Yamaha - Reed Set Intake System Component 6L5-W0004-02-00. Overview. Reeds are one of those parts you don't think about until the motor starts acting up-hard starts, rough idle, or just not pulling like it used to. When they wear or chip, performance drops off quick. This Yamaha reed set is what you put in when you want that crisp throttle response and smooth idle back. It's a straightforward fix that makes a noticeable difference, especially on older two-stroke setups.. Key Features. Improved A