cals400ex
04-18-2003, 10:14 AM
i am wondering what the piece does inside the carb where the mainjet skrews into. this piece that the main jet skrews into is adjustable. there is a nut on it to where you can skrew it in and out. how do you know where to adjust it at? do you just skrew it all the way in and tighten the nut? this is on a 400ex but i am assuming that the other bikes have it also. thanks