BMW Service Repair Handbook
500-900cc Twins - 1955-1975
R50 R 60 R 60/6 R 75/5
R50/2 R 60/2 R 69 R 75/6
R 50 S R 60 US R 69 S R 90/6
R 50 US R 60/5 R 69 US R 90 S
R 50/5
Servicing, overhaul & repairs. Engine and transmition, cooling system, fuel and ignition, suspension and steering, braking, electrical system.
Cleary linked to hundred of photos and illustrations guide you trough each job.
Instant download https://www.youtube.com/watch?v=dm4XNaJezjQ&t=16s