Well; my first forum message was not answered, but I have learned more. My engine starts fine and idles very well at the dock. After I pull away and gun the throttle it bogs and goes about 1/2 speed at most. My marine mechanic wants me to take the boat out of the water and bring it down as it sounds like a carborator problem; not spark. Does anyone know if there is anything I could do to check out on the three carbs before I take it to them? Any suggestions would be helpful.