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So the stepper motor is to control the first start up on the cold engine to allow air into the throttle bodies until it is warmed up. I synced the carbs with the air screws closed until both cylinders had equal pressure. The picture that show the socket extension is on the idle screw. I adjusted the idle while it was warm to where the idle was the best. I then reset the tps sensor and adjusted the air screws in the throttle body holders for the best idle. I read about someone else doing this to their Ducati in this thread. Making the S2R 1000 run properly