Did a little trading for an 01 426 in the spring. It would start and run fair. When the guy show me the dance for it he said he had never used the choke to start it. After 2 weeks of playing with the jetting daily:foul:, i got it running great but i'm still having an issue:banghead:. The choke is WAY to rich. The whole system runs rich until it is fully warmed up. After it warms up if you pull the choke it will kill the bike, then i have to use the hot start to start it again. Any ideas? Thanks ahead of time. Jetting info... 165 main 42 pilot 72 starter 100 paj 200 maj dynojet stage 1 needle (kit) fuel screw 2 turns give or take 1/2 turn for conditions 3000- 6000' elevation Less than 30% humidity 30- 60 degrees currently... up to 110 in the summer.