So everything is send for repair and waiting the gaskets. The reason of the mess is a broken valve after bad clearance or didn't make it. Two of the valves are broken and makes the wholes in the piston. When the parts came back I will send photos of the progress.
Hi guys. The rebuild is still in progress. Today I took the head. The master made it like new, new valve seals, refreshed valves, cleaned and 0.1 mm head grinder. On Friday the bikes goes to the workshop. Next week wait for the first start after а big waiting. Кeep your fingers crossed everything to be good and to finished everything soon. New videos and pics soon.
Hi guys. The motorcycle is ready. It claimed a new cam chain, valve adjustment, fresh oil repsol racing full syntetic 10w50 , new coolant Hеpu green, new sparks. Now I can't hear the motor. It works so smooth and quiet. I will post video soon. Thanks to all for the help.