taco eater :
Anonymous Person from Seattle, WA United States
Torque is better, top end is better, but some things are whacked on it. Had to file the inside of the piston to fit it on the crank and also the head gasket is not that great, stock pipe would not run right with the baffle so I chopped out the spark arrestor and it seems to function great now. Power is from 8-11k, intakes for ysr and some other yam 80-100cc dirtbikes are the same. still need to recut my head or find a dt80 head, but it works fine and rips.