jetting procircuit 400ex

[hondaexryda]

hey, i was wondering, what would be good jetting for 400ex : Procircuit slip on, stock air filter, lid off/on , DUNE riding, <dumont/glamis>

[atvracr350]

um i have a procircuit full system and with a k&n and airbox lid on with a few holes drilled in the top. I have a 155 main in there and it runs good so i would start with that or go to a 152 main.

[zlam27]

im at about 700ft and its about 50degrees here and im running a 158. thats with no choke and a K&N. that was my winter jetting, in a day or two i will put on my outerwear airbox cover. i think my jetting should be right on with that setup because it seemed just a tad rich before. i would go with a 155 depending on your elevation (for every 1000ft i would go down one size). also a 40 pilot will help with starting.

zach