PDA

View Full Version : Yet another jetting question



coyn0839
07-21-2004, 07:32 AM
I have a question about the recommended jetting on a few mods. I am getting ready to put a stock bore 11:1 wiseco piston, hotcams stage 2, K & N air filter with airbox lid removed and a white brothers e series exhaust on an otherwise stock 400ex. What main jet do u recommend that I put in this? Any help would be greatly appreciated.

cals400ex
07-21-2004, 03:51 PM
try:

Keihin 158-160 mainjet
needle clip position in 4th position
42 pilot jet
3 turns out from lightly seated on fuel screw