http://wolfbrandscooters.com/about-us/
Maybe look for manuals for Gorilla Scooters, as it seems they changed names recently.
Sorry thats all I could find on a quick search.
There is a dealer locator on the website also, maybe they can get you the info you need. I'd have the numbers stamped into the engine ready when you talk with them.
Looks like a decent company man.