BSA WD M20 Instruction Book 500cc Contract No. 5110
Engine and Frame Number WM20-5001 Onwards
A Reprinted Book A5 Format 48 pages
Controls, Lubrication, Periodical Maintenance, Running Adjustments, Clutch Adjustment, Front Forks (Girder), Gearbox, Lubrication Chart, Decarbonising, Piston and Rings, Carburetter, Electrical Equipment, General Maintenance and Running Hints, useful Data Table and more.