440ex

[jwisniew]

can i run a stock carb and if i can what jets do i need

curtis sparks x6 pipe k&n filter stage 1 hotcam

thanks
jwisniew's mechanic

[RiderTRX400ex]

you can run a stock carb, a carb like a FCR 39 or 40 would really wake it up though. as far as jetting, youll have to mess around with that. Get a really high main jet and go down from there, youll know the main is to high if it sputter or pops at wide open throtle. keep dropping a few sizes each time, or do plug chops.

just some ideas. or call up C&D or any known engine builder they could help you out.