The more you look at the 750A, the more it appears to be an almost custom hand made production bike. Pretty unique and very ahead of its time. Only Honda could pull something like that off.
That's much the way Honda made the CB750 sandcasts, too! Still today I get to see [what I call] 'special' parts from those bikes. The first year "A" is quite different from the later ones as well. Then, there's the early vs. late K8...and the early vs. late F1...and the 3 different engines of the K6...
I also just disassembled (for rebuild) a [very] customized CB500K0 that someone has fabbed a hydraulic clutch lifter into the left side cover. After I gather more pix I'll put it in a post. Last night I disassembled the clutch side of the engine, finding an 8-plate clutch and many missing shifter pieces, like the ratchet that ensures only 1 gear-at-a-stab can happen. I don't think the owner knows about this 'feature' (yet), so I have some documentation to do first. The whole engine is bathed in oil leaks from whoever took it apart for these mods: the gaskets are thinner than any I have ever seen before, making me suspect even they were handmade(?). The head gasket was so soaked that it just lifted off the cylinders, and it looked to have been a re-used one. The rest of the bike is very customized, too, but I only have a picture of it.
