Engine looked mostly assembled but in fact there were still a lot of parts to install. Like oil system pipes.
And then was time for more interesting work. Honda CBX750 valves are larger than CB750 Seven Fifty valves but both engines equipped with the same hydraulic tappets. And these tappets need to be checked and cleaned. The procedure itself is simple: you just put hydraulic tappet in can with clean kerosene and pump it until no sign of mud left. You also must check that tappet work is smooth and after it’s free play after procedure it is in a service limit. The only minor obstacle is that you need special bleeder for that.
But, as I found out, it might be replaced by 1.8mm drill bit. You have to insert blunt end into the hole in the top of hydraulic tappet and then, without any force applying, feel the deepening inside of tappet and put the end into it. After that hydraulic tappet could be pumped with bare hand.
So it was time to put all cylinder head’ insides back on their places and to align camshafts. Sounds easy if don’t mention large quantity of parts. Here is so called exploded view of parts I had to assemble and install: