Naraku Racing Cylinder Head - Yamaha Cygnus 4v

Upgrade your Yamaha Cygnus or BWs 5ML engine with the Naraku Racing Cylinder Head. This high-performance cylinder head is designed to maximize airflow and combustion efficiency, delivering a significant boost in power and torque. Experience enhanced acceleration and top-end performance with this premium aftermarket upgrade.

Description

The Naraku Racing Cylinder Head is specifically engineered for use with big bore cylinders on Yamaha 5ML 4-valve engines. Featuring larger, stiffer valves and upgraded valve springs, this cylinder head optimizes valve control at high RPMs, preventing valve float and ensuring consistent performance. The 23mm inlet valves and 21mm exhaust valves provide increased flow capacity, allowing your engine to breathe more freely. The optimized port design further enhances airflow and combustion efficiency. Installation is straightforward, making it a perfect upgrade for enthusiasts and professionals alike. Increase horsepower and unlock the full potential of your Yamaha engine with the Naraku Racing Cylinder Head.

Features & highlights

• Maximizes airflow and combustion efficiency for increased power and torque.
• Equipped with larger, stiffer valves and upgraded valve springs for improved high-RPM performance.
• 23mm inlet and 21mm exhaust valves enhance flow capacity.
• Optimized port design for superior airflow.
• Designed for Yamaha Cygnus and BWs 5ML 4-valve engines with big bore cylinders.
• Provides noticeable improvements in acceleration and top-end speed.

Technical specifications

• Brand: Naraku
• Inlet Valve Diameter: 23 mm
• Exhaust Valve Diameter: 21 mm
• Inlet Connection Diameter: 27 mm
• Exhaust Connection Cross Section: 26 mm
• Engine Code: 5ML

Important to know

This cylinder head is designed for use with big bore cylinders and is not compatible with the original 125cc cylinders. Ensure compatibility before purchase.