Honda EB11000 Owner's Manual page 60

Storage Procedure
Gasoline is highly flammable and explosive.
You can be burned or seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame away.
Handle fuel only outdoors.
Wipe up spills immediately.
1. Drain the fuel.
a. Remove the fuel tank cap, and empty the fuel tank into an
approved gasoline container using a commercially available hand
siphon. Reinstall the fuel tank cap.
b. Turn the fuel valve to the OFF position, and remove the fuel
sediment cup and clean it. Then reinstall the fuel sediment cup
securely (see page
58
48 ).