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NOTE:Althoughmulti-viscosityoils (5W30,10W30,etc.)improve
startingin cold weather,theywill resultin increasedoilconsumption
whenusedabove32°R Checkyour engineoil levelmorefrequentlyto
avoidpossibleenginedamagefrom runninglow onoil.
Changethe engineoil after the first five hoursof operation,andevery
50 hoursthereafter.Changethe oilevery25hoursof operationif the
engineis operatedunder heavyload or in highambienttemperatures.
To Drain Oil
Drainthe oilwhilethe engineis warm.Followthe instructionsgiven
below.
.
2.
Removethe drainplugonthe engineand drain the oilinto a
suitablecontainer.
Whentheengine is drainedof all oil, replacethedrain plug and
refillwithapproximately20oz.of fresh oil. Referto GasAnd Oil
Fill-upinthe OPERATIONsection.
Service Air Cleaner
Theair cleanerpreventsdamagingdirt, dust,etc.,fromenteringthe
carburetorandbeingforcedintothe engineandis importantto engine
lifeand performance.
Neverrunthe enginewithoutan aircleanercompletelyassembled.
Servicethe cartridgeevery25 operatinghoursor everyseason.
Servicethe cartridgemoreoften underdustyconditions.
To Service Air Filter
.
2.
Loosenthe air cleanercoverscrew,butdo not removethe screw
fromthe cover.Swingthe coverdownto removefromthehinge.
Inspectthe filterfor discolorationor dirt accumulation.If eitheris
present,proceedas follows:
a. Cleanthe insideof bodyandcoverthoroughlyand removethe
cartridge.
b. Reassemblethe newcartridgein the body.Swingthe cover
downand tightenthe screwloosenedearlier.
Temperatureof mufflerand nearbyareasmayexceed 150° F(65°C).
Avoidtheseareas.
seasonor every50 hoursof operation.
• Cleanthe areaaroundthe sparkplug.Removeand inspectthe
sparkplug.
• Replacethe sparkplugif theelectrodesarepitted,burnedor the
porcelainis cracked.
• Checkthe electrodegapwitha wire feelergaugeandresetthe gap
to .030inches.See Figure5-3.
NOTE: Donot sandthe sparkplug.The sparkplugshouldbe cleaned
witha wire brushanda commercialsolvent.
f
1..030 (.76 mm) Gap
2. Electrodes
3. Porcelain
J
Figure 5=3
Clean Engine
• Cleanthe engineperiodically,by removingdirt and debriswith a
clothor brush.
NOTE:Cleaningwitha forcefulsprayof wateris not recommendedas
watercouldcontaminatethe fuelsystem.
• Toensuresmoothoperationof the engine,keepthe governor
linkage,springsandcontrolsfree of debris.
• Every100 hoursof operation,removecombustiondepositsfrom
top of cylinder,head,topof pistonandaroundvalves.
Service Spark Plug
* Cleanthe sparkplugandresetthe gap to .030"at leastonce a
18
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