Air Filter Maintenance; Changing Fuel Line; Spark Plug Maintenance; Emptying The Fuel Tank - Sportsman GEN4000DF Instruction Manual

Air Filter Maintenance

Routine maintenance of the air filter helps maintain proper airflow to the carburetor. Occasionally verify that the air filter is free of excessive dirt. The
air filter will require more frequent cleaning when operating this generator in extremely dusty areas.
To clean the air filter, remove the foam filter element from the generator and wash it in warm water and household dish detergent. Thoroughly rinse
and dry. Pour a small amount of motor oil onto the filter, ring out ALL excess oil, and reinstall the foam filter element in the generator.
Unscrew the bolts, or unsnap the clips at the top and bottom of the air filter cover, located below the choke lever, to access the foam filter element.

Spark Plug Maintenance

The spark plug is essential for proper engine operation. The spark plug should be intact, free of deposits, and properly gapped. A bad or incorrectly
installed spark plug can cause engine damage. To inspect the spark plug:
1. Remove the spark plug by pulling on the spark plug cap.
2. Unscrew the spark plug from this generator by using the included spark plug wrench.
3. Visually inspect the spark plug. If it is cracked and/or chipped, discard and install a new spark plug. A F7RTC spark plug, such as
NGK BPR6ES is recommended.
4. Measure the spark plug electrode gap with a gauge. The gap should be 0.020-0.028in (0.5-0.7mm). (See Figure 9.)
5. If re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base and then re-gap the spark plug.
6. Screw the spark plug back into place on this generator by using the included spark plug wrench.
7. Replace the spark plug cap.
Figure 9
Measuring the spark plug gap
To store this generator for extended time, drain the gasoline from the carburetor AND fuel tank.
To drain gasoline from this generator:
1. Turn the fuel valve to the "off" position and let the engine run until it stops.
2. Remove the fuel filter cup. (See "Fuel Filter Cup Cleaning" earlier in this section.)
3. Empty the fuel filter cup of any fuel.
4. Place a receptacle underneath this generator to catch gasoline as it drains.
5. Turn the fuel valve to the "on" position and allow all gasoline to drain.
6. Turn the fuel valve to the "off" position.
7. Replace the fuel filter cup.
8. Store the drained gasoline in a suitable place.
To store this generator for extended time, the fuel needs to be drained from the carburetor. To drain the gasoline from the carburetor turn the fuel
valve to the "off" position while the engine is running. The generator will shut down when all the gasoline in the carburetor has been used.
GEN4000DF Portable Dual Fuel Generator
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