I have a 3gmf engine in a Hunter 34. It has high hours, but the oil is changed every 50 hours and it has a Racor 10 micron fule filter and that has be changed several times. It has plenty of fuel in the tank and all the fuel lines have been changed. What happens is the engine will die , but after bleeding the system it will start back up and run for sometime. Here is the latest scenario: It sat for 30 days, but started right up and ran for 9 minutes. I bled the system, restarted and it ran for 40 minutes, bled the system again and it started and ran for about an hour and a half when I shut it off. Suggestions