Yamaha - Float - 6E5-14385-02-00Yamaha Float Carburetor Fuel System 6E5 14385 02 00 Overview If youve worked on carbureted Yamahas, you know the float plays a big role in how clean the motor runs. When its working right, fuel levels stay steady and the engine just hums along. But once it starts sticking or gets saturated, things go sideways fastflooding, rough idle, or inconsistent performance. Its a small part, but getting it right makes a noticeable difference out on the water.