I just fitted a DYNA onto a shortened crank end of a CB77 race bike. In this instance I used a GSX250 Suzuki mechanical advancer to take the DYNA rotor, but that was because I didn't have quite enough clearance to fit a Billet rotor that I brought with me to fit.
Sparks are so much stronger than the usual weak points of teh old Suzuki system that I fitted in an earlier life.
Idea for a crank mounted electronic igntion
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