Oil from hole under SAS?

Just washed the bike and when I started her up I noticed after a few mins some oil coming from this hole. Any ideas why this should be?

Gin Reaper has just informed me it's a spark plug drain hole so mystery solved!

The mystery of the oil isn't solved yet though…. …. hopefully it just crud washed out by your over enthusiastic pressure washing

Think it means you have failed spark plug tube o-rings and oil pooling around top of spark plug.

Yep usually a pinched/faulty/perished spark plug seal, easy fix though.