Having a problem starting hot and keeping running. 1976 302ci. Merc. 2barrel Rochester. ALL ignition new, including starter. Boat cranks and sometimes starts but as soon as there is any load it falls on it's face and dies. Got to a point where there was no start at all. This has happened 3 seperate times. When it's cold it starts right up! Runs great for 3+ hours. Carb funtioning great as best I can tell, but after running it WOT awhile it starts acting up like it's out of fuel but you can see accelerator pump shooting fuel down intake. Water temp at 150 to 200 at WOT at the gauge. New fuel filter, inline screen clean. What could it be? I'm thinking fuel pump, but I don't know?
Ken
Ken