Looking to buy a used 2-stroke outboard? Check compression first—uneven readings can signal engine issues. Inspect for corrosion, especially in saltwater-used motors. Ask about service history and check for excessive smoke when running. Look at the lower unit for oil leaks and propeller damage. Test it on water if possible. Parts availability varies by brand, so research before buying. A well-maintained 2-stroke can be a great deal, but thorough inspection is key to avoiding costly repairs. buy a used outboard motor