Amal main jets.


Well Known and Active Forum User
VOC Member
Any one know what a B in front of the main jet number means ,I have one that is an 190 and has B in front of it B190.


John Emanuel

Active Forum User
Non-VOC Member
20 years ago, I bought two 190 main jets, one marked 190 the other B190. They were very different in size. I spoke to the supplier who said that the B stood for Binks who were taken over by Amal around 1930.