- Jan 10, 2004
I'm looking for more power out of a 02 kx125. It has some bolt on parts : pro circuit pipe & silencer (shorty), delta v-force, & a dyna fx ignition. The cylinder & head is stock. The bike has very low hours on it (due to unrelated injuries)and is ridden by 16yr old c-class rider in motocross. I'm considering increasing compression by milling the head .010-.020 and would appreciate any input or suggestions. I am willing to run race gas.