Replacement Part List

18
The gap should be: 0.028 0.031 in (0.70 0.80 mm)
6. Check that the spark plug washer is in good condition, and
thread the spark plug in by hand to prevent cross-threading.
7. After the spark plug is seated, tighten with a spark plug
wrench to compress the washer.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats to compress the washer. If reinstalling a used spark plug
tighten 1/8 - 1/4 turns after the spark plug seats to compress the
washer.
The spark plug must be securely tightened. An improperly tightened spark plug can become very hot
and could damage the engine. Never use spark plugs which have an improper heat range.
STORAGE
Before storing the unit for an extended period:
• Be sure the storage area is free of excessive humidity and dust.
• Service according to the table below:
STORAGE
TIME
TO PREVENT HARD STARTING RECOMMENDED
SERVICE PROCEDURE
Less than 1
month
No preparation required
1 to 2 months
Fill with fresh gasoline and add gasoline conditioner.
2 months to 1
year
Fill with fresh gasoline and add gasoline conditioner. Drain the carburetor
float bowl. Drain the fuel sediment cup.
1 year or more
Fill with fresh gasoline and add gasoline conditioner. Drain the carburetor
float bowl. Drain the fuel sediment cup. Remove the spark plug and put a
tablespoon of engine oil into the cylinder head. Pull recoil starter slowly to
distribute the oil evenly in the cylinder. Reinstall the spark plug. Change
the engine oil.
After removal from storage, drain the stored gasoline into a suitable
container and fill with fresh gasoline before starting.