YAMAHA FUEL PUMP MEMBRANE 63V-24411-00

Function and technical context

The fuel pump membrane is an essential component in the fuel supply system of Yamaha engines. This piece acts as a seal and functional element within the pump, allowing the correct circulation and pressurization of the fuel from the tank to the carburetor or injection system. Wear or deterioration of the membrane causes pressure losses in the fuel circuit, resulting in misfires, irregular engine operation and, in extreme cases, the complete inability of the engine to start or maintain running.

When to replace this part?

Typical symptoms of a faulty diaphragm include difficulty starting, especially after prolonged periods of inactivity, hesitant running or loss of power during acceleration, and in advanced cases, fuel leaks around the pump. It is recommended to check and replace the membrane as part of seasonal maintenance, especially if the engine has any of these symptoms or if it has been stored for several months. The preventive replacement of this part is an economical measure that avoids costly breakdowns in navigation and guarantees reliable operation of the engine.

Equivalent manufacturer part numbers