Collection, Preservation and Display of Old Lawn Mowers
I bought this with a truck load of motorbike bits, so it may well have come off a moped, but you never know.
I've just had a look on the 'net and found out that these magnetos were used on 'add on' Cycle type powered engines.
Wild guess, JAP
Thanks for your reply wristpin, the interesting thing for me was the clockwise or anti clockwise setting possibility of the engine rotation, I imagine it was if you mounted the engine on the front or back wheel, sorry if this one was not mower orientated folks.