I loaned my neighbor my 2004 Yamaha xlt800 yesterday and his wife flipped it. Shortly afterwards the ski would not turn off when pressing the shut off switch or lannard. He had to disconnect the battery to get it to shut off. We took the starter switch (in the handle)off to clean it and then disconnected it completly and reconnected the battery. As soon as we did that the ski started without the starter switch being plugged in. Any advise would be appreciated.