400ex jetting...

[timp224]

I have a 2007 400ex with a full exhaust, stage 2 jet kit with open air box with k&n and outer, stage 2 hot cam, how many turns out should my fuel air mixture screw be?

[honda400ex2003]

i would say between 2 and 3 would be good. it just depends on how it runs and if it is popping on decel and how it feels. steve

[BEAVER.989]

Turn it all the way in, back it out 1 1/2 turns, ride the machine to warm it up, then adjust it out 1/4 turn at a time to the highest SMOOTH idle.