Low RPM & Speed with Merc 200

[Duke01]

I took the Welly out on Lake Erie last night, it had been a month since I had started the engine and 3 months since I had her out on the water (the motor yacht always seems to get more attention - no surprise there). The old Merc started right up, ran smooth, all good except I maxed out at 20 MPH and 4000 RPM. Tried 4 times and never exceeded 20 MPH. I pumped the bulb for a 2nd and 3rd time, same results. So, I am thinking maybe a bad fuel pump, or perhaps a possible leak in the fuel line? I am going to install an inline fuel pressure gauge and check the tank vents too.

It is a 1980 motor, so the fuel pump (88853A1) does net seem to be available (?)

I welcome any input from the group.

Thanks, as always, Duke