I figured it was some plug to tap a hole of sorts. The passenger side carb had a tiny residual of fuel too. On the driver side... it was visibly dripping when I had the engine running...
Damn... I guess I shouldn't get too mad since I can't remember the last time I had an issue with my Speedster... she's been good to me...
I'll reach out to @VSpyder and see what we can do. I have <2500 miles on them. Manufacture defect? This would be the second time I've had a problem with these carbs. Maybe Greg has a better route/plan.
Thanks @WOLFGANG