Reviving this thread. After receiving my bike back after an engine replacement, recently the throttle has been sticking. So far it has happened 4-5 times and the behavior has been consistent. The first ride in the morning, as soon as I shift into 3rd and then let off the throttle, the bike keeps accelerating. It freaked me out.. Is it the gear shifter?
Sounds like a crook potentiometer in the handle or a bad stepper motor at the throttle body, either way have your dealer pick it up and diagnose it properly.
Don't ride it to them, sticking throttle is a safety hazard, not only to you but for others….