Winterising a Sea-Doo is a must if you're going to store your personal watercraft until spring season begins. The winterising process is essential to keep the engine tuned up and to repair problems from the last time the Sea-Doo has been used. Sea-Doo GTX DI is no exception. It is just one of the evolutionary models of Sea-Doo watercraft but has been most popular because of its stability, reduced exhaust emission, and luxury. Each part has a specified winterising process.
- Skill level:
Things you need
- XPS lube
- BRP fuel stabiliser
- Engine oil
- Bilge cleaner or mild detergent
Spray water in the jet pump's inlet/outlet and apply an XPS Lube coating. Check if the pump is water contaminated.
Inspect fuel hoses for leaks. Clamps can corrode prematurely with saltwater use. Look at the clamps closely and replace damaged clamps or hoses if needed.
Add BRP fuel stabiliser or equivalent to the fuel tank to avoid system gumming and fuel deterioration.
Change engine oil and filter.
Expel trapped water in the external intercooler. By taking off the intake hose out of the throttle body. Rev up the engine several times to up to 4,000rpm. Lubricate inside and out of the throttle body and reinstall air intake hose.
Drain exhaust manifold when stored in areas with freezing weather. Use the flushing connector in the rear of the vehicle and inject pressurised air into it until the water drains.
Test the coolant density using an antifreeze hydrometer. Replace if necessary to avoid deterioration.
Lubricate the engine by applying LocTite 767 anti-seize lubricant on spark plug threads and reinstall them.
Remove and clean battery.
Clean the bilge and watercraft body using a bilge cleaner or mild detergent.
Apply wax to the hull of the watercraft. Cover it and store in a dry place.
Tips and warnings
- Disconnect the coil from the main harness before disconnecting it from the spark plug.
- Check the manuals for recommended lubricant brands and maintenance.
- Strong detergent might cause damage in the Sea-Doo body if applied.
- Never leave the watercraft in water for storage. Avoid direct sunlight or never store under plastic.
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