I have a Mariner 5, made in japan, with S/N 661L321401. I've checked the Swedish website http://www.marinshopen.se/guide/mp/mar8.htm and its close to a 1979 (661-311876 - 661-317095). That year makes since because it came on a 1979 sailboat. But, the S/N does not quite match up. One, mine has...
