Here's my '75 CB750F. Bought it in running condition a couple of weeks ago. So far I have just replaced the tires and tubes (which were from 1990), flasher relay, and all of the bulbs in the instrument cluster. I have brake pads and new steel braided lines for the front brake on the way.
It runs pretty great once it is up to operating temperature, and the existing brakes do an okay job at stopping it, although the front squeaks something awful. It's a fun bike to ride, and makes my 2018 Triumph feel like a rocketship lol. I keep trying to shift into a sixth gear that the CB doesn't have.