This is the official Honda 400/450 Service manual. It covers the Honda 400cc-450cc Twins build in 1965-1987.
When you own an older motorcycle, you probably are doing your own repairs or/and maintenance. If you do this, you will definitely need this official Honda 400 service manual/Honda 450 service manual.
These manuals cover more than 600 pages of detailed instructions on how to do repairs to your motorcycle. There are many high quality illustrations that will cover the instructions.
This is exactly the same manual you can buy at your local dealer. However, service manuals for older motorcycles are sometimes hard to find. This Honda 400 450 manual comes in digital pdf format. Download it to your computer and download the pages you need.