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Alwaysstop engine,disconnectspark plugwire, and groundagainst
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 fastenersand make suretheseare tight.
ENGINE MAINTENANCE
Spark Plug
Forgoodperformance,the spark plug mustbe properlygappedand
freeof deposits.Replacethe sparkplugannually.
1. Disconnectthe cap fromthe sparkplug,andremoveanydirt from
the sparkplug area.
2. Usethe propersize sparkplugwrenchto removethe sparkplug.
f
Electrode
Figure14
NOTE: Replacewith a ChampionRC12YCsparkplug.
3. Checkthegapwitha wire gauge.See Figure14.Sparkpluggap
shouldbe0.020in(0.51ram).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 filter eachtime theengine is oper-
ated.Youwill needto cleanthe filter morefrequentlyif youoperatethe
enginein verydusty areas.
Cleantheair cleanerevery25hoursof operationor once a season.
Replacetheaircleanerannually.
Neverstartor runthe enginewith the aircleanerassemblyor theair
filterremoved.
Figure15
NOTE:Do notuse pressurizedair or solventsto cleanthe filter.Pres-
surizedair can damagethefilter and solventswill dissolvethefilter.
Theair cleanersystemusesa pleatedfilter.
1. Openthe cover(B). SeeFigure15.
2. Removethefilter (D).
3. Toloosendebris,gentlytap the filterona hardsurface,if the filter
is excessivelydirty, replacewitha newfilter.
4. Installthefilter (D).
5. CIosethe cover(B).
15
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