Subaru EY44-2 Parts Manual

Subaru EY44-2 Engine manual cover
Pages 33
Year 0
Language(s)
English en

Subaru EY44-2 Engine Specification

The Subaru EY44-2 is a robust engine known for its reliability and efficiency in various applications, particularly in industrial and construction settings. This air-cooled, four-stroke, single-cylinder engine has a displacement of 404 cc, providing a potent combination of power and compactness. It delivers a maximum output of approximately 13 horsepower at 4,000 RPM, making it suitable for demanding tasks that require consistent performance. The engine's design incorporates an overhead valve (OHV) configuration, which enhances its efficiency by allowing for smoother airflow and improved combustion.

The EY44-2 features a recoil start system, ensuring ease of use and quick start-up, even in challenging conditions. Its lubrication system is designed to minimize wear and prolong engine life, utilizing a splash lubrication method that effectively distributes oil throughout the engine components. Fuel efficiency is optimized through a precision-engineered carburetor, which ensures optimal air-fuel mixture and reduces emissions.

The engine's dimensions are compact, with a dry weight of approximately 33 kilograms, making it versatile for integration into various equipment. Its robust construction includes a durable cast iron cylinder sleeve, enhancing its longevity and resistance to wear. The Subaru EY44-2 is equipped with a low-tone muffler, which reduces noise emissions, making it suitable for use in environments where noise control is critical.

Overall, the Subaru EY44-2 engine is engineered for durability and performance, offering a balance of power, efficiency, and reliability that meets the demands of professional applications. Its design and features make it a preferred choice for equipment manufacturers and users seeking a dependable power source.

Subaru EY44-2 Engine F.A.Q.

What type of fuel should be used in the Subaru EY44-2 engine?

The Subaru EY44-2 engine is designed to run on unleaded gasoline with an octane rating of 87 or higher.

How often should the oil be changed in the Subaru EY44-2 engine?

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

What is the correct spark plug gap for the Subaru EY44-2 engine?

The correct spark plug gap for the Subaru EY44-2 engine is 0.028 to 0.031 inches (0.7 to 0.8 mm).

How do I troubleshoot a Subaru EY44-2 engine that won't start?

First, ensure that there is sufficient fuel and the spark plug is functioning. Check for a clogged air filter or fuel line, and inspect the ignition coil and carburetor for any issues.

What is the recommended maintenance interval for the air filter in the Subaru EY44-2 engine?

The air filter should be checked and cleaned every 50 hours of operation and replaced every 200 hours or if it's excessively dirty or damaged.

How can I improve fuel efficiency on my Subaru EY44-2 engine?

Regular maintenance such as cleaning the air filter, using the correct fuel, and ensuring the spark plug and carburetor are in good condition can help improve fuel efficiency.

What should I do if the Subaru EY44-2 engine overheats?

Stop the engine immediately and allow it to cool down. Check for obstructions in the cooling fins, verify oil level, and inspect for any leaks or damages in the cooling system.

Can I use synthetic oil in the Subaru EY44-2 engine?

Yes, synthetic oil can be used in the Subaru EY44-2 engine, provided it meets the recommended API service classification and viscosity.

What is the procedure for adjusting the carburetor on the Subaru EY44-2 engine?

To adjust the carburetor, first warm up the engine. Adjust the idle speed screw and the mixture screw to achieve a stable idle and optimal performance. Refer to the engine manual for specific settings.

How do I store the Subaru EY44-2 engine for an extended period?

Drain the fuel, change the oil, remove the spark plug and add a few drops of oil into the cylinder. Turn the engine over several times to distribute the oil, and store the engine in a dry place.