Doug Rinckes' book covers the electrical systems of the R25, R26 and R27 singles, as well as the R50-69S twins. It includes a great deal of information and procedures, and is heavily illustrated. Full color wiring diagrams are included, as well as specifications and common modifications. It's available from Bench Mark Works. It's softcover, wire bound, has 78 pages and 49 illustrations. Highly recommended!

From the Clymer Maintenance Manual Series. A very complete and easy to use manual covering maintenance, troubleshooting, complete disassembly and reassembly. Not as detailed as BMW's official Reparaturanleitung, but working on these old mounts is not exactly rocket science.

The Barrington Motor Works BMW R26-R27 Motorcycle Restoration and Service Manual a Guide for the BMW R26 and R27 Owner/Restorer covers the 1956-60 BMW R26 and 1960-66 BMW R27 machines with significant portions of the manual applicable to the earlier BMW R25, R25/2 and R25/3.  The manual consists of more than 524 pages including many pages of data, more than 600 photographs, more than 60 original drawings and 6 double-sided laminated assembly guide “hotsheets” for use in the workshop.

http://barringtonmotorworkspublications.com/

The Barrington Motor Works BMW R50-R69US Motorcycle Restoration and Service Manual a Guide for the BMW R50-69US owner/restorer covers the 1955-69 BMW R50, R50/2, R50S, R50US, R60, R60/2, R60US,R69, R69S and R69US machines in depth. This manual consists of 632 pages including many pages of data, more than 625 photographs, more than 70 original drawings and 9 double-sided laminated assembly guide “hotsheets” for use in the workshop.

http://barringtonmotorworkspublications.com/

 

The Barrington Motor Works BMW R51/3-68 Motorcycle Restoration and Service Manual a Guide for the BMW R51/3-68 Owner/Restorer covers the 1951-1956 BMW R51/3, R67, R67/2, R67/3 and R68 machines in depth. In addition, comparison information is also provided for the single year 1950 BMW R51/2.  This manual consists of 546 pages including many pages of data, more than 625 photographs, more than 70 original drawings and 5 double-sided laminated assembly guide “hotsheets” for use in the workshop.

http://barringtonmotorworkspublications.com/

Engines 1955-69 Part 1, 107 minutes

Engines 1955-69 Part 2, 61 minutes

Transmission Rebuild /2, /5, /6, /7, 120 minutes

Wheels, 63 minutes

Engine Video Part 1 covers engine removal and lower end servicing (timing gears, crankshaft slingers, clutch, etc.). Part 2 covers cylinders and cylinder heads (valves, springs, rings, etc.). Disassembly, reassembly and common faults of the 4-speed (/2, /5) and 5-speed (/6, /7) transmissions are covered in the Transmission video. The Wheel video covers mounting/dismounting tires, lacing and truing rims, aligning the rim to the hub, and making special tools. Does not cover wheel bearings. All these video are available from Cycle Works at http://www.cycleworks.net

Workshop Manual (reprint) in French, English, Spanish and German.

Workshop Manual (reprint) in French, English, Spanish and German.

Workshop Manual (reprint) in French, English, Spanish and German. Very thorough, but not particularly easy to work with.

Workshop Manual (reprint) in German only.

These reprints cover /2 and R27 technical modifications and recommendations made by the factory as these bikes were improved. Available from ??