04 450r jetting help

[badAZZ-R]

Took the spark arester out, took the air lid off, and put a 160 main in.The bike bogs a little,20-30% throttle, am I lean or rich? any help would be great!! ThanX

[Scro]

You are probably a little lean. Try a 170 main and 50 pilot.

[badAZZ-R]

ThanX, Ill try that.

[cals400ex]

yeah i would almost go up to a 180 mainjet even. you might even want to try the 4th clip position on the stock needle.