I have some extra sets of carbs with different numbers. Is there any difference between the two. One set is marked064A the other ones are 657B any help will be appreciated.
I am new to the site, been riding for over 45 years. My current ride is a 74 750. have had this bike since 1984 I also have a BSA A65 in a trackmaster frame that I have owned since new. Couple of projects in the works,XS 650 and a KZ750