Yamaha - Float chamber assy - 69J-14180-23-00Yamaha Float Chamber Assembly Carburetor Fuel Control 69J 14180 23 00 Overview Anytime Im dealing with a carbureted Yamaha that wont idle clean or keeps loading up with fuel, I start looking at the float chamber. This assembly is what keeps fuel levels steady so the engine runs the way it should. When its off, youll feel it right awayespecially at low speeds or during startup. A fresh chamber assembly usually brings things back to smooth, predictable