2 stroke engines are simpler and cheaper to manufacture compared to 4 stroke engines because of their less complicated design. 4 stroke engines last longer than 2 stroke engines that don't have a dedicated lubricating system. A 2 stroke engine can produce twice the amount of power than a 4 stroke engine of the same size. This is because it fires once every revolution instead of every other revolution giving it twice the power of a 4 stroke. Also has a higher weight to power ratio because 2 strokes are much lighter.