Manual

1. Removethesparkplugbootanduse a sparkplugwrenchto
removetheplug.See Figure23.
2. Visuallyinspectthe sparkplug.Discardthe sparkplugif thereis
apparentwear,orif the insulatoris crackedor chipped.Cleanthe
sparkplugwitha wirebrush if it is to be reused.
3. Measurethe pluggapwitha feelergauge.Correctas necessary
by bendingsideelectrode.SeeFigure24.The gapshouldbeset
to 0.030in.
4. Checkthatthe sparkplugwasheris ingoodconditionandthread
the sparkplugin by handto preventcrossthreading.
5. Afterthesparkplugis seated,tightenwitha sparkplugwrenchto
compressthewasher.
NOTE:Wheninstallinga newsparkplug,tighten1/2turnafterthe
sparkplugseatsto compressthewasher.Whenreinstallinga used
sparkplug,tighten1/8-1/4turnafterthe sparkplugseatsto compress
the washer.
Neverusegasolineorlow flashpointsolventsforcleaningthe air
c eanereement. A f re orexpos oncou d resut.
Servicing the Air Cleaner
Theair cleanerpreventsdamagingdirt, dust,etc.,fromenteringthe
carburetorand beingforcedintothe engineandis importantto engine
life andperformance.Neverrunthe enginewithoutan aircleaner
completelyassembled.Checktheaircleanerbeforeeach use.
Paperfilterscannotbecleanedandmustbe replacedonce a year
orevery 100operatinghours;moreoftenif usedin extremelydusty
conditions.
1. Pressthe tab onthe airfiltercover,lift the coverandremovethe
airfilter.SeeFigure25.
2. Discardold airfilter.
3. Installnewairfilter.
4. Closethe cover.
NOTE:Ifthe filteris torn ordamagedin anyway,replaceit.
Donot sprayenginewithwaterto clean becausewatercould
contaminatefuel. Usinga gardenhoseorpressurewashingequip-
mentcanalso forcewaterintothe muffleropening.Waterthat passes
throughthe mufflercanenterthe cylinder,causingdamage.
Accumulationof debrisaroundmufflercouldcausea fire.Inspectand
cleanbeforeeveryuse.
Figure23
,Electrode
0.02-0.03 in.
===_1_====0.60-0.80 rnrn
Figure24
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Air Filter
Cover
Filter
Cleaning the Engine
If theenginehasbeenrunning,allowit to coolfor atleasthalfan hour
beforecleaning.Periodicallyremovedirtbuild-upfromtheengine.
Cleanaroundthe muffler.Cleanwitha brushor compressedair.
Figure25
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