83 coil pack

[tufftom4]

I finally got to work on the 83 that followed me home and found I have no spark to the back 2 cylinders I tried new plug caps but that did not work so my ? is do I have to split the fairing to get to the coil pack.

[KISA]

Not necessarily. It is enough to remove fastening of the accumulator. Then to check coil resistance. On primary and secondary windings. And as resistance of pick up coil.

[Marcarl]

To replace the coils you'll need to take off the faring, but there are other things that might be your problem so check them first.

Could be the ignition wires are shot, not inserted properly or the TCI might not be giving the right signals.

Ignition wires can be changed,, all done form the front,, but you'll need small hands and a good dose of patience, remove the front ones, then do the back ones and then finish the front ones,, can be done.

If the wires check out, the the TCI might be the culprit, and it's located under the battery box. You could try just cleaning the terminals and that might just do it, or you might have to remove the TCI, open it to check it's condition and if it's just wet, dry it and try it, but if it's corroded it will need to be replaced and then can be relocated to on top of the air box.

[dna9656]

I have a known good 83.5 TCI and coils....