I have a 500HO sportsman, had it for a few years now, it has 1,100 miles on it and I do take it to the shop for a complete check up every couple of years. Is it normal to always have to adjust the idle rpm on it? Start it up, it will run slow slow, adjust it, when it warm up I have to adjust it down to get it back around 1150 rpm, sometimes a few times each time I ride it. Also upon starting in cold weather the started will just run but not engage and turn over engine...??? Too cold, low voltage?? Any ideas?