I aquired a 1984 6Eo s 052910 4hp Mercury Mariner made in Japan. What is the difference between the American made and the Japanese version? Are the parts interchangeable? Thanks.Larry
Re: Whats the difference between the Japanese and American outboards?
Early Mariners were built by Yamaha. The Japanese versions were either Yamaha or Tohatsu motors with a Mariner name put on them.<br /><br />Only the later high horsepower Mariners were American made and used the same parts as Mercury.