I have 1975 70hp evinrude ser#j0015564 mod#7057. While trying to fix a fuel related problem I lost spark. The top cylindar wasn't running and I had pulled the plug and hung it against the motor to see if it would spark. I had spark and had decided that my problem had to be fuel related. I left for a while and came back to try spraying fuel in top carb while engine was running to narrow possibilities. While engine was running fuel in carb didnt have any effect. I was playing with the throttle controls on the side of the carbs when the engine caughed and died. It wouldn't restart and after looking I realized I had been running it with that spark plug hanging. Know I have no spark in any cylindar. I am assuming my loss of spark is due to this but don't know wheather operating the throttle linkages @ the carb instead of using the throttle lever and allowing it to change the timing at the same time could have caused a problem. I didn't accelerate it very much. Assuming my problem was arc relatted, what part of the electrical system did I most likely hurt. Any advise would be greatly appreciated.
