[Steve83]

With the engine cold, pull the air cleaner, start it, and watch the linkages as it warms up. See if anything is moving, especially the choke.

 

[Steve83]

If you only disconnected 1 wire, then you didn't disconnect the choke. That's just the electric ASSIST for the choke. The choke is the top butterfly in the carb throat; its linkage runs down one side to a cam with steps & a screw, and there's another rod running up to the round plastic housing with the bimetallic coil & heater inside.

 

[Steve83]

You don't have to disconnect it - just WATCH it.

 

[Steve83]

You're saying the idle climbs, but nothing on the carb moves? If you don't feel like you can diagnose it, then taking it to someone who can is your only choice.