I used my Harmonizer to adjust the idle air/fuel screw on the bottom of the carb and also verified the tachometer reading. It's a neat tach but is slow to respond so you see a little difference.
The stock (blue marks which were off a little before adjusting) setting on the screw seemed to be just right after I set it.

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Yesterday I removed the tank and got some slack n the wire going to the ignition switch so I could mount it right side up in the place where the air pump was mounted.

Got a ride in between rain showers with the 35 tooth rear sprocket and she went up my steep gravel drive just fine in first gear. I'm gonna break her in slow so no top speed runs yet but first gear is now useful.

Also made a plate to block the hole where the air injection tube was.

She seems nice and solid with very little vibration.