1991 Evinrude 9.9 problem

[Blakemise]

I just recently bought a 14ft Jon boat with a 1991 evinrude 9.9 outboard on it. I got the boat to a local pond to test it and the motor cranked on the 4th or 5th pull and ran fine. I ran it around the pond for about 5 minutes and it quit and wouldn't start back. I tore down the carb and cleaned it well, dumped the old fuel in the tank and mixed new 100/1 and tried it again and the same thing happened. I waited for about 10 minutes and it finally cranked back up but if I gave it any throttle or put it in gear it would die. I'm not sure if it's flooding or what. I need help!

[boats.net]

Thats usually straving for fuel, try pumping primer bulb and choking it to see if starts, if so then may have bad fuel pump or carbs still plugged up. Check for spark at plugs when fails to start.