I live in the High Desert of Southern California. The average altitude is around 2500 - 3500 where we ride. My '02 426 is a beast to start which, from what I hear, is common with the 426's. My cousin changed his main jet out to a 168 Heihin and left the others alone and his is easier to kick over. Has anyone had success in changing out their jets for an easier-to-start 426? What did you do? Thanks for the tips.