I'm new to Polaris and having an automatic. I've rode my whole life but after buying the polaris 570 any noise I hear makes me nervous. It has 5 hours and 60 miles on it. When I am riding around the yard and in the field and let off the throttle sometimes I hear a grinding noise. Sounds like it is coming from the front. It only does it when it is slowing down by itself. Should I have it checked out or is it part of the breaking in.