I recently acquired a 1977 Honda CB750K and have begun to restore it to a reliable running condition. I am so glad to find this website and am so estastic about the enthusiasm for these old bikes, I had a '82 back in '88 and loved it then. I had no idea then the difference between the DOHC and the SOHC, but am glad to know I can check the valves myself on the SOHC. Well I have parts shipping to me soon and am waiting to get it running smoother and stronger. I just got plates on the bike yesterday, it had not been registered since 1985 and not run period in the last 5 years until recently. It has 22k miles on it. Thanks for this site and look forward to any information I can get about this bike. Thanks!