I ride a 1981 495MC in the Twinshock Motocross Championships so I sent the Bing 54/40/107 carburetor to a carburetor specialist to have it serviced before the race season starts. Unfortunately the courier company lost the carburetor. Does anyone know where I can get a replacement Bing 54/40/107? Any help would be very much appreciated.

Hello,
I Will have a look next we in my spare parts if  i  have one.

Thank you very much. That is very kind of you.