Does your throttle stick ratchet/click when you move it? I wonder if your ratchet came out or was just in a clip inside. Since you're in the heli forum, I'm assuming you bought the heli version, which should not ratchet, the throttle movement should be smooth. So, I'm wondering if the ratchet was secured inside in case you wanted it later for airplane use and it just came out of whatever little clip they had it store in.