MIKUNI Main Jet 4/042-580 for Optimal Carburetion Performance

Large hex type used in most Mikuni carburetors. Mikuni # 4/042.

The MIKUNI Main Jet 4/042-580 is engineered to deliver precise fuel delivery for a wide range of carbureted engines. Crafted with high-quality materials, this main jet ensures consistent performance and reliable operation in various riding conditions. Its design allows for easy installation and fine-tuning to achieve optimal engine response and power output.

This main jet features a compact size with a length of approximately 0.35 inches and a width of about 0.10 inches, making it suitable for many applications requiring accurate fuel metering. The durable construction guarantees longevity under demanding engine conditions, reducing the need for frequent replacements. Whether tuning for performance or efficiency, the 4/042-580 provides a dependable solution for motorcycle, ATV, or small engine setups.

Designed by MIKUNI, a trusted name in carburetor components, this main jet is an essential part for enthusiasts and professionals seeking to optimize their engine's fuel mixture. Its precise specifications help improve throttle response, power delivery, and overall engine smoothness, making it an ideal choice for fine-tuning your vehicle's performance.

Features:

• High-quality construction for durability and longevity

• Precise fuel metering for optimal engine performance

• Easy to install and tune for various carbureted engines

• Compact size suitable for a wide range of applications

• Manufactured by MIKUNI, a trusted brand in carburetor components