I'm not sure that it will be easy to find Honda 600 parts in Japan. As
far as I know only the Z360 and N360's were sold there. If parts were
easy to get there then why do I ocasionally sell parts to people in
Japan?
Some years ago I sold 2 brake master cylinders, 2 starters, 2 stators,
2 flywheels, 2 sets of brushes, a carb, and some other small
specifically Honda 600 parts to a buyer there.
Miles