I have a rzr with 750 mi. and about 58 hrs this averages out to about 15 mph. This rzr is driven by my wife and not abused. The dealer said the rod snapped in an unusual location. I bought this rzr used have learned this is the second time the motor has let go. The warrenty company "polaris" is giving me greif and may not cover the 4200.00 new motor. Anyone else having motor issue's ?