Breather/Drain tubes

[Andy Davies]

So, there are three breather/drain tubes down the left hand side of the bike. I know that one drains the perimeter of the fuel neck. What are the other two for? I ask because when the bike was on a stand having a new front tyre today, a pool of clean light oil (spoonful) dripped onto the floor, I assume because of the 'unusual attidude' of the bike when on the stand.

Anyone know?

Cheers

Andy

 

[harry]

I'm guessing
1 fuel filler neck
2 air filter box
3 battery vent

 

[WindyChuffer]

One is for the fuel filler neck to drain any water collected around the fuel tank lid.

One is the fuel tank breather - to allow air to get in as the fuel is sucked out.

No idea what the third is for.

 

[Marty Hill]

We have a 3rd tube for the charcoal cannister which is a US only thing. Wonder if it's just easier for bmw to have them on all bikes or are the cannisters coming to the rest of the world?