From what I can work out in my head, a 4cyl dizzy would spin at half the speed of the crank... right?
From what I can work out in my head, a 4cyl dizzy would spin at half the speed of the crank... right?
that is correct
4 strokes (2 revolutions of the crank) and one rotation of the cam which is matched for one rotation of the dizzy
Cheers mate