2010 Polaris Scrambler 500 HO AWD Problems

[eranr28]

hi everyone. i own a polaris scrambler 500 h.o 2010.

while driving with 2wd all fine but when riding about 65 kmh the right wheel gets locked like the 4wd gets in action.

is it common? how can it be fixed? 

[Mech]

Have you checked the wheel bearings ?

You could have a seizing wheel bearing, or, it could have play in it allowing the 4wd hub to engage somehow.. 

I'd jack it up and grab the wheel top and bottom and try to rock it in and out from the bike top and bottom.. That's push the wheel in at the top while pulling at the bottom, then pull at the top and push at the bottom. Then rotate it while putting twisting load on the bearing using the same sort of technique and see if it feels rough, then give it a fast spin and listen for any rough noises.