Carburetor Adjustment, Exhaust Port Cleaning

MAINTENANCE	SRM-266/S

Exhaust Port Cleaning

Level 2

Parts Required: As needed; Heat Shield

1.Remove spark plug lead from spark plug, and remove engine cover.

2.Place piston at top dead center. Remove muffler (A) and heat shield (B).

3.Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port.

Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.

4.Inspect heat shield, and replace if damaged.

5.Install heat shield and muffler.

6.Tighten muffler mounting bolts (or nuts) to 90–110 kgf • cm (80–95 in • lbf).

7.Install engine cover and attach spark plug lead.

8.Start engine, and warm to operating temperature.

9.Stop engine, and re-tighten mounting bolts (or nuts) to specifications.

Carburetor Adjustment

Level 2

Engine Break-In

New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required.

High Altitude Operation

This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.

If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when operating the engine below 1,100 feet ASL, otherwise severe engine damage may result.

Parts None

Required:

26	X7502026004

SRM-266/S specifications

The Echo SRM-266/S is a powerful and versatile string trimmer designed for both residential and professional use. Known for its robust performance and user-friendly design, this tool is ideal for tackling tough trimming jobs with ease.

One of the standout features of the Echo SRM-266/S is its efficient 25.4 cc two-stroke engine. This engine not only delivers high power output but also ensures smooth operation, making it capable of handling dense grass and thick weeds. The engine's design contributes to its lighter weight, resulting in easier handling and reduced fatigue during extended use. With a speed of up to 7,500 RPM, this trimmer excels in cutting performance and efficiency.

The SRM-266/S is equipped with a patented i-30 starting system that significantly reduces the effort needed to start the engine. This technology makes it easier for users to get the tool running with minimal hassle, especially during multiple starts throughout the day. Additionally, the professional-grade air filtration system enhances the engine’s longevity by reducing engine wear and ensuring cleaner air intake.

For versatility, the Echo SRM-266/S features a 17-inch cutting radius, making it suitable for maneuvering in tight spaces and covering larger areas efficiently. It also supports a variety of cutting attachments, including blades and different line sizes, allowing users to customize the trimmer for specific tasks. The tool’s heavy-duty bump head, which allows for easy line advancement, ensures uninterrupted work and increased productivity.

The design of the SRM-266/S focuses on user comfort and control. It comes with a vibrate-reducing handle system, which minimizes vibrations during operation, making it easier for users to maintain accuracy and reduce operator fatigue. The adjustable and ergonomic handle can accommodate various user heights and preferences, promoting a more comfortable grip.

Additionally, the Echo SRM-266/S adheres to strict emission regulations, ensuring environmentally friendly operation. It complies with EPA guidelines, which is increasingly important for professionals who prioritize sustainability in their landscaping practices.

In summary, the Echo SRM-266/S combines power, performance, and comfort, making it a top choice for both homeowners and professionals looking for a reliable string trimmer. Its advanced technologies and ergonomic design reflect Echo's commitment to quality and innovation in outdoor equipment. Whether you are maintaining your garden, trimming edges, or tackling larger landscaping projects, the SRM-266/S is designed to meet your trimming needs efficiently and effectively.