1) Please start this as a post in the regular forum - many more will see it there, and this is supposed to be a reference 'sticky'.
2) Check that the carbs are tightly mounted on the intake manifold boots and the clamps are tight.
3) possible that cam chain has slipped.
'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo
Last edited by QuadManiac; 03-23-2010 at 08:55 PM.