Operator's Manual

InstallingtheSparkPlug
Important:Ensurethatthegapbetweentheside
andcenterelectrodesiscorrectbeforeinstalling
thesparkplug.
1.Threadthesparkplugclockwiseintothe
spark-plugholebyhand.
Note:Avoidcross-threadingthesparkplugwith
thethreadsofthespark-plughole.
2.Rotatethesparkplugclockwiseusinga21mm
(13/16inch)spark-plugwrenchuntiltheplug
andsealingwasherareseated(Figure47).
3.Tightenthesparkplugasfollows:
•Wheninstallinganin-servicesparkplug,
tightenthepluganadditional1/8to1/4turn.
•Wheninstallinganewsparkplug,tightenthe
pluganadditional1/2turn.
Important:Aloosesparkplugmaycause
thecylindertooverheat.Anover-tightspark
plugmaydamagethethreadsinthecylinder
head.
4.Pushthespark-plugwireontotheterminalofthe
sparkplug(Figure46).
CleaningtheSparkArrester
ServiceInterval:Every100hours
Note:Asparkarresterisavailableasanoption.If
yourequireasparkarrester,contactyourAuthorized
ServiceDealer.GenuineT orosparkarrestersare
approvedbytheUSDAForestryService.
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(Figure49).
g019331
Figure49
1.Deector(if
applicable)
5.Exhaustpipe
9.Sparkarrester
2.Protector
6.Nut(8mm)10.Screws(5mm)
3.Screw(6mm)7.Gasket
11.Exhaustport
4.Mufer8.Bolt(8mm)12.Screw(4mm)
6.Removethe3screws(4mm)fromtheexhaust
deector,andremovethedeector(Figure49).
34