I have a Bing carb for sale that fits Puch mopeds.
I bought last year on EBay but as it turned out I didn't need it. Its very clean. The primer works freely.
# on the side is 85/12/101 A
Large B on the bottom of the casing. I believe I paid $25.00 plus shipping for it. If you want it for that its yours. Write me here or at my email address email@example.com