Yamaha - Float Chamber Cover Carburetor Sealing Component 6EK-14182-00-00. Overview. When you're working on carburetors, the float chamber cover is one of those parts that has to seal perfectly or nothing else works right. I've seen small warps or corrosion here cause fuel leaks or throw off how the engine runs. It might look simple, but it plays a big role in keeping fuel contained and pressure stable. When it's seated right, the whole carb system just behaves the way it should.. Key Features.