Air Filter Maintenance; Changing Fuel Line; Spark Plug Maintenance; Emptying The Fuel Tank - Sportsman GEN4000-SS 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 F6TC spark plug, such as
Champion N11YC 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. Place a receptacle underneath the generator to catch gasoline as it drains.
3. Unscrew the drain bolt of the carburetor.
4. Empty the fuel in the carburetor.
5. Unplug the fuel hose from the carburetor.
6. Turn the fuel valve to the "on" position. Empty the fuel in the tank.
7. Turn the fuel valve to the "off" position and replug the fuel hose to the carburetor.
8. Tighten the drain bolt of the carburetor.
9. 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.
GEN4000-SS Portable Gas Fuel Generator
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