Manual

Removethesparkplugbootanduse a sparkplugwrenchto
removetheplug.See Figure20.
Figure20
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.SeeFigure21.The gapshouldbeset
to 0.030in.
Electrode
0.02-0.03 in.
===_ 4=======0.60-0.80 mm
Servicing the Air Cleaner
Neverusegasolineor lowflashpoint solventsfor cleaningtheair
cleanerelement.A fireor explosioncouldresult.
The aircleanerpreventsdamagingdirt,dust,etc.,fromenteringthe
carburetorandbeingforcedintothe engineandis importantto engine
lifeandperformance.Neverrunthe enginewithoutanair cleaner
completelyassembled.Checkthe air cleanerbeforeeachuse.
Paperfilterscannotbecleanedand mustbereplacedoncea year
or every100operatinghours;moreoftenif usedinextremelydusty
conditions.
1. Pressthetab onthe air filtercover,liftthe coverand removethe
air filter.SeeFigure22.
Air Filter
Cover
Filter
_Foam .....................
Element ............
Figure22
2. Discardoldair filter.
3. installnewair filter.
4. Closethe cover.
NOTE:Ifthe filteris tornor damagedinany way,replaceit.
Do notsprayenginewithwaterto cleanbecausewatercould
contaminatefuel.Usinga gardenhoseor pressurewashingequip-
mentcan alsoforcewaterintothe muffleropening.Waterthatpasses
throughthe mufflercan enterthe cylinder,causingdamage.
Cleaning the Engine
Figure21
4. Checkthatthe sparkplugwasheris ingoodconditionandthread
the sparkplugin by handto preventcross-threading.
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.
Accumulationofdebrisaroundmufflercouldcausea fire. inspectand
clean beforeeveryuse.
Ifthe enginehas beenrunning,allow it to coolfor at leasthalf anhour
beforecleaning.Periodicallyremovedirt build-upfromthe engine.
Cleanaroundthe muffler.Cleanwitha brushor compressedair.
18