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02' YZ426 full throttle issue

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Hey guys,

Long story short, my bike wouldnt start after season. So I took the time, first time I've done it (Our mechanic sadly passed away), and shimmed it. Had to replace 3 I believe out of the 5. Put it back together, still had problems, so I tore it apart (top end only) And re-did the timing, and that seemed to be the issue. However, I pulled out the pilot screw not even thinking and I didn't get the amount of turns it was out. So I put it back to 1.5 (I believe factory). It struggles to get up to full throttle. When I slowly open up, it will be fine. But when I open it fast, it completely bogs out within seconds. What should I do with the screw, lean it or richen It? All carb screws are tight, and my air filter is cleaned out. And obviously I have gas in the tank lol. Any help is appreciated, Im trying to get this thing up by next week!

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The pilot screw has nothing to so with your problem

You need to service the Accelerator pump system. The diaphragm is probably shot and the passages are probably partially clogged.

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