Honda GCV520 Owner's Manual page 39

DRAINING THE FUEL TANK AND CARBURETOR
1. Disconnect the fuel line to the engine, and drain the fuel tank into an
approved gasoline container. If the fuel tank is equipped with a valve,
turn the fuel valve to the OPEN or ON position to enable draining.
After draining is completed, reconnect the fuel line.
2. Loosen the carburetor drain screw, and drain the carburetor into an
approved gasoline container. After draining is completed, tighten
the carburetor drain screw.
HELPFUL TIPS & SUGGESTIONS
Gasoline is highly flammable and
explosive.
You can be burned or seriously
injured when handling fuel.
Keep heat, sparks and flame away.
Handle fuel only outdoors.
Wipe up spills immediately.
CARBURETOR
DRAIN SCREW
37