IMPORTANT: Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods. Although this is unlikely unless you handle used oil on a daily basis, it is still advisable to thoroughly wash your hands with soap and water as soon as possible after handling used oil.
NOTE: Please dispose of used motor oil in a manner that is compatible with the environment. We suggest you take it in a sealed container to your local service station for reclamation. Do not throw it in the trash or pour it on the ground.
Air Cleaner Service
A dirty air cleaner will restrict air flow to the carburetor. To prevent carburetor malfunction, service the air cleaner regularly. Service more frequently when operating the engine in extremely dusty areas.
WARNING: Never use gasoline or low flash point solvents for cleaning the air cleaner element. A fire or explosion could result.
0APERP%LEMENT 
10
Maintaining
Your
Engine
&OAM %LEMENT
Figure
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IMPORTANT: Never run the engine without the air cleaner. Rapid engine wear will result.
1.Remove the wing bolt and the air cleaner cover. Remove the elements and separate them. See Figure
2.Foam element: Wash the element in a solution of household detergent and warm water, then rinse thoroughly, or wash in nonflammable or high flash point solvent. Allow the element to dry thoroughly. Soak the element in clean engine oil and squeeze out the excess oil. The engine will smoke during initial
3.Paper element: Tap the element lightly several times on a hard surface to remove excess dirt, or blow compressed air through the filter from the inside out. Never try to brush the dirt off; brushing will force dirt into the fibers. Replace the paper element if it is excessively dirty.
Foam Element Part Number: 751-10239
Paper Element Part Number:
Spark Plug Service
WARNING: DO NOT check for spark with spark plug removed. DO NOT crank engine with spark plug removed.
To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.
1.Remove the spark plug boot and use a spark plug wrench to remove the plug. See Figure
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Figure
WARNING: If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler.
2.Visually inspect the spark plug. Discard the spark plug if there is apparent wear, or if the insulator is cracked or chipped. Clean the spark plug with a wire brush if it is to be reused.
3.Measure the plug gap with a feeler gauge. Correct as necessary by bending side electrode. See Figure
4.Check that the spark plug washer is in good condition and thread the spark plug in by hand to prevent
5.After the spark plug is seated, tighten with a spark plug wrench to compress the washer.
NOTE: When installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the washer. When reinstalling a used spark plug, tighten
WARNING
Never use gasoline or low flash point sol- vents for cleaning the air cleaner element. A fire or explosion could result.
DO NOT check for spark with spark plug removed. DO NOT crank engine with spark plug removed.
If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler.
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