Installed my Gonzo #2 (of 4) into the '82 Heritage Special today.
Did this to minimize independent variables in this experiment, as the #2 GN box was the item that ran perfectly in my '83, just like the OEM TCI.
[The '82 had been running superbly on the OEM TCI.]
Ran the engine longer than I did in my previous test.
It seemed to smooth out a bit over time, but the stumbling/popping did not disappear.
Took it out for a short ride. Accelerated OK, but would cut out briefly at about 2.5K and pop.
Back in the garage, took this video.
Interestingly, in the session that was captured, it happened to run most poorly; the performance of the Gonzo on this '82 has been uneven, but always problematic.
You'll notice the timing jumping about.
Impressions of what might be going on are quite welcome.
I've got a six pack of cold Yuengling ready for the dude who figures this out.
Its in the upper 80's here in Central New York, and I'm on my 3rd.
Note: I did the "timing tweak" on this bike, ie, retarded the timing about 2 degrees.