I have a lightly used Coleman Generator for sale.

6250 Max Watts
5000 Running Watts
Rated at 20.8 amps, but I've pulled 23 on it without tripping the circuit.
Model #PM0545005

10HP OHV Briggs & Stratton Motor

It's this one:

http://www.avidoutdoors.com/generator3.html

and here's the manual, in case you want to check specs:

http://www.powermate.com/pdfs/2007/1..._pm0545005.pdf

It was used 3 times for camping, 4 times to run a big house (including the well) in a power failure, and 2-3 times at the racetrack.

I put it on a cart for easy manuvering around the garage and in an out of the trailer. Not some cheezy cart, or "wheel kit" but a nice industrial one with 6" hard casters.

These retail for $599 - $999 depending on where you shop. I'll sell for $350 obo including the cart. Can deliver to the track, or you can come fetch it at my house. Bring your XR if you come get it at the house!