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.
6.
Reinstallthe drain plugand tightenit securely.
Refillwith the recommended oil and checkthe oil level.See
Recommended Oil Usagechart.Theengine'soil capacityis 20
ounces.
(%-400 -200 0o 200 400
("c)
-300 -200 -10° 0°
DONOTuse nondetergent o il or 2-strokeengineoil. It could shorten
the engine'sservicelife.
7.
Reinstallthe oil fillercap/dipsticksecurely.
Oil Drain
Plug
Figure13
after handling usedoil.
Checking
Spark
Plug
DO NOTcheckfor sparkwith spark plug removed.DO NOTcrank
enginewith sparkplug removed.
If the engine hasbeen running,the mufflerwill be very hot. Be careful
notto touch the muffler.
NOTE: Checkthe sparkplug oncea seasonor every 25 hoursof
operation.Changethe sparkplug oncea seasonor every 100hours.
Toensureproperengine operation,the sparkplug mustbe properly
gappedand freeof deposits.
1.
Removethespark plug bootand use a sparkplug wrenchto
removethe plug.See Figure14.
2.
Visuallyinspectthe spark plug.Discardthe spark plug if thereis
apparentwear,or if the insulatoris crackedor chipped.Cleanthe
sparkplug with a wirebrush if it is to be reused.
3.
Measurethe plug gap with a feelergauge.Correctas necessary
by bendingsideelectrode.See Figure15.The gap shouldbe set
to .02-.03inches(0.60-0.80ram).
4.
Checkthatthe sparkplug washeris in good conditionand thread
the sparkplug in by handto preventcross-threading.
5.
After thespark plug is seated,tightenwith a spark plugwrenchto
compressthe washer.
NOTE:Wheninstallinga newsparkplug,tighten 1/2-turnafter the
sparkplug seatsto compressthe washer.Whenreinstalling a used
sparkplug,tighten 1/8-to 1/4-turn after the sparkplug seatsto
compressthe washer.
17
Spark Plug
O
J
Figure14
Electrode
.02-.03 in.
{0.60-0.80 ram)
Figure15
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