I have noticed that the both ignition systems on the J.A.P engines use the wipac series 161 it still says on the flywheel use an 018 contact braker gap but other readings say the magestren version should be 012" gap.
That's interesting Ishi... My understanding was that a shorter duration spark
was integral to the design (and points' gaps would be smaller to achieve this.)
The
'Tarpen' drive is interesting to us as our Scott Bonnar were distributors
of their hedge cutters in this country.
Thanks for the great photo.-------------------------------------
Jack
