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Odyssey Models Odyssey Parts
Solo Engines Bing-Solo Carb Parts
Odyssey was a USA-only brand. 1976 to 1980 Odyssey mopeds were made in Germany by Solo Kleinmotoren GmbH, Sindelfingen 6. They were imported and sold in the US by The Odyssey Company, Mill Pond Center, Cos Cob CT 06807.
History 
Kleinmotoren means small motors. Solo made mostly agricultural motors, chain saws, sprayers, etc. Here is a English translation link to German Wikipedia de.wikipedia.org/wiki/Solo_Kleinmotoren, where they explain the name Solo.
“Solo” is from the revolutionary backpack portable sprayer for pesticides in 1951. It could be used independently by a single person for the first time, whereas in the past pesticide sprayers required a heavy stationary motor pump and several assistants to handle the long hose.
Here is a brief history of Solo from http://www.mopedarmy.com/wiki/Solo:
In a small workshop, the brothers Hans and Heinz Emmerich began the development of the first small two-stroke engine. At that time, the “lightest” industrial engines weighed as much as 35 pounds. On June 20, 1948, the same day as the Germany Currency Reform took place, the first KMS 30 (KMS = KleinMotoren Stuttgart) engine was born. Intended as a power source for portable machines, the KMS 30 weighed only 14.3 pounds yet produced 1.2 HP, which was an incredible feat for that time. From 1948 to 1971, Solo manufactured various pieces of agricultural equipment as well some scooters and other vehicles. In 1971 they introduced the Solo moped.
German Speed Versions: In Germany, there are three kinds of mopeds:
1. Mofas are 25 km/h (16 mph), no licence required, minimum age 15, no passengers.
“Mofa” is short for motorisertes fahrrad (motorized bicycle).
2. Mopeds are 40 km/h (26 mph), drivers license required (any class), minimum age 16.
3. Mokicks are kick-start mopeds with no pedals