84 cb650 boggs past 1/2 throttle, help!

[danmurphymn]

I got my bike a few months ago and at first it would only run on Choke.  So I took the carbs off and cleaned the jets.  Fixed, now it runs without choke, but it boggs down at 1/2 throttle or so.  So now I have new plugs, old ones looked to have run rich, new wires, air filter, cleaned the filter in the petcock and taken the carbs off again to clean them better.  I stripped them down as far as I could without taking them all apart on the rails so I wouldn't have to re-adjust everything.  I'm frustrated and lost, any ideas?  Thanks.

[Hondo]

Try running 1/2 of a can of Seafoam through your fuel system to REALLY clean it out.

[danmurphymn]

Does it sound like they are out of sync?  If they were out of sync wouldn't it run worse at idle?