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Alwaysstop engine,disconnectsparkplugwire,andgroundagainst
enginebeforeperformingany typeof maintenanceon yourmachine.
GENERAL RECOMMENDATIONS
• Alwaysobservesafetyruleswhenperformingany maintenance.
• Thewarrantyon thislawnmowerdoesnot coveritemsthat have
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 spark plug annually.
1. Disconnectthe cap fromthe sparkplug,andremoveanydirt from
the sparkplug area.
2. Usethe propersize sparkplug wrenchto removethe spark plug.
f
Electrode
Figure12
NOTE: Replacewith a ChampionRJ19LMsparkplug.
3. Checkthegap with a wire gauge.See Figure12.Sparkplug gap
shouldbe 0.030in (0.76ram).If necessary,resetthe gap.
4. installandtightenthe sparkplugto the recommendedtorque(180
Ib-in[20 Nm]).
5. Attachthe sparkplugcapto thesparkplug.
Air Cleaner
A dirtyaircleanerwill restrictair flow to the carburetorand causepoor
engineperformance,inspectthe filtereachtimetheengineis oper-
ated.Youwill needto cleanthe filtermorefrequentlyif youoperatethe
enginein verydusty areas.
Cleantheair cleanerevery25hoursof operationoronce a season.
Replacetheair cleanerannually.
Neverstartor runthe enginewith the aircleanerassemblyor theair
filterremoved.
NOTE:Do notuse pressurizedairor solventsto cleanthe filter.Pres-
surizedair can damagethefilter and solventswill dissolvethefilter.
1. Removethescrew(A) from the top of the air filter cover(B). See
Figure13.
2. Topreventdebrisfrom fallingintothe carburetor,carefullyremove
the air filter cover.
3. Removethefoamelement(C)fromthe airfilter base.
Figure13
4. Washthe foam elementin liquid detergentandwater.Squeeze
dry the foamelementin a cleancloth.
5. Saturatethe foamelementwithclean engineoil.To removethe
excessengineoil, squeezethe foamelementina cleancloth.
6. installthe foamelementinto theair filter base.
7. installthe air filter coveronto theair filter baseand securewith
screw.
17
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