DynoJet setting for 400ex

[RipinItUp 400EX]

ok this has prob. been posted before but here goes. where I live the elevation is around 1800 feet. I have a dyno jet kit and has a jet for between 3000 and 6000 ft., and another for below 3000 ft. Where I ride the elevation starts at about 2000 ft. and I go upto about 4000 ft. Which jet should I use? the one below or above 3000 ft. In the winter it starts a lot worse where I live but in reddeer it starts a lot better cause its like almost 3000 ft. there. Anyway what will happen if I'm over 3000 with the under 3000 ft jet? I got the 3000 to 6000 (142) in there right now and if I'm below 3000 it kinda bogs sometimes. I also have a white bros e-series pipe on. Any help would be great. thanks!

[jsmith2232]

I live in michigan and when i had a full exhaust and filter, revbox i ran a 146 dynojet for a year and a half and never had to change a plug. I would probably go richer if i were you, it's always to be a bit to rich then a bit too lean.

[RipinItUp 400EX]

ok thanks!