My year long and maybe longer battles with tuning 33mm FCR carbs on a 1991 Bandit 400. I have learned much on the relationship between the air jet, air mix screw, and fuel mix. Still some tuning to go as I wait for a few different air jet sizes to come in. I never had such fine tuning issue with my 1994 GSXR 750! Smaller motor with big carbs; I guess.
