The simple answer is yes. It will clean passages you simply cannot reach.
That being said, a lot of people don’t have access to one and will do it themselves. If you are organized, careful and meticulous, you will get good results.
Make sure all passages are clear and do not use anything to clean jets or orafaces that will scratch/gouge them. If you are careful and organized (don’t mix parts up between carbs), you will be fine. Good luck.
So, I bought the bike needing to clean the carbs....well not knowing at first. Just got done cleaning them myself and this bike is a rocket ship now. To be honest I was afraid the bike was a dud. But new plugs, fuel lines, fuel filter, air filter and the bike really moves. Thanks for the encoragemnet to do it my self. Pretty easy when your all done