It's "Honda Motorcycles" by Graham Forsdyke and it dates from 1967! It's a book like the one by John Thorpe, i'm sure and this book covers all models from 1960. Limited to the print date of this book, of course.
So, which models does the book cover, I hear you ask! Well, it's the Honda C100, C102, C110, C114, S65, CM90, C200, C90, C92, CB92, C95, CD150, CB160, C72, CB72, C77, CB77 and the Honda CB450. And guess what, it also includes a general guide to tuning and increasing performance for racing in chapter 22!