Mikuni HSR Smoothbore Carburetors: 42mm ‘Easy’ Kit

The HSR Mikuni carburetor is a slide-type, smoothbore carburetor equipped with a roller-bearing two-piece slide for smooth and easy throttle pull. Features include a large capacity float bowl and high flowing needle-valve assembly. Tuning adjustments are made via slide needles, main and pilot jets and an adjustable accelerator pump. Three sizes are available; 42, 45 and 48mm. The 42mm is recommended for 74-95” engines, 45mm for 95-107” engines and 48mm for 107” and larger engines. Throttle spool uses stock 1990-up CV cables.

42mm ‘Easy’ Kits: To be used w/stock CV manifold, choke cable, air cleaner (stock or performance type) and throttle cables (cables from ‘90-up).

Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.