I would choose a 4 stroke. They have less mechanical problems like broken and sheared bolts due to excessive vibration. Much less maintenance required. They are better for the environment and do not smoke or smell. They run smoother, quieter, and get better gas mileage. The pull start is much more convenient to use rather than peddling to start. 4 strokes also have their own cooling systems so overheating isn't a problem. The carbs don't require any adjustments and, of course, no oil and gas mixtures to keep adjusting for optimum performance. They are not prone to the wristpin and bearing problems that 2 strokes have.

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