[Yachts]

Last fall I started to have a problem where light on line 2 on the 240 side would flicker and eventually the other legs would flicker and generator would stop making power.  Replaced voltage regulator and all was good for last 6 months. On trip over the weekend line 2 again began to flicker. I also noticed volts on the meter were no longer at 120 but 110.. I shut generator down. Several minutes later restarted all was fine again..   Seems to happen after genny has been running awhile.. Any ideas? This happened several times over the weekend..