CHECK THE FUSES ON THE STARTER RELAY. TURN THE KEY ON AND JUMP THE RELAY WITH A SCREWDRIVER OR HEAVY WIRE. IT COULD ALSO BE THE NUETRAL SWITCH, BRAKE SWITCH, CLUTCH SWITCH OR THE SHUTOFF SWITCH. IF YOU GET A CLICK WHEN YOU HIT THE START BUTTON IT COULD ALSO BE A BAD RELAY OR STARTER. TRY JUMPING THE RELAY FIRST.