16011-881-741 Float Valve Set - Overview. The 16011-881-741 Float Valve Set is a vital component of the Honda marine engine fuel system. This part regulates fuel flow precisely to the carburetor by controlling the fuel level inside the float bowl, which ensures stable and efficient engine performance. Its accurate function prevents over-fueling that could otherwise cause engine flooding or damage. Manufactured as a genuine OEM Honda part, it fits seamlessly within the original system architectur