Guys, I am new to the world of ATVs. I am looking to buy used and seeing as this will be my first I don't want to break the bank. It will be used for light trail riding and plowing snow in the driveway. What should I be looking for in regards to engine size? Brand/ model? Fuel injected/ carb? Whats high mileage for an ATV? I'd like to keep it around $4k, is this a reasonable budget? Thanks for the help.