10.Applyathinlmofcleanoiltotherubbergasketon
thenewlter.
11.Installthereplacementoilltertothemountingpad.
Turntheoillterclockwiseuntiltherubbergasket
contactsthepad,thentightenthelteranadditional
1/2to3/4turn(Figure27).
12.Slowlypourapproximately80%ofthespeciedoil
intothellertube.
13.Installtheoilllcap/dipstickandpushrmlyinto
place.
14.Checktheoillevel(Figure25);refertotheChecking
theOilLevelsection.
15.Slowlyaddadditionaloiltobringittothefullmark.
16.Installtheoilllcap/dipstickandpushrmlyinto
place.
ServicingtheSparkPlug
ServiceInterval:Every200hours/Every2years
(whichevercomesrst)
Every500hours
Asstatedinthemaintenanceintervals,removethespark
plug,checkcondition,andresetthegaporreplacewith
anewplugasnecessary.
ThesparkplugisRFIcompliant.Equivalentalternate
brandplugscanalsobeused.
Type:ChampionXC12YC
AirGap:0.030inch(0.76mm)
RemovingtheSparkPlug
1.Disengagethebladecontrolswitch,movethe
motioncontrolsoutwardtotheparkposition,stop
theengine,andremovethekey.
2.Pullthewireoffofthesparkplug(Figure29).Clean
aroundthesparkplugtopreventdirtfromfalling
intotheengineandpotentiallycausingdamage.
Note:Duetothedeeprecessaroundthespark
plug,blowingoutthecavitywithcompressedair
isusuallythemosteffectivemethodforcleaning.
Thesparkplugismostaccessiblewhentheblower
housingisremovedforcleaning.
3.Removethesparkplugandmetalwasher.
Figure29
1.Sparkplugandwirelocation
CheckingtheSparkPlug
1.Lookatthecenterofthesparkplug(Figure30).
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Important:Nevercleanthesparkplug.Always
replacethesparkplugwhenithasablack
coating,wornelectrodes,anoilylm,orcracks.
2.Checkthegapbetweenthecenterandsideelectrodes
(Figure30).Bendthesideelectrodeifthegapisnot
correct.
Figure30
1.Sideelectrode3.Airgap(nottoscale)
2.Centerelectrodeinsulator
InstallingtheSparkPlug
1.Installthesparkplug.Makesurethattheairgapis
setcorrectly.
2.Tightenthesparkplugto15ft-lb(20N-m).
3.Pushthewireontothesparkplug(Figure29).
CleaningtheBlowerHousing
ServiceInterval:Every100hours/Yearly(whichever
comesrst)Moreoftenunderdirty
conditions.
31