2003 Mercury 9.9 4 stroke idles and dies with throttle

[COYOTE54]

My kicker runs and starts at an idle, but dies as soon as you try to put any throttle to it. Unless the choke is on. Then it will accellerate a bit but then start running poorly because the choke is on. I assume I have an issue with a high speed jet??? Carb has been apart twice. 120 PSI air has been blown through all of the passages, shouldnt there be a small pinhole somewhere on both of the jets that extend to the bottom of the bowl? I only have one with a pinhole, the other has a brass plug with an oring?? Whats behind the brass plug. To me it looks like tarnished brass (black/greyish) but I cant get anything out of it.

Thanks,
Tim