I was out riding yesterday and this all seemed to start just at once. I was riding some dirt roads and was ripping up an uphill section spinning on the dirt then I went to shift to 4th and got back on the throttle a little soon before letting the clutch back out and it jerked forward and took off again when I let the clutch out. About 500ft later after throwing it sideways around a turn a slight squeaking sound started. I stopped a little further up to check it out. I assumed it was something in my front end. I limped it back home, the squeaking sound getting a little louder on the way home and not quite constant. I found it to be coming from the rear of the quad, so I took the pads off the rear rotor thinking it could be them. Nope. Then I tightened my chain figuring maybe it was rubbing something. Still not it. I did notice the adjustment bolts were a little harder to turn then normal. Took it out and now its a terribly loud screeching duck call constant sound. I'm thinking maybe it could be the carrier?