Ignition timing - K2F magneto (A7/A10)
Ignition timing - MO1 magneto (B31 / B33)
A10/A7/A50/A65 Sludge trap fitting instructions
Setting crankshaft endfloat
Don't mix up A10 gears with A7 Longstroke gears!
A10 swinging arm silentbloc bush removal and replacement
BSA A7 & A10 cam and tappet data
BSA engine and frame numbering system and reference. Courtesy of Britbike.com www.britbike.com/technical/bsa_serial_numbers.html