Suzuki: suzuki rev probloms, vacuum hoses, precise descriptions

Question
hi when the choke backs off the revs drop to about 1500 then continually fluctuate between 1500 and 2000 revs. there’s a switch on the carbie with a couple of vacuum hoses coming off it when i removed the hose that runs back to the accelerator part of the carbie it seemed to temp fix the problem is there some way of testing that switch and what is it called and is there any thing else that could be causing the problem

Answer
What kind of suzuki?  What year? What engine?  Which switch on the carb?  There are more than one to the best of my knowledge.
You really need to get access to a factory manual, because without more technically precise descriptions, I have no way of determining which switch you're talking about.  If it's not a USA model, I have no way of getting access to information.
scotty