Reed Valve System Fits For Yamaha YZ400 CR250R CR125R V3144-1

Reed Valve System for Yamaha

This high-performance reed valve system regulates fuel-air mixture intake in two-stroke engines, cross-referencing part number V3144-1.

Overview

This reed valve system is engineered to optimize the fuel-air intake flow into the combustion chamber for improved throttle response. Designed for competitive racers and off-road riders, this reed valve system maximizes peak horsepower and mid-range torque. Installing this reed valve system helps eliminate air turbulence and ensures a more complete burn during ignition.

Built For Performance

• Carbon fiber reed petals for quick responsiveness and high-RPM stability.
• Aero-designed reed cage to maximize air velocity and intake volume.
• Symmetrical reed tips to ensure a consistent and complete seal against the cage.
• Direct-fit intake boot compatibility for straightforward installation on supported models.

Fits These Machines

• for Yamaha YZ400
• for Honda CR250R
• for Honda CR125R

On-The-Job Use

• Improving low-end power delivery on motocross tracks.
• Replacing worn or chipped stock reeds causing hard starting.
• Tuning two-stroke engines for faster acceleration in trail environments.

Specs At A Glance

Good To Know

Q: How often should reed petals be inspected? A: It is best to check the carbon fiber petals every 15 to 20 riding hours for signs of fraying or chipping.

Q: Do I need to re-jet my carburetor after installation? A: Slight jetting adjustments may be required to fully optimize the increased airflow this valve system provides.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.