problems...

[racin31]

i have an 03 kfx 400 with a 440 big bore kit t-4 slip on and k&n filter.... i am running the stock carb when you bounce up and down on it, it will bog down and usually die... we cleaned the carb and it went away for a little while but it came back anyone have any ideas of what this problem could be?

[kawiracerj]

u check te ground wire on battery or something loose other than fuel?maybe a loose connection in key switch? mine did that,it was key switch.

[racin31]

i checked all the grounds even the battery and they were good... they key switch only works all the way to the rite so thats a good possibility...

[knoxville9]

well i had this kinda of problem and the red wire coming from the ground to the large wire bundle under my left fender ( not the cdi i believe it went past it) anyway it was completely sheared off and like 3 inches apart from itself and some months i wouldnt have any problems and randomly it'd die and blow fuses like crazy but i found it out so i hope this helps if you havnt already solved this