MAINTENANCE
Carburetor
Drain Screw
Spark Plug
Boot
DRAINING THE CARBURETOR
Draining the carburetor is recommended after every use to prevent
the fuel from clogging up the carburetor. The carburetor can be ac-
cessed from the backside of the generator between the engine and
the air filter (Fig. 17).
1. Turn the fuel valve to OFF position to prevent gasoline from
draining from the fuel tank.
2. Open up the carburetor drain screw (Fig. 17) with a screwdriver
and drain out any gasoline that has built up inside.
3. Once the fuel has drained, close the drain plug with the screw-
driver. NOTE: Make sure to drain your carburetor before storing
the generator for long periods of time.
Fig. 17
SPARK PLUG MAINTENANCE
The spark plug is important for proper engine operation. A good
spark plug should be intact, free of deposits, and properly gapped.
Refer to Recommended Maintenance Schedule in Figure 14 for
maintaining the spark plug. To inspect the spark plug:
1. Clean and remove the spark plug boot (Fig. 18). Be careful not to
tear any insulation or wire.
2. Use the spark plug wrench provided to unscrew and remove the
spark plug from the engine.
3. Visually inspect the spark plug for cracks or excessive electrode
wear. If the electrodes are worn, burned or porcelain is cracked,
replace with a F6TC (NGK BP6ES) spark plug (Part No. 56500-138),
available at wenproducts.com
4. If re-using the spark plug, use a wire brush to clean any dirt from
around the spark plug base then re-gap the spark plug.
5. Measure the plug gap with a wire gauge (Fig. 19). The gap should
be 0.6 to 0.8 mm (0.024 to 0.031 in). Carefully adjust the gap if neces-
sary.
6. Screw the spark plug back into the spark plug hole by hand. After
the spark plug is properly seated, use the provided spark plug wrench
to tighten it.
Fig. 18
Fig. 19
NOTE: The spark plug torque is 9 - 12 n.m ( 7 - 8 ft.lb). The recommended tightening of spark plug is ½ to ¾ of
a turn after spark plug gasket contacts spark plug hole. DO NOT over-tighten the spark plug.
7. Reinstall the spark plug boot.
19
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