Had a problem with Speedometer on 2000 sportsman 500. Speedometer quit working along with awd not working. low beam headlights burned out, (not sure if this is connected to speedometer issue). Tried replacing the Tip 48 regulator inside speedometer to no avail. Bought new speedometer and installed it. Also purchased two led lights for replacing low beam lamps. Everything seemed to work fine until about 3 minutes later when the speedometer went black and the led lamps burned out. A few minutes later the speedometer started working again but no low beam lights. I have checked voltage to lamps and am getting 14 volts when engine running and accelerated slightly.12 volts not running, I have no idea why lights are burning out. If anyone has any idea on this issue, I would appreciate any info. I don’t want to purchase any more lamps and have them do the same thing at 20.00 a lamp. I am afraid I will blow another speedometer and can’t afford to at 300.00 each.