Oil leak at the outer side of the cylinder-head

[lakoslegal]

Hello Everybody! Because of a false valve-stem seal I had to disassemble the front cylinder-head, and send it to a service-men to replace the head. After re-installing the head, I went to the petrol-station and realized that the left side of the engine is covered with full of oil. I thought it was the head-cover seal. Next day I washed the engine, and screw the 4 bolts on the top of the front cylinder-head cover, but realized that from the small hole on the left side of the front cylinder-head oil comes out. What can it bee? any bodí has some idea?

[MickeyMoto]

I think the hole is the water drain for the spark plug recess. It could be the cover gasket.

Do you use Motul oil, I think it is red.

[DaveH]

It's the round seal on the spark plug hole onto the head... Lift the cam cover & reseat... Simple