glennoli: This is almost always related to valve adjustment. Are you positive that your intake valves are not too tight? Are you adjusting valves at TDC compression stroke (not exhaust stroke)?
Next time it won't start cold, spray starting fluid down the carb throat and try again - what happens? If it tries to run, the carb is not supplying the proper amount of fuel... if it doesn't check spark - if there, check valve clearance (again).
'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
'02 Honda 400ex, DiamondJ +3 A-arm widener, Lonestar anti-vibe
Last edited by QuadManiac; 03-10-2011 at 10:41 PM.