How to Remove outer CV Honda civic 1994?

Most CV Joints are held on by retaining clips. Cut the boot out of the way and clean the grease off with brake cleaner, look for a snap ring, if no snap ring is visible then it may have a retaining clip that requires you to put shaft in a vise and hit the joint to drive the CV joint off the shaft (care should be taken not to damage the cage if it is to be re-used).

With the low cost of CV 1/2 shaft assemblies, I recommend replacing the entire half shaft assembly and not bothering with removing the CV from the old shaft.