Yamaha - Reed valve asy - 6H5-13610-00-00Yamaha Reed Valve Assembly Air Intake & Fuel Control 6H5 13610 00 00 Overview On a two stroke Yamaha, the reed valves are a big part of how the motor breathes, and when theyre not sealing right, youll feel it immediately. Ive worked on engines that just wouldnt idle clean or had a hesitation off throttle, and it often came back to worn reeds. Its not always the first thing people check, but it makes a noticeable difference when its right. Swap in a