Here's the history: 1) bayliner with 90hp force. Bought boat and motor used, fully checked out by dealer and ran great. 2)Partner, new to boating, flushed engine in full tilt up position. 3) Next time I took the boat out engine ran poorly. I find fuel shooting out of one of the carbs (through a port in the side of the carb) and a pool of fuel in the case. 4) Questionable mechanic replaces choke mech. and pulls carbs for cleaning. 5) Boat runs awful, shop refunds all money. 6) Tune up by repected mechanic with dyno. Performance improves but boat still runs poorly - idles fine, rough in middle, smooth at high end. Poor acceleration especially with any load. New plugs, adjusting idle screws, premium gas and oil and a prop change makes no difference. I suspect only 2 cylinders firing. Plugs wet/black. 7) Towing my kids on an innertube, do a few turns and the fuel line pops off. The engine revs up and the boat takes off like a scalded rabbit. 8)My eyes get real big 9) I try it again - same thing.<br /><br />Any Ideas? I suspect a problem from carb reassembly (but I don't know a thing about 2 strokes.) Diaphram? Float? Needle valve? Help!
