Exmark Radius X Series - Removing the Spark Plug; Checking the Spark Plug; Installing the Spark Plug; Servicing an Exmark Engine

Maintenance
RemovingtheSparkPlug
1.DisengagethePTOandensuretheparkingbrake
isengaged.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Disconnectthewirefromthesparkplug.
g027478
Figure41
4.Cleanaroundthesparkplugtopreventdirtfrom
fallingintotheengineandpotentiallycausing
damage.
5.Removethesparkplugandmetalwasher.
CheckingtheSparkPlug
1.Inspectthesparkplug
Note:Ifyouseelightbrownorgrayonthe
insulator,theengineisoperatingproperly.A
blackcoatingontheinsulatorusuallymeansthe
aircleanerisdirty.
Important:DoNotcleanthesparkplug.
Alwaysreplacethesparkplugwhenithasa
blackcoating,wornelectrodes,anoilylm,
orcracks.
g027479
Figure42
2.Checkthegapbetweenthecenterandside
electrodes.
3.Setthegapto0.030inch(.76mm).
InstallingtheSparkPlug
1.Installthesparkplug.Makesurethattheairgap
issetcorrectly.
2.Tightenthesparkplugto18to22ft-lb(25to29
N-m).
g027938
Figure43
3.Pushthewireontothesparkplug.
ServicinganExmarkEngine
ServicingtheAirCleanerwith
CanisterStyleAirFilter
ServiceInterval:Every250hours—Replace
theairlter(moreoften
underextremelydusty,
dirtyconditions)(Exmark
engine).
Note:Servicetheaircleanermoreoftenunder
extremelydusty,dirtyconditions.
1.Parkthemachineonalevelsurface,disengagethe
bladecontrolswitch,movethemotioncontrol
leverstothebrakeposition,stoptheengine,
removethekey,andwaituntilallmovingparts
stopbeforeleavingtheoperatingposition.
2.Releasethelatchesontheaircleanerandpull
theaircleanercoverofftheair-cleanerbody(see
Figure44).
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