HELP!! High idle

I just rebuilt the top end on my '99 400. It appears that the person I bought it from didn't have it timed correctly. (or now I don't) I followed the procedure to YZ time it and now it idles very high and rough. I checked for any binding and tryed adjusting the airscrew. When I give it throttle, it revs perfectly.

I'm trying to ride tommorow, suggestions would be greatly appreciated. I'm mechanically inclined, just new to the 4 strokes.



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