I have a 04 yz450 that i picked up a year or so ago. It was having some severe bogging when accelerating which is the exact same thing my yfz was doi g right before it seized. I decided to tear it down and had the shop put a new top end with 13:1 comp piston and new bottom with crank berrings and some new shift forks. I just got the bike put back together and am still having severe bogging when accelerating. I am at roughly 4500' with 95 degree temperature and I have tried rejetting with 155, 158, 160, 162, and 165 main jets. I have also tried 38, 40, and 42 pilot jets. Still having the same issue. I bought an external air/fuel screw and have tried everthing from 1 - 2.5 with no luck. The bike has a pro circut pipe on it so i checked for leaks by pluggi g the pipe with a rag to create backpressure and it doesnt seem to be leaking. I read on one of the forums that removing the tps can help but no luck there either. When i had the engine apart i had them check my valves and they seats looked prety good and all the clearances were in spec. I am really out of ideas and not sure where else to go. I built this while bike in hopes to be ready for this weekend but all the shops are slammed. Does anyone have any advice or thoughts of what could be wrong? This is not just a mild bog but severe enough that it will kill the engine under throttle. Any suggestions are appreciated! Thanks in advance!