Not 100% on this but it probably wouldn't work right. With cars it mattered weather the car was 4,6,or 8 cyl for an electric tach. Maybe these work differently but not that I am aware of. ( seems if it runs off one of the coils then it should fire the same number of times per cycle weather it is a single cyl. or 2 or even 3 or 4 but if it uses the wasted spark method then it would matter)

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