Honda EU20i Owner's Manual page 47

Before storing the unit for an extended period:
1. Be sure the storage area is free of excessive humidity and dust.
2. Drain the fuel.
Gasoline is extremely flammable and is explosive under certain
conditions. Perform this task in a well ventilated area with the
engine stopped. Do not smoke or allow flames or sparks in the area
during this procedure.
a. Drain all gasoline from the fuel tank into an approved gasoline
container. We recommend using a commercially available
gasoline hand pump. Do not use an electric pump.
b. Turn the engine switch to the ON position, and loosen the
carburetor drain screw and drain the gasoline from the carburetor
into a suitable container.
c. With the drain screw loosened remove the spark plug cap, and
pull the starter grip 3 to 4 times to drain the gasoline from the fuel
pump.
d. Turn the engine switch to the OFF position, and tighten the drain
screw securely.
e. Reinstall the spark plug cap on the spark plug securely.
SCREW DRIVER
45