I just bought a 1977 Puch Newport, and it's been great. So far, the parts I've bought were a couple of Carburetor gaskets, a stock fuel shut off valve, fuel line and filter, and a perfomance exhaust. There aren't any places I know of in South Dakota that sell moped parts. I bought all my parts from www.themopedjunkyard.com They have a huge selection of parts for most mopeds (mainly Puch and Tomos) From what I hear Tomos makes an excellent moped, too. Where in South Dakota are you?