I put in a new fuel sending unit in my fuel tank had cleaned the tank and filled the tank half full to check the sending unit and the fuel gauge out. It read half full so ok good. two days later the old gauge didnt work so tested it out and still couldnt get it to work so got a new fuel gauge...
Ok not sure if this is the problem or not about a year and a half ago we were fishing and the accelerator rod nut came off the rod . The boat been parked every since put it back to getter and and took it for a test run, now it runs good till you go 3/4 to full speed then run for a little bit...