Can you flush a 2stoke outboard engine using caustic soda to de salt it?

No, you should not use caustic soda to flush a 2-stroke outboard engine. Caustic soda is highly corrosive and can damage the engine's internal components and cooling system. Instead, it's best to use fresh water or a specially formulated flushing solution designed for marine engines to effectively remove salt and contaminants without risking damage. Always refer to the manufacturer's guidelines for proper maintenance procedures.