YZ 85 Stage 3 tuning package

VRD Stage 3 Tuning Package – Yamaha YZ85

The VRD Stage 3 Package for the Yamaha YZ85 is a complete high-performance engine build developed in-house at VRD Motorsport. Designed to maximise power, throttle response, and overall rideability, this package transforms the YZ85 into a race-ready machine with proven dyno gains and real-world performance improvements.

Built around precision engineering and extensive dyno development, the Stage 3 package delivers a significant increase in both horsepower and torque across the rev range while maintaining reliability.

Package Includes

• Fully ported cylinder (VRD specification)
• Modified OEM cylinder head
• GET CDI with custom VRD mapping
• Full performance exhaust system
• Boyesen RAD Valve intake system
• VRD lightweight billet steel conrod (+4mm longer)
• Laser-cut base plate
• Custom offset power valve arm
• Custom power valve cover (to suit +4mm cylinder height)

Performance

• Significant gains in peak power and torque
• Stronger mid-range pull and improved over-rev
• Sharper throttle response and acceleration
• Optimised for Shell V-Power 99 RON pump fuel

Build Information

The listed price is based on a brand new Yamaha YZ85 built and completed at VRD HQ to our exact specifications, ensuring consistency, quality, and performance.

Recommended Upgrade

For optimal reliability and cooling performance, we recommend adding the VRD Fan Kit, available as a bundle for an additional £299.

Why Choose VRD Stage 3

• Developed through extensive dyno testing
• Designed for maximum performance without compromising reliability
• Built using precision-engineered components
• Proven results both on the dyno and on track