2013 Kawasaki JET SKI Ultra LX Owners Manual - Page 7

Operation in shallow or debris-laden water can allow objects or sand from the bottom to sucked into the jet pump, damaging the impeller and possibly clogging cooling hoses which can cause severe engine damage from overheating. To prevent sucking objects and/or sand into the jet pump, the watercraft must be in water at least 0.8 m (2.5 ft) deep when starting. Do not operate in shallow or debris-laden water or run the watercraft onto the shore. The jet pump bearings and seals require periodic service. Major engine damage can occur if the jet pump bearings fail due to lack of maintenance. Have your Kawasaki dealer inspect the jet pump bearings and seals after the first 25 hours of use or every year, whichever comes first; and then every 50 hours or every year, whichever comes first. The jet pump bearings should also be serviced before any prolonged storage to prevent any water that may be left in the pump from corroding the bearings and causing premature failure. Since JET SKI personal watercraft are not designed to be docked in the water for extended periods, prolonged immersion in water will cause the hull paint to bubble and peel, as well as electrolytic erosion of some metal parts in the jet pump. To prevent paint damage and electrolytic erosion, remove your JET SKI watercraft from the water at the end of each day's use; do not leave it in the water overnight. Your JET SKI watercraft will last longer and look better if you remove it from the water at the end of every day's use.