wvbanshee311

I took my banshee up the road the other day about a mile. on the way back it started backfiring. it got worse the further i went. It quit running before i got back. Now it wont start. It will backfire loudly every couple kicks. It also seems to be binding up. Every few kicks the bike simply wont turn over. I can stand on the kickstand. Try it again and its fine. Would a warped crank cause this problem? Any other suggestions? Thanks