Mikuni Large Hex Main Jet for Carburetors Jets

The Mikuni Large Hex Main Jet is a replacement carburetor main jet for tuning fuel delivery in Mikuni carburetors. Main jets (also called fuel jets) meter the fuel that flows through the carburetor at mid-to-high throttle, so they directly affect air/fuel mixture, throttle response, and engine performance.

Key Features:

• Large hex head design for easy installation and removal with a standard socket or wrench
• Precision-machined brass construction for consistent fuel flow and long service life
• Offered in a range of jet sizes so you can fine-tune the mixture for your setup
• Made by Mikuni, a well-known maker of carburetors for motorcycles, ATVs, snowmobiles, and other powersports and small-engine equipment

Changing the main jet is a common way to adjust the carburetor after you change the exhaust, air filter, altitude, or temperature. Pick the jet size that matches your tuning needs and your engine's requirements.