What bike? XB9/12R/S has the adjuster on the left front side in front of the air intake. Turn it CCW as you are facing it. Snap the throttle shut until it "binds" when you try to turn it open. At this point, the throttle blade is completely closed. Using your software / scan tool, reset the TPS and adjust your idle to 5.3 - 5.7 and a speed of 1000-ish rpm.