Mikuni Rebuild Kit for Super BN Series 46mm I-Series Carburetor MK-BN46I Kits include all necessary diaphragms, gaskets, and hardware required to disassemble and rebuild Mikuni BN34, BN38, BN44 and BN46 square pump and round pump watercraft carburetors Must determine model size of carburetor because chart lists by carburetor model size Needle and seats sold separately Kits sold per carburetor