I'm not arguing with you guys, but looking a the carb. listings (from seadoosource) it appears that in about 1999 Mikuni changed the carb. designations. Like from a BN-461 to a BN-461-42. I thought the -42 meant 42mm, so what is the -42 designation? They also changed the BN-401 to BN-401-38.
Lou