In 1968/71 Johnson had a too "serious" style, (dark green with gold accents) that is not the correct look for a "kidding" engine as the Mate.
I love these little engines.
I own two ’70 Mate "European version" (all white), one complete and one bought as part motor without engine plastic cover and heavily damaged fuel tank…. I cannot resist to restore it to life so I have now both running… 😳