Manual

1. Removethesparkplugbootanduse a sparkplugwrenchto
removetheplug.See Figure17.
2. Visuallyinspectthe sparkplug.Discardthe sparkplugifthereis
apparentwear,orif the insulatoris crackedor chipped.Cleanthe
sparkplugwitha wirebrush if it is to be reused.
3. Measurethe pluggapwitha feelergauge.Correctas necessary
by bendingsideelectrode.SeeFigure18.The gapshouldbeset
to 0.030in.
4. Checkthatthe sparkplugwasheris ingoodconditionandthread
the sparkplugin by handto preventcrossthreading.
5. Afterthesparkplugis seated,tightenwitha sparkplugwrenchto
compressthewasher.
NOTE:Wheninstallinga newsparkplug,tighten1/2turn afterthe
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.Checkthe aircleanerbeforeeach use.
Paperfilterscannotbecleanedandmustbe replacedoncea year
orevery 100operatinghours;moreoftenif usedin extremelydusty
conditions.
1. Loosenscrewsthatholdthe airfiltercover.SeeFigure19.
2. Openthe coverand removethepre-cleanerandairfilter.
3. Washthe pre-cleanerandallowto dry.
4. Discardold airfilter.
5. Installnewairfilterandwashedpre-cleaner.
6. Closethe coverandtightenthescrews.
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.
Cleaning the Engine
If theenginehasbeenrunning,allowit to coolfor atleasthalfan hour
beforecleaning.Periodicallyremovedirt build-upfromtheengine.
Cleanaroundthe muffler.Cleanwitha brushor compressedair.
Boot
Figure17
0.02-0.03 in.
===_1 _=====0.60=0.80 mm
Figure18
J
E
Air Filter
Cover
Figure19
Pre<leaner
J
18