Ignitor will be drived by the crankshaft, and gives therefore one impulse per revolution. The engine, four strokes, will work in "double ignition". Circular buttonholes will be make to tune ignition timing. Timer and condenser will be from Fiat 500 ;-)

Ignitor's body and hub

Circular buttonholes permit us to tune ignition timing.

Driving

We can see at the crankshaft ending the bored hole with at his bottom the thread that we let us to pick movement for our ignitor. The torque direction tight the screw, perfect ! An Oldham's coupler have been planned between the drive shaft from the crankshaft and the ignitor shaft to corrects the misalignement.

Ignitor mounting

In the hub will be planned a Spy gasket for the sealing with the crankcase.