Vacuum Leak?

[McC_65_91]

Here is the issue. Its my 2005 YZF 600R street bike, its carbureted (4 carbs, 4 cyl). When the thing has warmed up when i give it just a tiny bit of throttle, like as little as I can twist the throttle it shoots straight up to about 5000 RPM, idles about 1200. Makes it very difficult to start from a stop.

Starts up pretty good and idles relatively well so I am not 100% sure its a vacuum leak. Once in gear runs good as I am never really below 4 or 5K.

I have read a decent amount on vacuum carb leaks tonight trying to get an idea on what is going on; sound like this could be the issue but not really sure. I get the trouble shooting procedure for vacuum leaks with carb cleaner or ether. gonna try tomorrow night when I have time. Heres a pic, not related at all but for those of you who like pics.

What are your guys thoughts? Thanks in advance.