TE/TC 2014 Tc250 Runs Like Crap High Rpms

Hey hoping to find some info/help . I picked up a 2014 TC250 starts and runs good at low rpm. As soon as I try to go fast it bogs and pretty much runs like crap. Thought it was a jetting issue..... I bought the jd jet kit and followed the directions for altitude, can't remember what jet and needle setting but I'm pretty sure the jetting is correct. Any ideas?? Thanks in advance. Also I installed a spark arrestor and after installing I have alot of oil coming out the end of silencer

I always want to help...but armchair trouble shooting sux. proper jets installed correctly, clean carb, fresh fuel, OEM mix ratio, reeds intact, exhaust clear from end to end/not clogged, fresh spark plug, fresh piston /good compression, it is a 2014 how many hours on top end?, power valve clean and free, power valve spring properly installed, PV control arm clipped on on place, fuel tank venting properly, petcock not clogged up, ignition clean and operating with
out failures etc etc. You need to do the work to baseline the thing and eliminate all the probable causes.

remove the spark A and try it they can clog up quick