YAMAHA FUEL PUMP MEMBRANE 62Y-24411-02 PAF25-05130100

Function and technical context

The fuel pump membrane is the essential component that generates the pulsating movement necessary to push fuel from the tank to the carburetor or engine injection system. This part works in the petrol feeding system, where its function is to create compression and expansion cycles that maintain a constant flow of fuel under controlled pressure. When the membrane wears out, loses elasticity or cracks, the pump stops generating the necessary pressure, causing a poor supply of petrol that directly affects engine starting and performance.

When to replace this part?

The membrane requires replacement when the engine experiences difficulty starting, runs irregularly or loses power, typical symptoms of a pump that does not supply petrol at the proper pressure. Although there is no fixed replacement interval, it is advisable to inspect the condition of the membrane at each seasonal inspection, especially if the boat has been stored for months or if petrol with an abnormal smell is detected in the circuit. Replacing this part preventively during spring maintenance prevents unexpected breakdowns while sailing and ensures that the engine always receives the necessary fuel with the correct pressure.

Yamaha Engine Compatibility

Equivalent manufacturer part numbers