Yamaha - Float Chamber Assembly Carburetor Fuel System 6EK-14180-01-00. Overview. When a carb starts acting up, a lot of times it comes back to the float chamber not doing its job. I've worked on plenty of Yamahas where fuel levels were off, and it always shows up in how the motor runs. Going with a full assembly like this saves time and takes the guesswork out of rebuilding individual pieces. Once it's installed right, the engine settles in and runs clean and steady again.. Key Features. • Comp