Mine has a metal label on it that says: "1/3 pint of SAE 30 oil to 1 gallon of gas." I don't honestly know the actual ratio, but that's what mine says.
The mixture you are looking for is 50:1.
what is the fuel/oil mixture for a stil chainsaw model 1629
50:1
what is the oil/fuel mixture for 1975 15hp johnson
100:1
Where is the low idle fuel mixture adjustment on a 2007 LT 1046 cub cadet riding mower model # 13AP11CH710
32 to 1 is best
One has 0.2% less Carbon
50:1
A 1977 model Eska outboard requires a 50:1 mixture, ( water cooled model.) The air cooled models use 32:1.
50:1
1 gal gas + 2cycle engine oil