Yamaha F2.5SMHA Y12 v2 Owner's Manual

Yamaha F2.5SMHA Y12 manual cover
Pages 112
Year 2012
Language(s)
English en

Yamaha F2.5SMHA Y12 Specification

The Yamaha F2.5SMHA Y12 is a compact yet powerful outboard motor designed to deliver reliable performance for small watercraft. This model features a single-cylinder, four-stroke engine with a displacement of 72cc, ensuring efficient fuel consumption and a smooth, quiet operation. Its lightweight construction, weighing approximately 17 kg, enhances portability and ease of installation, making it an ideal choice for dinghies, tenders, and small boats.

The engine produces a maximum output of 2.5 horsepower, providing sufficient thrust for leisurely cruising. It utilizes an OHV (Overhead Valve) configuration, which contributes to its efficiency and durability. Yamaha's attention to detail is evident in the F2.5SMHA's design, which includes a 360-degree steering rotation for excellent maneuverability and a shallow water drive system for navigating in low-depth areas.

A manual pull-start ignition system ensures simplicity and reliability, while the integrated fuel tank, with a capacity of 1.1 liters, facilitates a compact design without compromising on range. The motor's cooling system is water-cooled, promoting optimal operating temperatures and extending engine life. Additionally, the F2.5SMHA is equipped with a splash guard and an anti-corrosion coating, which enhance durability and longevity in marine environments.

The Yamaha F2.5SMHA Y12 exemplifies a harmonious blend of performance, convenience, and reliability. Its user-friendly features, combined with Yamaha's reputation for engineering excellence, make it a compelling choice for boaters seeking a versatile and dependable auxiliary power source. This model represents Yamaha's commitment to producing high-quality marine engines that meet the diverse needs of recreational and professional users alike.

Yamaha F2.5SMHA Y12 F.A.Q.

What type of fuel is recommended for the Yamaha F2.5SMHA Y12?

The Yamaha F2.5SMHA Y12 outboard engine is designed to run on regular unleaded gasoline with a minimum octane rating of 86. Ensure the fuel is fresh and free from contaminants.

How often should I perform maintenance on the Yamaha F2.5SMHA Y12?

Regular maintenance should be performed every 100 hours of operation or at least once per year, whichever comes first. This includes checking the oil level, inspecting the spark plug, and examining the fuel system for leaks.

What is the correct procedure for starting the Yamaha F2.5SMHA Y12 engine?

To start the engine, ensure the engine is in neutral, prime the fuel system using the primer bulb, open the throttle slightly, and pull the starter cord briskly. Make sure the choke is engaged if the engine is cold.

How do I troubleshoot if the Yamaha F2.5SMHA Y12 won't start?

If the engine won't start, check the fuel level and quality, ensure the kill switch is in the correct position, inspect the spark plug for fouling, and verify the fuel line connections are secure.

What is the recommended oil type for the Yamaha F2.5SMHA Y12?

Use Yamalube 4M FC-W 10W-30 or 20W-40 oil for optimal performance. Always check the oil level before each use and top off as necessary.

How do I properly winterize the Yamaha F2.5SMHA Y12?

To winterize, drain the fuel from the tank and carburetor, change the engine oil, fog the engine with a corrosion inhibitor, and store the engine in a dry place. Disconnect the battery if applicable.

What should I do if the Yamaha F2.5SMHA Y12 overheats?

Stop the engine immediately if overheating occurs. Check the water intake for blockages, ensure the cooling system is functioning properly, and inspect the impeller for wear or damage.

How can I improve the fuel efficiency of the Yamaha F2.5SMHA Y12?

To improve fuel efficiency, regularly maintain the engine, use the recommended fuel and oil, avoid overloading the boat, and operate the engine at optimal cruising speed.

What is the procedure for changing the spark plug on a Yamaha F2.5SMHA Y12?

To change the spark plug, first remove the spark plug cap. Use a spark plug wrench to remove the old plug, check the gap on the new plug, and install it by hand before tightening with the wrench. Replace the spark plug cap securely.

How do I check the propeller for damage on the Yamaha F2.5SMHA Y12?

Inspect the propeller for nicks, dents, or bends. Ensure it rotates freely without wobbling. Remove any debris or fishing line from the propeller shaft. Replace the propeller if significant damage is found.