I have an 03 baja that is piped and jetted and I lost to a new 05 DS that is stock (3-4 lengths in 600 to 700 ft). I have tried many times and I can't accerate as fast as him. Now my DS has alot of miles on it. I don't have noticable oil consumtion and no smoke. What problems is everybody seeing that could cause this (rings, valve lash. etc.).

 

well the new ds's are lighter and get better traction and rev higher than before....

 

First off I lauched better then the 05 in drag races. The other rider makes up the weight difference between new and old DS's. As far as I now, the rev limiters on both of our atvs are set at 7900rpm. My problem is engine output.

 

what about traction? one time on grass i raced a completly stock 00 ds that had holeshot xct's on, against my 75% worn ohtsus, and he laid the smack down on me!

it was because i spun and spun and he got better traction.
just somthing to consider.

if that isnt the problem im interested to hear what is... (i assume ur jetting is ok?)