Mikuni Main Jet Carburetor Jets

Mikuni main jets are precision-machined carburetor jets for fine-tuning the fuel mixture at wide-open throttle and upper mid-range. They suit Mikuni carburetors on motorcycles, ATVs, snowmobiles, personal watercraft, and other powersports and small-engine equipment. Many riders and tuners also call them main fuel jets or carb jets.

Key Features:

• Meters fuel flow through the main circuit to set the air/fuel ratio at high throttle openings
• Precision-machined brass construction for consistent flow and durable, corrosion-resistant service
• Available in a range of calibrated jet sizes, so you can tune for jetting changes such as altitude, temperature, exhaust and intake modifications, or engine upgrades
• Made by Mikuni, a long-standing Japanese carburetor manufacturer whose carburetors are used on many OEM and aftermarket applications
• Simple to install and replace with basic hand tools, so you can adjust jetting quickly

Correct main jet selection helps with throttle response, power delivery, and engine reliability. Replacing worn or clogged jets restores proper fuel metering. Choose the jet size and style that match your Mikuni carburetor and tuning needs.