Airbox drain hose missing

[glib]

I started to install my carbs after painting them and discovered the airbox drain hose was missing (1983 GS1100E). This would be a vacuum leak if not replaced so is it acceptable to make one using fuel hose and some type of fuel proof foam air filter material? If so, what material would be used? It's only a $13 part but it is now holding up my project.

[tom203]

I keep meaning to inspect one of these airbox drain hoses, but I'm easily distracted. I suspect it might be a one way gizmo valve- a plastic ball inside a tube. Under the slight vacuum of airbox, the ball gets sucked up against a stop .to prevent a air leak. When no vacuum, engine off, the ball drops/floats and any accumulating liquid can flow out the hose.
for now, just plug it up and get your project moving.

[Guest]

I keep meaning to inspect one of these airbox drain hoses, but I'm easily distracted. I suspect it might be a one way gizmo valve- a plastic ball inside a tube. Under the slight vacuum of airbox, the ball gets sucked up against a stop .to prevent a air leak. When no vacuum, engine off, the ball drops/floats and any accumulating liquid can flow out the hose.
for now, just plug it up and get your project moving.

I bought a new OEM tube, it has a removable plug in it. Guess they figure out the old open tube type with a thick piece of foam in it wasn't that good.

[glib]

Thank you gentlemen. I think I'll use some fuel hose and plug it if that's all that's really needed.

[chuck hahn]

Thin walled vinyl tubing run from box down somewhere between swing arm and engine..plastic plug in the end. drain condensaton from time to time.