How to drain the oil from the lower unit of an outboard motor?

If you own an outboard motor, you know how important it is to take care of it. One of the important things you need to do is to regularly change the oil in the lower unit of the motor. Changing the oil may seem a little intimidating at first, but it’s actually a relatively easy process. Here is a step-by-step guide on.

Step 1: Gather the supplies you need to change the oil

Before you start, you need to make sure you have everything you need to change the oil. You’ll need a new oil filter, gear lube, a lower unit oil drain plug gasket, an oil drain pump and a container to collect the old oil.

Step 2: Run the motor for a few minutes

Before you drain the oil, run the engine for a few minutes. This will ensure that the oil is warm and will flow out of the lower unit more easily.

Step 3: Locate the oil drain plug

The oil drain plug is typically located on the lower unit of the outboard motor. Look for a small plug that is usually located on the bottom of the lower unit. Check the owner’s manual for the exact location of the drain plug.

Step 4: Remove the drain plug

Using a wrench or pliers, remove the drain plug. Be careful not to lose the drain plug gasket as you remove it.

Step 5: Drain the oil

Place the container below the lower unit and use the oil drain pump to extract the oil out of the lower unit. Pump the oil until it is completely drained. Be sure to dispose of the old oil properly.

Step 6: Replace the drain plug gasket and the drain plug

After the oil has been drained, replace the drain plug gasket and the drain plug. Make sure the drain plug is tightened to the manufacturer’s recommended torque specifications.

Step 7: Fill the lower unit with new oil

Use a funnel to fill the lower unit with new oil. Make sure you use the recommended type of gear lube for your outboard motor.

Step 8: Replace the oil filter

If your outboard motor has an oil filter, remove the old oil filter and replace it with a new one.

Step 9: Run the motor

Once you have replaced the oil and the oil filter, start the engine and let it run for a few minutes. This will ensure that the new oil is properly distributed throughout the lower unit.

Draining and changing the oil in the lower unit of an outboard motor is an easy process as long as you have the proper tools and follow the correct steps. By taking the time to change the oil regularly, you’ll be able to keep your motor running smoothly and avoid costly repairs down the road.

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