Honda FR650 Owner's Manual page 58

For storage of two months or longer, perform these additional steps:
Before storing the unit for an extended period:
4. Drain the fuel...
a. With the fuel valve turned OFF, remove and empty the sediment cup.
b. Turn the fuel valve ON and drain the gasoline in the fuel tank into a
suitable container.
c. Replace the sediment cup and tighten securely.
d. Drain the carburetor by removing the drain knob. Drain the gasoline into
a suitable container. Replace the drain knob.
Gasoline is highly flammable and explosive.
You can be burned or seriously injured when handling fuel.
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Keep heat, sparks, and flame away.
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Handle fuel only outdoors.
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Wipe up spills immediately.
CUP
DRAIN KNOB