i had the exact same problem. but i did more then one thing so im not sure witch of the following worked
first i took everything carb related out. carbs , cable, thumb throttle, kept my bike "apart" front fenders and gas tank off.
my needles were bent soo that could be one problem.
i took my carbs apart top to bottom everything apart. all the jets pilote, main, air jet , float bowls, floats, float valve and seat, choke, mixture screw,needle/main nozzle...etc . i cleanded everything and scrubed the slide and slide way with a nylon scrub pad..
i rinced everything in boiling hot water, good trick if yur in a house. the water just evaporates..
i rebuild both my carbs with kits everything was included: needles, jets,mixture screw,float vales and seats, gaskets. put everything back together ajusted my floats to 20-21mm
i made sure my cable wasnt snaging under my tank so i lightly zip-tied it in the middle of the tank to the middle frame tub, also made sure it wasnt twisted up or kinked.
i had a moose thumb throttle and i put back my stocker. i had a feeling it didnt help.. i put on my carbs sync. them, and made sur they matched up to the carb windows at WOT.
i put the tank back on and made sure of clearance to the cable.
started her up and she asn't sticked again soo far "knock on wood"
hope this helps sorry for the long chapter