try push starting it, get to a decent amount of speed on a hill or with two friends pushing and pop the clutch in 2nd or 3rd gear... was it cold? carburated bikes dont like to start sometimes in the cold, tomorrow is going to be really nice give it a try then... also try starting it with a car's battery attached to the bike's via some jumper cables, but DO NOT have the car running, w/ the alternator it will be too much juice for the bike's system