Toro 74633 - Servicing the Spark Plug

G023857
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2
Figure31
1.Oillter
2.Adapter
11.Applyathinlmofcleanoiltotherubbergasketon
thenewlter.
12.Installthereplacementoilltertotheadapter.
13.Turntheoillterclockwiseuntiltherubbergasket
contactsthepad,thentightenthelteranadditional
3/4to1turn(Figure31).
14.Wipeupanyexcessoilontheframe.
15.Whenoilhasdrainedcompletely,installtheoildrain
plug.
16.Torquetheplugto14N-m(125in-lb).
17.Wipeupanyexcessoil(
Figure30).
Note:Disposeoftheusedoilatarecyclingcenter.
18.Slowlypourapproximately80%ofthespeciedoil
intothellertube(Figure29).
19.Installtheoil-llcap/dipstick(Figure29).
20.Checktheoillevel(Figure29).
21.SlowlyaddadditionaloiltobringittotheFullmark.
22.Installtheoil-llcap/dipstick(
Figure29).
ServicingtheSparkPlug
ServiceInterval:Every200hours—Checksparkplug(s)
conditionandgap.
Every500hours—Replacethesparkplug(s).
ThesparkplugisRFIcompliant.Equivalentalternatebrand
plugscanalsobeused.
Type:ChampionXC12YC(orequivalent)
AirGap:0.76mm(0.03inch)
RemovingtheSparkPlug
1.Disengagetheblade-controlswitch,movethemotion
controlsoutwardtotheparkposition,stoptheengine,
andremovethekey.
2.Beforeremovingthesparkplug(s),cleanthearea
aroundthebaseoftheplugtokeepdirtanddebrisout
oftheengine.
3.Pullthewireoffthesparkplug(s)(
Figure32).
4.Removethesparkplug(s)andthemetalwasher.
Figure32
1.Sparkplugandwirelocations
CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).Always
replacethesparkplug(s)whenithas:ablackcoating,
wornelectrodes,anoilylm,orcracks.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inch).
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