Not getting spark. Now what?

[Grimly]

Discovered the source of my woes, it's the wire leading from the pickup coil. It connects to a plug inside a rubber boot next to the negative side of the battery. I would nudge that boot and wire every time I took the side cover off. I nudge the wire, bike starts fine. Nudge it the other way, bike sputters and dies.

Glad I figured it out!

Tolja!
For future reference - you noticed a weak spark, and the GSs are pretty good at signposting a problem in the LT side of the ignition by producing a weak spark with an orangey tint.

[posplayr]

Tolja!
For future reference - you noticed a weak spark, and the GSs are pretty good at signposting a problem in the LT side of the ignition by producing a weak spark with an orangey tint.

A lot of things do that. However with good voltage and stock ignitor my acce 3 ohm coils are definitely lightening blue.

[Grimly]

The most common thing is a simple dirty connection, closely followed by a breaking wire, down to its last strand. Depending where, it's producing low trigger voltage or low feed voltage.
Either way, LT indications.