Hi Serb I realize that English may not be your native tongue and respect you for giving it a go. However it seems that you don't read or are ignoring most of the good advice that has been posted to you. (see Fabulous Phil's comments about valve lapping)
You have to be methodical. You cannot jump from one idea to another without a logical bridge.
Where to start? I guess I will start with my question about your engine?
What is wrong with it?
Simple short answer please.
Next, where you are, how you got there and where you would like to go.
You mention "This morning fixed valves rods, changed head gasket (made my self from aluminium)made a casket for a crankshaft breather cover and my Hans is back. "
I take this to mean that you have had the head off and had trouble refitting the valve push rods. When you had the head off did you check the valve guides and the valve condition. The video that I posted on a rebuild clearly shows how to assemble and reassemble the valve gear. If the valve guides are worn you will get blow by of gases into the rocker cover then down the push rod galleries which can pressurize you crankcase.
If you didn't check you have wasted the head removal. When you had the head off did you rotate the piston so it was at the bottom of the stroke and check the condition of the bore?
If you didn't check you have wasted the head removal.
Re
herec is the picture of fixing gasket ( used motorcycle one)
Are you honestly saying that you got a Suzuki motorcycle barrel to crankcase gasket, cut it into little pieces and superglued it to the crankcase breather housing? You expect this to be a good oil seal with all of those gaps and joints? Sorry. No way.

You last post shows a disassembled YS engine. I am guessing that is your spare.
Your original question was
Advised by many not to rebuild YSE8! Why? New engine doesn't fit. No one here advised you not to rebuild.
So I recommend that you rebuild the engine that you have in bits.
If you have bothered to watch the vid on the rebuild that I posted you will notice that the only (obvious) new parts were big end bearings and rings.
You can rebuild a Yanmar with bearings and seals from a normal supplier. Just take your old ones in a drop them on the counter.
You can make new gaskets (except an aluminuim head gasket) and a rebuild can be done for less than $500.
That is the glory of the YSE.
To rebuild, from Yanmar you will need a head gasket.
Rings.
Small end bearings. big end bearings.
And maybe valve guides. And gudgeon pin.
As I said all other parts can be got very cheaply.
Your home made aluminum head gasket will corrode quite fast and allow sea water to enter the barrel.
Buy a new head gasket and fit it.
When you have the head off to do that, check the valves and guides (as the vid shows) and check the bore.
I have already posted links to the parts list and the manual , but I have a feeling that you haven't downloaded them yet.
Gary