more 400ex atv mods

[AtvRider21]

i am gunna get a wb e series pipe, fmf high flow header , and a k and n air filter. are there any more cheap power/ speed mods that i can get i dont want to lose over 2 mph speed on mod thanks... also how much more pull/power will this give me



onemore what main jet and pilot cus i dont know i dont wanna break it wat is a good one thanks

[cals400ex]

you can remove the choke. you can adjust the throttle cable. also if you already have the air box lid removed you are running really lean if you did not rejet. as for the pipe, i don't know what white brothers calls for on the jets. with the k and n air filter you usually go up one or two sizes on the main jet with the airbox lid in place. if removed you would have to go up more than that. i went from a 38 to a 42 on the pilot jet so it would start easier. you have to remember that jetting is trial and error. i agree its a pain in the butt!!