i just got a '03 'shee and that thing is fast. I replaced my KX 250 2 stroke for it. The quad has way more power than muh 250 had. The bike has fmf fatty pipes and silencers, k&n filter, wiseco pistons, nerfs, bumper, grab bar, and handlebars. I wasn't expecting the thumb throttle to be that stiff but yea, it's still pretty sweet. It seems super stable too. It's probly the fastest quad around here. the fastest one as of now is mine, but b4 it was a 400 ex. But i was wondering, is it hard to go in and redo the top end yourself and to make sure both pistons are hitting at the same time?

 

No, It's very easy. As for the pistons, when one is at TDC, the other is at BDC.