Guide to Winterising Your Sea‑Doo Watercraft

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Sea-Doo is an iconic brand of recreational watercraft, boasting a wide range of different models that are ideal for exploring the waters surrounding you year-round. The brand also specialises in making high-quality recreational watercraft that can withstand all types of weather, including the chilly and wet conditions of winter. While Sea-Doo boats are made to last, they’re not impenetrable. To continue using your Sea-Doo boat all year round, you’ll need to winterise it so that it can withstand cold temperatures and protect its engines from freezing. Fortunately, with a small investment in some key accessories and modifications, your Sea-Doo boat can be ready to brave the winter by following this helpful guide.

What Does Sea-Doo Winterising Entail?

Winterising your Sea-Doo is the process of making modifications to protect the engine, hull, and electrical components of your boat so that you can continue using it even in the coldest of temperatures. This includes cleaning, inspecting, and replacing certain components, such as the engine oil and filter. It can also include flushing and draining the exhaust system, internal engine lubrication, and cleaning the hull and body of your watercraft. To fully winterise your Sea-Doo, you’ll need to perform some extra maintenance on the engine and components of your boat, but the process is easy and affordable. A thorough winterisation of your Sea-Doo will protect it from freezing temperatures and make it last even longer with minimal maintenance. If you live in a cold climate, it’s essential that you winterise your boat, or it may not work at all. For the engine to start, the fuel must be kept warm enough to evaporate. If the fuel gets too cold, it can’t evaporate correctly and your engine won’t start. If the engine doesn’t start, it can’t warm up the rest of the boat, which means that everything else will freeze.

Clean jet pump

The jet pump is a crucial part of your boat’s engine that creates the water flow that drives it. However, this component can easily become clogged up with debris and sediment, which can lead to reduced water flow or even a complete shutdown of the pump. By cleaning your jet pump regularly, you can prevent this from happening and prolong the lifespan of your engine. To clean your jet pump, open up the cowling that surrounds it, remove the jet pump, and spray it down with a marine-grade cleaner to remove all the dirt and grime. Be careful not to let the cleaner touch the motor surrounding it, as it can cause damage. After cleaning the jet pump, spray it with a water-repellent spray to prevent corrosion and ensure that it lasts as long as possible.

Inspect jet pump

The jet pump is a crucial part of your boat, but it’s often overlooked when winterising your Sea-Doo. You must perform an inspection on your jet pump to ensure that it’s in working order before the cold weather arrives. If you wait until the winter to do this, it may be too late to find and fix any issues that are occurring, which could lead to your engine failing. To inspect your jet pump, open up the cowling that surrounds it and remove it from the engine. Carefully inspect the impellers, rotors, and housing, paying extra attention to any signs of wear and tear. If you notice any damage, you can replace the parts with new ones, which are easy to find online and affordable. If your jet pump is still in good condition, you can clean it with a marine-grade cleaner and a soft brush to remove any dirt and grime that may have built up.

Replace engine oil and filter

The engine oil and filter are two parts of your Sea-Doo engine that are commonly overlooked when winterising your boat. However, they’re crucial to keeping your engine protected and running smoothly, without fail. If the oil gets too cold, it becomes very thick and sticky and can actually stop the engine from operating correctly, which is dangerous and can be costly to repair. When you replace the engine oil and filter, you’re ensuring that they’re in good condition and ready to keep your engine protected for as long as possible. The recommended weight of oil for Sea-Doo engines is 10W-30. If you’re unsure of what weight of oil your engine needs, consult your owner’s manual for instructions on how to change it.

Flush and drain exhaust system

The exhaust system on your watercraft is important for removing exhaust gases from the engine, but it can also become clogged with sediment and other debris, which can decrease its effectiveness. By flushing and draining the exhaust system, you can remove any built-up debris and return it to working condition. When winterising your boat, you can flush and drain the exhaust system by removing the muffler and running the engine while it’s outside of the boat. After a few minutes, shut off the engine and let the exhaust system cool. Once it’s cooled, use a hose to flush the muffler out with water, followed by a water-drainage process to get rid of all the debris that was inside the muffler. This will return the exhaust system to working condition and make sure that your engine runs smoothly throughout the winter.

Internal Engine Lubrication

Another important part of winterising your Sea-Doo is internal engine lubrication. This process involves adding engine oil to the crankcase and the internal water pump of your engine to ensure that it operates smoothly and prevents it from seizing. Before adding engine oil to the crankcase, make sure that the oil is warm so that it’s not too thick and sticks inside the engine. When you’re ready to add the oil, pour it in through the dipstick hole and let it flow into the engine. For the water pump, you should use clean engine oil to add lubrication to the impellers.

Battery Care

The battery is an important part of your engine that helps it start, but it’s often overlooked when winterising your Sea-Doo. The battery is often exposed to extreme temperatures, which can cause it to freeze or even fail. To prevent this from happening, you’ll need to properly winterise your battery by following these steps. First, clean the terminals and posts of the battery with a wire brush to remove any corrosion. Next, apply marine-grade grease or spray on the terminals and posts of the battery to protect it from corrosion. To keep the battery warm, you can place it in a bucket of sand, or you can wrap it in blankets. If you’re going to use sand, make sure that the type of sand you use is not caked with salt.

Hull and Body Cleaning

The hull and body of your boat are commonly overlooked when winterising it, but it’s just as important as the other components. The hull and body of your boat are what protect the engine and other components from the cold, so they need to be in good condition. To winterise your boat hull and body, you’ll need to clean it with a marine-grade cleaner to remove any dirt or grime that has built up. You can do this by spraying the cleaner on the boat or using a sponge or a cloth to wipe it off. Once you’ve rinsed off the boat, you should let it air dry, or you can use a blow dryer to speed up the process.