How to Winterize a Jet Ski

How to Winterize a Jet Ski

When it’s autumn, you must take vital measures such as cleaning, draining, and lubricating your jet ski. Otherwise, it will get damaged. 

Living in warmer areas gives you the benefit of storing your jet ski on a wet dock. However, if you experience drastic temperature drops and freezing winters in your area, you must winterize your jet ski properly.

Winterizing Your Jet Ski

Your jet ski comes with a model manual to help you with your winterizing process. But if you want to know about the basics of winterizing a jet ski, here’s a detailed guide to help you protect your watercraft (PWC).

Flush Your Jet Ski

Removing excess water from the cooling system of your jet ski is the foremost step in winterizing your PWC. Once you take your jet ski out of the water to store it for winter, you must drain it thoroughly. 

For flushing out the jet ski, you must tilt it and run its engine for 30-second intervals. Make sure to tilt the handle towards the back. Once you flush out the water, you should also empty the cooling system to ensure it doesn’t gather dust particles, grime, and algae. 

If you have your jet ski’s manual, it will have details about the model’s flushing system. 

Use Antifreeze 

The next vital step is mixing antifreeze and water in a bucket. You must only use RV antifreeze as it is less harmful to the environment. Also, avoid using automobile antifreeze. 

When you store your PWC, the antifreeze prevents the remaining fluids from freezing in the jet ski’s exhaust system.

Besides this, running antifreeze through your jet ski’s system replaces water in the engine, intercooler, and exhaust. If you do not use antifreeze, the water will freeze.

In addition, this water expansion will crack the metal in your engine and damage other parts of your water scooter. 

Clean Your Jet Ski Thoroughly 

You must thoroughly clean the jet ski if you wish to winterize it properly. Start with washing the hull of the water scooter. Then, you can use a mild soap to get the dust and grime off. 

When you’re done scrubbing the hull, clean the shell of your vehicle and use wax to protect it from UV damage. Next, you must clean the bilge of the water scooter to wash away the remaining grime. 

Lubricate Your Jet Ski 

Another crucial step in winterizing your PWC is to fill up the gas tank. You should fill it with a stabilizer, so it stays clean. You must read the label on the bottle of the stabilizer before you add it to your water scooter’s fuel tank. 

Next, run the jet ski’s engine for about 30 seconds to ensure that the stabilizer has mixed thoroughly with the fuel.

Once you stabilize the fuel, you must lubricate the seats with wax or other lubricants. You can also use the protectant suggested by your jet ski’s manufacturer. 

Then take an anti-corrosion spray and start spraying all the parts in the engine compartment. Focus on the electric components and metal parts. Also, spray the pump area with the anti-corrosion spray for longevity.

Remove the Battery

If you don’t remove the battery before storing your jet ski, it can get damaged during the winter. Freezing weather can also reduce the battery’s charge. Thus removing the battery is a critical step in winterizing the jet ski.

When you take out the battery, remember to remove the negative connection before removing the positive end of the battery. Then, you can charge the battery when your PWC is stored. 

Charge the Battery

Once you securely remove the battery, you can attach it to an automatic battery charger. You must ensure that the surface is away from flammable objects.

Besides this, you must charge and store the battery under room temperature and conditions where the temperature does not drop below the freezing point. 

Cover Your PWC

Many jet ski owners keep a custom-fitted cover for their watercraft. But if you don’t have one, you can simply purchase a cover from the manufacturer or use another cover for the winterizing process. 

You must use a large cover that completely covers the jet ski. If you leave it uncovered, many insects and small critters start residing in your jet ski’s exhaust ports.

You wouldn’t want your storage compartments to be filled with tiny insects and rodents when you take your jet ski next summer. This is why it’s crucial to cover the water scooter to keep it safe from rodents and mice. If you do not cover your jet ski properly, rodents can nimble on the plastic, foam, and wires and ultimately damage your jet ski. 

Use a Trailer 

If you wish to safely store your jet ski for the year, you must invest in a trailer. The trailer will properly store your water scooter for the season.

It’s also ideal for storing the jet ski in a barn or shedding. If you want to use the jet ski trailer, remove the tires and put wooden blocks to avoid corrosion and damage. 

Ensure that you put a cover on top of the trailer or your jet ski to prevent animals from residing inside the engine. Remove all corrosive and flammable substances from the areas as the jet ski’s tank has gas. 

Use a Jet Dock Next Season 

You may have learned how to winterize your jet ski to store it for the season. But you must also take some vital steps for easy maintenance and cleaning.

Investing in a jet dock is suitable for you if you wish to keep your water scooter running next year! Jet dock lifts can easily raise the jet ski out of the water. In addition, it prevents hull delamination and protects your water vessel. 

Final Thoughts 

You must winterize a jet ski after the last ride of the season. However, if you don’t find the time to properly winterize and store your water vessel, you can always store it before the temperatures reach 5 degrees Celsius. 

If you winterize your jet ski at a dealership, it can cost you $500. But learning to winterize your jet ski yourself is free.

The lubricants, protectants, and cover would cost you anywhere around $20 to $100. We hope this article helps you store your jet ski safely for the season! 

Warwick Braith

Warwick Braith is a thrill seeker at heart. He loves getting outdoors and testing his limits in the wild. As a blogger for YapQ, Warwick provides readers with insights and tips on how to get the most out of their outdoor experiences. Whether it's hiking, camping, or simply exploring nature, Warwick knows how to make the most of it.

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