Vae ist fuel pump, what could make this pump to much fuel to the point it loads up and stalls out?

I removed the va ist fuel diaphram and the motor runs fine. Is this an indication of stuck rings. Or maybe the float valve is not sealing well. I cleaned the carbs and reinstalled them only to have the same symtom. Everything looked fine and there was almost no gel in the carbs, I removed the jets and the float valves during cleaning. I don't have a manual yet. this is a 1978 evinrude 85 4 cyl 2 stroke, does not show any signs of overheating. some people have mentioned the filter could have junk in it, the thing floods out and stalls, it does not starve and stall. the spark is vantastic, the plugs have been cleaned and gapped. any Idea as to what could make the symtoms. When I removed the pump the motor ran fine until it ran out of gas, with the pump hooked up it loads up and stalls within minutes.