My Buddys YZ400F wasnt runnig right last weekend. Granted it was about 43 degrees out and raining/Hailing but his bike would not idle he bumped the idle screw way up but it kept stalling whenever he stopped it took probably 8 kicks to get it going initially where it never seems to take more than three or four.. and he put a new plug in the night before. Could it be carb cleaning time? Or should he rejet? He has a E-Series Spark arrester with around ten -12 disks in it also and I dont think he ever did a rejet but it has been running fine for almost a year. My KDX200 needed a few tweaks of the air screw to run right but it ran better as the day went on.
[This message has been edited by GREENBEAN (edited 04-03-2001).]
[This message has been edited by GREENBEAN (edited 04-03-2001).]