Yamaha - Float Chamber Gasket Carburetor Sealing Component 65W-14384-00-00. Overview. If you've ever torn into a Yamaha carburetor, you know how important the small sealing parts are. A worn float chamber gasket is one of those things that can quietly cause fuel leaks or rough running if it's not doing its job. The Yamaha Float Chamber Gasket 65W-14384-00-00 is what keeps the carb sealed tight so fuel stays where it should. It's a simple piece, but without a good seal, the whole carburetor syste