Oil leak , tank vent? (picture attached)

[Stihlyourface]

2005 RS Vector, 8k miles

I have oil leaking from this little valve and a lot of pressure behind it.
For example if I hold my finger over it and let off, it sprays out like crazy.
I already swapped the valve so I know thats not it. My hunch is engine blow by pushing back to tank?
Anyone seen this before?

 

[hibshman25]

That is the rollover valve that relieves pressure from the oil tank. Perfectly normal for oil to come out of the hose. If you loook closely at air box that hose attaches to what is essentially a catch can. The small hose on bottom of airbox drains the oil from catch can back into motor via the fitting on the stator cover.

 

[Stihlyourface]

Ah yes…. I see it now LOL.
I took the air of off to put a new battery in when I purchased the sled and I forgot to reconnect the bottom hose which caused a good oil leak.