This is a 4 page set of repair, service and tune-up data for 1972 and earlier Sachs K-50, K-80-S, K-80-GS and K-103 49 cc, 50 cc, 73 cc and 80 cc single cylinder motorcycle engines used in DKW, Dalesman, Hercules, Monark, Rupp, Penton, Sachs, Saracen, Speedway, Sprite and Tyran motorcycles and minibikes. It contains general specifications, maintenance procedures, tune-up specs, service procedures, exploded views of most major components like carburetors, engines, manual transmissions, clutches, oil injection system and information on how to maintain and repair the various components on each motorcycle or minibike. There are very detailed and clear illustrations that show lots of detail to make servicing the motorcycle or mini bike much easier. This repair data has just about everything you need to do repairs on these motorcycles. Much of this info is not available anywhere else. This repair guide is not a photocopy, it is the original pages that were printed in 1972. Shipping and insurance is free in the US. Please see the photos for samples of what the manual looks like. The photos are for a different make of motorcycle but they are from the same repair manual set and look just like the one being auctioned.