Norton Commando Owners Workshop Manual, No. 125 : 750, 850. Thru 68 - 77, Paperback by Clew, Jeff; Haynes, John Harold, ISBN 0856961256, ISBN-13 9780856961250, Brand New, Free shipping in the US

Inside this manual you will find routine maintenance, tune-up procedures, engine repair, cooling and heating, air conditioning, fuel and exhaust, emissions control, ignition, brakes, suspension and steering, electrical systems, and wiring diagrams.