:+1:that's not very many miles for the clutch to crap out however it has happened that early before. i would start out by doing what they recommend as periodic maintenance and make sure you have the cable adjusted correctly. This is free and a good start. Did you change the levers recently? If that doesn't solve it then you probably need to look into the clutch. Might need new steel or fiber discs and while in there do the springs. There is a great write up in the how to section concerning replacing the discs. I'm hoping it's just a cable issue though.
I read that somewhere,about tire spin.As long as there is some free play in the clutch lever than adjustment is not your problem. Are you sure its slipping...these bikes rev really fast. I'm not sure how much experience you have.. Just throwing out suggestions...Could be spinning the tire too