MAINTENANCE
ENGINE OIL:
Drain oil while the engine is still warm.
Remove the oil ll plug and drain cap to drain oil.
Install drain cap.
Fill the engine crankcase with recommended oil up to the level of the plug opening.
AIR CLEANER:
Service air cleaner frequently to prevent carburetor malfunction. NEVER run engine without air cleaner.
Severe engine damage will occur. NEVER use gasoline or other types of low ash point solvents for
cleaning the air cleaner. A re or explosion could result.
Remove air cleaner cover. Remove both elements and inspect them for holes or tears. Replace
damaged elements.
Wash foam element (b) in solution of mild detergent and warm water. Rinse thoroughly in clean water.
Allow element to dry thoroughly. Soak element in clean engine oil and squeeze out excess oil.
Tap paper element lightly to remove excess dirt. Replace paper element if it appears heavily soiled.
SPARK PLUG:
Clean or replace the spark plug as needed to ensure proper operation. CAUTION A loose spark plug
can become very hot and may cause engine damage.
Remove the spark plug and inspect it.
Replace the spark plug if the insulator is cracked or chipped.
Clean the spark plug electrodes with a wire brush.
Set the electrode gap.
Tighten the spark plug securely.
CLEANING SEDIMENT CUP:
Turn the fuel valve off.
Remove the sediment cup and the O-ring.
Wash both thoroughly in a non-ammable solvent. Dry and reinstall them.
Turn the fuel valve on and check for leaks.
ADJUSTING IDLE SPEED:
WARNING: Remove the drive belt before making any adjustment to the carburetor. The blades will
engage unless the belt is removed from the machine.
Start the engine and allow it to warm up to normal operating temperature.
Turn the throttle stop screw in to increase speed, out to decrease speed. Make sure the throttle lever is
touching the stop screw before measuring rpm.
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General