kajunracing
03-07-2003, 06:06 PM
Can anyone tell me the correct jets to use on my 400ex? Im going to instal a pro circuit t-4 slip on and a k&n filter with a removed or opened up air box lid. I ride in a mild temp climate 70-90 degres and about at or a little below sea level (Louisiana). I have a jet kit coming in with my other goodies but if the instructions do not tell me what i need to know i thought i could get a head start with you guys! By the way does anyone have experience with a pro circuit t4, how do you like it?