Got a 2006 Sportsman 700 and the 4wd kicks in harshly when you get on the gas in 2wd. It will stay in 2wd fine if putting around but if the tires spin over or if you get on it hard it will kick in. This is all done with switch in 2wd position. If in Awd position it stays in fine and doesn't kick out. Pretty good with a wrench but new to a Polaris and have never broken down the front end of one of these so any help would be great. Thanks!