Mikuni 4/042 Main Jet – #390 – 4 stk – 4/042-390

Optimize your Mikuni carburetor’s performance with genuine Mikuni 4/042 Main Jets #390. This 4-pack of precision-engineered main jets is essential for fine-tuning your motorcycle’s fuel delivery, ensuring optimal power and efficiency across various riding conditions.

Description

Achieve peak engine performance and responsiveness by precisely adjusting your carburetor’s fuel mixture with these high-quality Mikuni 4/042 Main Jets. Designed for a wide range of Mikuni carburetors, including the VM18 (clamp on), VM24-512, VM26-512, VM26-606, and TMX Series, these #390 main jets are crucial for correcting lean or rich conditions that can impact throttle response, power output, and fuel economy. Whether you’re upgrading your exhaust, modifying your air intake, or simply seeking to restore original performance, proper motorcycle main jets are paramount. Each jet is meticulously manufactured in Japan to Mikuni’s exacting standards, guaranteeing consistent flow rates and reliable operation. This 4-pack provides multiple jets for thorough testing and ensures you have spares for future tuning needs. Ensure your engine runs at its best with these authentic Mikuni carburetor jets.

Features & Highlights

• Precision Fuel Tuning: Engineered to the exact #390 specification, these Mikuni 4/042 main jets allow for precise adjustment of your carburetor’s fuel-air mixture, optimizing engine performance and efficiency.
• Broad Mikuni Carburetor Compatibility: Specifically designed to fit popular Mikuni carburetors such as the VM18 (clamp on), VM24-512, VM26-512, VM26-606, and TMX Series, ensuring a perfect fit for a wide range of motorcycles.
• Genuine Mikuni Quality: Manufactured in Japan, these main jets uphold Mikuni’s renowned reputation for quality and durability, providing reliable and consistent fuel delivery.
• Versatile Application: Ideal for both restoring original equipment (OE) performance and for custom tuning projects where specific jetting adjustments are required.
• Convenient 4-Pack: Includes four #390 main jets, offering excellent value and ensuring you have multiple options for thorough carburetor setup and future maintenance.

Technical Specifications

• Brand: Mikuni
• Jet Series/Type: 4/042
• Jet Size: #390
• Quantity: 4-Pack
• Country of Origin: Japan

Important to Know

• While compatible with several OE applications, always verify the dimensions of these main jets against your existing components before ordering to ensure correct fitment.