I did check some bikes today to see what carbs they had... 1977- bikes 1-5 533A 1977- bike 6 aftermarket/ 1977 model 2 of the bikes was bought new/ 1978 they changed style of carbs / 1978- PB 37B I did change this carb once/ 1979- PB 37A this bike was bought new/ 1980- PB 37B/ 1981- PB 37B/...
1983- PB 16A / 1984- PB 12E / 1985- PB 12E these are the numbers that are on mine, since I didn't buy them new I am not sure if anyone has changed them over time, I have seen a 1985 with a PB 16A before, I wonder too what is correct.
Yeah started with a frame, used some parts that I had, this is how it turned out so far, missing headlight, speedo, chain guard and other parts, I will change shocks, seat etc..., still have lots of work to go.