Craftsman 88830 Operation Manual - Page 19
°-20 o, 300 -200 -10° - spark plug
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. Reinstallthe drain plugand tightenit securely. 6. Refillwith the recommendedoil and checkthe oil level.See RecommendedOil Usagechart.Theengine'soil capacityis 37 ounces. , , [ (%-40 °-20 o 0o 200 400 ("c) -300 -200 -10° 0° Oil Drain Plug DO NOTuse nondetergentoil or 2-strokeengineoil. It could shorten the engine'sservicelife. 7. Reinstallthe oil fillercap/dipsticksecurely. Thoroughlywashyour handswith soap andwater as soonas possibleafter handling usedoil. Checking Spark Plug DO NOTcheckfor sparkwith spark plug removed.DO NOTcrank engine with sparkplug removed. Figure18 Spark Plug O If the enginehas been 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 Figure19. 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 Figure20. Thegap 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. 19 J SparkPlug Boot Figure19 Electrode .02=.03 in. (0.60-0.80 ram) Figure20