Hi guys,
both my dad and i have 660 Teneres. mine is a 2013 model and my dad has a 2008 one.
The 2008 bike seems to be pushing out a considerable amount of oil through the clear breather pipe that comes off the bottom of the air box.
I'm sure the engine crank case breather feeds into the air box?
This tells me that there is an increase in crank case pressure and is therefore pushing the oil through and down this pipe.

on my 2013 model tenere i have no oil whatsoever coming out of this pipe.
What do you think?
Thanks in advance