Hi all, Ive got a neighbor that saw me working on my motors and wants me to fix his. He has a 1999 merc 40 h.p. 4-stroke 3 cylinder, that he wants the carbs cleaned. How hard would it be to do this and sync up all the carbs. Anybody have any info on these. I can rebuild an old rude or johnson with my eyes closed but these new ones make me nervous. Dutch