A Jet Ski Mechanic is responsible for diagnosing, repairing, and maintaining personal watercraft, including jet skis and other small water vessels. They inspect engines, fuel systems, electrical components, and propulsion systems to ensure proper functionality. Mechanics also perform routine maintenance such as oil changes, tune-ups, and winterization. They may work in repair shops, marinas, or for rental companies, ensuring watercraft operate safely and efficiently. Strong mechanical skills and knowledge of marine engines are essential for this role.