But if you know the theory and reasons for each circuit in your Mikuni, Keihin ... when the correct level is reached. On the bottom for the carburetor you typically have two jets.

Mikuni outs two new Performance Carburetor Kits based on their acclaimed HSR42 units. While the carb is basically the same unit, it's the back plates and mounting parts which make the difference.

Just off the press is their new 96 page **5th Edition Sudco Mikuni Carburetor Manual **featuring the complete line of Mikuni RM, VM, HSR, HS, TM, TMX and BN Carburetors and Fuel Pumps with Parts ...

HSR42 Kits come complete with a properly jetted Mikuni HSR42 carburetor, installation instructions, and works with your stock throttle cables. Included is a special adapter that allows you to ...