Toro 71254 - Spark Plug Servicing and Checks

PaperElement:
1.Tapthepaperelementonasolidatsurfaceandblow
itoutfromtheinsidewithcompressedairtoremove
dustanddirt.
2.Inspecttheelementfortears,anoilylm,anddamage
totherubberseal.
Important:Donotcleanthepaperelement
withpressurizedairorliquids,suchassolvents,
gasoline,orkerosene.Replacethepaperelement
ifitisdamagedorcannotbecleanedthoroughly.
InstallingtheFoamandPaperElements
Important:Topreventenginedamage,alwaysoperate
theenginewiththecompletefoamandpaperair-cleaner
assemblyinstalled.
1.Blocktheinletductwitharagtopreventdustand
debrisfromenteringtheengine.
2.Cleantheinsideoftheair-cleanerhousingofalldirt,
dust,anddebris.
3.Removetheragfromtheinletduct.
4.Placethefoamelementandpaperelementintothe
blowerhousing.
5.Alignthetabsontheair-cleanercoverwiththeslotsof
theblowerhousing(
Figure23).
6.Hookthehandleontothecoverandpressdownon
thehandletolockthecoverinplace.
7.Closethehood.
ServicingtheSparkPlug
ServiceInterval:Every50hours—Checkthesparkplug.
Every100hours
Ensurethattheairgapbetweenthecenterandsideelectrodes
iscorrectbeforeinstallingthesparkplug.Useaspark-plug
wrenchforremovingandinstallingthesparkpluganda
gappingtoolorfeelergaugetocheckandadjusttheairgap.
Installanewsparkplugifnecessary.
Type:ChampionQC12YCorequivalent
AirGap:0.76mm(0.030inch)
RemovingtheSparkPlug
1.Disengagethebladecontrol(PTO).
2.Stoptheengine,waitforallmovingpartstostop,and
removethekeybeforeleavingtheoperatingposition.
3.Openthehood.
4.Disconnectthewirefromthesparkplug(
Figure24).
Figure24
1.Spark-plugwire
5.Cleanaroundthesparkplugtopreventdirtfromfalling
intotheengineandpotentiallycausingdamage.
6.Removethesparkplugandmetalwasher.
CheckingtheSparkPlug
1.Inspectthesparkplug(Figure25).
Note:Ifyouseelightbrownorgrayontheinsulator,
theengineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeansthattheaircleanerisdirty.
Figure25
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
Important:Donotcleanthesparkplug.Always
replacethesparkplugwhenithasablackcoating,
wornelectrodes,anoilylm,orcracks.
2.Checkthegapbetweenthecenterandsideelectrodes
(
Figure25).Bendthesideelectrodeifthegapisnot
correct.
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