OK here's the deal, I have a set of 30mm Kenth carbs and when I turn the gas on it's fine but when start it up and turn it off gas starts dripping out the back of the carbs . I have a set of K&N's on the back of them now, but i don't know why they it is doing it, and its just the left carb, oh ya I pulled them off and cleand every thing out of them so I know they aren't dirty. PLEASE HELP ME WITH MY PROBLEM !!!!