i have a 2011 sportsman 800 efi. i've had it for a couple of months now. i went riding this weekend and didnt realize how deep a stream was until it was too late and the water was almost up to the seat in the back. but the front was still up out of the water a lil. it turned off, after i got it out the machine was slipping for about the first 5-10mins afterwards but then seemed to work fine. until later i got stuck in some mud becuase it wouldnt go into AWD. went back and forth a lil until the AWD engaged and got myself out of the mud. after i got back and went to move the quad i noticed that when i start to give it a little gas, it starts hopping and theres a knocking noise that seems like its coming from the front of the machine down by the axles. after i go more then like 1MPH it stops. but now everytime i try to move the quad, and just hit the throttle lightly it still starts jumping and i hear the clicking noise until i go faster. Any advise or should i just bring it back to the dealer?