I have a Evinrude 7.5 hp outboard that was built in 1956. model no. 7520. I cleaned and rebuilt the carb. It cranks and runs good after I pump the fuel ball. It will run for a few seconds, surge and quit. It will run as long as i keep priming the ball. It has a external pulse fuel pump. What...
I have a 7.5 hp Evinrude engine built in 1975. Have rebuilt the carburetor and put on new pulse fuel pump. Engine runs good as long as I pump the primer ball. when I stop the engine will surge and cut off. carb bowl is empty