That screw has a jet in it for lubing the center of the transmission gears. I forget the exact name of it but I think it's called a block throttle port or similar. It's under engine oil pressure so might need a new seal under the head of the bolt . Likely a copper or aluminum crush washer of sorts. Can't determine the other leak source from the pic. The odd time it might seep from the cam cap area of the gasket and creep along the joint to the back but that's about it. Rest of gasket by design is pretty rock solid against leaking. Got a better pic of the leak there? Is it clean and dry everywhere else on that cover, on the breather tube side?Thanks 😊
is this for picture two then? You anything about picture one? But there is no oil on the cylinder. Checked a video on youtube. Everything else is dry. And i dont think there should be oil behind the screw on cylinder head?