06 440 MXZ X that i recently did a full 600HO conversion. Has oil injection, consumer hand/thumb warmer switches with the race bars and throttle block. Goodwin clutch kit installed in the Lightweight Race primary and modified Team secondary. Still running the studded factory track and geared accordingly. As of summer 2016 the chassis has a total of 6 hrs on it and the motor has a fresh complete rebuild with dual ring pistons used up top. Rebuilt carbs carbs as well and re-shimmed the needles, new Boyesen reed cages installed and fresh shock service all around.