Bought my wife a 2008 VN 900 Custom and twice now the throttle has stuck and the last time was in a turn from a stop. She had to lay it down. I called several Kawasaki dealers in southern Oregon and no one seems to know what the problem is. Can't just be this one. Dual cables seem very smooth and the return spring seems strong. Valve body bad? Or could it be the throttle body actuator? Any help would greatly be appreciated.