If the unit is new, isn't there a warranty? Have you tried calling Kohler to see what they recommend?

Let's face it . . . regardless of this unit being brandy
new, or 20 years old, Kohler is going to rape this person.
He/She is screwed, blued, and tatooed. And no, I'm not
a pessimist. That's the way all business operates these
days.

My first problem was solved my me. Had a short in the wiring. Fixed that. Today the generator will not start at all. It is not getting propane to the carburetor. The solenoid probably is not opening. I have not connected Kohler yet. Lots of problems with this setup.
Here is a picture of the solenoid.

http://i12.photobucket.com/albums/a212/lanceh5/ScreenShot2012-10-20at41036PM.png

I wouldn't complain about it until I called the manufacturer. If you have a warranty I would imagine they will make it right. If you installed it yourself, it should be no problelm for you to follow the troubleshooting procedure they will most likely walk you through over the phone. When in doubt, call tech support.

Kohler will not give technical support if you are not one of their installers such a pain in the but. I am having the same problem