I have an 06 450r (electric start) with an X2 exhaust with only the baffle, a velocity air intake with K&N filter, no air box. and I recently put a dynojet stage2 kit with 140 main jet (biggest on the website for 06-07 trx450) and my needle setting is the 5th setting from the top. I am running cam II, which is 114 octane. I am busting up a little on the holeshot and it wont even pull at full throttle. any suggestions?? thanks

 

too small a jet i have a 168 main with just a slip on (hmf) but mine cuts out a lil on top