Cb500t vacuum hose hookup?

[semaj4712]

Excuse me as I am a bit new to motorcycles, i have syncing and tuning carbs on cars for years but am really stuck on this...

I cannot figure out where to hook up my vacuum lines for my vacuum gauge when trying to sync my carbs on a 75 cb500t...

Here is a picture of the carb so hopefully someone can point me in the correct direction

 

[Sonreir]

This screw here will come out and you can thread in a nipple. Some of the threads are non-standard sizing, so be aware you may need to order a special part if you can't otherwise get an air-tight seal.

 

[Sonreir]

This screw here will come out and you can thread in a nipple. Some of the threads are non-standard sizing, so be aware you may need to order a special part if you can't otherwise get an air-tight seal.

 

[semaj4712]

Ahh, ok, I thought that might be it, but yea different gauge than my vacuum setup, may need an adapter of some sorts