I have a 1993 Honda 125cc was told to mix gas but these oil in crankcase do I need to mix?

You would never mix any fuel and oil for the crankcase. If it is a 2-stroke engine, the fuel and 2-stroke oil will need to be mixed before entering the cylinder. Some engines have an automatic mixing setup - those have a separate oil reservoir for 2-stroke oil, but it will usually be a plastic tank, located nowhere near the crankcase. On a "4matic" engine, it fires like a 4 stroke, but there is no crank case, and the fuel needs to be mixed like a 2 stroke. What is the vehicle you are referencing? A dirt bike or street bike? It seems the CR125 and NR125 are both 2 stroke engines, so somehow the fuel needs to be mixed with 2-stroke oil. Can you take a picture of the crankcase oil cap?