FYI: most "won't run" problems with small engines can be fixed with new
spark plug, air filter, and carb cleaning.

Easiest carb cleaning is to spray it with carb cleaner. At the same time,
put conditioner in gas.

If that doesn't do it, then you may have to actually remove the carb,
disassemble, clean, kit, and re-install. Some of the small carbs are tough
to get to.