BSA WDM20 Restoration tips
Your contribution to this page is very welcome!
  
Spanner sizes New Ian Wright
66-4889 Oil tank support plate New Ray Schollick
Crankshaft specifications Ian Wright
Clutch problems Ian Wright
A little extra power Ian Wright
Engine clearances and fits BSA WM20 Ian Wright
Bearings Ian Wright
Threads: Engine, Gearbox & Primary drive Ian Wright
Gaskets Ian Wright
On the road - repair kit (pdf) Hans Muller
Electrical equipment  Steve / Henk
Cleaning Small Aluminum Parts of Oxidation Mike and Joe Rosson
Cables lengths Henk Joore
Wiring  Steve Madden
Ammeters  Steve Madden
Markings & painting Henk Joore
Tank C numbers Henk Joore
What colour Source: British Forces Motorcycles
Drive side bearings

Dave Plumb

Main bearing circlip and reference material

Mike Jeremy 

Bolt torque values

Big-end repair Dave Plumb
Crankshaft dismantling stand

Dave Plumb

How to rebuild a crankshaft

Dave Plumb

Schrader tyre valve caps

Henk Joore