Spark Plug Service - Craftsman 247.25000 Operator's Manual

.
Removethe foam pre-filterfrom aroundthe paperair filter. See
Fig. 25. Replacepaperelementwhendirty or damaged.Clean
foamelementor replacewhendamaged.
Air Filter.
Figure25
4. Tocleanfoam element,washin a mildliquid detergentand water.
Squeezeor pressthe foam elementto rinseoutdirt and water.Do
nottwist; this coulddamageor tear thefoam element.Allowto
dry thoroughlybeforeusing. DO NOToil the foam element.
5. Attachthe newair filter with foamelement,aligningthe hole in the
air filter with the intakemanifold.See Fig. 26.
Air Filter
Plastic
Feature
Shroud
)
Feature
Figure27
Spark Plug Service
DONOTcheckfor sparkwith sparkplug removed.DONOT crank
enginewith spark plug removed.
Toensureproperengineoperation,the spark plug mustbe properly
gappedand free of deposits.
1. Removethe spark plugboot and usea spark plugwrenchto
removethe plug.See Fig. 28.
.
Figure26
Attachtheair filter cover,makingsureto align plasticrib features
on the shroudto the plasticfeatureson the air filtercover.See
Fig. 27.Turnthumbscrewsclockwiseuntil snug.Checkfor any
misalignment.
If the enginehas been running,the mufflerwill be very hot. Be careful
not to touchthe muffler.
R.
24
.
SparkPlug
Figure28
Visuallyinspect t he sparkplug. Discardthe sparkplug if thereis
apparentwear,or if the insulatoris crackedor chipped.Cleanthe
spark plug with a wirebrushif it is to be reused.