Nope. Leaking worse than ever. I'm thinking "WTF?" And also, at that point, the Stella was also my only option, so I kind've needed it running reasonably reliably. So after much messing about, looking for leaks, etc., I finally realized the issue. The new needle was smaller than the old one. Like, significantly.
So I put the old one back in and that, along with being diligent about turning off the tap when the bike was off, got me rolling again.
Fast forward to this past weekend. I was ordering parts, so I threw some replacement needles in the cart. One for the Stella, one for the P200 motor, since it'll probably go sooner than later, and a spare because Why Not? I specifically checked that the fit was for 24/24 carbs, and what should arrive today but...more little tiny float needles.
So what form of dumbness am I falling prey to that I've now bought the wrong float needles twice?
old on the left, new on the right.