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200914 - 4250W DUAL FUEL OPEN FRAME INVERTER
MAINTENANCE
27
Cleaning and Adjusting the Spark Plug
1. Remove the spark plug cable from the spark plug.
2. Use a spark plug socket tool (not included), or a
13/16 in. (21 mm) socket (not included) to remove the plug.
3. Inspect the electrode on the plug. It must be clean and not
worn to produce the spark required for ignition.
4. Make certain the spark plug gap is
0.024-0.031 in. (0.6-0.8 mm).
SPARK PLUG GAP
5. Refer to the spark plug types in Specifications when replacing
the plug.
6. Firmly re-install the plug.
7. Attach the spark plug cable to the spark plug.
Cleaning the Air Filter
1. Unscrew the cover holding the air filter to the assembly by
turning the fastener counterclockwise.
2. Remove the foam element.
3. Wash in liquid detergent and water. Squeeze thoroughly dry in
a clean cloth.
4. Saturate in clean engine oil.
5. Squeeze in a clean, absorbent cloth to remove all excess oil.
6. Place the filter in the assembly.
7. Reattach the air filter cover and tighten the fastener by
turning clockwise.
Cleaning the Spark Arrestor
1. Allow the engine to cool completely before servicing the spark
arrestor.
2. Remove the two screws holding the cover plate which retains
the spark arrestor to the muffler.
3. Remove the spark arrestor screen.
4. Carefully remove the carbon deposits from the spark arrestor
screen with a wire brush.
5. Replace the spark arrestor if it is damaged.
6. Position the spark arrestor on the muffler and attach with the
screws removed in step 2.
CAUTION
Failure to clean the spark arrestor will result in degraded
engine performance.
NOTICE
Federal and local laws and administrative requirements
indicate when and where spark arrestors are required. When
ordered, spark arrestors are required for operation of this
generator in National Forest lands. In California, this generator
must not be used on any forest-covered land, brush-covered
land, or grass-covered land unless the engine is equipped with
a spark arrestor.
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