Glad to hear the acc. pump did the trick.

If it idled at about the right speed before the rebuild, and now it won't idle except faster ... I would suspect the gaskets -- if you changed any gaskets. Probably worthwhile to take the top back off and double-check. Some gaskets look just the same, but the holes are slightly different. There is also that pesky ball bearing that goes below the pump. If you removed the slow jet, I think there is a ball bearing that goes in there too.

The cut-off solenoid should "click" when the ignition key is turned to ON and back off. You could listen for that.

I use a cheap tachometer, but also "listen" for the speed. Any where in the ballpark is OK (say 600-800 rpm will let you adjust the air/fuel mixture).

Also check the sight-glass, make sure the fuel level is at the halfway point on the glass.

On my list to do is put some pictures in the Carb tech section article ...