I own a 2014 Sportsman 550 touring and a 2014 Sportsman 850XP H.O. The other day I was moving my 850 and I accidentally stuck the key to the 550 in but it turned and started with no issues. I found that I am easily able to start it with the wrong key within a few seconds every time just by wiggling it while turning. However, the key to the 850 will not start the 550. I am curious if anybody has ever experienced anything like this.