Two stroke or four stroke????

[bmeier]

I have a 1975 50 hp evinrude model number 50573B. I need to know if it is a two or four stroke. This is my first boat and I am totally clueless. If it is a two stroke what should the mix ratio be, thanks for any help

 

[boobie]

Re: Two stroke or four stroke????

It's a 2 stroke and your fuel mix is 1 pint oil to 6 gal fuel. And use TCW 3.