0.7-0.8 mm
(0.028-0.031 in)
Figure 11- Measuring the spark plug gap
Recommended Spark Plug: NGK- BP7ES, Torch- F6TC
Draining the Fuel Tank
Clean fuel tank each year or before storing the engine for extended periods of time. To drain the
fuel tank and carburetor:
1. Turn the fuel valve to the “OFF” position. Move the engine in a well-ventilated area away
from ignition sources.
2. Place a funnel leading to a proper gasoline container below the carburetor.
3. Remove the drain bolt from the bottom of the carburetor bowl and allow the fuel to drain.
4. Open the fuel valve. After all fuel has drained, reinstall the drain bolt. Tighten securely.
5. Store the emptied gasoline in a suitable place.
Figure 12 Carburetor Drain Bolt
CAUTION: Do not store fuel for more than 3 months.
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