The BSA Workshop => Twins => Topic started by: tdc on 27 Jul, 2026, 10:36
Title: 1967 Hornet rotor .
Post by: tdc on 27 Jul, 2026, 10:36
Why does the crankshaft rotor Pt No. 54215824 have 3 equidistant holes on the back for the drive plate, marked R.S. and M . If they are for alternative timing how would it benefit as a deviation from standard ?