Re: 1952 Evinrude 3 HP Oil Mixture
It is a common misconception that due to "better" oils you can lean the mixture. Dont do it, run it on the 16:1.
Because of the improved oil, you will smoke less, and not foul plugs like the old days. The motor is designed to run with a certain amount of oil in the fuel though. Without it, you dont have the lubricity that you require, AND you dont get the sealing properties that you would with a richer mix. The motors dont run as well, nor idle as well in certain situations with a leaner mix. The oil does more than just lubricate.
Run them on what they were designed to run on. Just my 2 cents. They arent making any more you know.