gy6 vacuume lines

[Beefcake]

There is a vacuum line on the intake manifold and the valve cover. Are these two supposed to connect? Also there is one on the carburetor but I'm guessing thats for the over flow in the carburetor. I can tell the buggy idles better when I cover the one on the intake manifold but I have no idea where it goes. When I had it going to the valve cover it ran like crap.

[metalstudman1]

The hose on the valve cover is a breather- Just plug the one on the intake.

[BuggyMaster]

The one on the intake is used for two things on most GY6 engines: It goes to a T that branches one way to your vaccuum operated petcock fuel valve on the fuel tank and the other goes to the CVT diaphram on the left side of the carb behind the throttle lever when lookin at the machine from the back.