Bogging issue

Hey guys. I have a 2011 pro rmk 800. I'm having a bogging issue I'll explain as best I can. I start the sled and let it get to temp before riding. When I go play around and give it some throttle lets say wide open. The sled will rev to 6000 and do about 30-35 mph and that's all. Then if I burp the throttle. (On off on off on off) it will l of a sudden gain full power and pull very hard. The second I let off the throttle a little bit it starts bogging again. Then again I have to play with the throttle on off on off to get it to run right. Also if I hold it at one spot on the throttle you can hear the sled sounding funny like a miss or going back n fourth from one to two cylinders. Did compression test got 112 on both with throttle closed

Just bought the sled. Brought it to Polaris and they said there's nothing wrong with it. Got it back and went for a ride still the same issue.