.....I have torn apart numerous 2 stroke carbs. I am now faced with the task of replacing the main in my KFX400 (4 stroke). I have a schematic of the carb. So I know where it is, but don't know the steps. Anyone done this? Any help would be greatly appreciated.
Thanks. -Spode.

Spode, there should be an access bung at the bottom of the float bowl directly underneath your main jet. Just unscrew it and change out the main jet. I think I remember the DRZ400 dirtbike being this way. It may help to loosen the carb at both ends and rotate it so it's easier to get to.

and be ready to replace the 4 bowl screws, they strip out real easy!!

Thanks guys, that's how I remember 2-smokes. That little thing about the screws, Does that mean I can't use my 1" impact with 1250 ftlbs tourqe?
-Spode