Yamaha EX, EX Sport, EX Deluxe, EX Limited Waverunner 2022 Owner's Manual
![Yamaha EX, EX Sport, EX Deluxe, EX Limited Waverunner 2022 manual cover](/images/cb4d61707c7bef0fc4024133/thumbs/thumb175x175.webp)
To flush the engine, connect a garden hose to the flushing port, start the engine, and then turn on the water supply. Let the engine idle for about 5 minutes, then turn off the water before stopping the engine. This removes salt and debris from the cooling system.
Yamaha recommends using regular unleaded gasoline with a minimum octane rating of 87 (Research Octane Number 91) for all EX models. Avoid using fuel with more than 10% ethanol.
Check the battery connections and charge, ensure the safety lanyard is properly attached, and inspect the fuel level. If the problem persists, consult a Yamaha dealer for further diagnostics.
A routine maintenance schedule includes checking the engine oil and coolant levels before each ride, changing the oil every 50 hours or annually, and inspecting the spark plugs, fuel system, and hull condition regularly.
To winterize, clean and dry the hull, flush the engine with fresh water, add fuel stabilizer, change the oil, and remove the battery for storage in a cool, dry place. Cover the Waverunner to protect it from dust and debris.
Yes, the Yamaha EX Waverunner can be used in saltwater. However, it’s important to rinse the exterior and flush the engine with fresh water after each use in saltwater to prevent corrosion and salt buildup.
If overheating occurs, stop the engine immediately and let it cool down. Check for blockages in the cooling intake and ensure the cooling system is not clogged. If the issue persists, seek professional service.
Maintain proper engine tuning, ensure the hull is clean and free of marine growth, reduce excess weight, and operate at optimal speeds to improve fuel efficiency.
Store the Waverunner on a trailer or a dry surface, away from direct sunlight. Use a cover to shield it from dust and environmental elements. Ensure it is properly supported to avoid hull deformation.
To check the oil level, 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. It should be between the specified marks.