Mikuni KEIHIN SLOW JET

The Mikuni Keihin slow jet (also called a pilot jet or idle jet) is a replacement carburetor metering jet for Keihin-style carburetors. It controls the fuel delivered through the slow circuit, so it has a large effect on idle quality and low-throttle response.

Key Features:

• Meters fuel for the idle and low-speed circuit, from off-idle to about 1/4 throttle
• Lets you lean or richen the low-throttle mixture by changing jet size, usually together with the air screw
• Helps correct hesitation, a rough idle, or a lean or rich off-idle condition
• Made by Mikuni, a respected name in carburetors and jetting components for motorcycles, ATVs, and other powersports equipment
• Sold in multiple jet sizes so you can tune the carburetor for your engine, altitude, and riding conditions

A larger slow jet gives a richer mixture, and a smaller one gives a leaner mixture. Check the jet size and the carburetor model before ordering, and tune with the air screw once the jet is installed. This is a simple, inexpensive part to change when you are rebuilding or re-jetting a carburetor.