Here is where I am now.
Since it quit charging.
I have tried 3 different stators. 1 new and 2 used, but known to be good.
3 different regulator rectifiers (2- 6 wire type and one five wire)
2 different small batteries, one stock type.
Changed ignition switch twice.
I am getting over 20 volts a/c voltage out of the regulator at idle. (no matter which rec/reg including the one that was on bike when it quit charging. Total of four rec/regultors.)
DC voltage is 12.6 before startup. Lower voltage above idle (DC)
Checked, rechecked all ground connections and continuity of all wires. not one single wire is the same as when I started having trouble (hot or ground).
I have 2 redundant grounds both from engine to chassis and from engine to battery. ( engine to frame twice and engine to battery twice)
I have tried grounding rec/reg case and not.
Right now the wiring is (6 wire)
3 yellows from stator to rec/reg.
red from rec/reg to positive batt,
green from rec/reg to batt -
black wire capped.
From batt+ to ignition switch, ig switch to coil and pamco
The ONLY componant that I have not replaced is the flywheel itsself. I have cleaned the inside of it to make sure there is no rust. (today) the magnets inside of it seem to have equal and strong pull. I also dont really suspect the flywheel considering it was charging, and did for many many miles, and suddenly quit charging, like a componant failure.
I don' think magnets would suddenly go bad.
Like I say, it runs fine at an idle. give it the gas, DC voltage goes down to well below 12.
Bike runs like crap above idle.
I really dont think I have tried used and new parts, (and too many of them) that test to be good, that it is bad parts or battery.
All that is hooked up is the charging system and pamco ignition.
I did check for end play at crank. all ok there.
The oddest thing is in the middle of all this, (seemed to be a bad battery) it charged again for a few miles. It ran fine. (That battery that had just been put in)
Then the system quit charging.
That battery load tested fine. It still does.
It limped me home without the headlight on.
I am at a loss.
Ready to change everything back to the "unreliable" stock charging system.
Bad flywheel?????