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Service Spark Plug
Service the spark plug every 100 hours of operation or
yearly, whichever occurs first.
_ CAUTION! Disconnect spark plug wire from
spark plug and keep wire away from spark plug
while servicing engine.
• Clean area around spark plug.
• Remove and inspect spark plug.
• Replace spark plug if the electrodes are worn, or if
the insulator is cracked or chipped.
• For replacement use either the standard resistor
spark plug, Champion RC12YC or the long life
platinum spark plug, Champion RC12PYP.
• Check electrode gap with wire feeler gauge and set
gap at 0.020 inches (0.50mm), if necessary.
Carburetor
If you think your carburetor needs adjusting, see your
nearest Sears service center. Engine performance
may be affected at attitudes above 7000 feet. For
operation at higher elevations, contact your nearest
Sears service center.
Spark Arrester Service
Your engine is not factory-equipped with a spark
arrester. In some areas, it is illegal to operate an
engine without a spark arrester. Check local laws and
regulations. A spark arrester is available from your
nearest Sears service center. If you need to order a
spark arrester, please call 1-800-366-PART.
The spark arrester must be serviced every 50 hours to
keep it functioning as designed.
If the engine has been running, the muffler will be very
hot. Allow the muffler to cool before servicing the
spark arrester.
• Remove spark arrester screen for cleaning and
inspection.
• Replace if screen is damaged.
• Install spark plug, tighten securely.
NOTE: You can purchase a new spark plug by calling
1-800-366-PART.
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