I have a 2000 yz250 that has fresh top end, reeds, piped, twin air airfilter, geared down, cleaned powervalve etc. My buddy just got an 04 yz250 completely stock everything that doesn't beat me in a drag but on the track he is always power wheelying. We both weigh 160lbs. Not sure what his jetting is but mine is 50 and 175. Its bugging me! Are the front ends lighter on the 04s or what?