Hi Guys, just nipped over from new members forum, I have come on in the hope that you guys can help with a mega problem, my wife's NC35 has been stood for 3 years

and what i thought was sticking throttle cables turns out to be sized carbs. The bike is in "Hospital" and carbs will be taken off a I will take then to work (Engineering) and hope to free them..... (not right good at mechanic stuff, can make things tho !) anyone else had this problem?
IF the carbs are no good will a set from an nc30 fit?
Thanks in hope guys, she doesn't know i'm doing this, any of it !!
Cheers, Juan