Faults:

Piston due to racing.

Brakes on the rear quit for no reason, rebuilt them & works great since.

Throttle stuck 3 times. After a few hours on the cable, it's been fine.

General Comments:

We bought it at the track after the owner had a wild spill. He thought it was junk because he was very pro Yamaha.

This bike is very fast, & if the handling was a little better, it would perfect in the 125 class.