Hey Skool, motorcycle carb question

[phatdaddy]

I'm working on a 1975 Honda 100 that has not been cranked in 30 years. The carb is really gummed up and I can't get the throttle barrel free in the carb. Do you know any slick tricks for freeing it up. I didn't want to soak it in carb cleaner until i get it all apart and remove the o rings and gaskets. Parts guy said to soak it in "deep creep", but i have never used it before. Any thoughts, thanks.