Generac 55g reduced voltage

[MICowboy]

I am losing power with my Generac 55g BUT the generator is not shutting down. It seems to be worse when it is hot outside. It will run for 15-20 minutes and then my voltage drops to ~5 volts. To get it back up to 120V again it has to either cool down (I shut down the engine and restart) or let it sit running for a few minutes and turn off/back on the 20/30 amp breakers CB1 & 2 a few times. Since I am reading voltage of ~5volts I seem to think it is not the CB1 or 2 causing me fits. I have read about CB3 which is suppose to reset itself within 2 minutes but an automatic reset has not happened yet. We are leaving for vaca in two weeks and my wife does not want to travel in a hot motorhome. Any ideas out there??! It is in a 2002 Dolphin and I assume it is original and has roughly 750 hours on it.

I have to believe someone has had a similar problem in the past.

Thanks!

-MICowboy

[Ramblin]

I am having a similar problem with my Generac 55G in my 2002 Dolphin. I didn't measure the voltage, but my EMS does not detect any voltage. Hopefully someone knows the solution and will chime in soon.