To let you know what's the difference between them.

CJ750 M1M / M1S 12V elecctric diagram.

CJ750 M1 6V elecctric diagram. Can also reference for: BMW R71, Russian M72, URAL, K750, DNEPR and etc...

CJ750 Electronic Ignition System Install Guide.

How to install the new clutch disc and plates.

How to connect the general switch wires.

How to change the distributor drive gear.

Reduce the correct timing.

Reduce the distributor.

How to install.