Yamaha - Reed Valve Assembly Intake System Component 6H3-13610-00-00. Overview. Reed valves are one of those parts you don't notice until the engine starts losing its edge. When they wear out or don't seal right, you'll feel it in throttle response and overall performance. I've replaced sets like this on older motors and the difference is night and day-cleaner acceleration and smoother running. It's a small component that plays a big role in how your engine breathes.. Key Features. Efficient Airflow Control - Regulates air and fuel mixture entering the engine for proper combustion.. Responsive Throttle Performance - Helps restore crisp acceleration and smooth engine response.. Durable Reed Construction - Built to handle constant flexing and engine vibration.. Precision Fit Assembly - Designed to match Yamaha specifications for proper sealing and alignment.. Supports Engine Efficiency - Helps maintain consistent performance across operating ranges.. Engine & Boat Compatibility. Designed