Bought a kazuma 110 yesterday with carb issues, needs new front sprocket, and a ignition switch which is no big deal. Got the quad near dark, got from a friend so didn't think it would be a problem. Long story short their is a lot of things wrong he didn't tell me about including the rear wheels are locked up and wil not move, read on other forums that the rear diff was more than likely screwed up. Was wondering if anyone knew where I could get a rear diff rebuild kit for a kazuma because I cant find one online, Does it have to be a kazuma rebuild kit? how much do you think a mechanic would charge to rebuild? Any other suggestions would be appreciated greatly!