Sleepy, you did not tell us what the problem is.. No doubt you have it all figured out what is going on, but re-read your post and then tell us what is going on.
I did drop the 4k Onan from my motorhome. The problem was a loose positive feed to the starter. I used a motorcycle jack to hold it as I removed the bolts holding it up there.
The hardest part for me was the generator output wires that fed out to a junction box and needed to be put back in. Took both of us, and some dish soap to get the wires in and out of the 1/2 inch flexible conduit.
So.. it run's fine once it is started... but what is the problem?
And nice to see a post from you Sleepy.. it's been years since I have seen one from you.