O K, I'm ready to be flamed, But has anyone removed the airbox lid and rejetted the carb. We are ready to put some sand tires on it and could use some extra power!! I had to ride Wifes quad last weekend due to problems with My KFX400. What jetting is stock or what jetting have you used?? Is the bolt pattern the same as the LTZ/KFX?? A VERY mild set of tires will be used, because she has trouble turning it now(Wont shift her weight). We ran it up some hills and did pretty good, some more tire will help.
Thanks in advance

Bob J

 

the stock main jet is 137.5, im running the t-4 and a twin filter and have a 142.5 in it right now because its so damn cold, i'll probally drop down to a 140 in the summer. hopefully i was of some help