Use and Care Manual

B
A
g027479
Figure32
InstallingtheSparkPlug
Tightenthesparkplugto25to29N-m(18to22ft-lb).
Figure33
CleaningtheBlowerHousing
Toensurepropercooling,makesurethegrassscreen,cooling
ns,andotherexternalsurfacesoftheenginearekeptclean
atalltimes.
Annually,orevery100hoursofoperation(moreoften
underextremelydusty,dirtyconditions),removetheblower
housing,andanyothercoolingshrouds.Cleanthecooling
nsandexternalsurfacesasnecessary.Makesurethecooling
shroudsareinstalled.Torquetheblowerhousingscrewsto
7.5N-m(5.5ft-lb).
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
blade-controlswitch.
2.Movethemotion-controlleversoutwardtothepark
position,stoptheengine,removethekey,andwaitfor
allmovingpartstostopbeforeleavingtheoperating
position.
3.Replacethein-linelter(Figure34).
28