Yamaha F250AETX v6 Owner's Manual

Yamaha F250AETX manual cover
Pages 118
Year 2016
Language(s)
English en

Yamaha F250AETX Specification

The Yamaha F250AETX is a high-performance outboard motor designed for marine enthusiasts who demand reliability and power. This four-stroke engine provides exceptional fuel efficiency and smooth operation, making it suitable for a variety of boating applications. The engine boasts a displacement of 4169cc and delivers a robust 250 horsepower, ensuring strong acceleration and top-end performance. Featuring Yamaha’s advanced electronic fuel injection system, the F250AETX offers precise fuel delivery for optimal performance and reduced emissions.

The engine also incorporates Yamaha’s Variable Camshaft Timing (VCT) technology, enhancing torque and power across the entire RPM range. Equipped with a 60-degree V6 configuration, this outboard balances power and compactness, facilitating a streamlined design that complements a wide range of boat types. The F250AETX is built with a 25-inch shaft length, making it suitable for various transom heights. Its multi-function tiller handle option provides intuitive control, enhancing maneuverability and ease of operation.

Durability is a key feature of the Yamaha F250AETX, with a corrosion-resistant design that includes a freshwater flushing system, stainless steel components, and a special coating for protection against harsh marine environments. The motor's digital network gauge compatibility and Yamaha’s Command Link system offer advanced monitoring and control capabilities, allowing for seamless integration with modern marine electronics. Additionally, the F250AETX runs quietly, thanks to its in-bank exhaust system, which minimizes noise and vibration. This powerful and efficient outboard motor is an excellent choice for those seeking a reliable and technologically advanced solution for their marine propulsion needs.

Yamaha F250AETX F.A.Q.

What type of fuel is recommended for the Yamaha F250AETX?

The Yamaha F250AETX is designed to run on unleaded gasoline with a minimum octane rating of 87 (R+M)/2.

How often should I change the engine oil on my Yamaha F250AETX?

It is recommended to change the engine oil every 100 hours of operation or at least once a year, whichever comes first.

What is the proper way to winterize the Yamaha F250AETX?

To winterize your Yamaha F250AETX, stabilize the fuel, fog the engine, drain and replace the gear oil, and remove the battery for storage in a cool, dry place.

How do I troubleshoot a starting issue with my Yamaha F250AETX?

Check the battery connections, ensure the fuel line is not clogged, verify the kill switch is disengaged, and inspect the spark plugs for wear or damage.

What is the correct propeller size for the Yamaha F250AETX?

The correct propeller size depends on the boat's weight and application. Consult the Yamaha propeller selection guide or contact a Yamaha dealer for recommendations.

How do I check the engine's cooling system on the Yamaha F250AETX?

Regularly inspect the water intake screens for debris and ensure a steady stream of water from the cooling water indicator (pee hole) when the engine is running.

How can I improve the fuel efficiency of my Yamaha F250AETX?

Maintain a clean hull, use the correct propeller, operate at optimal RPM, and ensure the engine is well-maintained to improve fuel efficiency.

What should I do if my Yamaha F250AETX overheats?

Immediately stop the engine, check for water flow from the cooling water indicator, inspect the water intake for blockages, and allow the engine to cool before restarting.

How do I perform a routine inspection on my Yamaha F250AETX?

Regularly check the engine oil level, inspect the fuel system for leaks, ensure the propeller is free of damage, and verify all electrical connections are secure.

What is the recommended break-in procedure for a new Yamaha F250AETX?

For the first 10 hours, avoid prolonged operation above 3,000 RPM, vary engine speed, and avoid full-throttle operation for extended periods.