Meh.... about to sell my biek for its pieces
(http://i.imgur.com/Z2rQj54.jpg)
(http://i.imgur.com/Kt6HgQM.jpg)
Unfortunately, no. The starter clutch has to bolt to the back of the rotor and it is completely ruined.
There is a chance that the starter clutch itself is ok. But you will need a new rotor and new bolts for sure.
Looks like someone failed to tighten those bolts and the bike would start as long as one of the bolts caught somewhere on the back of the rotor. Whoever had it before you probably struggled with the engine failing to start sometimes because the bolts wouldn't catch the rotor...
Looks like it was run in this way a long time. There is lots of damage to the back of the rotor.
Pretty much everyone who buys a used motorcycle ends up with some of these unpleasant surprises left by the previous owners.
At least I've not lost too much money and I was able to learn quit a few thing.
I'll be buying a brand new bike in august when i move in europe :)