Honda CRF230F Owner's Manual page 32

FUEL
Fuel Valve
The three way fuel valve (1) is on the left side
below the fuel tank.
OFF
With the fuel valve in the OFF position, fuel
cannot flow from the tank to the carburetor.
Turn the valve OFF whenever the motorcycle
is not in use.
ON
With the fuel valve in the ON position, fuel
will flow from the main fuel supply to the
carburetor.
RES
With the fuel valve in the RES position, fuel
will flow from the reserve fuel supply to the
carburetor. Use the reserve fuel only when
the main supply is gone. Refill the tank as
soon as possible after switching to RES.
The reserve fuel supply is:
1.5 l (0.40 US gal, 0.33 Imp gal)
Remember to check that the fuel valve is in
the ON position each time you refuel. If the
valve is left in the RES position, you may run
out of fuel with no reserve.
ON
(1)
(1) Fuel valve
OFF
RES
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