Background: Bought an 03 wr450 for 1000$. I have about 450$ into it on top of that. It doesnt run very well right now. I replaced all o-rings, and diaphragms in the carb. Did the o-ring mod. Both dealers near me didnt have a 48 pilot so I went with a 45, and a 165 main. It had a 150 main, and a 50 pilot stock. I bought a works connection adjustable fuel needle. This thing is ready to ride besides it not running right. Questions: I live in Ohio. I figure my elevation is around 1000ft here. The dealer should have a 48 pilot in on Friday. But I rode the bike up and down the street got it warmed up and started ripping on it. It will idle and die out I have played around with the fuel screw with no luck. Should I try to adjust the AP squirt? I have not touched it and wanted to leave it where I knew it would proably run. I have a quickshot on the way, got it on ebay for 35 shipped. I can hear some valve noise at high RPM. I wanted to get it running and then do a valve adjustment, one less thing to have rule out. I am going to adjust them tonight after it cools down. I need some help. I know that the carb is clean, and I have a feeling a valve adjustment will help but I feel like something else is up. Should I put the 50 pilot back in? Is there some other off the wall thing that would cause this? Gas is good, flushed the tank out 3 times, no sediment in the bowl of the carb.