This VintCo reed valve kit is a newly manufactured replacement for Yamaha YZ490 and WR500 models, intended to restore proper reed valve operation when worn or damaged reeds cause poor running and difficult starting. Made with modern materials and manufacturing techniques for OEM-equivalent or better fitment and performance, it is CNC machined in the USA from high-quality material and rebuilds one side of one reed block.

Features

• Restores proper reed valve operation
• Helps address poor running caused by worn or damaged reeds
• Helps improve starting
• Improved durability compared with stock
• Improved performance compared with stock
• OEM-equivalent or better fitment
• Rebuilds one side of one reed block

Specifications

• VintCo Part Number: RVY016
• Product Type: Reed valve kit
• CNC machined
• Made in USA

Cross-Reference OEM Part Numbers

• 39X-13613-00-00
• 8AB-13613-00-00

Vehicle Fitments

• 1984 Yamaha YZ490
• 1985 Yamaha YZ490
• 1986 Yamaha YZ490
• 1987 Yamaha YZ490
• 1988 Yamaha YZ490
• 1989 Yamaha YZ490
• 1990 Yamaha YZ490
• 1992 Yamaha WR500
• 1993 Yamaha WR500