Chainsaw calm 180 high idle speed

Standard equipment for STIHL chainsaws

The basic package for the STIHL MS-180 chainsaw includes:

• universal screwdriver;
• tire 14 inches (35 cm);
• 50 link chain;
• tire cover;
• manual.

Chainsaw STIHL MS-180 16 Picco

The weight of the chainsaw is 3.9 kg. The engine is gasoline, carburetor, single-cylinder, 2 liters. With. There is also an easy start system, chain lock, and anti-vibration. Chain STIHL Oilomatic PICCO MINI 61 PMN, automatic lubrication system. The length of the tire is 40 cm. A compensator is mounted in the carburetor, which is responsible for fuel consumption, constant power of the chainsaw and the quality of exhaust gases.

Advantages of the STIHL MS-180 petrol saw

Let's talk about the features of the STIHL MC-180 chainsaw:

• lightness of a gasoline saw;
• productivity 2 l. With.;
• belongs to the “hobby class”;
• easy start Ergostart;
• fast chain tension;
• electronic ignition;
• four rubber shock absorbers to dampen vibration;
• Quik Stop chain brake;
• sprocket roller insulation;
• the carburetor is not adjustable (only the idle speed is adjusted, the engine speed is constant with factory settings);
• the presence of a stabilizing compensator;
• single lever control;
• the chain is strengthened;
• the presence of two compression rings on the engine piston instead of one;
• versatility of the saw:
• durability, reliability.
• noise during operation;
• high price;
• limited operating time per day.

The chainsaw “STIHL” MS-180 is a product of the famous German brand STIHL , founded back in 1921 by Andreas Stihl. Initially, the company was engaged in the production of washing machines and steam boilers. The first chainsaw (Germany) was born in 1929 and weighed 48 kg. with a power plant power of 6 liters. With.

Chainsaw STIHL 230 checking how many revolutions it turns

The units were improved, new design elements were added - a saw chain with cutting and scraping teeth, automated chain lubrication, a centrifugal clutch, a membrane carburetor, anti-vibration handles, a chain brake, etc. With each new invention, the weight of the saw decreased and its functionality increased. STIHL is also known as the manufacturer of the quietest chainsaws in the world.

Site visitors are often interested in how much a “STIHL” MS-180 chainsaw costs? The original STIHL 180 chainsaw Future equipment owners are also interested in where STIHL MS-180 chainsaws are assembled. This could be the USA, Germany and even China. Chinese counterfeits are quite common, but their prices are lower.

We invite you to watch a video that explains how to distinguish a fake from the original:

Calm Chainsaw High Idle Speed

Content

For what reasons does Shtil 180 stall at idle or full throttle?

Any tool can break, and the Stihl MS 180 chainsaw is no exception. Now let’s try to understand questions such as: why does the chainsaw stall when the speed increases, also at idle . Let's look at options for diagnosing and eliminating defects associated with this behavior of the Shtil chainsaw

180.

Why does a chainsaw stall when you press the gas?

Let's say the chainsaw operates normally at idle, but when you press the gas sharply it stalls. What is the possible reason? It’s immediately clear that the problem is not the ignition (lack of spark), because if the ignition was faulty and there was no spark, the tool simply would not start. This means the fuel system remains.

There are many defects in the fuel system that allows for accounting (software), and in order to determine a clear reason why the Shtil 180 chainsaw stalls when you press the gas, you need to carry out a full diagnosis of it. We advise you to read about the most common faults of the Shtil chainsaw

180 and eliminating these defects.

Filter check

The first thing you need to check is the fuel filter.

Sometimes, a filter clogged with dirt is unable to pass through the fuel mixture in sufficient quantities. Accordingly, a lack of fuel appears in the system, which leads to the fact that when you press the gas of the chainsaw, the fuel burns out, and the new one does not yet have time to arrive and, as a result, the Shtil chainsaw stalls. Also, if the fuel filter is clogged, there may be a noticeable drop in the power of the chainsaw at high speeds, but this is only with minor contamination.

Air filter

On the Internet, you can find information that the Shtil 180 chainsaw may stall due to severe contamination of the air filter. I would like to refute this incorrect information and say what it really is, that the Shtil MC 180 carburetor is equipped with a compensator, which was designed and installed if you set a goal to take in the air needed for the normal operation of the Shtil 180 chainsaw, bypassing the dirty air filter

. Naturally, the power with a clogged air filter will drop a little, but it definitely won’t stall. The power may also drop due to piston wear; here the Stihl MS 180 piston chainsaw will need to be repaired.

READ How to Cut Down a Tree with a Chainsaw. How to Cut a Tree in the Right Direction

Carburetor

One of the reasons why a chainsaw does not develop speed when you press the gas, but rather stalls, is a malfunction of the carburetor. Let’s say the Shtil 180 saw worked properly, and after it was installed, it was not used for a long time. After starting it, it works fine at idle, but when you press the gas it can stall. Why does it stall? The reason is a stuck carburetor valve nozzle. Naturally, this is not 100%; unfortunately, the possibility of such a malfunction is extremely high. We recommend reading the article about the design and repair of the Shtil 180 carburetor.

If you set a goal to check the nozzle, you need to remove the carburetor and disassemble it. To remove, you need to unscrew the two nuts securing the air filter and the carburetor, then remove the air filter and the engine control lever, while disconnecting the air damper control rod from the carburetor. Next, you just need to slightly pull the carburetor towards you and disconnect the fuel supply hose.

It is necessary to very carefully remove the fuel hose, and prepare a plug here in advance, since with its use fuel must flow.

Having removed the carburetor, it must be blown out and cleaned of dirt, only after this there is an option to unwind the carburetor.

You need to unscrew the cover of the main chamber of the carburetor; this is the one on which the compensator is installed on top. Next, use an 8 mm bolt and a length of more than 50 mm. We knock out the valve.

Chainsaw Stihl MS 180 tasks with speed

Chainsaw Stihl

The MS 180 has certain aspects that make owners worry and is expensive.

The Calm 180 MS does not slow down.

With the carburetor screw turned to zero, huge revolutions

.Change bearings and seals.

You need to knock out the valve by placing the carburetor on a wooden stand, this will protect it from damage to the body.

When the nozzle is removed, you can blow it out using a compressor. The valve must allow air to flow exclusively in one direction; if, of course, the valve is free to blow in both directions, it means it is faulty and needs to be replaced with a new one. If the valve has been repaired, you must reassemble the chainsaw in the reverse order of disassembly.

You can clearly see how a carburetor is repaired, or more precisely, how to correctly knock out the injector valve from the carburetor body by watching the video.

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The next common reason why a saw may stall when the speed increases is air leaking into the carburetor. This can only be checked with a special tool, but it is worth seeing that if preventative work on the carburetor has not been carried out for more than one year, then there is an option to install a new set of gaskets in the carburetor. Sometimes this helps solve the problem of its depressurization.

When disassembling the carburetor to change the gaskets, you need to closely examine its needle valve, press on the rocker arm and check its lifting. From time to time, especially if chainsaw has been standing for a long time with fuel in the carburetor, the needle may burn to the carburetor body and not do its intended purpose. Simply put, the needle valve will not allow the fuel mixture to pass through. Here, the saw doesn't work.

Why does it stall at idle?

The first and most common cause of this malfunction is incorrect carburetor adjustment. Of course, you can adjust the idle speed without the help of others; for this purpose you need to have a Stihl adjusting screwdriver, which is supplied with the unit. The adjustment hole is located on the right side of the Shtil 180 saw on the handle and is marked with the signs “-” and “”.

If the Stihl chainsaw does not maintain speed and stalls at idle , you can be virtually 90% sure that it has a malfunction in the fuel pump operating system, usually this is air leaking into the crankcase through the pan gasket, or, more often, through the crankshaft oil seals. The air intake reduces or completely stops the pulse, which is supplied through special channels to the fuel pump of the chainsaw. Upon completion of this, the Stihl 180 chainsaw does not receive the required amount of fuel and stalls at idle.

Conduct diagnostics, of course, using a special device called a vacuum gauge.

The second method to check the performance of the oil seals is to pour gasoline into the engine crankcase and see if the oil seals allow gasoline to pass through, which means they are providing normal pressure in the crankcase, which will make idling impossible. And during operation at high speeds, with leaky oil seals, there is a possibility of jamming of the crankshaft bearings.

The method for checking the crankcase and seals Shtil 180 for tightness is as follows:

1. The top cover is removed.
2. The air filter housing and carburetor are dismantled.
3. The chainsaw handle is removed.
4. The starter spins up and retracts.
5. The side cover and drive sprocket are removed from the side opposite the starter.
6. A piston stopper, as it is also called, is installed in the spark plug hole; a cord from an old starter with knots tied to it is stuffed into the cylinder.
7. The flywheel and clutch are unscrewed, after which the parts are removed. It is worth knowing that the chainsaw clutch has a left-hand thread and unscrews clockwise.
8. The oil pump drive gear is removed.

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Having disassembled the Stihl MS 180 chainsaw, we find the seals; after this fact, you need to fill the crankcase with gasoline and check for leaks. Fill the crankcase, of course, through the fuel window in the cylinder; for this purpose the piston must be raised very high. If leaks are detected, the defective seals need to be replaced, in other words, the pan must be sealed again. You can assemble Shtil 180 by following the reverse sequence of the method.

Why does it stall at full speed?

We often hear the question why a chainsaw stalls at full speed. There may be several circumstances. That's all, you need to take into account exactly how the saw stalled. Let's say the tool was working normally and suddenly, without apparent circumstances, it suddenly stalled and in this case the starter does not turn over. Under these circumstances, there is an option to be 100% sure that the chainsaw is jammed and it is necessary to begin serious repairs.

The second situation is when the Shtil 180 chainsaw was working normally, then gradually over a short period of time it lost power and stalled, while overheating of the cylinder was observed. Then, most likely the reason is air leakage under the rubber pipe connecting the carburetor to the cylinder or its rupture. The mixture became lean, resulting in overheating. Remove the cause, of course, by changing the pipe.

Conclusion

If the chainsaw is Stihl

The MC 180 stalls at idle, does not gain power when you press the gas, or even stalls at full speed, you need to diagnose the fuel accounting system and inspect the crankcase for tightness. You can do this without the help of others, but you need to have certain abilities. If you are not very familiar with push-pull saws, it is better to turn to specialists, since this technique is quite capricious and any mistakes are expensive.

Source

History of the company, the difference between the original and the fake

The German company STIHL was founded by Andreas Stihl in 1921 in Germany. The first chainsaw of this company was released in 1929. The unit weighed about 48 kg and was serviced by two operators. STIHL engineers continued development aimed at improving this unit. Over the long period of its existence, the first chainsaw model has changed greatly and decreased in weight, and also received many useful additions:

• the chainsaw chain was equipped with special cutting and scraping teeth;
• a system for automatically supplying chain lubrication was put into operation;
• received a centrifugal clutch;
• installed the first membrane-type carburetor;
• the gas-powered tool received special spring-mounted handle mounts that protect the operator from vibration during operation;
• chainsaw was equipped with additional protection that acted as a chain brake.

Attention, fake!

There is also sad news: every technique that is in demand among consumers, after a certain time, becomes counterfeit. Counterfeits come to us from China and, although they bear brand logos, they do not at all meet the declared (expected) quality. Fortunately, knowledgeable people have even learned to visually recognize the substitution.

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They are ready to share this video information on the Internet, but we will describe these signs in the article.

• casting is rough, porous, low quality;
• body color is dull;
• The air filter screw is located at the top of the chainsaw. instead of the required end position of the original product;
• the shape of the caps of the fuel and oil tanks is also different: on the original saw, the caps are made to fit the screwdriver included in the kit, on the fake they are simple, slightly convex;
• serial numbers are completely missing;
• The chain brake is attached on one side, while the original “STIHL” MC 361 chainsaw has a double-sided mount.
• The fake chainsaw has a simplified carburetor without a built-in compensator:
• Non-original spark plugs are used without the corresponding STIHL .

In order to verify the authenticity of the STIHL MS 361 chainsaw, it is recommended to look at the instructions - it will also differ significantly from the original, which can be found on the Internet.

Well, the last check is

Description and characteristics of the STIHL MC 361 chainsaw

chainsaw is a professional tool used in gardening for caring for fruit trees, no less in demand in landscape design, used for fuel procurement, with functional attachments in construction and the national economy, and can also be used for felling forests. The chainsaw weighs 5.6 kg as standard. Carburetor two-stroke engine “Shtilevsky” with a declared power of 4.6 liters. With. Starting is done with a manual starter. For an easier start, a decompressor is built in. Ignition is contactless.

The diaphragm carburetor is equipped with a compensator that optimizes engine speed and ensures more complete combustion of fuel, and therefore cleaner exhaust. The engine speed adjustment in the carburetor is factory-set, but the idle speed can be adjusted independently. For work in the cold season, heating of the carburetor and handles is provided. The muffler is equipped with a spark arrester grille. The carburetor is equipped with an accelerator fuel supply pump.

The tensioning mechanism is placed on the side, the bar is attached to the chainsaw with 4 bolts, the chain tensioning mechanism is simplified and accelerated. Access to the star is limited. Oil is supplied to the chain point-by-point in automatic mode. The STIHL MS 361 chainsaw can be fitted with tires ranging in size from 37 to 50 cm. The chain pitch is ⅜ inches. To counteract jamming of the cutting unit in the wood, side stops are provided.

A special shock absorber system protects the owner of the equipment from excessive vibration. In order to increase operational safety, the manufacturer provides an inertial brake and a chain catcher (in case of a broken chain). There is a shaft plank.

There are several modifications of the STIHL 361 chainsaw:

• basic model MS 361;
• improved modification with heated handles MS C 361, its weight increased to 5.8 kg.

Chainsaw “STIHL” 361 technical specifications

Chainsaw STIHL MS 440 – tool capabilities

The portable chain saw in this professional configuration is distinguished by its fairly high power and, at the same time, low fuel consumption. The model is equipped with metal parts that are resistant to high loads and corrosion.

The STIHL 440 chainsaw is equipped with a durable 2-stroke internal combustion engine with a chrome-plated cylinder with a volume of 70.7 cm3. To start the built-in motor, this garden tool is equipped with a proprietary ventilated starter and a decompression valve.

STIHL chainsaw include:

• petrol engine power – 5.4 liters. s./4 kW;
• possible tire length – 40–45 cm;
• pitch of the installed chain – 3/8 “;
• weight – 6.2 kg.

The original delivery set of this STIHL model includes detailed operating instructions, a universal key for maintenance, as well as a proprietary saw set. The manufacturer of this model is China.

Calm 180 High Speed ​​Idling

The chainsaw stalls at idle speed: owners of this tool probably encounter this problem. By its design, the saw is a fairly lightweight tool. But there are times when it burns out. The main problem in troubleshooting is determining the correct cause of abnormal operation . Once the cause is identified, eliminating the defect is usually quite simple.

Circuit diagram of a chainsaw.

Content

Probable reasons for failure

The power unit of all chainsaws is a single-cylinder internal combustion engine. Devices of this type are characterized by such malfunctions as violations of intra-cylinder compression, changes in the fuel mixture ratio, incorrect ignition operation, and low-quality fuels and lubricants. The main problems in the operation of the power unit are the following:

• The engine runs stably at minimum speeds, but stalls when the speed increases;
• Starting occurs normally, but idle speed
  is unstable and stalls quickly;
• Doesn't start.

Electronic ignition circuit for a chainsaw.

Abnormal idling

may be caused by various reasons. They can be divided into several positions:

• Reduced filter capacity (gasoline and air);
• Abnormal operation of the ignition system:
• The carburetor settings changed spontaneously;
• Malfunction of fuel line elements;
• Exhaust channels and muffler clogged;
• Defects of the piston, cylinder, valves.

Repairs should begin with an external inspection and checking the presence of fuel in the tank.

Checking and repairing filters

The engine may run rough or stall if there is not enough fuel or air. Causes: clogged air or fuel filter. To check the fuel filter, you need to remove the fuel line hose from the carburetor fitting and direct it into a container. Then press the fuel pump several times. If the fuel is pumped normally, in clearly defined doses, without dirt, then the fuel filter is working properly. If the stream is weak or fuel is not pumped at all, the filter needs to be replaced or, if possible, cleaned.

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Clogging of the fuel filter with sawdust is one of the reasons for chainsaw breakdowns.

The device must be removed from the fuel tank (after draining all the fuel from it). On most models, the fuel filter can be pulled out with a wire hook through the neck. If the filter design is dismountable and can be cleaned, it must be disassembled and washed in accordance with the manufacturer’s recommendations. Otherwise, replace it with a new filter.

Similar problems can arise when the air filter is clogged with dust, sawdust, or dirt. If there is insufficient air, the fuel mixture will be enriched and the fuel combustion process will be difficult.

To check, remove the filter. During operation, precautions must be taken to prevent dust from entering the carburetor. The device must be cleaned and rinsed in warm water with added detergent. After drying, if possible, blow with low-pressure compressed air and reinstall. If the chainsaw works normally, then the cause has been eliminated; if not, you need to look further.

If the tool is used continuously, it is recommended to replace the filters of the fuel and air systems after 3 months.

The Calm 180 MS does not slow down.

When the carburetor screw is turned to zero, the speed is high

.Replacement of bearings and seals.

Checking the spark plug and ignition system

According to manufacturers' recommendations, the spark plug should be changed annually, regardless of the intensity of use of the tool. Failure to follow these tips leads to a completely natural result: failures at idle speed and subsequent failure.

Typical ignition system

the following:

Faulty chainsaw spark plugs.

1. The spark plug was filled with fuel at the time of start-up. It is necessary to remove it from the socket, dry it, and, if possible, blow it with compressed
   air.
   Drain the remaining fuel from the cylinder through the installation hole and blow it out with compressed
   air. Then install the spark plug, connect the high-voltage wire, and start it.
2. No spark at the spark plug electrodes. You need to disconnect the high-voltage wire and check for a spark on it. If the spark is normal, check the connection and eliminate any defects found. The absence of a spark on the high-voltage wire indicates a malfunction of the ignition unit. This device cannot be repaired; it must be replaced with a new one.
3. The gap between the spark plug electrodes is broken. This parameter for different types of devices can range from 0.2 to 0.5 mm. Checking and adjustments must be performed using a special probe or caliper. The required value can be found in the operating instructions for the tool.
4. By the appearance of the candle, you can determine the direction of the search. If the spark plug turns out to be dry after several attempts to start the engine, it means that gasoline is not entering the cylinder. It is necessary to check the fuel supply system and carburetor.
5. The presence of black soot or carbon deposits on the electrodes indicates incorrect carburetor adjustment or a clogged air filter. Possibly low-quality fuel with a high oil content is used. During normal operation of the ignition system, the electrodes have a uniform gray color and a brown coating on the insulators.

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Carburetor check and repair

The operating principle of a chainsaw carburetor.

If checking the ignition system, fuel filters, and muffler did not produce tangible results, the tool still does not want to work normally at minimum speed, you need to check the carburetor.

To adjust the operating modes, there are three screws on the device body designed to set the minimum rotation speed, maximum speed and idle speed.

On many models, manufacturers install only the idle air adjustment screw to avoid incompetent attempts to adjust the device. In all versions of the device, adjustment must be performed exactly according to the manufacturers' recommendations.

If adjusting the device does not restore normal operation of the instrument, you need to completely disassemble the device and inspect it. It should be understood that a carburetor is a rather complex device; if you lack experience, it is advisable to contact specialists.

When disassembling, it is important to carefully inspect and wash all jets, air and fuel channels, and filter mesh. Damaged elements must be replaced with new ones. The jets must be cleaned with soft wire of the appropriate diameter.

It is advisable to carry out work in appropriate conditions. The carburetor contains many small parts, the loss of any of them will render the device inoperable.

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Muffler inspection and repair

Calm 180 high idle speed

Clogged mufflers should be left to soak in warm water and detergent, then wiped thoroughly and dried.

A malfunction of the muffler leads to a drop in the power of the tool during operation and stops in idle mode. Despite the apparent simplicity of this detail, it is also important to keep an eye on it. Quite often the muffler becomes clogged. During operation, it is possible that wood dust, sawdust, and resin particles may get on the grate. High temperatures cause them to stick and accumulate; exhaust gases also form deposits on the surfaces of the spark arrestor and other parts. The layer that increases over time reduces the throughput of the muffler and interferes with the normal removal of exhaust gases. The engine, figuratively speaking, is choking.

Repairing this unit is not difficult and is within the capabilities of many tool owners. The device should be removed from the engine, the holes should be covered with a rag or other material. If the resulting layer is too hard, all parts can be left to soak in warm water and detergent. After the plaque has softened, the parts should be washed with a rag or soft brush and wiped thoroughly. Inaccessible areas can be blown with compressed air or dried with a hairdryer. The use of mechanical means of removal is not advisable.

For normal operation of the muffler over a long period of operation, you should use lubricants recommended by the manufacturer, monitoring their expiration dates. The mixture must be prepared immediately before work and consumed completely.

Conclusion on the topic

Chainsaws, like most tools, require timely maintenance and care.

Source

STIHL chainsaw oil

Another important factor is the motor oil for the gasoline saw. Its quality and composition play one of the main roles during engine operation, so the choice of lubricant must be taken with special responsibility.

To dilute gasoline for a STIHL chainsaw, you need to choose oils with the following properties:

• the presence of anti-corrosion, lubricating and anti-wear qualities - for this, the motor oil must contain special additives, which are indicated by the manufacturer of the lubricant on its container;
• ability to quickly dissolve in gasoline and purify fuel from harmful impurities;
• the formation of a minimal amount of resin during combustion - high-quality lubricant burns almost completely, leaving no traces of ash and soot. When burned, poor quality oil, on the contrary, emits clouds of dark smoke, which contains large amounts of substances harmful to the environment.

In order not to make a mistake when choosing, it is best to give preference to branded motor oils of the STIHL . They are made on a semi-synthetic or synthetic base and contain those additives that are needed to protect the engine and extend its service life.

Chainsaw STIHL MS 181 – model advantages

Among the advantages of this chainsaw, the branded reinforced tire made of high-quality metal alloy stands out. An automatic oil pump is responsible for lubricating the headset, the operation of which can be adjusted.

STIHL chainsaw parameters include:

• petrol engine power – 2 l. s./1.5 kW;
• possible tire length – 25–30 cm;
• pitch of the installed chain – 3/8 “;
• weight – 4.1 kg.

READ Filter for Chainsaw Shtil 180

For the safety of the operator during operation of the model, the manufacturer equipped it with a durable inertia brake.

Why does the chain break on a STIHL chainsaw?

The main cause of this common problem is that the tension on the saw element is too high. As a result, the chain cannot withstand the load and breaks. In this case, re-tensioning the headset will help solve the problem. A properly installed and adjusted chain should have about 5-7mm of slack when pressed with your index finger.

The second reason for the malfunction is insufficient oil. If the chain is not lubricated, then over time it becomes stiffer and breaks. In this case, you will need to carefully inspect the oil pump and, if necessary, replace it.

Chainsaw Shtil MS 180 – technical specifications

The high efficiency of the Stihl model in the garden was achieved thanks to decent factory parameters.

Chainsaw features include:

• petrol engine power – 2 liters. s./1.5 kW;
• factory cylinder volume – 31.8 cm3;
• the permissible length of the tire used is 30–35 cm;
• fuel consumption – 200 ml/h;
• the pitch of the chain used is 3/8 “;
• weight including saw set – 4 kg.

The advantages of a chainsaw from the German brand Stihl include a low noise level, which, when the factory engine is running under maximum load, does not exceed 105 dB.

Adjusting the STIHL chainsaw carburetor

It is necessary to adjust the carburetor of a chain saw when the engine is unstable, as well as a sharp increase in the volume of fuel consumed and exhaust gases emitted.

Setting up the STIHL chainsaw carburetor is performed in the following sequence:

• First, on a chainsaw with the engine turned off, you need to turn clockwise until it stops those 2 screws that are marked with the letters H and L. After this, both of these screws need to be slowly turned one by one one full turn in the opposite direction;
• Next, you need to quickly start the STIHL chainsaw and warm it up. As soon as the body of the tool becomes warm, you need to press the gas lever and, by turning screw H, achieve the motor speed, which will be 14,000 rpm. In this case, it is prohibited to hold down the gas lever for more than 10 seconds;
• After this, you will need to start turning the LA bolt one by one until the chain stops rotating along the bar. Then the LA bolt must be turned a quarter turn in the opposite direction.

At the end, you need to turn off the engine of the STIHL chainsaw and start it again. If the engine is unstable at low speeds, then you need to slowly turn screw L counterclockwise. Then you need to turn the LA bolt to the position at which the engine idle speed will be 2800 rpm.

There is no spark on the STIHL chainsaw - repair procedure

A standard spark plug is responsible for the formation of a spark in every STIHL chainsaw. If it malfunctions or breaks, the garden tool you are using will not start. To solve the problem, you need to clean the part from ash and carbon deposits.

If after cleaning the spark plug it still cannot produce a spark, the part will need to be replaced.

Chainsaw STIHL 180 checking how many revolutions it turns

Reference!

Adjusting the carburetor of the Shtil chainsaw will be required when the properties of the fuel change, the altitude above sea level, when the Shtil chainsaw is in use (air rarefaction), and also when the atmospheric pressure, temperature and humidity change. Adjusting the chainsaw carburetor allows you to achieve good chainsaw performance when external operating conditions worsen. Also, adjusting the chainsaw carburetor helps prevent oil starvation and engine breakdown due to insufficient lubrication entering the cylinder with a lean fuel consistency.

Chainsaw calm idle speed adjustment video.

Tip: To check the density of the motor, it is great to use a special device, i.e. special pump with pressure gauge. First, you need to remove the carburetor on the chainsaw, and install a sealed plate plug with a flange on the inlet window of the cylinder to connect the hose from the pump. There is also an option to place the spark plug on sealant for tightness. You also need to remove the muffler and install a sealed plate with a rubber gasket on the cylinder exhaust window. Then you need to put the piston at top dead center and connect the hose from the pump to the flange. Next, you need to pump air into the engine to 0.9 atm. and look at the pressure gauge needle - if it stays in one place, it means the piston engine is sealed. Then we release the air, switch the device (pump) and begin to pump out the air from the cylinder, creating a vacuum in the engine with a pressure gauge reading of 0.5 atm. We look at the pressure gauge needle - if it is in the workplace, it means there is no air leakage through the oil seals, or other seals in the engine (which aggravates the operation of the chainsaw and does not make it possible to correctly adjust the chainsaw carburetor). In this way we check the engine for air leaks and compression.

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STIHL chainsaw device

Each model of the STIHL is based on a 1-cylinder 2-stroke gasoline engine running on a fuel mixture of gasoline, grade no lower than AI-92, and motor oil. A proprietary carburetor equipped with a STIHL compensator and three jets for the ability to independently adjust the unit is responsible for enriching the fuel with air and its further supply to the internal combustion engine cylinder in the chainsaw device of the German company. An anti-vibration system is responsible for damping vibrations transmitted from the crankshaft to the handles of garden tools.

For continuous connection of the motor with the saw set, each STIHL gasoline chain saw is equipped with a durable clutch system, the drive sprocket and other parts of which are designed for operation in the most difficult weather conditions. The ignition of each model is electronic, consisting of a coil and a spark plug.

All internal mechanisms and spare parts of STIHL garden tools are housed in a durable multi-layer plastic case. It consists of individual plates that can be removed to repair the faulty unit. The controls and switches necessary for control are located at the rear of the case. In its middle part there is only a lever for turning on and off the inertial brake. For more convenient operation of garden tools, the manufacturer equipped them with two metal handles coated with anti-slip rubberized material.

Proportion of oil and gasoline for Shtil 180 chainsaw

To prevent premature failure of the carburetor, factory cylinder-piston group and other important components of garden tools, it is important to maintain the ratio of gasoline and engine oil used.

First of all, you need to study the company manual. The operating instructions will indicate the correct fuel proportion, suitable gasoline, as well as suitable oil for lubricating the chain of the Shtil 180 chainsaw.

According to the manual of the German Stihl saw, to refuel it you need to use only gasoline of a grade not lower than AI-92, as well as branded oil for Stihl 2-stroke engines. The ratio of fuel and oil should be 1:40, that is, 25 ml should be added to 1 liter of gasoline. The fuel mixture will need to be thoroughly mixed by shaking the container several times. After this, the contents of the vessel will need to be poured into the fuel tank.

Who to give preference: China or Germany

Despite the fact that the build quality of the cutting tool is almost identical, there are still differences between the saws. The key feature of the Chinese chainsaw is the not very good quality of the materials used in the production process. This is especially noticeable if you compare, for example, air filter housings: Chinese ones are made of cheap plastic and this is noticeable to the naked eye.

It is also worth noting that some chainsaws made in China have the following disadvantages:

• the starter spring quickly loses its elasticity, which has a bad effect on retracting the starting cord;
• The saw bar does not perform its functions very well.

At the same time, the Chinese STIHL has a number of advantages:

• the price of the tool is lower, and the warranty period is the same.
• some models are no longer produced in Germany, for example, the STIHL 660, but the Chinese plant continues to produce this widely popular tool and its components.

If you use the saw strictly for its intended purpose, in other words, do not try to cut down wood with a garden chainsaw and maintain it on time, then it is difficult to notice the difference between production in China or Germany.

Running in a STIHL chainsaw

A new STIHL chainsaw needs proper running-in. During this time, the parts of the motor and other moving parts of the garden tool will be filled with lubricant and will have time to get used to each other.

READ Do-It-Yourself Repair of Husqvarna 365 Chainsaw

You need to break in a STIHL chainsaw in this order:

• First, the operator will need to prepare the fuel mixture and pour it into the appropriate tank. A separate reservoir for chain lubrication must be filled with fresh oil;
• After this, with the inertia brake turned off, you need to start the standard engine of the STIHL chainsaw and let it idle for 15–20 minutes. In this case, the operator must perform gas control every 30–40 seconds. While pressing the gas trigger, you need to place a sheet of paper under the guide bar. If drops of oil appear on it when the chain moves, it means that the lubrication system of the bar and chain is working properly;
• Next, you can move on to sawing small wood. For this purpose, twigs and branches no more than 1 cm thick are suitable;
• After half an hour, the thickness of the wood needs to be increased and proceed to sawing larger branches;
• As soon as the fuel in the saw tank runs out, you will need to fill in a fresh mixture and start sawing large logs.

The German manufacturer advises running in chainsaws not only after purchase, but also after each long period of inactivity, for example, after winter. This procedure will help reduce the load on the main components of garden tools and prevent their premature failure.

MS 271

One of the most economical models, as it has very low fuel consumption. It is included in the middle price segment and is classified as semi-professional. It has a power of 2,600 W, a fuel tank of 0.5 liters, and a tire length of 50 cm. The device weighs just over 5 kg.

Here are the advantages of the STIHL MS 271:

• An excellent air filter reduces the emission of harmful impurities into the atmosphere by almost 70%.
• Vibration absorption system.
• Convenient access to the fuel tank.
• High efficiency of the tool.
• The automatic chain brake ensures a high level of safety.
• Low level of gas emissions into the atmosphere.

Chainsaws Shtil 180 - malfunctions and repairs

The simplicity of the Stihl MS 180 household chainsaw allows its owner to eliminate most of the tool’s malfunctions with his own hands. To successfully repair a model, you first need to determine the causes of the breakdown. The repair algorithm is different in each individual case and depends on the type of malfunction.

Why won't the Shtil 180 chainsaw start?

The reason for the Stihl model not starting, in this case, is that the spark plug is flooded.

To fix the problem, you will need to disassemble the upper part of the tool and unscrew the spark plug. If a thick layer of carbon deposits has formed on the candle, it will need to be cleaned and dried. After this, the clean spark plug can be screwed back in.

What to do if the spark plug on the Shtil 180 chainsaw floods?

If the tool is used frequently, one of its fuel pipes may be torn, which will lead to fuel spilling onto the spark plug and other parts of the saw.

If the fuel tube breaks or a hole forms in it, the owner of the tool will need to remove the damaged hose and replace it with a new one. In this case, the junction of the new hose with the factory fitting must be carefully treated with sealant.

Oil does not flow to the chain of the Shtil 180 chainsaw

One of the main causes of the problem in which oil is not supplied is a breakdown of the pump that supplies oil to the saw set. To fix the problem, you will need to remove the bar and chain, and also dismantle the side protective plastic cover. After this, the area under the housing will need to be cleaned and the pump replaced.

If the chain is not lubricated, the cause of the breakdown may also be a break in one or more oil tubes. In this case, you will need to remove the hoses and replace them.

Chainsaw Shtil 180 stalls when you press the gas

In this case, the cause must be sought in a dirty air or built-in fuel filter. Over time, they become unusable as dirt accumulates on them. To fix the problem, you will need to clean or completely replace the filter parts.

Another reason for this breakdown lies in an incorrectly configured carburetor. The owner will need to first clean the unit from accumulated dust and oil residues, and also adjust it according to the manufacturer’s instructions.

Stihl 180 saw stalls at idle speed - how to solve the problem?

In this case, the cause of the sudden breakdown must be sought in the tool’s ignition system. Often, due to mechanical shocks, the gap between the flywheel and the factory ignition coil is broken, which leads to breakdown of the entire system. In this case, you will need to disassemble the tool and check the distance between the elements.

To adjust the clearance, you need to loosen the flywheel. After this, you will need to insert a template between the flywheel and the ignition coil and begin screwing the bolts back in. As soon as the flywheel comes into contact with the template, screwing in the bolts must be stopped.

Chainsaw Stihl MS 180 is difficult to start when cold

First you need to make sure that the spark plug is not flooded with fuel. If a thick layer of carbon deposits has formed on it, then the fuel system will need to be inspected. It could lose its seal as a result of a broken hose or a broken fuel pump.

If the spark plugs are fine, then you will need to check the air filter. As a result of intensive use of the chainsaw, it could become clogged or become unusable. In this case, cleaning the filter or replacing it will help.

The third element that could fail is one or more compression rings. They cannot be repaired and will need to be replaced.

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How to choose a chainsaw

The large number of chainsaws in the STIHL line will make even a professional confused. The manufacturer has done everything to ensure that his tool performs the work in the required area with high quality. The principle “the more powerful and larger the saw, the better” does not work in this case.

To accurately choose a STIHL chainsaw for yourself, you need to decide in advance the answers to the following questions:

• What work will be performed.
• Volume of tasks performed.
• Material processed using a tool.
• How long is the continuous operation of the tool required?
• Climatic conditions for sawing.
• If work is planned to be carried out indoors, the presence of ventilation and sound insulation plays a significant role.

When purchasing a STIHL chainsaw of a certain segment (household, professional or semi-professional), you need to remember that their technical characteristics do not imply further attempts to increase power, speed or cutting volumes through independent modification of the equipment. Any attempt to use unsuitable tires may result in tool failure at best (warranty void in such circumstances) or serious injury or disfigurement at worst.

MS 170

This is a compact household model that is very popular among users. It has a low price and quite wide functionality. It is recommended to use it to solve current issues at the dacha or in an individual home.

Here are the main advantages of this tool:

• Power 1,300 W.
• Fuel tank 0.25 liters.
• Tire length 40 cm.
• Weight only 4 kg.
• Ease of use.
• Good balancing.

However, there are several disadvantages to this tool:

• Over time, the chain stretches greatly and becomes unusable.
• The key bracket is not included in the basic configuration.
• Quite strong vibration.

How many revolutions does a chainsaw have?

Content

Do-it-yourself chainsaw carburetor adjustment

For an independent carburetor option, you need to familiarize yourself with its structure and understand the procedure for the work that is carried out to adjust the parts responsible for the proper functioning of the components of the device and parts close to it.

It is necessary to carefully handle items for the system option, and also to determine whether the set characteristics correspond to very acceptable values.

About the carburetor design

The carburetor serves to mix the flammable mixture with air while maintaining predetermined proportions. If clear doses are not followed, the proper operation of the engine is at risk. When a huge amount of air enters during mixing of the components, but there is not enough fuel, then such a mixture is considered “lean”.

Oversaturation should not be allowed, because with a larger amount of fuel compared to air, malfunctions or engine wear are also likely. Carburetor adjustment is needed not only before initial use, but also when any differences in its operation are detected. Before starting to work with a chainsaw, do not forget to run it in.

Carburetor components

The carburetor design contains a standard set of parts, but may vary slightly depending on the manufacturer. Components:

1. The basis . This is a special tube that is visually similar to an aerodynamic design. Air passes through it. In the transverse direction, a damper is located in the middle of the pipe. Its position can be changed. The more it is extended into the passage, the less air enters the engine.
2. Diffuser . This is the constricted part of the tube. With its help, the air supply speed increases precisely in the segment from which the fuel comes out.
3. Channels for fuel supply. The fuel mixture is contained in the float chamber, then passes into the nozzle, from which it flows into the atomizer.
4. Float chamber . It is a separate structural element, reminiscent of the shape of a tank. Designed to constantly maintain the optimal level of fuel fluid before entering the channel from which air enters.

Don't know which chainsaw to choose? Read our article.

Are you looking for cheaper models, but reliable and time-tested? Pay attention to Russian-made chainsaws.

Or explore foreign chainsaw manufacturers such as Shtil.

What you need to have for setup

Each carburetor owner must have the necessary tools to adjust this system. There are three adjustment screws that are located on the body of the device. They have their own markings:

• L - screw for correcting low speeds.
• H - screw for adjusting high speed.
• T - regulates idle speed, in most cases used for experiments.

Chainsaw air filter

READ Chainsaw Test. Comparison of Popular Models.

Before adjusting the carburetor, you need to prepare the device:

1. The engine warms up, that is, it starts about 10 minutes before repairs, and turns off when starting work (see how to start a chainsaw).
2. The air filter is checked and washed.
3. The chain is stopped by turning screw T until it stops (see chain oil).

To carry out a safe repair, you need to prepare a flat surface where you can carefully place the device and turn the chain in the opposite direction. Need a tachometer. It determines whether there is a malfunction in the carburetor. When turning the screws, the sound should be perfect and absolutely smooth. If you notice squealing notes, the mixture is oversaturated.

Setup instructions

Carburetor adjustment is divided into two main stages. The first one is called basic. It is performed with the engine running. The second is performed when the engine is warm.

To carry out the carburetor setup procedure successfully, you need to read the operating instructions for a specific model in advance to identify additional features of setting up the device.

First stage

The adjusting screws for the highest and lowest speeds should be moved clockwise until the highest resistance is met. When the screws reach the stop, you need to move them in the opposite direction and leave them 1.5 turns.

Main stage

Chainsaw STIHL 180 checking how many revolutions it turns

In this video we will answer the question of how to set up or adjust a chainsaw

with your own hands

Chainsaw STIHL 230 checking how many revolutions it turns

Adjusting the chainsaw

DIY Champion 254. Initial carburetor adjustment shown

The engine is turned on at medium speed and warms up for about 10 minutes. The screw responsible for adjusting the idle speed should move clockwise. It is released only when the engine reaches stable operation mode. It is necessary to ensure that the chain does not move during this process.

In idling mode, the engine may stall (the reason is here). In this case, you must immediately turn the adjusting screw clockwise until it stops. Sometimes the chain starts to move. In this case, turn the adjusting screw in the opposite direction.

Checking acceleration operation

Need to do a little research. Acceleration of the device is initiated. It is necessary to evaluate the proper operation of the engine during maximum speed. When the engine is functioning correctly, it means that when you press the accelerator, the speed quickly increases to 15,000 rpm.

READ Chainsaw Stalls Under Load

If this does not happen or the increase in speed is too slow, you must use the screw marked L. It turns counterclockwise. Moderate movements must be observed, since the turn cannot be more than 1/8 of a full circle.

Maximum number of revolutions

To limit this indicator, you need to use a screw marked H. To increase the number of revolutions, turn it clockwise, and to reduce them in the opposite direction. The maximum frequency should not exceed 15000 rpm.

If you make this figure larger, the device’s engine will wear out, which will lead to problems in the ignition system. When rotating this screw, you need to take into account the ignition processes of the device. If the slightest malfunctions appear, then the maximum speed value must be reduced.

Final check at idle

Before this procedure, it is necessary to carry out a full adjustment of the carburetor components when operating at maximum speed. Next, you should check the functioning of the device in idle cold mode. When the correct adjustment parameters are achieved, you will notice that the carburetor design closely matches the following criteria:

1. When the idle cold mode is activated, the chain does not move.

Chainsaw accelerator

1. When the accelerator is pressed even slightly, the engine accelerates at an accelerated pace. With gradual deepening of pressure, you can notice that the engine speed increases proportionately, reaching the maximum permissible values.
2. When the engine is running, you can compare its sound to a four-stroke device.

If violations are noticed in the given parameters or the device has not been fully adjusted, you need to perform the main setup step again. Sometimes actions are performed incorrectly. In this case, the device may fail due to the loss of the correct node settings. In this case, you will have to contact a specialist.

Disassembling the carburetor if necessary to check or repair components

The design of different carburetor models is almost the same, so when working with them you can use the standard scheme. All elements must be removed carefully, and then laid out in the order given below , so that you can successfully place the items in place after the completion of the repair work.

Removing the Top Cover

1. The top cover is removed. To do this, you need to unscrew the 3 bolts holding it in a circle.
2. The foam rubber is also removed, since it is the upper component of the filter that conducts air.
3. The fuel hose is removed.
4. The drive thrust is output directly to it.
5. The cable end is disconnected.
6. The gasoline hose can be completely removed if you systematically pull it off the fitting.

To finally prepare the carburetor for major repairs or replacement of the smallest parts, you need to carefully disconnect it from the main system . Sometimes further disassembly is required. You should unscrew the components carefully and put the fasteners in groups, as these small parts are easily lost.

READ Sharpening Chains for Chainsaws in Swao

Instructions for Chinese

To correctly configure the carburetor of a Chinese chainsaw, you must first remember the factory settings of the device, then turn on the engine. Subsequently, you will have to leave it running for several hours in order to accurately set your own parameters. Sometimes work is carried out only after ten minutes of engine operation, but many Chinese-made models require special handling.

Chinese chainsaw model

Adjustment procedure:

1. Activities begin in idle mode . Using the adjusting screws, you need to achieve a systematic increase in engine speed, so you should first let it run at low speeds. A deviation from the norm is the movement of the chain along the bus. In this case, you need to adjust the outer screws to the optimal position so that the chain remains motionless.
2. The transition to medium speed speed is carried out . Sometimes the engine starts to smoke. This defect can be eliminated by tightening the screw to supply a leaner fuel mixture.

In this case, the smoke will disappear, but the engine speed will increase. You need to adjust the settings until you reach a level where, when you press the throttle, the engine smoothly picks up speed, and no sudden jerks or interruptions are heard.

• The device's engine is being checked . The chainsaw is switched to minimum speed, and then the lever is quickly pressed. When pressed maximally, it is held for 3 seconds. If there are problems with the engine, you need to gradually loosen the screw until the optimal position is reached.
• The chainsaw should work for several hours in real conditions . You need to cut wood, and then inspect all the elements involved in this event. If there are deviations, they must be corrected using adjusting devices. When all defects have been eliminated and the optimal settings have been established to supply correctly concentrated fuel, the device setup process can be considered complete.

Take a look at the video:

Conclusion

In order for the chainsaw to work properly, you need to carefully carry out the work of adjusting the carburetor in exact accordance with their order. If any malfunctions occur in the operation of the device, you must completely disassemble it yourself. In most cases, replacement of any parts that have become unusable is required.

By constantly checking the quality of carburetor settings and taking timely actions to improve its operation, problems with the chainsaw will not arise.

Read about which chainsaw to choose here.

Startup procedure

Smoothly pull the starter cable out by the handle until it stops. Then forcefully pull the starter handle up several times while pushing against the tubular handle.

• The engine will run for a short time and stop. Move the throttle by moving the mode lever up to the next detent.
• Repeat step 6. If the engine turns on, you need to briefly press the gas control lever. This is necessary to ensure that the combination lever is locked in the idle position.
• Release the brake by pulling the handle towards you until it clicks. The unit is ready for use.
• To check the lubrication system, hold the saw over something light (snow, paper, cut of wood) and turn on the maximum gas. If the system is working properly, traces of oil stains will be visible.

STIHL MS 180 HOW TO ADJUST THE CARBURETOR \How to adjust carburetor STIHL chainsaw MS 180

How to start a Shtil 180 chainsaw?

You need to start the Stihl chainsaw in the following order:

1. First of all, you need to turn on the inertia brake by pulling its plastic lever away from you;
2. Next, you need to carefully remove the protective plastic cover;
3. Then you will need to press the standard fuel pump button. Thanks to this, fuel will enter the cylinder and it will be easier for the starter to start the engine;
4. Next, the combination switch must be set to the permissible position designated “Cold start”;
5. Then, grab the Stihl saw with both hands and slowly pull the plastic lever of the built-in factory starter until resistance is felt. Immediately after this, you need to quickly pull the starter lever toward you several times until the standard engine starts and stalls;
6. At the end, you need to pull the inertia brake lever towards you and start working with the tool.

Read also: Single-cylinder four-stroke engine operating principle

” When breaking in your Stihl MS 180 saw, it is important not to allow the engine to run at maximum speed, as this may lead to the formation of burrs on the surface of the cylinder. Also, during the break-in process, it is not recommended to use motor drills, bark beetles and other common chainsaw attachments.

STIHL chainsaw malfunctions - causes and solutions

Most often, STIHL gasoline saws break down due to improper daily use, poor fuel quality or improper fuel mixture proportions, as well as mechanical damage. You can fix some problems with garden tools yourself. To do this, you need to find the worn part and replace it.

Sources:

https://fermerinform.ru/benzopila-shtil-361/ https://pro-traktor.ru/benzopily/STIHL.html https://armatool.ru/benzopily-stil-istoria-obzor-modelej-ustrojstvo-i -technologii/