The flywheels are approx 10” in diameter, bore is around 1-1/2”, stroke is 3”..it’s a fair bit of weight to lug around now…Looking great, Its a fair bit bigger than I was expecting!
The switching arrangement for ignition is pretty basic, there’s a copper stud on the cam gear, and a mating rivet attached to a spring steel strip mounted behind the cam gear..their recommended ignition system is for a trembler coil system, given the low compression of the engine…cracking engine, are you going to run it off a buzz coil ?