Rear cylinder not firing

[Keith S]

Hi everyone -

I need some help trouble shooting an issue.

'04' Chopper DT
S&S 107
Crane Hi-4 ignition (8-4100)
Wire Plus EHC elimination harness (one of the first ones)

The rear cylinder is not firing. I checked the coil and am getting 3.5 Ohms on both sides. I switch plugs and put front to back / back to front and it won't fire, but did backfire.

Consensus is bad coil, but I wanted to check other possibilities before I started throwing parts at it.

Any ideas are appreciated.

Keith

 

[blacktopper]

Did you check to see if you had spark to the rear cylinder

 

[Keith S]

HHmmmm...it is now. I took the coil completely off to make sure I ordered the right one. I put it back on to check the spark and it ran perfectly. I did not see any corrosion or loose wires, but I am guessing that was it.

 

[blacktopper]

The Skogdog had a spark plug wire work partway out of the coil one time and it did that