www.clymer.com 1-800-262-1954 http The Puch 250 SGS (Schwing-Gabel-Sport) was a motorcycle manufactured by the Austrian Steyr Daimler Puch AG in Thondorf near Graz. The motocycle was powered by two-stroke engine with one cylinder and two pistons called Twingle engine and was first introduced to the public on October 1, 1953. Since then 38584 Puch 250 SGS were manufactured until production came to an end in 1970. en.wikipedia.org Johann Puch first produced bicycles in 1889 in a small workshop …