81 xs400 no spark

Beau_

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Indianapolis, in
I here's the story.

I was riding last Saturday and the bolt that holds my coils to the mounts came off, leading to my coil dropping on the valve cover.

Everything was running fine until my exhaust stud broke and I lost my exhaust.

Then my coil started arching really bad off of the valve cover and when I stopped the bike died and wouldn't restart.

No spark.

Got it home, check for loose connections. Tested voltage.

I have voltage at both coils and three of the wires going into the tci box. But around .30 to .50 voltages going to the cam cover.

Did I fry my tci box?

Thanks in advance.
 
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