It would be best not to attempt to turn on a jet ski without water.
Jet skis are designed to operate in water for several reasons…
- Cooling System – Jet skis use water from the surrounding environment (freshwater or seawater) to cool the engine and exhaust system. Running the engine without water can cause it to overheat rapidly, potentially leading to serious damage.
- Impeller and Pump Operation – A jet ski’s jet propulsion system relies on water being drawn into the intake grate and pumped through the jet pump to create thrust. Without water, the impeller (responsible for drawing in water) will not function properly. Dry operation can cause excessive wear or damage to the impeller and pump.
- Seals and Gaskets – Jet skis have seals and gaskets to prevent water from entering critical components. Running the jet ski without water can compromise these seals and gaskets, leading to leaks or water entering where it shouldn’t, potentially causing rust or corrosion.
- Electrical Systems – Some jet skis have electrical components cooled by water flow. Operating these systems without water cooling can lead to overheating and electrical failures.
Attempting to start or run a jet ski out of water harms the watercraft, poses safety risks, and can lead to costly repairs. Start and operate a jet ski in water to ensure proper cooling and lubrication of its internal systems. Suppose you suspect your jet ski has run out of water accidentally. In that case, it’s advisable to have it inspected by a qualified technician to assess any potential damage and make necessary repairs.
