Hi all Im hoping someone can help I have a 1989 3.0 L mercruiser the issue I'm having is that the boat runs great for about 20-30 minutes but then it slowly starts to cuts out and eventually shuts off, if you keep it off for a little bit it'll start back up and do the same. We've had the carburetor rebuilt, new fuel lines, new fuel pump and ensured the motor was in time. Any ideas what it could be?
