[dippasan]

Sorry for the delayed response.
Sometimes that thing called work gets in the way.

The boat only has one tank and my problem shows on only one of the engines so I'm not ruling out a fuel issue but it's not high on the suspect list yet.
I did treat the fuel with the appropriate amount of stabil and Star-tron enzyme treatment last fall and I then ran the engines for a while to get the treated fuel into the engine fuel systems. I don't have any diagnostic tools like fuel pressure testers etc so I will double/double check all my work. I don't want the boat to be down for long with 4th of July just around the corner so I'll probably let the experts have a go at it soon.