Genuine Mikuni jets provide the best replacement or calibration solution for your aftermarket or OEM Mikuni carburetors.  Do not use an imitation, nothing substitutes for OEM quality and Mikuni jetting is guaranteed to be the exact size indicated because of high manufacturing tolerances.  Whether you're replacing worn or clogged jets or if you are recalibrating the carburetors for performance, the original Mikuni jets offer unmatched flow and performance.  The BS42/55 air jets meter air for the idle circuit and fit the Mikuni OEM BS (CV Type) series carburetors from Suzuki and Yamaha.


Some, but not all of the possible applications are listed below:

• OEM CV (BS) Carburetors, pilot air main air jet
• Suzuki GS1000
• GS1100 (80-82)
• Yamaha XS1100 (80-81)