Yamaha - Float Chamber Gasket Carburetor Seal 6J8-14984-00-00. Overview. A lot of carburetor issues come down to small sealing parts like this. When the float chamber gasket starts to fail, you'll usually see fuel leaks, inconsistent running, or that strong fuel smell around the motor. I've replaced plenty of these during carb rebuilds, and it's one of those simple fixes that makes a noticeable difference. Keep the seal tight, and the carb does its job the way it should.. Key Features. Leak Prevention Seal - Creates a tight seal between the float chamber and carburetor body.. Fuel-Resistant Material - Built to handle constant exposure to gasoline without breaking down.. Precision Fit Design - Matches Yamaha specifications for proper alignment and sealing.. Supports Stable Operation - Helps maintain consistent fuel levels inside the carburetor.. Ideal for Maintenance Service - Commonly replaced during carburetor cleaning or rebuilds.. Engine & Boat Compatibility. Designed for Yamaha out