Hi all - looking for some information on the tube that's attached to the airbox for fuel drain from the tank.

My bike didn't come with the tube at all, so I'm trying to replace with a generic one. The same 3/8 id as the fuel line from the petcock seemed to fit fine, but was difficult to route the tube as fuel lines are not very flexible.

In short:
1. What length and i/d is the fuel drain tube from the bottom of the airbox?
2. Is this of the typical fuel line material (thick and steel braided)?
2. Can someone please help describe the proper routing of the tube?

#6 on the airbox diagram of parts manual (17235-KV3-950)
http://workshop.nsr-world.com/11kv3rj5/2F11kv3rj5/I1Frame.html