Yamaha - Float Chamber Body Carburetor Fuel Control 6H4-14980-00-00. Overview. When a carb isn't behaving right, a lot of times the issue traces back to the float chamber. I've worked on plenty where corrosion or buildup inside the bowl caused inconsistent fuel levels and rough running. This part is what keeps fuel metered correctly before it even reaches the engine. Get this right, and everything downstream tends to smooth out.. Key Features. Fuel Level Control Housing - Holds fuel at the correct level for consistent carburetor operation.. Stable Fuel Delivery Support - Helps maintain proper fuel flow for smooth engine performance.. OEM Precision Design - Built to Yamaha specifications for proper fit and internal function.. Corrosion-Resistant Construction - Designed to handle fuel exposure and marine environments over time.. Critical Carburetor Component - Supports reliable operation of the float and needle system.. Engine & Boat Compatibility. Designed for Yamaha outboards equipped