Yamaha - Float Chamber Gasket Carburetor Sealing Component 6FM-14984-00-00. Overview. The Yamaha Float Chamber Gasket 6FM-14984-00-00 is one of those small parts that can cause big headaches when it starts to fail. When it's not sealing right, you'll usually notice fuel seepage or inconsistent engine behavior pretty quickly. It sits between the float chamber and carb body, keeping everything tight so fuel stays where it should. If you're servicing the carb or chasing a leak, this is one of those parts you replace without thinking twice.. Key Features. • Secure Fuel Seal - Keeps the float chamber sealed to prevent leaks and maintain proper fuel levels.. • OEM Fit Precision - Designed to match Yamaha carburetor surfaces for a tight, reliable seal.. • Consistent Engine Operation - Helps maintain steady fuel delivery and smooth performance.. • Fuel-Resistant Material - Built to handle constant exposure to fuel and engine heat.. Engine & Boat Compatibility. F25 2016-2018. FAQs. Q1: What are