"I have a 4.3 litre OMC on a 1
"I have a 4.3 litre OMC on a 1987 SeaRay. I can hook up a garden hose in the drive way and the boat will run all day long at any RPM. When I get to the river the boat starts fine and runs fine, when I launch it, I can get about a 100 yards and the motor dies and...