Yamaha - Float - YA2-80625-05-08Yamaha Float Carburetor Component YA2 80625 05 08 Overview When a carburetor isnt holding a steady fuel level, youll feel it right awayhard starts, rough idle, or even flooding. Ive worked on plenty of Yamahas where the float was the root of the problem, not the whole carb. The Yamaha Float YA2 80625 05 08 helps regulate fuel inside the carburetor so everything stays balanced. Its a small part, but it plays a big role in how smoothly your engine runs.