For your consideration, a genuine vintage Clymer service manual for 1970-1978 Honda 4 stroke singles.  Models covered shown on the back cover.  Features "exclusive full color wiring diagrams" and "HOP-UP SECRETS FROM TOP TUNERS".  Bitchin' to the max.

This is used, genuine vintage manual.  It is USED, it will have some creases, grease fingerprints, and likely some writing inside.  But it has a good strong binding, and is the actual manual you see in the photos.

FREE shipping to the USA and I'm happy to ship internationally at cost.  Thanks for looking!