Help with Weber Carb not returning to idle Options

[Tastyplacement]

Oh man, I am up a creek. I am installing the Tangerine cable system and one carb is fine, but after I installed the pulley, one carb is binding and will ALMOST return to idle, but it is binding on something. The carbs are rebuilt but I did not replace throttle shaft bearings. The carb works fine throughout it's range of motion except for the last 10 degrees where it should return to idle. If you let it snap shut, it shuts, but if you ease off, it sticks.

I have had this freaking carb and cable system apart and back together 5 times and don't know where to look. Carbs are Made in Spain 40 IDF

[stugray]

When you rebuilt the carbs did you take the butterflies out completely?

If so you need to be VERY careful when you put the butterflies back into the shaft.
You need to put them in and install the screws loose.
Then you need to let the butterflies close and aligned them PERFECTLY with the bores.
Any misalignment will make them stick just before fully closed.
I let them "slap" closed a few times and look for light around the butterflies.

Then when you go to tighten the screws I use a block of wood to put up inside the throat to take the load off the shaft as I tighten the screws.

If you removed the screws without this backup block, you may have bent the shaft(s).
I did the first time I removed a set of butterflies.

Replacing the shafts is a PITA because I had to drill new holes for the accel pump cam. This requires a special tool from Weber to get it right.