Yamaha F225FETX v3 Owner's Manual
![Yamaha F225FETX manual cover](/images/9beedc769d4bf7a6f1b0d9f3/thumbs/thumb175x175.webp)
Regular maintenance includes checking and changing the engine oil, inspecting the propeller, checking fuel lines, and replacing spark plugs. Always refer to the manual for specific intervals and procedures.
Use Yamalube 4M FC-W 10W-30 or 20W-40, which are specifically formulated for Yamaha four-stroke outboards. Always check your owner's manual for confirmation.
Check the battery connections, fuel level, and ensure the engine is in neutral. Inspect the spark plugs and fuel filter for dirt or damage.
Use unleaded gasoline with a minimum pump octane number of 89 (R+M)/2. Avoid fuels with more than 10% ethanol content.
Inspect the water pump impeller every 100 hours of operation or once a year, whichever comes first. Replace it if any wear is visible.
Stop the engine immediately and check for any blockages in the cooling water intake. Inspect the water pump and impeller for damage, and ensure the thermostat is functioning properly.
Ensure the engine is properly tuned, the propeller is undamaged and correctly pitched, and the boat is not overloaded. Regular maintenance also plays a critical role.
Symptoms include difficulty starting, poor engine performance, sputtering at high speeds, and a noticeable decrease in fuel efficiency.
Flush the engine with fresh water, change the oil and filter, stabilize the fuel, and fog the cylinders. Store the engine in an upright position in a dry place.
Rinse the engine thoroughly with fresh water, paying special attention to the cooling system. Use a mild detergent if necessary, and apply a corrosion protectant to metal surfaces.