1. Turn on the hazard warning light first, wait for 15 minutes or so, and let the engine cool itself. During this time, you can look for water.
2. Secondly, open the big lid, wrap the lid of the expansion kettle with cloth and open it slowly. When opening the lid, you must unscrew it slowly to prevent the hot air from rushing out and hurting people. After the expansion tank is filled with water, open the co-pilot seat and find the throttle.
3. Finally, remove the clamp on the throttle outlet pipe with pliers. When water flows out of the throttle outlet pipe, you can knock the engine and continue to add water to the expansion pot until there is no air in the throttle outlet pipe.