My 5 yr olds 170 started acting up this passed weekend, it’s never done this before but it now takes a while to get to speed.. seems to rev slower than it used too/

It’s bone stock besides a cage/ seats and bigger wheels/ Tires.

We have been going to the track a lot as he’s going to start racing this month, and this weekend I was riding with him quite a bit going over lines ect..

It will get to speed on flat stuff but any kind of incline or softer sand it’s a dog! Way more than usual. It has had all the governors removed since day 1.. also has a clean air filter.

Bad belt? Or? Any other suggestions.

Thanks in advance

Utah RZR Rentals