[SportsmanJeff500]

Hey guys I got a sportsman 500 1997, The 4wd only works in 4 low, but I tried enganging 4wd in 4 lo and go into 4 hi and it seemed to work, but shortly after there was a screeching / loud hum coming from the front of quad.

I was wondering if it could be a radiator fan? (If they even have one).

So any ideas on either of the two problems would be great thanks guys! :question:

 

[crhall]

I'll try to help you out some, I think those years they used a magnetic hub for the AWD engagement. Between the mag and shims inside, there could be some issue's in the hub. search hub disassembly and tear yours apart. see what you got