Most manufacturers’ recommendations for flushing or running a motor out of water are similar. However, you should still check the specific procedure for your model.
While you should keep the engine in neutral while running it out of water, you still need to be careful around the propeller. Injury or damage will result if the engine accidentally slips into gear and the connecting rod is on the propeller side of the motor.
Do not start the engine before turning on the water.
If you need to put the engine in gear to test the propeller’s function, use caution and make sure no people or objects go near the moving propeller.
If there’s no stream, turn off the engine immediately. Insert a thin wire into the outflow tube to check for debris. Start the engine again to see if that solved the problem. If there’s still no outflow, you will likely need to have a mechanic replace your water pump. [12] X Research source
Don’t run the engine unattended. Keep an eye on the muffs and make sure they don’t slip off of the water intakes. [14] X Research source Regardless of your task, it’s unlikely that you’ll need to run it more than 10 to 15 minutes.
