I turned my attention back to the engine. Started out with the head that I already had cleaned and the valves lapped and installed a while back.
I cleaned, mic'ed, oiled and installed the shims and buckets. The PO had removed the cams when I got it so I have no idea what the valve clearances were. Plus, even though it didn't take much, after lapping the valves in I am sure I changed it a little. So I used my micrometer to get the shim sizes of the ones that were not marked to populate the DOHC Valve Shim Worksheet its base line measurements.
http://www.cb750c.com/publicdocs/DOHC_valve_worksheet.xls
I gave the mating surfaces a final wipe down, set the gasket in place and installed the head. Torqued in 3 stages to the final spec and then installed the front (exhaust) cam. Cleaning each piece to the point I was feeling a bit anal-retentive.
That's where I stopped for that night, went out the next morning rechecked all the timing marks and doubted myself on the front dot on the gear lining up to the top of the head, so I took it back apart and moved the chain one tooth down... WRONG, way too low. So I wound up putting it back where it was. Then finished it off installing the intake cam and the rest of the chain tensioners / guides.
I also got my new headlight retainer ring from
speedmotoco.com. Seems the PO had some sort of issue and even though the stock bucket was in nice shape. He had a Vetter black trim ring with the reflector wood screwed in, Duct-taped to the factory bucket. :-\
Had my doubts when I saw it was an Emgo aftermarket piece but not to worry, assembled fine and fitment to the factory bucketwas spot on!