RE: honda 4 stroke in a 1/5th scale?
Two Strokes: Ignites each cylinder for every single Revolution
4 Strokes: Ignites each cylinder once every two revolutions.
The two stoke might not be as efficient as a 4 stroke, but it doesn't have a wasted unproductive revolution for each power producing revolution.
Also, you can design a 2 stroke for low end torque, but more often they are designed for high end power.
A 2 stroke air cooled motocross engine has a lot more low end torque than a 2 stroke watercooled TT engine of the same size.