Re: 3.0 LX Mercruiser Bogging Down
I am not convinced that your carburetor is causing the problem. If it is, it sounds like only the idle circuit is acting up. Whenever I have had the sort of problem, regardless of what kind of motor, 9 time out of 10 if was a vacuum leak. A sure-fire way to confirm a vacuum leak is to try and adjust your carb, especial the idle mixture screw. If no amount of adjusting helps, it is definitely a vacuum leak. Time to change the intake manifold gaskets and the carburetor gaskets. Good luck.