I've even added a light spring to mine in the past. I got myself a couple long mild springs and connected one end of each to the screw that holds the jet/lever in place, then stretched it up to kinda where the cable retainer is, and that gave it just enough tension that it returned each jet all the way up when the choke lever was released...
Thats not the correct way to fix a sticking jet nozzle, but it works until it can be done the right way...
As much as gas cost now, a sticking choke nozzle will cost you big time, quick like, using all that extra fuel.