Yup, acm is right on the ball there. Had a couple of Clymer books over the years. Slightly different approach to Haynes but a bit less technical if I remember right.
https://dspace.dial.pipex.com/merlinbooks/hanc.htm#Honda
https://www.primediabooks.com/Products.asp?GRPID=44
The links above are for Honda manuals from Clymer, but they only seem to do 1972 to 1978 on the CB350. Best option seems to be to bribe a Honda garage mechanic for a few photocopies of his Honda book now and again. You could try dropping a post in the buy and sell category of this forum too, someone may have more info. Good luck!