The usual applies...ultrasonic, sodablast...all new consumables, stainless hardware and careful setup.
These are certainly not the most visibly attractive carbs I've seen...but sound, clean innards in conjunction with careful setup assure they will be fine runners. Rest assured they ARE clean where it really counts.
As usual, all stock jetting innards, bench synched, pilot screws set to 2 1/4 turn....perfect for stock exhaust/airbox equipped EX.
Interested fellow members please contact me if interested in doing a "trade-in"...further reducing your cost!