watch this video, what is wrong with my bike??

[platinumshane1]

it used to start up but not go anywhere, seemed like a bad clutch, then i put the bike in 2nd gear, started it and now this happens. please help!

http://youtu.be/d0oUJVd1_AQ?list=UUNqWzQUL0upcHYlDhY2KNug

 

[Predator13]

To me I would start by checking the one way starter gear maybe it could be a sheared woodruff key it sounds like the starter is spinning but not catching the gear

 

[bones]

Sheared rotor key