Yanmar L100 leaking oil

[Hazza6930]

Can someone please tell me where this oil may be leaking from and what I would need to fix it. Yanmar l100 diesel pressure washer engine

 

[john432]

It must be leaking from the bottom of the valve rocker housing. Probably a tired and cracked gasket. Take the 3 or 4 bolts out and have a look

 

[startinghandle]

Is engine breather blocked?
Is oil change overdue?
What is correct oil for engine?
Or as suggested new gasket

 

[335d]

Is it leaking from the decompression valve lever? seal gone or breather blocked?
better to clean it off with soapy water, then you’ll see better.