Yamaha FX HO, FX Cruiser HO Waverunner 2020 Owner's Manual
![Yamaha FX HO, FX Cruiser HO Waverunner 2020 manual cover](/images/4161911931c4b0947306a5d0/thumbs/thumb175x175.webp)
Regular maintenance includes checking the engine oil, inspecting the hull for damage, flushing the cooling system after use in saltwater, and ensuring the battery is charged. Always refer to the owner’s manual for detailed maintenance schedules.
Check the battery charge and connections, ensure the safety lanyard is properly attached, verify that the fuel tank has enough fuel, and inspect the spark plugs for wear or damage. If issues persist, consult a professional technician.
Winterizing involves cleaning the exterior, flushing the cooling system, stabilizing the fuel, changing the oil and filters, and storing the Waverunner in a dry, sheltered location. Consider using a storage cover to protect from dust and debris.
Attach a garden hose to the flushing port, start the engine, and then turn on the water. Run the engine for a few minutes to flush out salt, sand, and debris. Turn off the water first, then stop the engine.
Maintain a steady speed, avoid rapid acceleration and deceleration, ensure the hull is clean, and keep the Waverunner well-maintained. Additionally, avoid carrying unnecessary weight, which can increase fuel consumption.
Use Yamalube 4W 10W-40 oil or equivalent, designed specifically for marine engines. This oil provides optimal performance and protection for Yamaha watercraft engines. Always refer to the owner's manual for specifications.
Ensure the Waverunner is on a level surface. Remove the dipstick, wipe it clean, reinsert it fully, and then remove it again to check the oil level. The oil should be between the minimum and maximum marks on the dipstick.
Inspect the impeller and jet pump for debris or damage. Vibrations can also be caused by engine issues or hull damage. If the problem persists, have the Waverunner inspected by a professional technician.
Check the cooling water intake for blockages, ensure the impeller is not damaged, and verify the cooling system is functioning properly. Flushing the system after use in saltwater can prevent clogs and overheating.
Rinse the hull with fresh water after each use, particularly after saltwater exposure. Use a mild detergent and soft cloth to clean the surface. Regularly inspect for damage and apply a marine-grade wax to protect the finish.