Hi Joe- I have a 1973 Evinrude 65 hp (on the original Chrystler bowrider with a push button switch on the controls). <br /><br />Over the past few years, the engine would bog down after the initial few minutes of use, and I would need to continure to shift in neutral and rev-it-up, then put it back in gear - where it would only go a few miles per hour. After a few minutes, it seemed to clear up and did not happen the rest of the day. <br /><br />The problem progressed such that now (after an engine tune-up) it runs great in neutral but it will not go above 5 mph in gear? Any thoughts?<br /><br />Thank you,<br />Mike