Fit the rotor and retaining bolt. Finger tight is enough, as you will be moving the rotor to set the timing

Now is a good time to run the Boyer trigger wires. To make life easier, solder the ends of the trigger wires to the old points wire and pull them through the hole in the crankcase. This is much quicker than taking the outer cover off...

The stator plate should fit snugly into the points plate recess

Fasten the stator plate with the two retaining screws - just set it to the middle of the long mounting holes for now.

I found the Boyer stator was 0.5mm too large to fit into the points plate recess. If you have the same problem, draw a reference mark around the plate and file away the excess