My 2005 500 sportsman is having some electrical problems. Sometimes when I go to start it there is no power speedo doesn't light up or anything. It is like the battery is unhooked. Try it in a couple of hours and it will start right up . It has done this about 5 times now. Could it be the box up front under the top head light. The bike had the recall done on it.

 

take the battery cables of check batter co of the selenoid and check the nuts under neath for tightness, seen them loose check battery connections also

 

so does it not even crank over when it does this or just no speedo lights? if nothing then check battery connections as well as other connections.

 

yeah it won't even crank. I checked the batt and soleoind they all seen good. I also checked the fuseable link it seems ok.

 

could it be that sure power modular box under the top head light???

 

Maybe a bad connection in the RED kill switch(Middle/side left/slide right)

I had no power to my quad and the switch needed cleaning.
If I remember correctly there was no power anywhere when this acted up on me.......Caper...........

 

I actually had this same problem on my motorcycle... it turned out to be the factory connection for the headlight relay, I realized this AFTER I had replaced a couple hundred dollars worth of good stuff.... I have also had (somewhat) dirty connections in the kill switch too... I would check EVERY connection and switch until you figure it out.