I have a 1993 Bayliner w/ a 3.0 mercruiser. It has sat for 2 years before I got it 2 weeks ago. I drained all the bad gas, rebuilt to carb & put a new in line filter, plugs, cap & rotor. I am just frustrated w/ the fact that it take off well, planes out and when you hit about 4200 rpm, it cuts...