WSM Mikuni Main Jet Carburetors Jets

WSM Mikuni main jets are replacement carburetor main jets (also called high-speed jets) for Mikuni-style carburetors on motorcycles, ATVs, snowmobiles, and other powersports equipment. The main jet meters fuel at mid-to-full throttle. It is one of the most common parts to change when tuning a carburetor or restoring one.

Key Features:

• Replacement main jet: restores accurate fuel metering when an original jet is worn, damaged, or clogged with varnish.
• Brass construction: brass is the usual material for Mikuni-style jets. It machines to tight tolerances and resists corrosion.
• Precision-calibrated orifice: each jet size has a defined flow rate, so you can richen or lean the fuel mixture to suit altitude, temperature, exhaust, intake, or engine modifications.
• Wide size range: separate part numbers cover different jet sizes and Mikuni jet styles. Select the size and style that matches your carburetor.

Fresh main jets help with jetting changes and carburetor rebuilds, and they help the engine run cleanly across the throttle range. Choose the correct jet style and size for your carburetor model, and check the jet number against your carburetor's specifications before installing.