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Johnson seahorse 6hp (164cc) oil ratio plz.

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  • Johnson seahorse 6hp (164cc) oil ratio plz.

    I recently bought this outboard engine but i dont know what oil to use and ratio.Could you plz help me?

    Thanks in advance.

    John , Greece.


  • #2
    Re: Johnson seahorse 6hp (164cc) oil ratio plz.

    post the model number or year please. It's most likely 50:1, but you want to be sure....
    Please no PMs. My mailbox is full anyway......

    Comment



    • #3
      Re: Johnson seahorse 6hp (164cc) oil ratio plz.

      Originally posted by tx1961whaler View Post
      post the model number or year please. It's most likely 50:1, but you want to be sure....
      Thanks a lot for the reply.
      Where i can find the model number ? The only i know is the serial number.

      john.

      Comment



      • #4
        Re: Johnson seahorse 6hp (164cc) oil ratio plz.

        Post the serial number. Older models had a two part serial number, the first part being the relevant model number The numbers should be on a plate on the transom bracket

        Do you know the age.

        Generally anything from 1964 onwards will run on 50:1. I think all 6 hp models are after that year. ( except for a couple from the 1920s)

        Comment



        • #5
          Re: Johnson seahorse 6hp (164cc) oil ratio plz.

          Originally posted by Vic.S View Post
          Post the serial number. Older models had a two part serial number, the first part being the relevant model number The numbers should be on a plate on the transom bracket

          Do you know the age.

          Generally anything from 1964 onwards will run on 50:1. I think all 6 hp models are after that year. ( except for a couple from the 1920s)
          Thanks for the reply @Vic.S.
          The s/n: 6203B17031 I dont know about the age.
          Is there a spesific kind of oil?

          Comment



          • #6
            Re: Johnson seahorse 6hp (164cc) oil ratio plz.

            6203 is the model number. It makes it a 1972 model

            50:1 fuel mix then using a TCW3 2 stroke outboard engine oil

            That's near enough 1 pint in 6 gallons

            more precisely

            2.56 fluid ounces per US Gallon

            3.2 fluid ounces per UK (Imperial ) Gallon

            20mls per litre anywhere in the world except the USA

            2% if you are a mathematician

            Comment



            • #7
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              Re: Johnson seahorse 6hp (164cc) oil ratio plz.

              Originally posted by Vic.S View Post
              6203 is the model number. It makes it a 1972 model

              50:1 fuel mix then using a TCW3 2 stroke outboard engine oil

              That's near enough 1 pint in 6 gallons

              more precisely

              2.56 fluid ounces per US Gallon

              3.2 fluid ounces per UK (Imperial ) Gallon

              20mls per litre anywhere in the world except the USA

              2% if you are a mathematician
              Thanks a lot .Thanks for the explanations .And have a nice summer.

              Comment


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