Ed,
Quote:

I didn't take the carbs off,just removed the bowls.



Some other thoughts:
Ensure you reinstalled the bowls on the correct carb. The left bowl has the recessed drain plug. I don't think you can incorrectly reinstall the bowls but it's worth a quick check.

Left side doesn't want to run above idle? Could be a in-tandem issue. Ensure throttle is indeed operating both carbs. Look at the linkage on the carb side when rolling the throttle. Make sure nothing is interfering with the tandem linkage.

Way out in left field, check your fuses. Some members have had an oxidation issue. Pull each one and look at the contacts.

Although this would effect both carbs, trace the two wires coming from your alternator cover. One is the wiring from the alternator to the main harness. Doubt it would be this one. The other is the wiring from the pick-up coil to the main harness.
Ensure you ignitor is plugged in all the way.
It is a lot of tinny finger work, but unplug then plug back together the Throttle position sensor's plug, the triangular plug located back side of carbs. Nothing above idle.

I don't think you do but if you have the Air injection stuff, make sure it's working.

Whatever you do, Please let us know what the trouble was/is when you find out!

PS: The carb's diaphrams. Sounds like these were left untouched by your re-jet job. However, when you inspected these did you swap these out with each other? Sometimes it is hard to notice a flaw.

Blowing gravel off rural roads