I got a 1989 Yamaha Banshee 350 that won't start after I driven it for a few hours. It'll run awesome for awhile then I'll shut it off for like an hour or so and go to fire it up again and it will not start what so ever. It won't even fire. I thought it wa just the carbs once so I pulled them both off and cleaned them and blew them out and the damn thing fired up so I took it out for a rip and left it for like to hours then it wouldn't start again. HELP!!!!!