Main Jet for Mikuni RS Carburetors

Main Jet for Mikuni RS and HS Carburetors, Including Old Style 22-26mm Round Slides, and 33mm Pumper Carburetors - Select Size

Not meant for the "Chinese" Mikunis that use the .8mm thread. Some (especially those a few years old) use the .75mm thread. Other than the thread size, the jets are the same. The thread size is close enough that, with mild force (and a drop of oil), either jet can be used.
Will not fit flat slide carbs.
M5 x .75mm Thread

*No returns on jets.