I'm hoping someone can help me with this problem. I have a 2003 Sportsman and it has an electrical problem I can't figure out. When I turn the key, the speedo will light up normally for about 10-20 seconds and then die out. I can still start with the key and the headlights work but no speedo. Turn it off and on right away and it stays blank. Leave it for half an hour and it will light up for 10-20 seconds again and then die out. The battery is good and new starter solenoid installed. I check for a short but nothing. Anyone with any ideas?