As I sat in the garage tonight installing my nEW Mikuni HSR carbs, I read the tuning manual that came with them and there is a ton of great info. So I will share that too.
For quick and accurate analysis when fine tuning your carbs, I recommend using "witness" marks on the throttle grip and throttle housing. Use masking tape on the grip and an indicator mark on the throttle housing. Mark the tape in 1/4 throttle increments from fully closed to wide open throttle. This enables you to accurately identify the throttle opening and adjust the proper tuning components.