I recently cranked up my 25hp Evinrude motor. It started on the second pull and ran fine for the first couple of minutes or so. Then it died as if I hit the kill button. I restarted and again after about 20 seconds, it died abruptly. I restarted and ran it a little faster (almost max throttle in neutral) and it doesn't die abruptly. But, it randomly misses - much like before - like I pressed the kill button for split second. It still has enough momentum to keep running since the ignition miss is somewhat instantaneous. <br /><br />More background: A few years ago I had the motor virtually rebuilt including much of the ignition system. I didn't use the motor for nearly a year after it was serviced. When I finally used it, it worked fine for the the first few hours of usage. The next time I used it (a few months later), after the motor got warm, it started this missing problem. At high speed, you could occasionaly experience the miss. But at low speeds, the miss would cause the engine to kill.<br /><br />I let the engine sit again for about a year or so. That brings us up to date - last week, when I put the motor in a makeshift tank and cranked it right up. I did put in fresh plugs, new gastank, hose, gas, oil, etc. I also hit the carb with a few shots of carb cleaner. Anyway, it started right up and ran fine for a couple of minutes then started missing occasioning - killing the motor at normal idle speeds.<br /><br />If I momentarily press the kill button while the motor is running normally, it mimicks the ignition 'miss' that I've tried to decribe.<br /><br />Please offer your thoughts on how I might troubleshoot/repair this problem. Thanks.
