Reply To: Hyosung GT 650 i: No / stuttering acceleration Jul 27, 2021 at 9:16 PM #6026 Peadar👤 Member Topics: 6Replies: 7 This sounds awfully like one of the throttle cables has snapped. Check both bodies are moving when you twist the throttle. It would throw a F1 fault. If it’s cable it likely won’t rev above 4000 in neutral.