I posted in an old thread and was deleted so I will post here. No offence taken.
I bought an older boat, 1994 Searay express cruiser 250, 5.7 liter with Bravo 2 leg. This boat has the old style corvette actuator.
The age isn't really an issue as the boat had only 325 hours on it and was garage...
You might check Ford pumps.
The engine is essentially half a Ford 390 cu in engine I think it 390 but definitely Ford.
I know I did a head gasket and from Merc it was $150 a Fel Pro gasket. I copied the number and went to an automotive parts store and got the exact same one for $18.
Could be...
I bought an older boat, 1994 Searay express cruiser 250, 5.7 liter with Bravo 2 leg.
The age isn't really an issue as the boat had only 525 hours on it and was garage kept and serviced every months. I got it at an estate sale.
The old guy that owned it used it as his man cave or unending last...
I have had issues similar to the original post's description.
I found out the reason basically by a fluke.
I could start the engine and it would run for awhile then quit, if I used the choke it would run a little longer but miss like a bucking horse.
Turns out it was a blocked gas tank vent. So...
