A little rich maybe?

[Dienamo111]

Just a quick question for those 400ex folks...
I just recently installed a k&n powerkit and a t-4 slip on silencer.
I feel like i am running a little rich sometimes i have problems with it loading up it seems like its flooding itself out. I have my needle setting on the number {2} notch and a 155 main jet in.
Should i try turning in the air/fuel screw inward just a little to slow the fuel intake? :confused:

do u have a K&N filter? And is your lid on. I think u might be rich if u have the lid on and a 155

[Dienamo111]

i have a k&n filter and i am running with the lid on , maybe i should remove the lid

try without the lid then check the plug. if its white richen it. if not ur good to go