I have a 2015 xp4 with 3800 miles. All stock. New clutches and belt 2 rides ago.

Last ride there was a strange noise that is real hard to explain when rpm’s are about 6000. I especially notice it if climbing a moderate hill where I have to really press the gas. 99% sure it is coming from the passenger rear side from engine.

Normal operational noise is a smooth purr as I accelerate. It does not sound like smooth acceleration if that makes any kind of sense. Def not a knocking or grinding noise and it will go away if not gassing it.

Not even sure where to start my diagnosis. Any advice is appreciated.

Utah RZR Rentals