I've got a d15b7 (N/A) as well, and had some mixed results when I adjusted my valves. I got the valve cover/gasket off, cleaned, etc.; stuck a socket/extension through the front/driver-side wheel well, rotated the crankshaft counter-clockwise to bring cyl. 1 to TDC, and adjusted the corresponding intake and exhaust valves.
The next step, accoring to my Haynes manual (a.k.a. shit-book filled with lies) was to use the aligning marks on the flywheel to bring cyl. 2 to TDC.

...?

I scoured the engine bay for several hours over 2 days looking for this mysterious piece of metal with no success. I can't imagine a valve-adjustment job requires the removal of the clutch...? I've tried Helms, Haynes, Honda, and Google so far. Where is the alignment-mark "window" into the flywheel?