Subaru SP170 User Instructions

Subaru SP170 Engine manual cover
Pages 24
Year 2010
Language(s)
English en
French fr
Spanish sp

Subaru SP170 Engine Specification

The Subaru SP170 Engine is a robust power solution designed for a variety of applications, providing reliability and efficiency. It features a durable single-cylinder, four-stroke, air-cooled engine with an overhead camshaft (OHC) design, which enhances performance and efficiency by reducing moving parts and mechanical noise. The engine has a displacement of 169 cubic centimeters, delivering a balance of power and compactness suitable for both residential and commercial use.

With a bore and stroke of 70mm x 48mm, the SP170 Engine achieves a maximum output of approximately 5.7 horsepower at 4000 RPM. Its compression ratio of 8.5:1 ensures efficient fuel consumption, making it economical for long-term operation. The engine employs a recoil start system, which is designed for easy operation and reliability in various environmental conditions.

The SP170 is equipped with a high-capacity lubrication system, which includes a splash lubrication mechanism to ensure optimal engine life and performance. This engine also features a large-capacity muffler, reducing noise output and enhancing user comfort. The fuel tank has a capacity of 3.6 liters, allowing for extended operation periods without frequent refueling.

Emphasizing versatility, the Subaru SP170 Engine includes a built-in automatic decompression system that facilitates smoother starting, and its lightweight design, at approximately 15 kilograms, makes it suitable for portable applications. Designed with an emphasis on durability and longevity, the SP170 incorporates high-quality materials and precise engineering, ensuring dependable operation in a wide range of conditions. This engine is ideal for powering equipment such as generators, pressure washers, and other machinery where consistent performance is crucial.

Subaru SP170 Engine F.A.Q.

What is the recommended oil type for the Subaru SP170 engine?

The recommended oil type for the Subaru SP170 engine is SAE 10W-30, which provides optimal performance across a wide range of temperatures.

How often should I change the oil in my Subaru SP170 engine?

You should change the oil in your Subaru SP170 engine every 25 hours of operation or at least once a season, whichever comes first.

What could cause the Subaru SP170 engine to not start?

Common causes for the Subaru SP170 engine not starting include a lack of fuel, a dirty air filter, a faulty spark plug, or a discharged battery.

How do I clean or replace the air filter on the Subaru SP170 engine?

To clean or replace the air filter, remove the filter cover, take out the air filter, and clean it with compressed air. If it is damaged or excessively dirty, replace it with a new one.

What is the proper way to store the Subaru SP170 engine during the off-season?

To store the Subaru SP170 engine, drain the fuel, change the oil, clean the air filter, and store in a dry, cool place. Ensure the engine is covered to prevent dust accumulation.

How can I troubleshoot if my Subaru SP170 engine is overheating?

If your Subaru SP170 engine is overheating, check for clogs in the cooling fins, ensure proper oil levels, and verify that the air intake is not obstructed.

Why is my Subaru SP170 engine running rough or misfiring?

A rough running or misfiring Subaru SP170 engine may be due to a dirty spark plug, incorrect fuel mixture, or an obstructed air filter.

What maintenance steps should I regularly perform on my Subaru SP170 engine?

Regular maintenance for the Subaru SP170 engine includes changing the oil, inspecting and cleaning the air filter, checking the spark plug, and ensuring all bolts and screws are tightened.

How do I adjust the idle speed on the Subaru SP170 engine?

To adjust the idle speed, locate the idle adjustment screw on the carburetor and turn it clockwise to increase or counterclockwise to decrease the idle speed.

What could cause the Subaru SP170 engine to emit black smoke?

Black smoke from the Subaru SP170 engine may indicate a rich fuel mixture, which can be caused by a clogged air filter or carburetor issues.