Boom Vader / XPRO Vader hose came disconnected

[sinjinluke]

Hi I'm new to this forum and to bikes as a whole, but have been working on cars for a while now. I just bought a XPRO Vader 125CC (same thing as Boom Vader) and when I finished putting it together, I noticed a hose was disconnected. It appears to come off of the black case (assuming the transmission), so I figured it was a pressure relief hose. I ran it to the black box at the front of the bike (assuming its the airbox). The bikes runs and starts okay, but I wanted to make sure I had it connected correctly. The hose was hanging off to the left of the bike when I saw it. Thanks in advance!