Yamaha - Float Chamber Gasket Carburetor Sealing Component 6BX-14984-00-00. Overview. When a carb starts leaking or running uneven, it's often something as simple as a worn gasket. This float chamber gasket seals the fuel inside where it belongs, keeping the system tight and working properly. I've seen engines run rough or flood just because an old gasket couldn't hold a seal anymore. Swapping in a fresh one is a quick fix that can make a big difference.. Key Features. • Leak Prevention Seal - Keeps fuel contained within the float chamber for proper operation.. • Maintains Fuel Pressure Balance - Supports stable fuel levels inside the carburetor.. • OEM Fit Accuracy - Matches Yamaha factory specs for proper sealing and alignment.. • Fuel Resistant Material - Built to withstand fuel exposure and engine heat.. Engine & Boat Compatibility. Verify compatibility with your specific Yamaha outboard model and part number before installation.. FAQs. Q1: What are signs this gasket needs replacin