I had to remove my flame arrestor/air box and then the plate for it from the carbs, but the carbs i cannot remember if they had to come off as well, they might I almost want to say that yes I did have to remove the carbs as well. I could not get anything no matter what to fit in there, I even tried a distributor wrench. Please note that it would help alot if you add your ski info to your avatar, we have no clue what year or motor it is.