Honda CB250 Nighthawk Owner's Manual page 154

SYMPTOM: Starter motor works, but the engine won't start.
POSSIBLE CAUSE
engine stop switch OFF
out of fuel
flooded engine
loose or unconnected spark
plug caps
loose battery cables
weak battery
If Your Engine Quits or Won't Start
Turn the engine stop switch to RUN.
Fill the fuel tank.
See F looded Engine
Install the ignition coil connectors and ignition coils
securely. If the engine still won't start, see your
Honda dealer.
Tighten the battery terminal bolts.
Charge the battery (page
help, see your Honda dealer.
Taking Care of the Unexpected
WHAT TO DO
(page 38 ).
124 ). If charging doesn't
145