Yamaha - Float - 6A1-14385-00-00Yamaha Carburetor Float Fuel Level Control Component 6A1 14385 00 00 Overview Inside the carb, this is what keeps fuel levels where they need to be so the engine runs smooth and steady. When the float is working right, you get clean starts and consistent throttle without thinking about it. But once it gets heavy, sticks, or wears out, fuel delivery gets thrown off and the engine lets you know fast. Its a small piece, but its one of the main reasons a