Hey there! I'm having some trouble with the 4wd system on my 2002 Sportsman 500HO. When I'm in 4wd the right front tire doesn't do anything. It makes a clicking noise when I push the machine in neutral with it shut off. I jacked it up and ran it in 2wd and the right front tire spun slowly while the left one stayed still like it should have. When I put the machine in 4wd the left front worked fine but then the right front stood still like it does when I'm out in the woods. Is the right front maybe in between being engaged and disengaged? Could it be in the 4wd button? Or do I have some broken parts inside? I do not recall ever putting it in 4wd with the rear tires spinning. I read the warning label. But, maybe it slipped my mind once. Any help would be appreciated. Thanks.

 

Check the hub fluid before you panic.

 

The electric wires that go to the Polaris front hubs are notoriously fragile. You may have a broken wire.
BTW, the oil that goes in the hubs isn't anything special, it's the same oil that goes in your Polaris 4 stroke motor. (0W-40 synthetic motor oil).