Craftsman 88957 Operation Manual - Page 17

-10°

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. Reinstallthe drain plugand tightenit securely. 6. Refillwith the recommendedoil and checkthe oil level.See RecommendedOil Usagechart.Theengine'soil capacityis 20 ounces. (%-400 -200 0o 200 400 ("c) -300 -200 -10° 0° Oil Drain Plug DONOTuse nondetergentoil or 2-strokeengineoil. itcould shorten the engine'sservicelife. 7. Reinstallthe oil fillercap/dipsticksecurely. Figure13 after handling usedoil. Checking Spark Plug DO NOTcheckfor sparkwith spark plug removed.DO NOTcrank enginewith sparkplug removed. Spark Plug 0 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.Whenreinstallinga used sparkplug,tighten 1/8-to 1/4-turnafter the sparkplug seatsto compressthe washer. 17 J Electrode Figure14 Figure15

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.
6.
Reinstallthe drain plugand tightenit securely.
Refillwiththe recommendedoil andcheckthe oil level.See
RecommendedOil Usagechart.Theengine'soil capacityis20
ounces.
(%-400
-200
0o
200
400
("c)
-300 -200 -10°
0°
DONOTuse nondetergentoilor 2-strokeengineoil.
it
could shorten
theengine'sservicelife.
7.
Reinstalltheoilfillercap/dipsticksecurely.
Oil Drain
Plug
Figure13
after handling usedoil.
Checking
Spark
Plug
DONOTcheckforsparkwithsparkplugremoved.DONOTcrank
enginewithsparkplugremoved.
Iftheenginehasbeenrunning,themufflerwillbeveryhot.Becareful
nottotouchthemuffler.
NOTE: Checkthe sparkplug oncea seasonor every 25 hoursof
operation.Changethe sparkplugoncea seasonor every100hours.
Toensureproperengineoperation,the sparkplugmustbe properly
gappedandfreeofdeposits.
1.
Removethesparkplugbootanduseasparkplugwrenchto
removethe plug.See Figure14.
2.
Visuallyinspectthesparkplug.Discardthesparkplugifthereis
apparentwear,orifthe insulatoris crackedor chipped.Cleanthe
sparkplug with a wirebrush if it is to be reused.
3.
Measurethe pluggapwitha feelergauge.Correctas necessary
bybendingsideelectrode.SeeFigure15.Thegapshouldbeset
to
.02-.03
inches(0.60-0.80ram).
4.
Checkthatthe sparkplug washeris in good conditionand thread
the sparkplug in by handto preventcross-threading.
5.
Afterthesparkplugisseated,tightenwithasparkplugwrenchto
compressthewasher.
NOTE:Wheninstallinga newsparkplug,tighten 1/2-turnafter the
sparkplugseatsto compressthe washer.Whenreinstallinga used
sparkplug,tighten 1/8-to 1/4-turnafter the sparkplug seatsto
compressthewasher.
17
Spark Plug
0
J
Figure14
Electrode
Figure15