Yamaha - Reed valve assy - 6K7-13610-00-00Yamaha Reed Valve Assembly Air Intake Component 6K7 13610 00 00 Overview The Yamaha Reed Valve Assembly 6K7 13610 00 00 is one of those parts that quietly controls how your engine breathes. When its working right, throttle response feels crisp and the motor runs clean through the range. When its not, youll notice hesitation, poor idle, or that sluggish feel coming out of the hole. Its a key piece in keeping air and fuel moving the way Yamaha intended.