i have a 78 fxe. It has two spark plugs on each cylender and it has two coils. the coils each have a plug for the front cyl and one for the back cyl.

The back cylender is not getting any spark. At first i thought that the coil was shot, but then what are the chances of both coils breaking and not sending power just to the rear cylinder?

Now i seem to think that it might be the module, but i really have no idea where to start.

Did anyone have the same problem??

 

What ign mod are you running ? Sounds like dual fire Are the wires at the coils tight to the connections ?

 

What did you do to verify no spark at the rear? being you have a redundant setup, with a meter you should be able to check one to the other, step by step to find the bad boy. Good luck.

 

running the "singel fire M/C power arc ignitions"

I took out a plug and touched it to the head and cranked it.. no spark in either back, but both fronts sparked.

yes, all the wires are tight


i am thinking that a module wire is loose, or the module just craped out. It was installed in 93, so it can be just that it needs to be replaced.