Anyone have this happen before?. 2005 MXZ 800 X package. Started it up and rode around the yard a little this afternoon and when I went to shut it off, hit the kill switch and nothing! Just kept running. Finally got it to shut down by messaging the kill switch. Never did that before, and when I started it up again to see if it was a fluke, same thing! Do you think I have a major problem or just have to take the assembly apart and work the contact?