Yamaha - Float Carburetor Fuel Level Control 6E7-14385-00-00. Overview. Floats are one of those parts that can throw everything off if they're not working right. I've seen engines flood out or starve for fuel just because the float wasn't doing its job. It's what controls fuel level inside the carb, so it has to move freely and seal properly. When it's dialed in, the motor idles clean and runs steady without any guesswork.. Key Features. • Accurate Fuel Level Control - Regulates fuel height within the carburetor for proper operation.• Smooth Float Movement - Designed to move freely for consistent fuel delivery.• Durable Fuel-Resistant Construction - Built to withstand constant exposure to gasoline.• Reliable Needle Valve Support - Works with the needle to maintain proper fuel flow.• Exact Yamaha Fitment - Matches factory specifications for proper balance and performance.. Engine & Boat Compatibility. Designed for Yamaha outboard engines utilizing carbureted fuel systems. Commonly used