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Fuel Filter Cup Cleaning
The fuel filter cup is a small well underneath the fuel valve. It helps to trap dirt and water that
may be in your fuel tank before it can enter the engine. To clean the fuel filter cup:
1. Turn the fuel valve to the "OFF" position.
2. Unscrew the fuel filter cup from the fuel valve using a wrench. Turn the valve toward you
to unscrew (see figure 19).
3. Clean the cup of all sediment. Using a rag or brush.
4. Reinstall the fuel filter cup.
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. To inspect you spark plug:
1. Pull on the spark plug cap to remove it.
2. Unscrew the spark plug from the generator using the spark plug wrench included with
this product (see figure 20).
3. Visually inspect the spark plug. If it is cracked or chipped, discard and replace with a new
spark plug. We recommend using a F6RTC spark plug such as NGK BPR5ES.
4. Measure the plug gap with a gauge (see figure 21). The gap should be 0.7-0.8 mm
(0.028-0.031 in).
5. If you are 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 its place on the generator using the spark plug wrench.
Replace the spark plug cap.
Figure 18- Removing the air cleaner casing.
Figure 19 –Removing the Fuel Filter Cup
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