I have twin inboard Mercruisers 7.4L engines. I just had a turn up. Start engines and let them run for 5 to 8 mintues and when pulling out of well port side stalls out. Gages all seem fine. I then fire it back up and runs great I even the the mechanic come back out and recheck the fuel filters and put a computer on and there are no codes. Not sure if anyone has experience this before? Any help or suggestions are welcome!!