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Have just bought Johnson 2 stroke 25HP - thought to be late 80's but cannot find serial no's.  Am told is a Seahorse - has been badly painted but runs OK


Has an electrical plug just by fuel intake which I am told is a charger.  Questions - Does this help date the engine?  Is this a battery charging outlet and if so how do I connect?  If not what is it?

What is correct gas/oil ratio?

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Hello fuel mix is 50 to 1 and will need model # to help with year

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