Operator's Manual

Figure33
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
InstallingtheSparkPlug
1.Installthesparkplug.Makesurethattheairgapisset
correctly.
2.Tightenthesparkplugto18-22ft-lb(25-29N-m).
3.Pushthewireontothesparkplug(Figure32).
CleaningtheBlowerHousing
ServiceInterval:Beforeeachuseordaily—Checkairintake
andcoolingareas,cleanasnecessary.
Every100hours—Cleantheblowerhousing(more
oftenunderextremelydusty,dirtyconditions).
Toensurepropercooling,makesurethegrassscreen,cooling
ns,andotherexternalsurfacesoftheenginearekeptclean
atalltimes.
Cleanthecoolingnsandexternalsurfacesasnecessary.
Makesurethecoolingshroudsarereinstalled.
Important:Operatingtheenginewithablockedgrass
screen,dirtyorpluggedcoolingns,and/orcooling
shroudsremoved,willcauseenginedamagedueto
overheating.
FuelSystem
Maintenance
DANGER
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areorexplosion
fromgasolinecanburnyouandothersandcan
damageproperty.
•Performanyfuelrelatedmaintenancewhenthe
engineiscold.Dothisoutdoorsinanopenarea.
Wipeupanygasolinethatspills.
•Neversmokewhendraininggasoline,andstay
awayfromanopenameorwhereasparkmay
ignitethegasolinefumes.
ReplacingtheIn-lineFuel
Filter
ServiceInterval:Every100hours—Replacethein-linefuel
lter
Neverinstalladirtylterifitisremovedfromthefuelline.
1.Parkthemachineonalevelsurfaceanddisengagethe
bladecontrolswitch.
2.Movethemotioncontrolleversoutwardtothepark
position,stoptheengine,removethekey,andwaitfor
allmovingpartstostopbeforeleavingtheoperating
position.
3.Locatethefuellteronthesideoftheengineasshown
in
Figure34.
g017575
1
2
3
4
5
Figure34
1.Fuellinefromtank
4.Fuellinetoengine
2.In-lineFuellter
5.Hoseclamp
3.Flowdirectionarrow
29