Learn How to Winterize Your Sea-Doo Jet Ski, Yamaha Waverunner, or Kawasaki PWC

During the hot Texas summer, it’s hard to beat the thrill of riding your jet ski at a local watering hole. Yet, when the weather cools down and your last ride of the season is over, it’s time to store your personal watercraft (PWC) for next season. Rather than simply storing it in the shed for the season, you should learn how to winterize a jet ski or PWC the right way.

Winterizing your PWC protects it from damage during the off-season, so it’s ready for more fun and adventure when next summer rolls around.

Do You Need to Winterize a Jet Ski in Texas?

The answer is a resounding yes. Winterizing your PWC is important — even in Texas, where winters are usually mild. Sudden cold snaps and freezing nights can still occur, and if any water remains inside the engine or exhaust, you may face a cracked engine block or damaged components.

Skipping the winterization process can also lead to:

• Gummed-up fuel injectors.
• Dead batteries.
• Corrosion from moisture and humidity.

So, if you want to enjoy riding your jet ski year after year, take the time to winterize your PWC.

Your DIY Jet Ski and PWC Winterization Checklist

Ready to keep your ride in top shape for next season? Follow these simple steps to winterize a jet ski and keep your ride in top shape. Check your owner’s manual for model-specific instructions and follow OEM recommendations to help protect your warranty.

1. Drain Water and Replace With Antifreeze

Water can damage your jet ski during those freezing winter months. So, take some simple steps to remove it:

• Remove your jet ski from the water and tilt the front.
• Allow gravity to help drain any water from the engine, exhaust, or cooling system.
• Start the engine and run it for about 30 seconds, turning the throttle occasionally.
• Repeat this process until no water comes out.
• Fill the cooling system with jet ski antifreeze to prevent residual moisture from expanding and damaging components.

2. Add Jet Ski Fuel Stabilizer

An empty fuel tank can cause condensation to form on exposed surfaces. Prevent this by filling your fuel tank and adding a fuel stabilizer. Then run your engine for about five to 10 minutes to ensure the fuel mixes evenly throughout the system.

This minimizes the risk of fuel deteriorating or causing gum buildup during winter storage.

3. Fog the Engine

Moisture damage during those long winter months can harm your PWC. Jet ski fogging oil coats the engine’s cylinders and moving parts to prevent corrosion. Check your manual for the correct method of spraying fogging oil into the air intake or spark plug holes.

4. Change Oil

If you need to winterize a 4-stroke jet ski, changing the engine oil and filter can help prevent internal corrosion.

5. Remove and Store the Battery

Proper jet ski battery storage prevents your PWC’s battery from losing its charge or becoming damaged when sitting unused during the winter months. Disconnect it from the jet ski and store the battery in a cool, dry place. A battery tender or trickle charger can help keep the battery charged and maintained so it’s ready to go in the spring.

6. Clean and Dry Your PWC

Keep your watercraft looking its best by washing it thoroughly inside and out. This includes:

• Removing any valuables and electronics.
• Spraying the vehicle down inside and out.
• Washing the jet ski with a mild soap.
• Cleaning around and under accessories.
• Drying it — especially in hard-to-reach areas where moisture builds up.
• Waxing the shell to protect it from moisture and UV damage during storage.

Jet Ski Storage Tips for Texas Owners

Storage and knowing how to cover a jet ski for winter is just as necessary as winterizing it. Here are some options Texas owners can use to keep their PWC safe, dry, and ready for next season:

• Indoor storage: Storing your watercraft in a protected space, such as a garage or self-storage unit, offers protection from weather, sun, and theft.
• Outdoor storage: If you store it outdoors, choose a secure, level spot that is away from trees and potential falling debris.
• Shrink wrap: Shrink wrapping a jet ski provides a tight, weatherproof seal that keeps out moisture and pests.
• Fitted cover: A high-quality cover protects against dust, rain, and UV rays. Ensure it fits snugly and is specifically designed for your PWC model.
• Moisture control: Place a moisture absorber for jet ski storage inside the hull or storage compartments to help prevent mold, mildew, and musty odors during the off-season.

FAQs for Jet Ski Winterization in Texas

Do you have questions about winterizing your jet ski or PWC to prepare it for winter in Texas? Here are answers to some of the most frequently asked questions from local riders.

When Is the Best Time to Winterize a Jet Ski in Texas?

Late fall is the best time to winterize your jet ski, especially before the first freeze or when overnight temperatures begin to drop below 40 degrees Fahrenheit.

Should I Remove the Jet Ski Battery for Winter?

One of the top jet ski battery storage tips is to remove your battery during the winter and store it somewhere safe and dry.

What’s the Difference Between Winterizing a 2-Stroke Jet Ski and a 4-Stroke?

Both 2-stroke and 4-stroke jet skis need draining and a fuel stabilizer. However, 4-strokes also require an oil change, while fogging is especially important for 2-strokes.

How Do I De-Winterize a Jet Ski?

After the effort you put into winterizing your jet ski, it’s important to take the same care when preparing it for the new season. De-winterizing steps include:

• Reinstalling the battery
• Checking fluids
• Inspecting for leaks
• Running the engine briefly before your first ride

Are There Any Model-Specific Tips to Winterize Sea-Doo, Yamaha, and Kawasaki Jet Skis?

Every PWC model is different and requires a proper understanding of the owner’s manual for brand-specific steps during the winterization process.

Should I Contact a Professional for Jet Ski Winterization?

While DIY jet ski winterization can save you money and may work for simpler upkeep, it’s easy to miss a step — especially with today’s advanced watercraft engines. Hiring a professional to winterize your vehicle is the best way to get your PWC ready for action next season. You get the peace of mind that comes with knowing a certified tech gave your jet ski a once-over. It’s also great for:

• Winterizing complex engines and newer models.
• Avoiding costly mistakes.
• Protecting your warranty.

Contact Family PowerSports to Protect Your Jet Ski This Winter

Ready for worry-free winterization? Whether you’re a seasoned rider or new to PWC ownership, the certified technicians at Family PowerSports are here to make sure your jet ski is protected and ready for next season’s adventures. You can book this service at one of our many locations in Texas.

Contact us today to speak with one of our friendly Sea-Doo and PWC team members about your jet ski’s needs.