30
MAINTENANCE
Air Filters
Air Filter Inspection
Do not use gasoline or low flash point solvents for
cleaning. They are flammable and explosive under
certain conditions.
NOTE: An obstructed air filter restricts air flow to
the carburetor. To prevent carburetor malfunction,
regularly service the air filter. Service more
frequently when operating the generator in
extremely dusty areas.
1. Remove the maintenance cover.
2. Unsnap the clips and remove the air cleaner cover (A).
3. Remove the air filter (B).
4. If the paper element (B) is dirty or torn, replace it with
a new one. Do not attempt to clean the element.
5. Reinstall the air cleaner cover.
6. Close and latch the service door.
Spark Plug
Spark Plug Inspection and Replacement
Using a non-recommended spark plug can result in
serious engine damage. Always use recommended
spark plugs.
NOTE: In order to service the spark plug, the
provided spark plug wrench is required.
Refer to the Specification section (Page 41) for the
recommended spark plug type. Always torque spark
plugs to the specification.
NOTE: To ensure proper engine operation, the spark
plug must be free of deposits and properly gapped.
If the engine has been running, allow it to cool
before servicing.
Normal Spark Plug
The normal insulator tip is gray, tan or light brown. There
will be few combustion deposits. The electrodes are not
burned or eroded. This indicates the proper type and heat
range for the engine and the service.
NOTE: The tip should not be white. A white insulator
tip indicates overheating, caused by use of an
improper spark plug, fuel, or incorrect carburetor
adjustments.
Wet Fouled Spark Plug
The wet fouled insulator tip is black. A damp oil film
covers the firing end. There may be a carbon layer over
the entire nose. Generally, the electrodes are not worn.
Fouling may be caused by excessive oil or by frequent
short trips, especially in cold weather.
1. Open the maintenance cover.
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