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Alwaysstopengine,disconnectsparkplugwire,andgroundagainst
enginebeforeperformingany type of maintenanceon yourmachine.
GENERAL RECOMMENDATIONS
• Alwaysobservesafetyruleswhenperformingany maintenance.
• Thewarrantyon thislawnmowerdoesnot coveritemsthathave
beensubjectedto operatorabuseor negligence.To receivefull
valuefromwarranty,operatormustmaintainthe equipmentas
instructedhere.
• Changingof engine-governedspeedwill voidenginewarranty.
• Alladjustmentsshouldbecheckedat leastonceeach season.
• Periodicallycheckall fastenersandmakesurethesearetight.
ENGINE MAINTENANCE
Spark Plug
Forgoodperformance,the spark plug mustbe properlygappedand
freeof deposits.Replacethe sparkplugannually.
1. Disconnectthe cap fromthe sparkplug,andremoveanydirt from
the sparkplugarea.
2. Use the propersize sparkplug wrenchto removethe spark plug.
NOTE: Replacewitha Champion®RC12YCsparkplug.
3. Checkthegap with a wire gauge.See Figure12.Sparkpluggap
shouldbe0.020in(0.51ram).If necessary,resetthe gap.
4. install and tightenthe sparkplug to the recommendedtorque(180
Ib-in[20 Nm]).
5. Attachthe sparkplug capto thesparkplug.
Air Cleaner
A dirty air cleanerwill restrictair flow to the carburetorand causepoor
engineperformance,inspectthe filter eachtime theengine is oper-
ated.Youwill needto cleanthe filtermorefrequentlyif youoperatethe
enginein verydusty areas.
Cleantheair cleanerevery50hoursof operationoronce a season.
Replacetheaircleanerannually.
f
Electrode
Porcelain
Figure12
Fastener
Cover
Air Filter
Neverstartor runthe enginewiththe aircleanerassemblyor theair
filterremoved.
NOTE:Do notuse pressurizedair or solventsto cleanthe filter.Pres-
surizedair can damagethefilter and solventswill dissolvethefilter.
1. Removethefastenerand air cleanercover.See Figure13.
2. Removethepre-cleanerand filter.
3. Toloosendebris,gentlytap the filter on a hard surface,if filter is
excessivelydirty, replacewitha newfilter.
Figure13
4. Washthe pre-cleanerin liquiddetergentand waterand allowit to
thoroughlyair dry. Do not oil the pre-cleaner.
5. Assemblethe dry pre-cleanerto the filter.
6. installthe filter and pre-cleanerinto the base.Makesurefilterfits
securelyin the base.
7. installair filtercoverand securewith fastener.Makesurethe
fasteneris tight.
17
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