As a general rule, very few 2t engines require such a mixture. In our testing, 32 to 1 (or 4 ounces per gallon) provided all the wear protection possible in outboard engines. However, there are a few "cheap" engines that don't use roller bearings in critical locations, but instead use a brass or "oilite" bushing. Those engines do need very rich oil mixtures. Examples include some 1960's 2 stroke lawn mowers and other ancient engines.
I don't know how your engine is constructed, but it is a Mexican copy of a European design. I suspect it's a conventional roller bearing design and would do just fine on 32 to 1.