40 hp 4 stroke- oil leaking from fuel pump

[pacobells]

Any idea what is happening with this oil leak?

[ChuckB1954]

In order to get an answer you need to add more details, maybe even a picture of the leak.

[99yam40]

no one but the OP knows what motor he has or where the oil is coming out of

[rejesterd]

Maybe a rip in the fuel pump diaphragm or the o-ring is not sealing. Remove the pump and inspect.

[boscoe99]

Maybe a rip in the fuel pump diaphragm or the o-ring is not sealing. Remove the pump and inspect.

That's it.

[almetelo]

Replace the O-ring on the outside of fuel pump

Have a look on this example:

https://www.boats.net/catalog/yamaha...f40tlra/fuel-1

Part #15