Honda FG400 Owner's Manual page 46

STORAGE
Draining the Fuel Tank and Carburetor
1. Remove the fuel filler cap, and empty the fuel tank into an approved
gasoline container using a commercially available hand siphon. Reinstall
the fuel filler cap.
2. Place an approved gasoline container below the carburetor, and use a
'
funnel to avoid spilling fuel.
3. Loosen the carburetor drain screw to drain the carburetor.
Gasoline is highly flammable and explosive.
You can be burned or seriously injured.
Never use gasoline to clean engine parts.
Use a nonflammable solvent.
CARBURETOR
4.
After all the fuel has drained into the container, tighten the drain screw
securely.
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