MIKUNI Main Jet 4/042-440 for Motorcycle Carburetors

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

The MIKUNI Main Jet 4/042-440 is an essential component designed to optimize your motorcycle’s carburetor performance. Crafted with precision, this main jet ensures the correct fuel-to-air ratio for smooth throttle response and efficient engine operation. Whether you're tuning for peak performance or maintaining your motorcycle, this jet provides reliable and consistent fuel delivery.
Constructed from durable materials, the MIKUNI 4/042-440 is engineered for longevity and dependable operation under various riding conditions. Its compact design allows for easy installation and compatibility with a wide range of motorcycle models that use MIKUNI carburetors. Proper jetting is critical for achieving optimal power, acceleration, and fuel economy, making this main jet an indispensable part of your motorcycle maintenance kit.
Upgrade your motorcycle’s carburetor assembly with the MIKUNI Main Jet 4/042-440 to enhance overall engine performance. This part is ideal for riders seeking precise fuel adjustments and improved throttle response. Trust MIKUNI’s quality engineering to maintain your motorcycle’s performance and reliability over time.

Features:

• Precision-engineered for optimal fuel delivery

• Durable construction for long-lasting performance

• Compatible with various MIKUNI carburetor models

• Ensures accurate fuel-to-air ratio for smooth operation

• Easy to install and replace