Go to www.honda600coupe.com , go to the links page, and scroll to the bottom. There I have put a few links to (translated!) Japanese Honda 360 and 600 sites. The translations are often bad, but still fun. It is good to see that there is a base of folks there that keep, maintain and even race their old Hondas.
Treasure hunt: Ten points to the listmember that can browse from one of these links to a good source of NOS parts, and an email address of a supplier that is ready to sell at reasonable prices and ship to the USA!
Steve