CB750K1-K2 '71-'72 SOHC KeiHin 7A
All of the CB750 SOHC carbs made from '69-'76 look similar, but they are VERY diverse. You have to pay close attention to the specific version to correctly rebuild and the bike they are currently installed. Even the motors can be swapped, so this can even include the '77-'78 years. They are found to be interchanged and very mixed-up so just replicating current parts installed, is a recipe for disaster.
This set is the KeiHin 7A and is the first years to have the common pull throttle brackets. They look like later '73-'76 versions, but use larger main jets and still used brass floats. Also '71-'74 will come with the idle adjust on the left side so it clears the fuel petcock on the right side of the tank.
Keep in mind that from '71-'76 you can physically change bodies and throttle risers in almost any combination. It is rather rare to find the '71-'76 carbs to be 100% correct. The main differences to consider is what side of your tank the petcock is on so your carbs have access to the idle adjust that will be on the opposite side as the petcock, and always build the carb body to the id number as called for on that body.
