Yamaha FX SVHO, FX Cruiser SVHO Waverunner 2016 Owner's Manual
![Yamaha FX SVHO, FX Cruiser SVHO Waverunner 2016 manual cover](/images/0b961a02c1fc2e23a71f7015/thumbs/thumb175x175.webp)
Regular maintenance includes checking and changing the engine oil, inspecting and replacing the spark plugs, cleaning the air filter, checking the cooling system, and inspecting the hull and impeller for damage. It's also important to flush the engine with fresh water after saltwater use.
If the Waverunner won't start, check the battery connections and ensure the battery is fully charged. Inspect the spark plugs and replace if necessary. Also, ensure that the fuel is fresh and the fuel lines are not clogged.
To winterize your Waverunner, clean it thoroughly and flush the engine with fresh water. Add a fuel stabilizer to the tank, change the engine oil, and remove the battery for storage in a cool, dry place. Cover the Waverunner to protect it from dust and debris.
If the Waverunner overheats, stop the engine immediately and let it cool down. Check for any blockages in the cooling water intake and clear them if necessary. Ensure that the cooling system is working properly and inspect for any leaks.
To replace the spark plugs, first remove the ignition coils. Use a spark plug socket to unscrew the old plugs. Install the new spark plugs by hand to avoid cross-threading, then tighten them with the socket. Reattach the ignition coils.
Yamaha recommends using Yamalube 4W 10W-40 oil for the FX SVHO. This oil is designed specifically for marine engines and ensures optimal performance and protection.
To check the impeller, remove the intake grate and inspect the impeller blades for chips, cracks, or bends. Also, check for any debris that may be lodged around the impeller. Replace or repair if necessary.
During the first 10 hours, avoid operating at full throttle. Gradually increase the engine speed and vary the RPM to ensure proper engine break-in. This helps to seat the piston rings and reduces engine wear.
Check all electrical connections for corrosion or loose wires. Inspect the fuses and replace any that are blown. Ensure the battery is in good condition and fully charged. If problems persist, consult a professional technician.
Excessive vibration can be caused by a damaged impeller or debris in the pump. Inspect the impeller and remove any lodged debris. Also, check the engine mounts and tighten any loose bolts.