Oilgas mix

I have a mercury 2 stroke 4.0

I have a mercury 2 stroke 4.0 hp outboard can anyone give the proper oil/gas mix?

Merc didn't build a 4 hors

Merc didn't build a 4 horse before 1979 so 50:1 - regular unleaded and TCW3 rated marine 2 stroke oil.

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