Atlantic Jet Sports carries the complete line of Genuine Keihin PWC Carburetor High Speed Main Jets. 

Part #: N424-36-SIZE

NOTE: Genuine Keihin Carburetor Jets are only available in sizes ending in a "0" or "5". In between sizes are only available in aftermarket. Example: Size 100, 105, 110, etc are Genuine Keihin. Size 128, 132, 138, etc are an aftermarket brand.