Have shop manual, all operating systems explanation, routine maintenance, servicing and repairs descriptions, installation and removal, parts blow ups, parts catalogue with illustrations, from Newage factory. Commonly mated to Lehman and Perkins engines but also others. DID YOU KNOW THERE IS A SIMPLE PROCEEDURE TO LOCK THE TRANS IN FWD GEAR IN CASE OF CLUTCH OR OTHER FAILURE FOR "GET HOME" USE. $20 including postage.