125 Mercury Starting Issues

[Biggerfish]

OK I never did this before, Ask for expert help that is online.

Here is my problem, My boat has a 2001 125 merc 2 stroke and seems to not keep fuel presure? I need to pump the ball before starting every time. Even if I only shut it off for 20 minutes the presure is gone. Now when starting it in the morning I need to keep pumping the ball several times with trying to turn it over in between. Now once the otor is running it runs great.

[Valv]

Replace the fuel bulb on your fuel line.

There is a check valve inside it to keep flow one way, looks like it its not working and allows gas to run back into tank.

[Biggerfish]

Thanks Valv,

But that was the first thing I did. Seems to be better but still I don't remember having to pump it every time to start the motor, at least not on my 25 hp Yamaha.

Any other sugestions?

[Valv]

You could have a fuel pump issue, but if motor runs fine at full throttle I don't think it's the culprit.

If you have a "quick connect" fuel connector on motor, check that also, they have the same "check valve" the bulb has.