[Gnawrocki1]

Well, I started the troubleshooting by removing the fuel stop solenoid to give it a test. I think I read on some other posts that the start function on a 3 wire solenoids that during starting the safety (low oil, high temp, and fire extinguisher) were triggered the generator would start, but them immediately turn off.   This however was not correct, at least for my system.  The systems on this coach seem all as they were from the factory on everything I have checked so far, this was no exception.

As all of the connectors were crimped, I ended up cutting them out and putting Anderson powerpole connectors on all three leads so I could bench test.  It was very tight in there and the wiring was short and not crimped very well.  I could not get in there with a crimper, so I had to solder the connectors to the wires.  So now if I have to go back in there at some point in the future I can without having to cut off connectors.

I tested out the white (start +)  to black (ground) leads by connecting to a battery.  The solenoid was fine, so it went back in. It must not have been getting power during the start sequence.   All operations of the solenoid were very smooth and I did not add any lubricant, or clean it out because it felt so good.

The next test was the Fire Extinguisher circuit as recommended in my post by several Guru's as a likely issue.  I could barely reach the connector with one hand and was just able to unplug it.   I put an alligator clip between the contacts, and the generator sprung to life just as some of you mentioned.  Thanks for the hints!

I removed the fire extinguisher and it felt empty.  There was no continuity between the two leads coming out of the fire extinguisher.  Is there a place to get these refilled, or should the system just be updated?  I can only imagine there are better ones now on the market. The fire extinguisher that was in the coach has a last inspection of 1997 dated on it, so it is all original...... 

Thanks for all your replies, they were very helpful!