The M20 is a historic motorcycle, renowned for its rugged construction and reliability, particularly during its extensive service in military applications. Produced from 1937 to 1955, this pre-unit construction motorcycle features a 348cc, air-cooled, four-stroke, single-cylinder OHV engine, typically producing...
BSA Series 90 Stationary engine Maintenance and Owners Manual.
Very useful BSA Owners manual the manual covers operation and maintenance.
Good for engines up to 1961.
10 pages.
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