Reply To: [How to Tutorial] Change Vacuum Lines on Hyosung GT125R GT250R & GT Comet (Air Hose Diagram) Aug 11, 2020 at 5:36 PM #4769 theJakester42👤 Member Topics: 0Replies: 1 What is the other hole on the tank? The one that Tank #1 has a hose attached to? I’m not sure that hose is supposed to be like that.