Steins,F.N. Oldtimer motorcycles:
Here are the picture from the conversion to a good working clutch, it is given me by 2 enthousiasts Dutch mens owners of a M 70.
clutch plates you needed only 2 plates easy to find on jumbles.
When we rebuild the clutch i've made a specail tool to compress the springs of the FN M 70 clutch
Now we start to rebuild : always an inside plate/Horex/inside plate/Horex/
inside and to give the presure one or two outside plate like you needed to run.
Enjoy you're now good working clutch.