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Alwaysstop engine,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.
• Alladjustmentsshouldbe checkedat leastonceeach season.
• Periodicallycheckall fastenersandmakesurethesearetight.
ENGINE MAINTENANCE
Spark Plug
Forgood performance,the sparkplugmustbeproperlygappedand
freeof deposits.Replacethe sparkplugannually.
1. Disconnectthe cap fromthe sparkplug,andremoveanydirt from
the sparkplugarea.
2. Usethe propersizesparkplugwrenchto removethe sparkplug.
f
Electrode
Figure11
NOTE: Replacewitha ChampionRJ19LMspark plug.
3. Checkthegap with a wire gauge.SeeFigure11.Sparkplug gap
shouldbe 0.030in (0.76ram).If necessary,resetthe gap.
4. installandtightenthe sparkplugto the recommendedtorque(180
Ib-in[20 Nm]).
5. Attachthe sparkplug capto thespark plug.
Air Cleaner
A dirtyaircleanerwill restrictairflowto the carburetorandcausepoor
engineperformance,inspectthe filter eachtime theengine is oper-
ated.Youwill needto cleanthe filtermorefrequentlyif youoperatethe
enginein verydusty areas.
Cleantheair cleanerevery25hoursof operationor once a season.
Replacetheair cleanerannually.
Neverstartor run the enginewiththe aircleanerassemblyor theair
filterremoved.
NOTE:Do notuse pressurizedair or solventsto cleanthe filter.Pres-
surizedair can damagethefilter and solventswill dissolvethefilter.
1. Removethescrew(A)fromthe top of the airfilter assembly(B).
SeeFigure12.
2. Topreventdebrisfrom fallingintothe carburetor,carefullyremove
the airfilterassembly.
3. Removethefoamelement(C)from the air filter base.
Figure12
4. Washthe foamelementinliquiddetergentandwater.Squeeze
dry the foamelementin a cleancloth.
5. Saturatethe foam elementwith clean engineoil.To removethe
excessengineoil, squeezethe foamelementina cleancloth.
6. installthe foamelementinto theair filter base.
7. installthe airfilterassemblyonto thecarburetorand securewith
screw.
17
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