I realize this 4 wheeler is now ancient but that does not take away form the fact that it is a great 4 wheeler. I am looking to sale it right now because I have not rode it in about 2 or 3 years. One problem I have with it is that only one wheel is driving the ATV. So instead of a 2wd recon I've got a 1wd 4 wheeler. What could be the reason for it doing this? thanks in advance!