2015 yz250f bogging

I have a 2015 yz250f , and I've had no problems with it until now , and it starts easy 2nd kick and then 1st kick after warmed up but when I ride it , It runs good for a bit and then it starts bogging when I get on the throttle hard, like when I'm in the air and I go to blip the throttle it just bogs , it has about 70 hours on it but we have done a compression check and it's good , we changed the spark plug cap and spark plug , we drained the gas put fresh 91 pump gas in, which is what I've always ran , and we looked at the fuel filter and it looks clean. We had the valves shimmed but all together it still does the same thing. Anybody have the same problem or a resolution? We're thinking about getting a new fuel pump