its either goi8ng to be the sprrdo, or the sensor on the wheel like 2many said thats gone bad.

 

Hey guys I'm having the same problem with the top gauge not working at all, the over ride switch not being needed to go at a higher speed in reverse, the awd not working, and also my top headlight is not working. So does this sound like that this hall effect sensor is my problem as well my machine is a 2004 sportsman 400.

Thanks guys

 

i had that problem. it was a family of mice living in my headlight pod in the shop over the winter. but not everyones case. if your dial on ur speedo just dont work then its the left wheel sensor they always go. unless u have a cable speedo, i dont know the 2000's. if you have no electrical to the top of the bike it could be the kill switch. my dads 01 had that problem. they are the freakin ones with the kill switch as the start button. if you have that check the kill switch. also check it for crap too. there is so much stuff going on inside that little thing its so stupid. but yea electrical problems suck those are a few things to try other wise go nuts with a test light familiarise yourself and eliminate possibilities.