I have a early 90's CC-XL over here and it is only putting out one leg of 120volt when running on the generator. I have checked the 2 circuit breakers on the gen itself and they are both good. I have also opened up all the electrical acess panels and have exposed some large relays that I believe to be the transfer switches. I have been checking terminals on these relays with a multi-meter but am getting nothing off either.

Although I have no way of checking the shore power the owner assures me that both legs are on line when shore power is supplied.