They made the CB750 for 35 years with many different types of carbs. I had a 1971 or 72 for a while and you could perform a standard sync of the carbs. There we

They made the CB750 for 35 years with many different types of carbs. I had a 1971 or 72 for a while and you could perform a standard sync of the carbs. There were screws on the shaft or something like that.