A note to those in the future who may wire through the bars
In a less than a full daylight situation, the black red clutch lever switch wire is painfully close in appearance to the red black high beam wire, and they both are in that same wire bundle from the left bar down to the worm nest in the headlight bucket. If everything but the high beam works...
Tip number 2 - it is close to impossible to correctly reassemble the guts of the dimmer switch without a very lucky guess, or perhaps extensive experience with micro switches. We're talking two springs, a tiny ball bearing, and a little copper contact. I dropped the roughly 1/32nd in diameter ball bearing twice on the concrete floor, and found it twice. It was only through the grace of God that I pieced it back together so it works. There's no logical reason from looking at the switch why the ball bearing would be placed in the spot it's in, but it does and it works, and I ain't going back in there for love nor money.
I suppose the moral of the story is, there's nothing to know from pulling apart this switch that a multi meter couldn't tell you from the outside. I was tired and desperate to figure out my wiring biff, and so pulled the switch apart.