Well this could be a very long story but I will sum it up. Boat it used, great motor for about a month, would not idle high enough to place in gear, it died. Took it to what I though was a reputable shop. They did 3000 worth of nothing to it and had the same problem 2 hours later. Blew the power head, burned 6 and 2 my gues is ran to lean or oil pump died. Pulled engine rebuilt it myself, new everything, done the right way, even reeds. Nice turn out, strted right up. I am on hour 10 of break in. Motor bogging. Switched to external tank, changed water separator, ran like a top for 6 gallons. Did some idle trolling for about a mile worth of no fish and now same problem again on external tank. I am running double oil. Cleaned plugs, ran tad better but running rough no power. 90lbs on fuel pump, regular opening, new pulse pump pushing 4 lbs like it is supposed too. New trigger on rebuild, all 6 are hitting. Clueless here! Running as if plugs are foul, but they are not. Don't want to kill new powerhead, HELP. I understand this motor, I am no expert but understand it, read the manual cover to cover, new fuel lines, so much new, same bug. Any takers?