How to flush water out of an outboard motor?

If you have been using your outboard motor in saltwater, it is important to flush it with freshwater afterwards to prevent salt buildup and corrosion. Flushing an outboard motor is a simple process that anyone can do. Here is a step-by-step guide on:

Step 1: Position Your Boat Properly

The first step in flushing an outboard motor is to position your boat correctly. You need to make sure that the outboard motor is elevated enough that water can flow out of it. You can do this by tilting the motor up or using a motor stand.

Step 2: Identify the Flushing Point

Next, you need to identify the flushing point on your outboard motor. This will usually be located on the side of the motor near the water intake. Look for a small tube or fitting that you can attach a freshwater hose to.

Step 3: Attach the Hose

Once you have identified the flushing point, it’s time to attach the freshwater hose. Simply screw the hose onto the fitting and make sure that it is secure. Turn on the water supply.

Step 4: Start the Engine

With the water supply running, start the engine and let it run for at least 10-15 minutes. This will allow the freshwater to flow through the motor and flush out any saltwater or other contaminants.

Step 5: Rotate the Outboard Motor

After running the engine for a few minutes, you should rotate the motor back and forth a few times. This will help to make sure that any trapped water is flushed out.

Step 6: Turn Off the Engine and Water Supply

Once you have run the engine for the recommended amount of time, turn it off and turn off the water supply. This will prevent any damage from occurring.

Step 7: Disconnect the Hose

Finally, disconnect the hose from the flushing point on your outboard motor. Make sure that all water has been drained from the motor before storing.

Flushing your outboard motor with freshwater is an important step in maintaining your boat’s engine. By following these simple steps, you can keep your outboard motor in great condition for years to come. Remember, prevention is key when it comes to keeping your motor functioning properly!

Have something to add or correct? Please let us know by clicking here.
* See disclaimer in the footer of the site for use of this content.

Related Questions


Latest Posts

Don't Miss

Our Newsletter

Get the latest boating tips, fishing resources and featured products in your email from!