This bike was my father's back in 83, I removed the lense and it isn't an after thought because it has a groove so the lense won't spin in the hole, this is one of those unicorn top clamps I have read about, but I also noticed that all the idiot lights like neutral, high beam, oil pressure, and turn signal are all in the faces of the gauges. Not sure if the early units are like that or not, have yet to see a cb750 around my parts especially a running one.