Honda CRF250F Owner's Manual Installation And Operation page 138

(Ref.No.) Description
(1) PGM-FI malfunction
indicator lamp (MIL)
(2) Fuel reserve indicator
Lights when there is any abnormality in the PGM-FI (Programmed Fuel
Injection) system. Should also light for a few seconds and then go off when the
ignition switch is turned ON.
If the indicator does not come on when it should, have your dealer check for
problems.
If it comes on at any other time, reduce speed and take the motorcycle to your
dealer as soon as possible.
When this indicator comes on while riding, fuel reserved in the tank is about:
1.3 (0.34 US gal, 0.29 Imp gal)
Should also light for a few seconds and then go off when the ignition switch is
turned on. If the indicator does not come on when it should, have your dealer
check for problems.
Function
13