Yamaha - Reed set - 6E0-W0004-00-00Yamaha Reed Set Intake System 6E0 W0004 00 00 Overview Reeds are one of those parts you dont see, but you definitely feel when theyre not right. On a 2 stroke Yamaha, they control how air and fuel enter the engine, and worn or chipped reeds can throw everything off. Ive seen motors lose throttle response or run rough just from tired reeds not sealing properly. Replacing them brings back crisp response and helps the engine breathe the way it should.