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.
6.
Reinstallthe drain plugandtightenit securely.
Refillwiththe recommendedoil and checkthe oil level.See
RecommendedOil Usagechart.Theengine'soil capacityis 20
ounces.
(%-400 -200 0o 200 400
("c) -300 -200 -10° 0°
DONOTuse nondetergentoil or 2-strokeengineoil. itcould shorten
the engine'sservicelife.
7. Reinstallthe oilfillercap/dipsticksecurely.
Oil Drain
Plug
Figure13
afterhandling usedoil.
Checking Spark Plug
DO NOTcheckfor sparkwithspark plug removed.DO NOTcrank
enginewithsparkplug removed.
Ifthe enginehasbeenrunning,the mufflerwill bevery hot.Becareful
notto touch the muffler.
NOTE: Checkthe sparkplugoncea seasonorevery25hoursof
operation.Changethe sparkplugoncea seasonor every 100hours.
Toensureproperengineoperation,the sparkplugmustbe properly
gappedandfreeof deposits.
1. Removethespark plug bootand use a sparkplugwrenchto
removethe plug.See Figure14.
2. Visuallyinspectthe sparkplug.Discardthe sparkplugif thereis
apparentwear,or if the insulatoris crackedor chipped.Cleanthe
sparkplugwith a wirebrush if it is to be reused.
3. Measurethe pluggapwitha feelergauge.Correctas necessary
by bendingsideelectrode.SeeFigure15.The gap shouldbe set
to .02-.03inches(0.60-0.80ram).
4. Checkthatthe sparkplug washeris ingood conditionand thread
the sparkplug in by handto preventcross-threading.
5. After thespark plug is seated,tightenwitha spark plugwrenchto
compressthe washer.
NOTE:Wheninstallinga newsparkplug,tighten1/2-turnafter the
sparkplugseatsto compressthe washer.Whenreinstallinga used
sparkplug,tighten1/8-to 1/4-turnafter the sparkplugseatsto
compressthe washer.
17
Spark Plug
0
J
Figure14
Electrode
Figure15
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