I do believe that 1962 engine is still a 24:1 mix as is my 1960 model.
80lbs on that engine is very good, clean carb and good spark it should purr like a kitten.
Funny, I searched online before either of you posted about fuel mix, and apparently it is a very contentious issue! Some people say 50:1 (because they changed something in the motor that year, that doesn't necessitate additional oil), some people say 24:1 "to be safe."
Maybe I should just split the difference?