Mikuni 004.244 Small Hex Main Jet - Size 150

The Mikuni 004.244 is a precision-engineered small hex main jet designed for optimal fuel metering in Mikuni carburetors. This size 150 jet features the compact hexagonal head design that is standard across most Mikuni carburetor applications.

Key Features:

• Small hex head design for easy installation and removal
• Size 150 metering orifice for precise fuel flow control
• Compatible with most Mikuni carburetor models
• Direct OEM replacement jet
• Manufactured to Mikuni's exacting quality standards

Main jets are critical components for carburetor tuning, controlling the fuel delivery at wide-open throttle and high RPM operation. The small hex design allows for adjustment with standard hex drivers while maintaining a compact profile within the carburetor body. Ideal for performance tuning, altitude compensation, or replacing worn jets to restore optimal engine performance.