Hi Chester, I talked to you about carb tuning, but see only one screw on each and it is very limited by how much it turns because of the extruded part on the plastic end (screw).
I have a book on pre 1998 models, but the carbs aren't the same.
So I'm not sure what this screw is/does or what to do with it.
I'll call you and ask that you look at the image.
Thanks .)