I constantly have one of my front hubs engage when its not in 4 wheel drive. It has done it since day 1. Mobil 1 ATF in the hubs helped, but its a recurring problem. I can be riding along and one of the front wheels will engage and start to drag (if I let off the throttle), sometimes it is the left, sometimes it is the right - seems random. Hub fluid is changed about every other ride - seems to help but has not 100% cured it. For this reason, I now typically keep it in 4 wheel drive full time so I dont end up going over the handle bars or drifting off a trail etc. Never have issues with the switch in 4 wheel drive, but when I have it in 2 wheel drive, one of the front wheels will randomly engage.

 

i had a ball joint break at a 1000miles 6 months old,caused a nasty wreck, faught w/ polaris for 3 months,the hole time my atv was at the dealer,all summer... they declined to reapir.i did not hit anything ,did not jump it ever,most of the miles were road to the trails.. my insurance company totaled it. i bought it back for $800.00, bought 200.. in parts when i picked it up and had in driveing straight in 2 hrs .looks great,drives great,runs great,just paid off

 

Alright guys. I'll tell you why one of the wheels engages at higher speeds. It's actually your fault and you didn't even know it was happening. Its more likely to happen on scramblers because of the wheel and axle speed. When your atv leaves the ground and the AWD is engaged, this causes the front wheels to slam in to gear. Enough times of doing this and it twist the prop shaft out of index. When this happens it causes a vibration. You may not feel it, but it's there. The vibration causes an elctro magnetic current which will cause the hub to engage. I know it sounds crazy but its true. It kinda makes the shaft the north pole and the hub the south pole of a magnet (bad way of explaining) but you get the idea. A warped axle can also cause this but the prop shaft is most likely the case. So if you are off jumping around on your wheeler make sure she is in 2wd. To check the front drive shafts jack up the wheeler and put it in gear. Hold the front wheels still (leave in 2wd) and if the wheel wabbles then you've got an axle bent. The main reason It pulls is because the gear ratio on a Polaris front end is different from the rear in most cases. This can help in the mud but can make it pull when the wheels don't unlock. I'm sure this can happen on the new style AWD but you arn't likely to notice it because of the wheels engaging off of a single hub

 

Oh, and don't say you don't turn your awd on while jumping, it's easy to forget and everybody does mostly by accident

 

I've got an '05 700efi with about 500 'easy' mi. on it... It will lock itself in AWD on occasions and I usually have to back up and pull forward a few times to get it to disengage. This is with the AWD switch in the off position. It has not caused any problems other than worrying me because I don't know when it will do it.

 

you shouldent have to worry about any dangers, a few years ago the hubs were removed in favor of a central differential. if your AWD kicks in, both fronts will be turning no matter what.

 

This is not correct. One front wheel can be engaged while the other is not.

 

If this is true, it sounds like a design flaw to me......

 

Actually I think he is correct, in the Sportsmans atleast.

 

Ahhh that maybe correct for that sportsmans then, I am thinking of my scrambler when I have 4 wheel drive off, and the right front wheel turns but the left front does not. So they must have different 4 wheel drives between the sportsmans and the scramblers?