Need help with dyna S dp400 hd2 I think
my back cylinder is not firing I have checked the wiring and according to the wiring diagram it is wired correctly I think although I am not sure if I have the plug wires in the correct order but I dont see where that has anything to do with it as they all 4 fire at same time all the time.

front head gets hot but back head pritty much stays cold
it not the lack of spark to plug and its not lack of spark from plug
But it does seam like it is sparking at wrong time.