Mikuni 350 Main Hex Jet for Mikuni 350 Carburetor Main Jet

Mikuni 350 Main Hex Jet

This Mikuni 350 main hex jet is a carburetor fuel-metering component that controls the main circuit fuel flow for small engine and powersport carburetors.

Overview

This main hex jet is a replacement fuel-metering part for carburetors that use a size 350 main jet. It threads into the carburetor float bowl area to regulate fuel delivery through the main circuit at wide-open throttle. Riders, mechanics, and small engine technicians use this main hex jet when tuning or rebuilding a carburetor that calls for a 350 size.

Built For Performance

• Size 350 main jet sizing for the main fuel circuit
• Hex head design for straightforward installation and removal
• Threaded body that seats into the carburetor jet tower
• Calibrated orifice for consistent fuel metering
• Compact brass-style construction common to jetting components

Specs At A Glance

Good To Know

Q: How do I know if I need a 350 main hex jet? A: The correct main jet size depends on your carburetor, altitude, and tuning setup, so match the size specified for your application or the jetting chart for your machine.

Q: Does the jet size number refer to the hole diameter? A: Mikuni main jet numbers indicate flow size, not a direct measurement in millimeters, so always select by the number your carburetor tuning calls for.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.