet,face,clothingand
otherbodypartsawayfromthemuferand
otherhotsurfacesuntiltheyhavecooled.
1.Parkthemachineonalevelsurfaceandshut
offtheengine.
2.Allowtheenginetocool.
3.Disconnectthewirefromthesparkplug;referto
DisconnectingtheSpark-PlugWire(page29).
4.Removethedividerplate(ifequipped);referto
RemovingtheDividerPlate(page29).
5.Removethe2nuts(8mm)andremovethe
muferfromthecylinder(Figure48).
Note:Thelocationandsizeofpartsmaybe
differentforyourmachine,buttheprocedureis
thesame.
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