Not sure what kind of "adjustments" you were making, but I know if remove the cables from the carbs, it's sometimes a bit frustrating when I need to put them back.
If you don't have it just right it'll appear to stick pretty hard. It always seems to take about 30 seconds to remove and 10 mins to get it set just right so the throttle snaps back nice and quick.
I have a feeling your problem wasn't as complex though......
