Ok so i dove into my 81 special charging issue. Followed gggGarys tech thread, It's putting out 12.4v at idle but will not increase with rpm's. Did the slap test seemed very weak, grounded the green wire still no increase in volts. Checked the brushes inner brush was fine outer was short I replaced it with one from an old stator i have Brown wire volts is 10.6 battery is at 11.8 key on bike not running, red wire is 11.5v. I'm getting 10.6AC at white wires. slipper rings are ohm out at .003 .004. Also should i have continuity from the + brush to any ground point on the bike. I could not locate the yellow safety relay wire. stator ohms out 3.8. not sure where to go from here.