DIY carburetor repair calm 180

In detail: do-it-yourself repair of the calm 180 carburetor from a real master for the site my.housecope.com.

1) Malfunctions of the STIHL MS 180 chainsaw: The gas key sticks, and over time the gas key stops moving altogether.
Cause: A build-up of translucent resin on the carburetor throttle shaft, causing the throttle mechanism to jam. Tar is formed when gasoline dissolves a poor quality air damper coating.
Chainsaw troubleshooting: Clean the throttle valve shaft of the carburetor with acetone, and tin the air damper itself.

2) Chainsaw malfunction: The chainsaw does not pull.
Cause: Clogged carburetor.
Chainsaw repair: Dismantling the chainsaw carburetor and cleaning it. Special attention when

cleaning the carburetor should be given to cleaning the additional filter (mesh in the carburetor of the chainsaw) - remove the largest cover on the carburetor, remove the membrane under it and clean the mesh in the recess from dirt (carefully so as not to lose this mesh). Of course - clean it with a thin copper wire, rinse and blow through all the channels in the chainsaw carburetor.

3) Chainsaw malfunction Calm 180: The idle speed of the chainsaw has increased (idle speed adjustment is not effective and not stable).
Cause malfunctions: Air leaks through the crankshaft oil seals or elsewhere.
Chainsaw troubleshooting: Replace the crankshaft oil seals and check for other possible suction points.

4) Chainsaw malfunction: After disassembling the carburetor, the chainsaw starts up with difficulty, white smoke is pouring from the muffler.
Cause: When disassembling the carburetor, we lost the spring under the needle lever, as a result, the needle does not block the fuel supply and “fills” the spark plug with gasoline.
Chainsaw troubleshooting: Find and place the spring under the needle lever in the chainsaw carburetor.

5) Chainsaw malfunctions: The chainsaw does not start well, does not work well.
Cause: "Fills" the spark plug with gasoline due to the sticking of the needle in the carburetor or the rocker arm is raised high.
DIY chainsaw repair: Flush and blow out the carburetor, align the rocker arm correctly.

Video (click to play).

This is either sucking in air somewhere, or something is clogged.

The main ways to troubleshoot a STIHL MS 180 chainsaw are to disassemble, wash and blow out the carburetor, change the fuel filter in the tank, check the fuel hoses for cracking (they can suck in air).
There is only one adjusting screw on the carburetor - idle speed (it happens, he turned it, and the chainsaw started working again).
The connection of the carburetor to the cylinder, in terms of air leakage, is reliable - there is a plastic ring (no gaskets are needed).

Immediately after starting the chainsaw, it works at increased speeds, and if you press the gas, then instead of starting to accelerate, it “chokes” and even stalls. Or it starts poorly, does not pick up speed and stalls (this chainsaw malfunction also applies to other expensive chainsaws with an accelerating pump in the carburetor).

The reason for the malfunction of the chainsaw: Wear of the rubber cuff on the piston of the accelerating pump in the carburetor (fuel booster). This leads to air suction by the accelerating pump and the main jet feeds a lean air-fuel mixture into the diffuser (there is little gasoline in the mixture) and the chainsaw first runs at increased speed, and then “chokes” and stalls. This happens after 2-3 years of operation and usually happens during the hot summer months.

Remove the carburetor from the chainsaw. Remove the fuel pump cover with the membrane by unscrewing one screw in the center of the cover.Then turn the carburetor towards you with the throttle valve, on the side where there are two holes, a pin is visible in one, and the accelerator pump is located under it. Remove the retaining ring from the outside of the pin and disconnect the choke spring wire. Unscrew the screw in the center of the throttle valve, remember how the throttle valve stands (so that it can be installed later) and remove the throttle valve. Plug the hole with the pin with your finger (the accelerator is spring-loaded and if you remove the throttle shaft and do not close the hole, the accelerator will pop out), then turn the throttle shaft and remove it. Shake out the accelerator (piston) with a spring from the hole. There is a rubber cuff (ring) on the piston - its wear is the cause of the chainsaw malfunction. It is necessary to replace the piston with a rubber cuff and a spring (they are sold as a repair kit). Or you can take out the worn piston with a spring, and plug the hole by pushing a rubber plug into it (the chainsaw will not have an accelerating pump, i.e. it will accelerate not in 3 seconds, but in 4 seconds, but it will work well since there will be no suction air carburetor).

Assembly after the malfunction of the chainsaw is eliminated (after the malfunction of the chainsaw carburetor is eliminated) is carried out in the reverse order of disassembly. When assembling the throttle valve, before tightening the screw, the throttle valve itself must be correctly set so that it does not jam, and the thread of the throttle valve fastening screw to the axle should be degreased and smeared with a special thread sealant (sold in small tubes, red, liquid) or flattened with pliers, because if this bolt is unscrewed during operation, it goes straight into the cylinder) and repair or replacement of the piston cannot be avoided). So we examined the elimination of this chainsaw malfunction.

All of the above applies to any models of chainsaws, including petrol trimmers, scythes and other equipment. Adjusted, of course, for design features.

There is an opinion that it is better not to climb inside the chainsaw on your own. For those who are used to working with a hammer and sledgehammer, perhaps this is so. Otherwise, any neat person who does not shake his hands can fix any problem with his work. In general, this is a job available to anyone.

Of course, it happens that the problem cannot be solved on its own. And you need to contact the service center. But firstly, 90% of faults are usually solved by simply flushing the nozzles or, in the worst case, replacing the membranes or adjusting the needle, and secondly, in the worst case, even if you are desperate, the carburetor removed from the saw can be easily replaced. The new original is, of course, a little expensive. The price for an analogue made in China is 700-800 rubles, you can buy it in a well-known store or from Russian dealers. In general, there is nothing to lose - we climb into the carburetor!

Let's make a reservation right away - diagnostics is an insidious thing. Sometimes the same symptom occurs due to completely different reasons. But we will check everything and find it together. So:

The idle jet may be clogged. Cleaning is required. How to do it - more on that below. But for now, let's talk about alternative reasons.

It is possible that the problem is in the fuel system. Check fuel hoses, fuel supply.

Sometimes problems with rpm (or rather their absence) are solved by cleaning the fuel tank check valve (gasoline tries to leave the tank, but air does not return instead). It looks like the one shown in the figure below:

Do not forget to readjust the carburetor in the only possible way - to change the amount of air supplied, which affects the idle speed very strongly. Everything is described in the instructions for the saw. For those who are too lazy to go into the instructions, here's a screenshot:

A special case of the previous problem. The solution required is the same.

Two very subjective indicators.In order to reliably state this or that, instrumental measurements are needed. From the practice of repair organizations, quite subjective things are often given out under one or the other. In some cases, blunt circuit effects can be mistaken for power loss. Naturally, performance in this case will be low. The saw sometimes seems to be quieter (blockages in cooling system, exhaust system). Increased fuel consumption can be caused by fuel leaks.

Often the problem is the muffler, not the carburetor!

Problems with the carburetor (how to fix and diagnose - below);
Overheating - cooling problems. Clean your saw;
Lack of air supply;

The chainsaw starts to stall or changes speed when tilted to the side. In the vertical - everything is fine, when turning - the revolutions fall (or grow) and it stalls

It is associated with the design features of its fuel system, filling the chambers. In addition, it is imperative to check the gas pump - sometimes the problem may be in it.

First of all, you need to understand that the carburetor of any engine is a unit into which the flows of air and gasoline converge. Therefore, for its normal operation, these streams must come in a working order, not clogged. In addition, the combustion products in the engine must freely leave the chamber through the muffler. Therefore, every time, before repairing and adjusting the carburetor, we must check:

Intake air filter;
We remove and clean the muffler;
We check the absence of problems with the fuel system - supply hoses, serviceability of the gas tank (operation of the low pressure compensation breather, see above);

In principle, it is not even so vital to turn the idle speed. Serviceable elements will already give normal performance characteristics.

The removal process is best shown in the video attached below. It also demonstrates the basic minimum steps in order to bring the node into working order. Schematically, this process looks like this: remove the cover, rods, unscrew the unit.

A significant part of the problems with the unit are associated with hardened or faulty carburetor membranes. The easiest way is to replace them if it has not been done for a long time. In workshop stores or on Aliexpress, whole repair kits are sold (their cost is about 200 rubles), containing all the necessary membranes. Sometimes, for an amount of about 600 rubles, you can buy yourself spare parts for the entire life of the chainsaw (see fig.).

Moreover, in this particular case, the kit also includes a rocker arm with a needle, which are also subject to wear and in some cases require replacement. In short, for the price of a new unit, the old one can be repaired almost an unlimited number of times. Assuming five is actually a lifetime set.

In some cases, the following method gives excellent results - we take out the carburetor, remove all the membranes (top and bottom), and then leave what is left to soak in acetone for several hours. Often, foreign objects and substances simply get into the jets and channels (sometimes, for example, traces of sealants are found there!). Therefore, simple cleaning has an excellent effect. No costs and no membrane changes. Although the decision to replace them must be made locally, guided by their condition.

Surprising as it may seem, it is quite. This unit has practically only one requirement - the accuracy of its manufacture. In terms of geometry, as a rule, everything is fine with him. It does not bear any excessive mechanical or chemical loads. Therefore, a simple replacement may well be an appropriate option to permanently extend the life of a chainsaw, which costs quite decent money.

Chainsaw Calm 180 - device and carburetor adjustment

The stihl ms 180 chainsaws are designed to make their use as easy as possible for inexperienced users.For this, some of the settings available on the more powerful Stihl models have been abolished in the saw carburetor. But there is still an opportunity to adjust, and repairs, as well as adjusting the carburetor of the chainsaw calm 180 with your own hands, is possible.

First, it is worth deciding why it may even be necessary to adjust and repair the stihl ms 180 carburetor at all. So, this must be done in the following cases:

if the chainsaw does not idle;
repairs may be required if the saw does not start;
there is a loss of power;
increased fuel consumption;
the chainsaw does not reach maximum rpm.
stalls when accelerating.

This list can be continued for a long time, but we have identified the main reasons. Before proceeding with the adjustment, you need to know what the main parts are. carburetor on the chainsaw calm 180, and who produces it.

So, the stihl ms 180 carburetor is developed and manufactured by a subsidiary of Stihl, called Zama. Original carburetors have a company logo on their body, which guarantees the quality of products.

A fuel pump is installed directly in the carburetor body, which operates under the action of an air pulse from the crankcase of the chainsaw, which is transmitted through special channels. A diaphragm is installed in the pump, it is she who is responsible for pumping fuel under the action of an impulse. A gasket is installed between the diaphragm and the body, which is responsible for the tightness of the fuel pump.

In the distribution chamber, as in the fuel pump, there is also a membrane that opens and regulates the fuel supply by pressing a special rocker arm, which raises its needle valve.

The cover of the chamber is the compensator body, which is attached to the carburetor with four screws; a gasket is installed between the body and the cover, which increases the height of the chamber and is responsible for sealing.

The fuel injector is mounted in the carburetor body in such a way that it is a connecting link between the distribution chamber and the cavity in which the throttle valve is installed. Simultaneously with the fuel, air is supplied to the nozzle and an air mixture is formed. The injector has a check valve that blocks the flow of air in the reverse sequence, that is, from the throttle chamber to the distribution chamber.

The throttle valve is installed in the carburetor body and is responsible for increasing the supply of the fuel mixture directly to the engine cylinder. At the moment of pressing the gas, the throttle valve opens slightly, thereby increasing the throughput of the channel and the fuel from the carburetor cavity, rushes into the cylinder in a larger volume.

Combustion of a larger volume of fuel increases the amount of generated energy, which affects the power and speed of the processes. The damper is installed on the shaft passing through the entire carburetor body. At the exit of the shaft from the body, a mount for the gas cable is installed, next to it is a cone-shaped adjusting screw responsible for adjusting the idle speed. By tightening the screw, you can slightly adjust the position of the shaft and the damper installed on it, thereby increasing or decreasing the idle speed, slightly opening or vice versa closing the damper.

How to repair carburetor on a chainsaw Calm ms 180.

The Stihl 180 chainsaw carburetor, indiscriminately, can only be adjusted by the number of idle revolutions. It is impossible to increase or decrease the fuel supply in different modes using special screws. The manufacturer restricts access to adjustments and does not install these screws.How to adjust the carburetor to the correct idle speed is described in great detail in the manufacturer's instructions.

In the event of certain malfunctions, and experience, increase or decrease fuel supply it is possible by increasing the clearance when opening the needle valve.

To increase the flow, the rocker needle valve in the distribution chamber, it is necessary to bend up, and to decrease, down. This regulates the stroke of the needle and, accordingly, the throughput of the valve.

You should not carry out the adjustment yourself, since this must be done very accurately and in case of an error it is almost impossible to return the original position of the rocker arm.

After we have examined the carburetor device, it will not be difficult to determine the reason why fuel enters the combustion chamber in a larger volume. This is due to the wear of the gasket between the compensator cover and the carburetor body. How can this affect you, you ask?

The answer is simple, by contracting, the gasket releases the diaphragm on top of it a fraction of a millimeter down. She, in turn, will press harder on the rocker needle valve, it will open more than it should be and the fuel will be supplied in excess (it will start to overflow).

Another reason is the stretching of the diaphragm itself, this occurs as a result of natural wear and tear. It is impossible to prevent this process, but you can solve the problem by periodically changing all the gaskets, carburetor diaphragms, and the fuel pump. There is a repair kit for this.

When cleaning the chainsaw with compressed air, never blow into the fuel pipe, as this can stretch the diaphragm.

A common reason for the failure of the carburetor on a chainsaw calm is the sticking of the valve in the nozzle. The reason for sticking is a violation of the storage of the chainsaw, or rather the manufacturer's instructions Calm 180 on the correct preparation for storage.

As follows from the instructions, before long-term storage, it is necessary to drain the fuel from the tank, then start the saw and burn the gasoline from the carburetor. Failure to comply with this elementary rule entails the following consequences. The forsknui valve, being in direct contact with the fuel, sticks to the body, since the gasoline evaporates little by little and only sticky oil remains. It is impossible to replace the nozzle, since they are not in the repair kit, you can only try to knock it out and rinse it, which is not always possible to do without damaging the nozzle.

In cases where it is necessary to clean the Stihl 180 carburetor or disassemble it, first you need to remove the unit from the chainsaw. This must be done in compliance with a certain algorithm of actions:

Put the protective cover for the chainsaw on the tire.
Remove the top cover of the chainsaw.
Remove the two nuts securing the air filter and carburetor.
Remove the air filter housing.
Disconnect the wire from the engine control lever.
Carefully remove the lever from its seat in the housing, at the same time disconnecting the choke rod from it.
Pull the carburetor towards you and disconnect fuel supplyas well as throttle thrust.

To facilitate dismantling, you can additionally untwist the rear handle and disconnect the throttle rod first from it, and then only from the carburetor. This may be required, since without some experience, disconnecting the rod from the carburetor is quite problematic and it is easier to disassemble the handle first.

To install the part in place, follow the reverse order of the algorithm.

When removing and installing the chainsaw engine control lever, you should be extremely careful, since the seat on the saw body is the weak link of the saw, and very often inexperienced users break it.

In order to purge, change gaskets or the needle valve, the carburetor must be disassembled. To do this, unscrew 4 screws on the expansion joint cover and one on the fuel pump.

Having opened the case, you should be extremely careful, because.if debris gets inside the carburetor, it will make it impossible to work. The thickness of the channels in it is comparable to the thickness of a thread or even a human hair.

A video for repairing a calm 180 carburetor can be viewed below. In it, the master tells in detail about the problems and clearly demonstrates the entire repair process.

In conclusion, I would like to note once again that the Stihl carburetors, which are manufactured by its subsidiary Zama, are very reliable. With proper operation and storage, they are able to serve the entire period allotted to the chainsaw without repair.

Despite the many varieties of modern building materials, wood remains the most demanded. In this regard, chainsaws are in great demand among fellers, owners of their own houses and summer residents.

Among the huge variability of the model range, the most popular among both amateurs and experienced foresters for many years has been the calm 180 chainsaw, which is distinguished by its simple maintenance, repair and operation. The Stihl company was founded more than 9 centuries ago and began production of gasoline chain saws back in 1926. Thanks to many innovations, simplicity and durability, the tools of this manufacturer are in demand on the world market of woodworking equipment.

Before starting work on the diagnosis of malfunctions and their elimination, it is necessary to prepare the necessary tools.

General view of the Stihl MS 180 chainsaw with the main units

Due to the fact that the chainsaw is a relatively simple unit, the list of accessories includes the following items:

a set of flat and Phillips screwdrivers;
open-end locksmith keys;
candle key;
set of sockets with a knob
Multifunctional tool Stihl.

Multifunctional tool calm

In order to qualitatively eliminate the emerging breakdowns and restore operational indicators, it is necessary to establish as accurately as possible the malfunction preceding the failure of the unit. Following from the fact that the chainsaw is equipped with an internal combustion engine (ICE), the main causes of breakdowns should first of all be looked for in the power unit.

Before starting work, it is necessary to turn off the engine, let it cool down and exclude the possible start of the chainsaw. It is recommended to wear cotton gloves to protect your fingers.

The most common faults when repairing a chainsaw calm 180 include:

the engine does not start;
the operation of the motor is intermittent, with a short operation of the chainsaw, it spontaneously stalls;
oil leaks near the chain lubrication mechanism;
the engine does not develop full power.

Frequent breakdowns of the transmission part of the saw include rupture of the chain links. You can independently restore its integrity by riveting the links or replacing it with a new one.

Despite the relative simplicity of the design and the absence of complex mechanisms, experts recommend searching for faults in a specific order. First of all, the presence of a mixture in the fuel tank is checked, and if everything is in order with the liquid level, it is necessary to proceed to inspecting the chainsaw start unit. If this mechanism is also in good condition, it is necessary to check the performance of the spark plug.

After the performed manipulations to diagnose the spark plug (determining the presence or absence of carbon deposits, the correct gap between the electrodes, the state of the sealing ring), we turn our attention to the carburetor. Small sawdust, dust and soil particles often clog the fuel system.

If cleaning the carburetor of the stihl 180 chainsaw did not help to restore the previous performance of the unit, the reason probably lies in the cylinder-piston group (CPG). The power unit belongs to the most complex mechanism of the tool, the diagnosis of which requires almost complete disassembly.

The first step in diagnosing the fuel supply system is to check the level of the fuel mixture in the tank.

The main nodes of the fuel system of the chainsaw 180 calm

Even if the owner is confident in the presence of gasoline, this allows you to eliminate the vacuum created as a result of a clogged bypass valve. It is designed to optimize the pressure in the tank with fuel consumption. For the convenience of cleaning the breather, chainsaws use a regular medium-sized sewing needle.

When inspecting the fuel system, you should pay attention to the integrity of the pipes, the tightness of which can be violated by mechanical damage or prolonged operation of the unit. Sometimes the cause of the mixture flowing out and, as a consequence, the incorrect operation of the engine, is the wear of the rubber gaskets and the primer (suction button). In this case, to repair a calm 180 chainsaw with your own hands, you need to purchase a repair kit of seals and replace them.

The cause of problems with a chainsaw of this model may be the inoperability of the ignition system and the engine start unit. Image - DIY carburetor calm 180 repair

General view of the ignition of a chainsaw 180

If, when measuring the gap between the flywheel and the module, no deviations are found, you must pay attention to the spark plug.

Most manufacturers, including calm chainsaws, recommend setting a clearance of 0.2 mm. This requires a coin, coin wire, or flat dipstick, which can be purchased at any automotive store.

Chainsaw starter Calm 180 assy

Having dismantled the candle from the mine, we measure the gap of the chainsaw candle between the central and side electrodes. If its value is excessive (more than 0.7-1.5 mm), a spark may occur periodically, and if it is minimal (less than 0.7 mm), it may be insufficient for optimal ignition of the fuel mixture.

If gasoline enters the combustion chamber, and no inconsistency in the ignition system has been identified, the carburetor may be the likely cause of failure. This unit is designed to mix fuel with air and supply them to the cylinder. After dismantling the carburetor, we clean its channels and jets using universal tools.

It must be remembered that the carburetor consists of many small parts, and therefore its dismantling, disassembly and cleaning require special care.

After diagnosing the ignition system of the chainsaw calm 180 and its restoration, we proceed to troubleshooting the power unit, namely in the cylinder-piston group of the saw.

During operation, parts of the cylinder-piston group of the saw fail due to friction forces, high temperatures and loads. If the tool does not reach full power at startup and stalls at idle speed, a possible problem could be damage to engine parts. To disassemble the power unit, it is necessary to unscrew 4 bolts and remove the cylinder. The owner is required to carefully inspect its inner work surface for chips, nicks and cracks.

Even the slightest damage to the "mirror" of the cylinder can negatively affect the compression of the chainsaw engine and its performance.

Cylinder-piston group of the Stihl MS180 chainsaw

When diagnosing an internal combustion engine, we also perform a visual inspection of the piston and compression rings. Made of aluminum alloy and cast iron, respectively, they are more exposed to abrasion loads than a steel cylinder. In case of breakage and excessive wear of the piston rings, they must be replaced.

If, upon visual inspection, the ovality of the cylinder working surface is observed, it will need to be bored. To do this, we measure its diameter over a larger size, select the piston and perform the subsequent machining.

In the process of sawing wood, the cutting part of the tool is subjected to high loads. In order to reduce frictional forces and the subsequent wear of the chain, the chainsaw calm is equipped with a lubrication system that gradually supplies oil to the tire. The rapid loss of cutting properties by the teeth and the absence of traces of lubricating fluid may indicate its leakage or clogging of the pipes. Image - DIY carburetor calm 180 repair

Stihl 180 chain lubrication principle

First of all, when diagnosing the chain lubrication system for the ms 180 chainsaw, we pay attention to the oil supply hoses and their fixation points. Damaged connections cannot be repaired and must therefore be replaced. The oil channels can be cleaned with compressed air. For these purposes, we use a compressor or an ordinary car hand pump.

Due to its ease of operation and repair, the chainsaw of this model has gained wide recognition among professionals and amateurs in the field of woodworking.

The Stihl 180 is a German chainsaw designed for gardening, logging, site clearing and other woodworking. Many people love it for its compactness and ease of use. The instrument combines seemingly opposite qualities - power and maneuverability. German designers have tried to create this sample, but the MS 180 Stihl also has drawbacks that users face in various operating modes. Like all mechanisms, it tends to fail. What to do in such cases and is it worth contacting the workshops?

Many owners of this saw faced its malfunctions, and immediately gave their tools to special workshops. Of course, they will subdue her there quickly and for a long time, but sometimes you can fix a breakdown yourself, without anyone's help. This does not require any special tools or deep knowledge in the device of chainsaws. You just need your accuracy and "straight" hands. However, do not forget that not all breakdowns can be corrected on their own; some operations require expensive equipment and deep knowledge of mechanics. In such cases, it will still be easier to visit the service station or the store where the chainsaw was purchased (if the warranty period for the product has not yet expired).

Most malfunctions arise from clogged nozzles or worn membranes. Anyone can solve these problems by cleaning valves and replacing obsolete elements. And if the repair of the chainsaw gets out of control and the saw carburetor finally breaks down, then at any time you can buy the same carburetor in any technical store (the price for them does not exceed 700 rubles). So don't hesitate to take on DIY repairs!Faults that can be solved by repairing the carburetor: It is worth noting that the diagnostics may not always correctly indicate the problem. There are times when, due to different reasons, the same "symptom" occurs. And sometimes diagnostics can give false information, as a result of which you will not be able to correctly eliminate the cause of the breakdown. Give diagnostics due attention, but do not overestimate its importance.The tool does not hold idle revolutions, and sometimes the revolutions "walk". Most likely the idle jet is clogged. It is urgent to clean it, otherwise the saw will not be able to perform its functions. Another possible cause is a malfunction of the fuel system.Sometimes this problem is solved by unclogging the valve that restricts the fuel tank. This valve regulates the output of gasoline and the passage of air. Do not forget to adjust the carburetor by changing the amount of air that is supplied to it. More details about this operation can be found in the instructions included with the brand new chainsaw.The Stihl chainsaw carburetor, without disassembling, can only be adjusted by the number of revolutions produced at idle. It is impossible to increase or decrease the fuel supply in various modes. Manufacturers have limited access to this adjustment by removing special screws. If faults are detected in this system, it is possible, with experience, to increase the gap between the needle valve and the wall.
The saw does not start. The solution is the same as in the previous paragraph.The tool began to consume more fuel, while its power was significantly reduced. Gasoline consumption and power are subjective terms.To accurately determine these indicators, one cannot do without visiting special firms specializing in this instrument.Well, if these two indicators are visible "on the face", then follow these steps: ✔ Check if the chain is blunt. A dull chain has a lower efficiency, and therefore the saw consumes more fuel.✔ Inspect the fuel tank. Perhaps it has formed a small mechanical damage, through which gasoline escapes imperceptibly.✔ Inspect the muffler carefully.✔ Clean the cooling system and exhaust system.✔ The unit stalls immediately after operation or warming up. Experts call it hot.The most common reasons are:

Lack of air entering the carburetor. Replace inlet and outlet valves.

Breakdown of the cooling system (overheating). It is possible that foreign objects have entered the cold air pipes and must be removed.

Chainsaw stalls when position is changed. This only applies to tilting to the side, in the vertical state the saw functions normally. This problem even applies to serviceable chainsaws, because during the development the designers made a small mistake. The Stihl 180 fuel system has a special design, in which the fuel cannot escape from the tank on its side. Sometimes the problem lies in the clogging of the fuel pump.

The procedure for parsing, as well as setting the carburetor of the Stihl 180 chainsaw: In order to carry out a high-quality repair of the carburetor, you will need to remove it. This is not difficult to do, but you need to be extremely careful. First, we will prepare the workplace: install the lighting, lay out all the necessary tools. Understand that the carburetor is the main saw unit where the fuel and gasoline flows intersect. For stable operation, they must be cleaned of foreign debris.

Therefore, before the main work, you need to do the following:

Remove and clean the muffler.

Make sure there are no problems with fuel supply and combustion.

Check the serviceability of the air and cooling filters.

↑

Good afternoon, dear readers, I'm in touch - Andrey Noak. In this article, I decided to briefly talk about how I repaired the Shtil 180 chainsaw with my own hands. In fact, this story is like a whole mini adventure that was with me on vacation. It all started with a desire to renovate the floor.

After going through a few notes, I opted for plywood. With a limited budget, this was the most suitable solution. But there was another problem: how thick should it be? After all, the difference in prices for this material is significant for me. Therefore, I went from the opposite: how can you save money and still do everything well?

First, the choice of plywood was based on how flat my floor was. Considering that this parameter is far from ideal, I discarded the options for buying thin plywood aside. Secondly, 16 cm sheets seemed too expensive to me. The decision came by itself: plywood with a thickness of 12 cm is best suited.The cost of each sheet is somewhere in the middle, it is able to withstand serious loads, and besides, long screws will be needed to fasten it, which means it will last longer.

But then it got more interesting. By a strange coincidence, I had nothing cutting at home, except for the Stihl 180 chainsaw. I didn't want to go to the store a second time, and the time allotted for repairs was running out. That is why I decided to use this device. Has anyone had a similar experience? Let me tell you that this is something interesting, albeit dangerous. I had to come up with a device that holds the sheets.

After three successful cuts, another nuisance occurred: my working tool broke. And then the second question arose: how to repair the Stihl 180 chainsaw with your own hands? Sounds like the title of an article, doesn't it?

Your humble servant turned to the World Wide Web and found that such equipment has, so to speak, several "congenital defects".What exactly am I facing? That's right, with everything at once.

Even while working, I noticed that oil was leaking on the surface of the chainsaw. Not attaching importance to this at first (you never know, suddenly pulled strongly to the side or something), I soon regretted it: I had to completely disassemble the chainsaw to fix the problem. It consisted in the fact that the hose that supplies the oil moved away from the oil tank. This repair took me about an hour or two, since I had to step by step, constantly looking at the instructions, to perform actions.

Further more: the chainsaw stopped starting!

Turning to the World Wide Web again, I came across several solutions to possible problems.

The easiest set of specific actions turned out to be: open and then close the tank lid; dry the candle; purge the combustion chamber. As promised from the instructions, such a solution most often returns the chainsaw to "life". This, however, did not happen for me.

I carefully examined the spark plug for breakage. It turned out to be dry, which means that the problem was not in the ignition system. Next, I checked the fuel supply system and air filter. I cleaned the breather with a needle. As one master from the Internet said, because of it, the fuel supply can be disrupted. Quite frankly, I did it, rather, I’m going to do it, that nothing else came to my mind. Everything seemed to be in order. I put every part in place and worked the starter several times. But the chainsaw did not turn the gas, and continued to lie with a dead weight.

Going back to searching on the Internet, I found out that the problem may be in the carburetor. Naturally, I wanted to fix the possible breakdown myself. But after meeting with a description of the parts that make up the carburetor, and how they need to be tuned, I came to the conclusion that it would be better for someone else to do it. In the meantime, I will look for other possible problems. By the way, I wrote about setting up the carburetor here.

In general, I again returned to the candle. It seemed that the main snag was in it, which meant that I would have to go to the store and look for a replacement, otherwise there would be a big hole in the bottom of my house for another two weeks. I never installed the plywood. Finally, I wiped off the gasoline plug again and screwed it back on. And then ... the chainsaw "came to life"! Apparently, there was simply no normal adhesion of contacts.

I hope that the ordeals I have described will help you to cope with problems at some point. In general, despite wasted several hours, I modified this chainsaw, but then I still had to buy a new one.

On this I say goodbye to you. Subscribe to blog updates and tell your friends about it. All the best!

Video (click to play).