Genuine Mikuni Carburetor Rebuild Kits contain an assortment of critical parts which may include gaskets, diaphragms, seals, hardware and more. This kit contains parts needed to rebuild one Mikuni BN46i or BN44i (BN44i-YAM) Carburetor for Yamaha GP Series Personal Watercraft engine with Power Valve System (Type 60T, 66E, 66V, 67X, 68N)