Airbox hole...

Hi everyone, yesterday during some works on my '06 GRiSO 1100, i noticed an hole on the bottom of the airbox, just next the rear footpeg.

There's a hose clamp with a residual rubber tube or plug, i don't understand.


the hole is this:
[You must be registered and logged in to see this image.]

on service manual i cant found anything.

What i've to place here? i dont think leaving it disconnected is a good thing.

Thank you!

It's a drain, should be a drain pipe connected & with plug at bottom to drain excess oil/water. Agree as a min it should be blocked...better to have drain line

Yup, that is one if the two airbox drains. In the book it's called the 'Water Drain, but I think you would have to be riding in a flood of biblical proportions for water of any quantity to get into the airbox. There is another drain at the front of the box on the bottom and it too should have a hose on it and both hoses should run down in front of the swingarm and be secured in a looped wire clip just inboard of the right hand footrest hanger plate. It is also important that they both be plugged as they drain from the 'Clean' side of the airbox and if unplugged or, as is so often the case, they have fractured along their length due to the crappy quality of the OE hose, then dirty, dusty air will be drawn up into the airbox where it will contaminate the throttlebodies leading to serious damage. The 50mm throttlebodies on the 1200's are particularly fragile in this respect so these hoses are particularly vital to maintain in good condition on these models.

Hi pete, thank you, temporarily i closed it, soon i will make a T-joint to connect it with the other drain tube.