WRH wrote:
50:1
That's 1 pint oil added to 6 gal gas. Do your self a favor and only use good
oil and high test gas.

Don't bother with high test gas... it could cause cause starting &
idling problems as there is usually an additive package included that
just isn't required for an outboard. The minimum octane rating for 1973
Evinrudes is 80.

Rob