I have cleaned the carbs, and the jets. The engine ran at idle and even a little higher for a half hour then I shut it down. I did not test it in gear. Put the boat in the water and ran good at first at low idle. Parked it then took the boat again put in gear and revved it up it started to miss and eventually died and would not start. I thought it might be overheating but now I am thinking it may be flooding out. After 4-5 minutes it will start again, any suggestions? I have the summer off and my boats not working 