81CB 650 carb and choke problems

[nashbuilder]

I will try and make this quick and clear:
Bike sat for about 4 years, has not been running properly for 8+ years. I have taken the carbs off and cleaned them well without dismantling them. I pulled all the jets out, pilot screws and anything that was possible to remove I took it out and cleaned it. I did do a rebuild kit. Multiple people saw them off the bike and said they looked clean and in pretty good shape. I have installed them and now the trouble begins.

With choke on (closed) the bike starts up and idles at 1500RPM for about 5 minutes then it slowly starts to rev getting up to 3000. At this point I have slowly pushed the choke in to open it up. As I do this the idle comes back down. Once it is open all the way the bike dies. I tried restarting it with the choke off (open) and the bike started no problem but instantly revved to 7000RPM which I then turned the key off to keep from red lining. I adjusted the pilot screws in to make it a little more lean thinking maybe there mixture was to rich.

What the heck is going on?

 

[psychotinner]

Maybe check the free play in your throttle cables, and check the routing making sure they aren't in a bind. I would crank the idle adjustment screw out at least a turn if the cables aren't too tight.

 

[facefirst35]

Is the throttle cable lubed? I know it sounds like a basic thing but maybe the throttle cable isn't returning all the way because it is binding in the sleeve.