surely you can add an extra cylinder with stroke cycle 180 degrees out of sync with the first, and add another coil onto the magneto just the same, and BAM you got a two cylinder. now if you wanna get tricky tricky. i will presume with no prior knowledge, just instinct, that if three cylinders are 120 degrees out of sync on the crankshaft(120 deg difference in stroke cycle) then you should be able to mount the coils just the same, and same goes for 4cyl 90 degrees 5cyl 6cyl until you run out of physical room on the magneto. also a thing to think about when cylinders are not having 180 degree diffs in their stroke cyle is that the balance during operation can become a huge problem but whatever you got bigger fish to fry. please tell me what you decide to experiment with
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