18-08-2019, 01:27 PM
Educated guess would be that the change point is the same as the engine change to the coil ignition type.
This would suggest 1928 as the earliest for the coil type crankcase.
The Sports models might have lagged behind to use old stock magneto engines though.
This would suggest 1928 as the earliest for the coil type crankcase.
The Sports models might have lagged behind to use old stock magneto engines though.