Yamaha - Float Chamber Cover Carburetor Component 6D8-14182-20-00. Overview. This float chamber cover is one of those parts that seals up the bottom end of your carburetor and keeps everything contained where it should be. It doesn't get much attention, but when it starts leaking or warping, you'll notice fuel issues pretty quick. I've seen plenty of motors come in with simple problems traced back to a worn cover or bad seal here. Keep it tight and sealed, and your carb stays consistent and dependable.. Key Features. Secure Chamber Sealing - Closes off the float chamber to prevent fuel leaks and maintain proper operation.. Proper Fuel Containment - Helps keep fuel where it belongs inside the carburetor during all engine conditions.. OEM Fitment - Matches Yamaha specifications for correct alignment and easy installation.. Durable Construction - Built to handle fuel exposure and typical marine wear over time.. Engine & Boat Compatibility. Designed for Yamaha outboards equipped with carbu