Any Echo chainsaw is considered by experts to be one of the most advanced gardening equipment.
Thanks to their simple design, large power reserves and stability, the tools of this manufacturer have earned popularity among gardeners in many countries around the world. Below we will get acquainted with the features of adjusting the carburetor of a chainsaw and consider the characteristics of the most frequently purchased models of this company.
Echo - Japanese quality at a reasonable price
The first Echo chainsaw was produced back in 1963. At that time, the company was known as Kyoritsu Noki Company Limited and was engaged in the production of agricultural machinery. The company received its current name in 1978. Now ECHO is part of the transnational corporation Yamabiko.
ECHO's headquarters are located in the suburbs of Tokyo, and its production facilities are located in the Japanese cities of Yokosuka and Morioka, as well as in China. The corporation's products have gained popularity due to their technology, excellent quality and high performance. Today, Echo chainsaws can be found in many industries.
These tools are used in professional felling, construction and repair, and are used by utility workers. Household and semi-professional models are excellent for caring for ornamental and fruit trees, harvesting and sawing firewood.
In addition to chain saws, the company produces brush cutters, cultivators, pole cutters, motor drills, motor drills, sprayers, lubricants and accessories. More detailed information about the range of manufactured products can be found here:
Echo Product Catalog
ECHO products combine high quality and reasonable prices, you can always buy tools according to your budget. In the manufacturer's catalog you can find expensive professional models and household tools at a budget price.
Echo CS 260TES 10” – areas of application and standard equipment
This Echo chainsaw is great for home use. It has a simple design, which makes tool repair quite convenient and quick.
This model is considered the lightest in its class, equipped with a system to facilitate starting and an effective inertia brake. Unit characteristics include:
- Cylinder volume – 27 cm3;
- Saw power – 1.7 l. s., or 1.2 kW;
- Fuel tank capacity – 245 ml;
- Working weight – 4.4 kg.
This chainsaw successfully copes with sawing small logs, as well as cutting down dry branches. The tool kit includes a chain, bar, case and documentation.
Chainsaws Echo: model range
This manufacturer's catalog contains many models of various chainsaws. Today we will present only a small part of the tools that can be ordered on the company’s website.
- Echo cs 361wes 14 is a powerful, reliable, maneuverable saw for construction work;
- Echo cs 3700es is a medium-power semi-professional saw - reliable, unpretentious, maneuverable;
- Echo cs 4200es is a farm chainsaw, designed for work of medium complexity;
- Echo CS-353ES is a household chainsaw with a powerful engine and at an affordable price;
- Echo CS-2511TES is the lightest (2.3 kg) chainsaw in the company’s lineup. Ideal for landscaping and construction work;
- Echo CS-360TES is an economical household chainsaw with a 30-centimeter bar. Intended for domestic use and repair and construction work;
- Echo CS-390ESX is a professional model. Equipped with an improved exhaust system;
- Echo CS-452ESX is a professional model. Features a powerful engine, reliability and high performance;
- Echo CS-510 is a powerful chainsaw for professional felling. Equipped with a multi-point symmetrical shock absorption system;
- Echo CS-620SX is a professional class chainsaw. Designed for felling trees in any climatic zones;
- Echo CS-8002 is the most powerful and expensive chain saw in the ECHO range. Equipped with a 50 cm long tire, you can install a tire up to 70 cm in size;
- Echo CS-452ESX-15″ – the saw is reliable and durable. An ideal tool for harvesting firewood and sawing lumber.
Chainsaw Echo cs 361wes 14
Chainsaw Echo cs 4200es
Chainsaw Echo CS-452ESX
Echo chainsaws: top models
All of the company's products are distinguished by high build quality and reliable components. However, there are several models of chainsaws in the line that have gained particular popularity and earned the most flattering reviews from their owners. We present the most interesting of them:
- Echo cs 260tes 10 is one of the lightest chainsaw models on the market, ideal for gardening and hedge maintenance work;
- Echo CS-350WES is a semi-professional class saw. Can be used for felling trees using a non-professional method, copes well with all household work;
- Echo CS-501SX - a powerful (3.5 horsepower) engine, excellent maneuverability, an effective vibration damping system and high performance - these are the distinctive features of this model.
Chainsaw Echo cs 260tes 10
Chainsaw Echo CS-350WES
Chainsaw Echo CS-501SX
Features of regulation and regulation
To learn how to adjust the carburetor on a chainsaw, you must learn to identify the three screws (some models only have one).
Screws L and H are similar only in appearance, in fact they are different
Each screw has its own letter designation:
- "L" is used to set low speed;
- "H" is required to adjust the maximum speed;
- "T" is required to adjust the idle speed (only one screw is present on single screw models).
The factory adjustment is optimal, and use the screws to adjust the engine operation in special situations (operation associated with different climate conditions).
The diagram shows the conclusions of the carburetor adjusting screws with the cover closed.
A special tool is used to install the chainsaw
Adjustment is carried out only by screws L and N. To increase the rotation speed, they rotate clockwise. Lower. counterclock-wise. Screw sequence: LHT
If you are in doubt about the adjustment, it is better to contact a specialist, as incorrect adjustment can damage the engine.
Source
Operating and maintenance manual for chain saws Echo
Instructions for all models of Echo chainsaws are available on the manufacturer's website. Before mounting the tool and starting work, we advise you to carefully read the description of the saw and the operating manual. Particular attention should be paid to studying and following safety regulations when working with chain saws.
- Pay special attention to the quality of the fuel. Use only high-quality ingredients to prepare it.
- It is important to put the chain on correctly. The cutting edges of the teeth should be directed in the direction of movement of the chain.
- Fill the lubrication system of the saw set with oil. During operation, always monitor the oil level in the tank.
Important: To lubricate the saw set, use only high-quality oils from ECHO; do not use used liquid as a lubricant.
- Make sure the anti-vibration system is in good working order. This will help avoid operator fatigue and increase productivity.
- To avoid damage to the saw set, keep the automatic lubrication system in good working order;
- While working, take short breaks every 45-50 minutes and let the chainsaw cool down. This is especially important when working with household-grade chain saws;
- Store the chainsaw in a dry, ventilated area, and do not forget to clean the tool after use;
- When carrying out work, use protective gloves and goggles or a mask;
- All repair work should be carried out with the engine turned off;
- When finishing work, always engage the chain inertia brake.
Preparation for operation and running-in
The saw is delivered assembled; the buyer only needs to check its contents, fasten the parts, and mount the bar and chain.
- Carry out a thorough inspection of the Echo chainsaw. Check the reliability of all parts and components.
- Mount the saw set. Be sure to pay attention to ensuring proper chain tension. When working in hot weather, adjust the tension, as the chain stretches at high temperatures.
- The next task is to break in the saw. This stage is very important as it extends the life of the engine. Running in the Echo chainsaw consists of two stages.
First stage:
- Prepare a small amount (1 tank) of fuel mixture in the proportion of 1 part oil to 25 parts gasoline.
- Fill the automatic chain lubrication system with oil.
- Start the engine.
Important: carry out break-in only with the saw set mounted.
- Let the motor run for 20-25 minutes. Periodically rev the engine for 25-30 seconds.
Second phase:
- Prepare a fresh fuel mixture at a rate of 1 to 50 and fill the saw with it.
- Run your chainsaw for 3-4 hours in gentle mode. At the same time, you should not cut thick logs and overheat the motor. Periodically (every 20-30 minutes of operation) turn off the engine and let the saw cool.
Important: Do not allow the automatic chain lubrication system to run out of oil.
Fuel and oil for chainsaws Echo
The manufacturing company recommends using only high-quality mineral and semi-synthetic oils for two-stroke engines. When preparing the fuel mixture, it is important to use high-quality high-octane gasoline AI-92, 95. The list of oils and lubricants recommended by the manufacturer can be seen here:
OIL JASO FD 1:50
PREMIUM B&C OIL
JASO FD OIL WITH DISPENSER
GEARBOX AND FLEXIBLE SHAFT LUBRICATION
Possible malfunctions of the Echo chainsaw and how to eliminate them
Malfunction | Possible reason | Remedy |
The engine will not start. | No fuel. The candle doesn't work. The carburetor is faulty. | Refuel the chainsaw. Clean the spark plug and replace it if necessary. Adjust the carburetor. |
The engine is running rough. | Carburetor settings are wrong | Adjust the carburetor |
When you press the gas button, the engine does not gain speed | The carburetor is dirty. | Disassemble and clean the carburetor. |
Oil is leaking from the automatic lubrication system. | The tightness of the tank and oil line is broken, the oil pump is damaged. | Restore the tightness of the connections and, if necessary, replace damaged parts. Repair or replace oil pump |
Extraneous sounds are heard when the chainsaw is operating. The instrument vibrates strongly. | The components and parts of the saw are poorly secured. Anti-vibration system malfunction. | Check all fastenings, tighten screws, nuts, clamps. Repair the shock absorbers yourself or contact a service center. |
Decrease in engine power. | The muffler is dirty or faulty. | Clean the muffler from carbon deposits and soot. |
Chainsaw Echo: advantages and disadvantages
Based on personal experience and taking into account feedback from Echo chainsaw owners, we have come to the conclusion that these tools have a number of undoubted advantages over their competitors. At the same time, some models are characterized by shortcomings and have a number of disadvantages.
Advantages:
- High build quality;
- Reasonable price;
- Ergonomic body;
- Light weight and excellent balance;
- Effective anti-vibration system;
- Adaptability to work in different climatic zones;
- Developed service infrastructure;
Flaws:
- Expensive spare parts;
- Requires high-quality oil and gasoline;
- Some models have a poor starter location.
Adjusting the carburetor of the Echo chainsaw
Setting up the carburetor of the Echo chain saw can be done both in the workshop and at home. Let's see how to do it yourself:
- When adjusting the carburetor, we use three adjusting screws: H – is responsible for the volume of fuel supplied to the combustion chamber at high speeds, L – is responsible for the fuel supply, T – is responsible for the volume of air supplied to the combustion chamber;
- Unscrew screws H and L counterclockwise until they stop. Do not over-tighten the screws - stop as soon as you feel resistance;
- Start the engine. If the engine does not start, enrich the fuel mixture by turning screw T clockwise ¼ turn;
- After the motor has started, turn screw T (turn counterclockwise) to reduce the speed until the chain stops moving;
- Warm up the engine for 10 minutes;
- Using screw L, find the maximum engine speed and unscrew the screw from this point by ¼ turn;
- Check the pick-up speed of the saw and, if necessary, use screw T to reduce the idle speed;
- More precise settings must be made using a tachometer or at a service center.
Adjusting the carburetor at home:
Adjusting the chain tension of the Echo chainsaw
From time to time, every owner of an Echo chainsaw has to adjust the chain tension. This can be done at home - it is not at all necessary to contact a specialist.
- Loosen the nuts on the protective cap that holds the tire down;
- By turning the adjusting screw, achieve the desired chain tension;
Important: A correctly adjusted chain, when moved by hand, does not make unnecessary sounds and rotates freely on the bar.
- Tighten the nuts and check the tension again. If necessary, adjust it.
Sharpening chainsaw chain Echo
Work productivity and consumption of fuels and lubricants largely depend on the correct sharpening of the cutting teeth of the chain. You can sharpen a chain at home. In order not to have to regularly contact a specialist, we recommend buying special files and sharpening at home.
- Buy a special template for your chain model, round and flat files;
- Clamp the bar and chain in a vice;
- Sharpen with light movements, strictly maintaining the angle, in accordance with the template;
- When sharpening, use the same number of strokes on each tooth;
- First sharpen all the teeth on one side, then on the other.
Popular models made in Japan
Saw Echo 350
This chainsaw has excellent properties that allow it to compete with popular models on the modern market.
ECHO 350
It has a built-in primer - a special pump responsible for pumping fuel, as well as a device responsible for easy starting of the unit. Its main advantages include technical excellence, optimal weight-to-power ratio.
The huge displacement of its engine is also an advantage over its competitors. One of the small drawbacks is the imperfect service, which is practically absent in small towns and remote regions.
Specifications:
The engine has power | 1.48-2.01kW/hp |
Nominal engine volume | 35.8cm |
Oil tank capacity | 230ml |
Fuel tank capacity | 370ml |
Chain pitch length | 3/8inch2 |
Guide bar groove | 1.3mm |
Saw bar length | 14-35inch/cm |
Nominal weight | 3600g |
The price of this device is from 15,000 rubles. See the video for an example of work:
Price for Echo 3500
This chainsaw is a small and powerful device that even professionals are satisfied with. It is reliable and stable, easy to operate and does not require special skills to operate (it only requires timely refueling and lubrication - read about choosing oil for chain lubrication).
The Swedish concern Husqvarna produces the Husqvarna 137 chainsaw, which is distinguished by its compact size and ease of operation. Before using this chainsaw, read the operating instructions for the Husqvarna chainsaw. From our other article you will learn about what malfunctions occur with Husqvarna chainsaws and how to fix them.
Specifications:
Nominal engine volume | 34cm cube |
Oil tank capacity | 190ml |
Fuel tank capacity | 320ml |
Chain pitch length | 3/8inch2 |
Saw bar length | 0.35mm |
Nominal weight | 3600g |
Note that this hand saw has one speed. The price of the device ranges from 10,000 rubles.
Saw Echo 353
This is one of the most popular models used on farms and in everyday life. It fully complies with all the highest quality standards and is also completely environmentally friendly. Ease of use and many undeniable advantages make it one step ahead of all competing devices.
ECHO 353
Specifications:
The engine has power | 1.59kW - 2.16hp |
Nominal engine volume | 34cm cube |
Oil tank capacity | 0.26l |
Fuel tank capacity | 0.25l |
Chain pitch length | 3/8inch2 |
Guide bar groove | 1.3mm |
Saw bar length | 14-35inch/cm |
Nominal weight | 4000g |
The price of the device starts from 14,000 rubles.
Owner reviews
Alexander Kryuchkov:
I chose a saw for my father. We used it in the village for sawing firewood, and in winter we went into the forest. Several large pine trees were felled. Echo works like a clock. It doesn’t eat extra fuel, and it doesn’t overuse oil either. This summer we started a small construction project in the village - the chainsaw did not rest. I realized that it is ideal for renovation and construction. The Echo saw has already earned its price.
Artem Shiryaev:
I bought Echo on the recommendation of a friend. I read reviews on the Internet, talked with sellers - I bought it for household needs and to cut firewood. Although the tool is a household tool, it can cut down trees up to 55 centimeters (I haven’t cut any more). Moreover, the weight is such that branches can be cut with one hand. I liked how it started in winter: the first or second time. I have no complaints about the instrument – it’s truly Japanese.
When is tuning needed?
In particular, in rare cases it is necessary to adjust the carburetor of a chainsaw; more often problems arise related to fuel consumption or wear of parts. But sometimes “symptoms” indicate the need to regulate the mechanism. Here are some signs:
- When the engine starts, it stops immediately. Alternatively, it won't start at all. The reason is too much air and not enough fuel.
- Fuel consumption increases as a result. a large amount of exhaust gases. This is due to the reverse process. oversaturation of the mixture with fuel.
Reasons for failure may be mechanical:
- Due to severe vibration, the protective cap is damaged, causing all three bolts to become loose.
- Due to wear on the engine piston. In this case, adjusting the chainsaw carburetor will only help temporarily; it is better to replace the worn part.
- Due to clogging caused by poor quality fuel, scale or filter damage. The carburetor requires complete disassembly, cleaning and adjustment.
If the chainsaw suddenly stops working, it must be disassembled to find out the reasons.
CS 600 Echo and CS 620SX 18” – areas of application of the models
These chainsaws have earned popularity due to their high power and reliability. They are successfully used in extreme conditions, and at the same time show excellent results and high speed.
Among the characteristics of the models are:
- Cylinder volume – 60 and 62 cm3, respectively;
- Power – 4 and 4.2 liters. With. respectively;
- Fuel tank capacity – 575 ml;
- Oil tank volume – 300 ml;
- Operating weight – 7.7 and 7.9 kg, respectively.
These chainsaws will become indispensable when it is necessary to cut down a large number of small and medium-sized trees. They consume small amounts of fuel and lubricant.
How does a chainsaw carburetor work?
Chainsaw carburetor Stihl MS 181 C BE
Chainsaw carburetors may differ in design. However, their basic elements and operating principle remain approximately the same.
Carburetor design:
This is a wind tunnel, across which there is an air damper - with its help the intensity of the air supply is regulated.
This part is where the base tube narrows - here the air flow speed increases, i.e. air is always supplied to the carburetor under some pressure.
In this area, the fuel comes into contact with the air flow. Fuel enters the atomizer from the float chamber through a nozzle (dispenser).
- Float chamber
This is a container that allows you to keep the fuel mixture in a stable state.
Chainsaw carburetor design diagram
A chainsaw carburetor works according to the following principle:
- when the engine starts, the main damper opens and a stream of air is supplied into the air channel at a certain speed;
- the speed of the air flow, as well as the level of the float in the chamber, are regulated by the position of the damper, namely due to the difference in pressure in the float chamber and the air channel;
- fuel from the float chamber is sucked into the nozzle, and from there into the diffuser;
- passing through the diffuser, the air captures the fuel entering there;
- the resulting mixture is fed into the cylinder cavities through the intake channels.
The principle of operation of a chainsaw carburetor
The pressure in the float chamber is approximately equal to atmospheric pressure, but a vacuum occurs in the air channels of the carburetor when the chainsaw engine starts. Opening the damper increases the air supply intensity. As a result, more fuel enters the carburetor, and the number of engine revolutions increases.
How to recognize carburetor failures?
Operation diagram of a chainsaw carburetor
Carburetor settings may be affected by:
- lack of fixation of the adjusting screws;
- wear of the piston group;
- clogged fuel-air channels;
- damage to air filters;
- poor quality gasoline or oil.
Any problems found should be corrected immediately. But how can you determine that the problem is in the carburetor? To do this, watch how your tool works.
Typical signs that the carburetor settings are off include:
- Unstable motor operation
As a rule, the reason for this is the use of the wrong (lean) fuel mixture.
- Excessive fuel consumption
It is expressed in an increased release of exhaust exhaust, which turns black. This means that fuel is not completely consumed, i.e. the mixture is oversaturated.
The carburetor is adjusted correctly - the saw starts the first time
- Arbitrary changes in engine power
May be associated with damage to the fastening of the adjusting screws or the protective cap.
- Increased fuel consumption accompanied by vibrations and pops
This indicates critical wear of the piston group, so adjusting the carburetor will only postpone major repairs for some time.
- Sneezing and engine jerking
This picture is observed when the carburetor channels are clogged or its filters are faulty. In this case, adjustment should be carried out only after thoroughly washing the unit.
Chainsaw fuel filter
Despite the fact that the carburetor is the most complex part of the engine, you should not be upset if you detect malfunctions in its operation. Instead, you need to arm yourself with some tools, a design diagram of the unit and sound logic.
Chainsaw carburetor being repaired