Evinrude Yachtwin 9.9 year and fuel mixture

[bfour91]

I have a Model E1ORCOM, Ser. # E0479675, Evinrude Yachtwin 9.9hp motor. Could someone tell me the year and fuel mixture for this motor?

 

[boobie]

1985 and use 50:1 premix............

 

[bfour91]

Thanks for the info