Yamaha - Float Chamber Gasket Carburetor Sealing Component 67F-14984-00-00. Overview. When you're working on Yamaha carburetors, it's usually the small sealing parts that end up causing the biggest headaches. A float chamber gasket that's worn or flattened can lead to fuel leaks or inconsistent engine behavior. The Yamaha Float Chamber Gasket 67F-14984-00-00 is what keeps that float bowl sealed tight so fuel stays controlled inside the carb. It's a simple fix, but one that makes a noticeable dif