VForce 4 Reed Valve Set V4R82A-I — Yamaha YZ80 / YZ85 1993-2026

VForce 4 Reed Valve Set V4R82A-I — Yamaha YZ80 / YZ85 1993-2026

Product Description

Unlock the hidden potential of your 2-stroke engine with the VForce 4 Reed Valve Set. Designed by the experts at Moto Tassinari, the V4R82A-I is engineered to deliver lightning-fast throttle response and a significant increase in overall engine efficiency. Whether you are racing on the track or practicing on the local trail, these reeds are built to provide consistent power delivery across the entire RPM range.

The VForce 4 utilizes a wider reed cage and a proprietary carbon fiber resin system to maximize airflow, while the added reed stops ensure long-term durability by controlling petal tip velocity. With a 10.5% increase in combined reed tip area and an aerodynamic central wing, this system effectively optimizes the air-fuel mixture, giving your Yamaha YZ85 or YZ80 the competitive edge it needs to perform at its peak.

Top Features: VForce 4 Reed Valve Set

• Advanced carbon fiber petal system for superior durability and engine response.
• 10.5% increase in reed tip area to significantly improve airflow and power.
• Aerodynamic central wing design reduces drag and increases intake velocity.
• Pre-curved reed petals provide a tighter seal for improved low-end performance.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Sub-Model
2022-2025	Yamaha	YZ85 LW
2003-2026	Yamaha	YZ85
1993-2001	Yamaha	YZ80

Frequently Asked Questions

Q: Will this reed valve set increase my top-end power?
A: The VForce 4 is designed to improve power throughout the entire RPM range, particularly enhancing throttle response and transition, which helps the engine pull harder into the top end.

Q: Is this a direct bolt-on replacement?
A: Yes, the VForce 4 is designed as a direct replacement for your stock reed cage, making installation straightforward.

Expert Pro-Tip: When swapping reed valves, always inspect the intake manifold boot for any cracks or air leaks. A leaking intake boot will negate any performance gains from the new reeds and can lead to a lean condition that puts your top-end at risk.

Recommended Pairings:
o Yamaha YZ85 Performance Parts & Upgrades
o Yamaha 2-Stroke Performance Parts
o Essential Intake & Engine Maintenance Tools

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

Moto-House MX – Choice of Champions – Clermont / Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.