hey folks. I been working on a 1983 35hp evinrude. Rebuilt carbs. New fuel pump. But it continues to bog down at full throttle. Engine has good compression. Can’t find no bad or broke wires. When I removed the fuel line from carb spinn it by starter. After priming fuel to the pump. It shoots out 3 or 4 stream then stops pumping. I’m thinking it should continue to pump. Or does it need to be running to have enough vacuum to continue to pump. I checked all lines from carb to the sump. There air tight. So I’m thinking if it should continue to pump while spinning starter. Thin I must have a vacum leak. What you fellows think