Like inboards and sterndrives, outboard engines are also subject to potential damage from freezing and from being laid up in disuse for months at a time. So outboards demand winterizing too. To serve as our example, we used a Yamaha F150 four-cylinder outboard.

How do you winterize a 2 stroke Yamaha outboard?

Winterizing a 2-Stroke Outboard: Cylinders

1. Remove the spark plugs, and spray fogging oil into each cylinder for 4-5 seconds.
2. Gently pull the starter cord to rotate the engine a couple of times so the fogging oil gets spread all over the inside of the cylinders.

How do you Unwinterize an outboard motor?

Winterizing Your Outboard Motor

1. Drain the crankcase oil (Four-stroke motors)
2. Install a new oil filter (Four-stroke motors)
3. Filling the crankcase with new oil (Four-stroke motors)
4. Changing the lower unit gear oil.
5. Stabilizing the fuel.
6. Flushing the outboard with antifreeze.
7. Fogging the cylinders.

How do you winterize a Yamaha Waverunner?

Here are the steps for Winterizing a Yamaha Waverunner:

1. Remove spark plugs one at a time and spray fogging oil into each cylinder.
2. Wash engine compartment thoroughly with soap and water.
3. Ensure that the hull has completely drained.
4. Replace drain plugs.
5. Mix Antifreeze in the bucket with water – 1:1.

Do you really need to winterize an outboard motor?

If you want your engine to start in the spring and last you many years and plan on not using your engine all winter, you do have to winterize an outboard motor. Winterizing the engine helps to prevent damage during disuse, which is the chief cause for engine failure. Failing to winterize may lead to complications.

How do you de winterize a 2 stroke outboard motor?

How to De-winterize Your Boat

1. Take the Tarp Off. Before you do anything, you need to get the tarp or covering off your boat.
2. Check the Engine.
3. Refill the Cooling System.
4. Check Water Pumps and Thermostats.
5. Check Cables and Hoses.
6. Check Your Battery.
7. Clean the Distributor.
8. Check the Fuel System.

How much does it cost to winterize a WaveRunner?

4. Lubrication. During the course of the season, some of the seals and cables are going to get worn out in your jet ski. Each seal and cable needs to be well lubricated so that it does not experience any damage.