MIKUNI Main Jet 4/042-290 for Optimal Carburetor Performance

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

The MIKUNI Main Jet 4/042-290 is designed to enhance the performance of your motorcycle or small engine by providing precise fuel delivery. Crafted with quality materials, this main jet ensures consistent and reliable operation, contributing to better throttle response and engine efficiency. Whether you're tuning for increased power or optimizing fuel economy, this component is an essential upgrade for your carburetor system. Easy to install, the MIKUNI 4/042-290 is compatible with a wide range of models, making it a versatile choice for enthusiasts and professionals alike.

Features:

• Precision-engineered for reliable fuel flow and performance

• Compatible with various motorcycle and small engine carburetors

• Constructed with durable materials for long-lasting use

• Facilitates fine-tuning of air-fuel mixture for optimal engine response

• Easy to install with standard maintenance procedures