MIKUNI 4/042-540 Hex Main Jets - High-Performance Fuel Jet Kit for Powersports Engines

Upgrade your powersports engine's performance with MIKUNI's precision-crafted Hex Main Jets. These critical fuel delivery components ensure accurate air-fuel mixture ratios, enhancing power output and throttle response for riders who demand peak performance.

Key Features

• Hexagonal Jet Design: Ensures secure, leak-free installation in carburetor systems
• High-Quality Brass Construction: Resists corrosion and maintains accuracy under extreme operating conditions
• Exact Fitment: Specifically engineered for MIKUNI carburetors with 4/042-540 specifications
• Easy Installation: Compatible with standard jetting tools for quick tuning adjustments

Why Choose This Product

MIKUNI Hex Main Jets deliver reliable performance for off-road and street applications. Their precision engineering ensures consistent fuel flow, improving engine efficiency and responsiveness. Riders benefit from smoother power delivery, better fuel economy, and reduced wear on carburetor components. These jets are essential for maintaining optimal engine performance in high-output powersports vehicles.