Tri-z leaking oil from hose

[Just-Tri-It]

My friend's Z is leaking some oil from the hose right above the stator on top of the motor at the bottom of the cylinder. I thought that hose was used for vent the casing below the cylinder? Any ideas on the cause of the leak?
Thanks

[zzmegad]

i just looked at some cases I have, and yeah its a trans vent.. So yeah to much oil? or maybe it was upside down and a little left in the hose? What if there was a leak between the crank case and the trans? Could that force oil out the vent, or would that suck oil in?

[MTS]

If its over full it will spit it out at High RPM's...it is the trans vent.

[just ben]

it will also puke if there is moisture in the cases

[Just-Tri-It]

OK. Thanks. He said it doesn't leak while it's running or revving but after he shut it off. He came back and found a small puddle under the bike.