Calm 180 ignition adjustment. Do-it-yourself adjustment of the Shtil 180 chainsaw carburetor

How to set the ignition on a Shtil 180 chainsaw

How to set the ignition on a chainsaw
In this review, we will try to answer a question that arises for many chainsaw owners. During the operation of such a tool, the consumer may encounter a situation in which it is necessary to adjust the ignition timing. Over time, the breaker may fail; the coil also does not last forever, although it lasts much longer and is quite difficult to disable. So let's figure out how to set the ignition on a chainsaw.

Structural components

All engines, be it a car or another instrument using an internal combustion , have similar operating mechanisms.

Not an exception are such famous chainsaws, which are used with pleasure by consumers, such as Goodluck, Shtil or Husqvarna.

The drive in them is the familiar internal combustion , respectively, a fuel tank, an engine and a working element that performs specific work, as well as other suspended organs that help with control.

From time to time, during use, certain obstacles may arise in this fairly reliable tool like a chainsaw .

The question arises, what to do then?

Here are some common cases:

1. The chainsaw does not start;
2. If it starts, it works intermittently;
3. Insufficient power to operate properly.

Ignition

The main one in this group of problems is the engine.

Ignition is one of the main elements affecting the trouble-free operation of the tool. Therefore, we will consider this block first.

Gone are the days when the ignition was controlled by a breaker with cams and moving contacts that supplied a spark to the spark plug.

It was not a very reliable system due to the many elements that affected the operation of the engine. the chainsaw could simply stop starting. And we could observe a picture of constant tugging on the winding cord. Today, manufacturers have switched to contactless ignition systems.

Installation of ignition calm ms180

Allows you to correctly determine in a situation when disassembling and replacing the ignition

need to
be exhibited
.

Assembly of STIHL MS180

STIHL

,Briggs Stratton.

They have fewer moving parts and no contacts that need to be reset periodically, which often fail. The coil used on a modern chainsaw will last until the end of your tool’s service life. The chainsaw has become much more reliable and easier to maintain.

Possible faults

If the saw does not start, the first thing you need to check is the spark plug, which gives a spark, which ignites the fuel in the cylinder. Start by removing the high voltage wire that the spark plug is connected to. Then unscrew the spark plug itself from the cylinder cover and inspect its condition. When working properly, the candle should be dry and have small deposits on the ceramic of a light color:

• If the spark plug is wet, it means there are problems with the carburetor. It is necessary to adjust and set the fuel level in it;
• Soot on the walls of the spark plug is dark or black in color, indicating a malfunction in the piston group.

If you have not found any visible causes of the malfunction here, the spark plug is dry, the carbon deposits are light, continue to work backwards. Since this is the final point of ignition of the working mixture. Now check if the spark is getting to the spark plug. This is the ignition system unit.

Checking whether there is a spark will not be any particular problem; to do this, just take the high-voltage cable to which the spark plug is connected, bring it to the cylinder block, leaving a small gap between them so that you can notice the spark slipping between them. Then we pull the starter cord and see if there is a spark and what color it is. A working spark plug should produce a spark similar to lightning. How it looks, look at the photo offered to your attention , everything is clearly visible on it.

If a spark is not observed, check with a test light, if there is no probe, check the high-voltage cable . There may be a break in the place where it was bent most often. If the wire is ok, it is possible that the problem is an incorrectly set ignition angle. It may be too early or too late; in both cases, the chainsaw starts well and will not work.

Now let's try to set the correct gap between the moving and fixed contacts. Ideally, it should be 0.2 mm. You can check it with a dipstick since it is not a deficiency.

This was a description of the malfunctions of the older generation of chainsaws. The new generation includes modern chainsaws Goodluck, Shtil and Husqvarna.

Modern systems

Modern systems are equipped with chips that regulate all of the above problems. A method for independently setting the ignition timing depending on engine speed and power transmitted to the cutting element. At the same time, fuel is saved significantly without sacrificing power. It also makes starting the saw much easier, regardless of weather conditions.

In addition to everything read, a video is offered here for a complete overview of the material presented.

2 comments on the post “How to set the ignition on a chainsaw”

I bought a Shtil chainsaw and practically never used it. I'm just repairing it. I can't start it.

Ignition faults

Most often, we think about repairs after the chainsaw stops starting, or visual signs of serious damage appear.

Signs of ignition malfunction:

• The chainsaw starts, but works unevenly (troits), often sneezes and shoots;
• The power of the chainsaw has noticeably dropped;
• When you sharply press the accelerator trigger, failures in engine operation are observed;
• The chainsaw does not start well when cold, it stalls violently until it warms up;
• Fuel consumption has increased significantly;

If such flaws appear in the operation of your chainsaw, then it’s time to diagnose, adjust, and possibly repair the ignition system.

Fault location determination:

First of all, it is necessary to inspect the spark plug; if a lot of carbon deposits have accumulated on it, then the cause of the malfunction is most likely related to the operation of the carburetor, piston group or fuel quality. If the spark plug visually appears to be in good working order, does not spark and is dry, make sure there is a spark.

• Unscrew the spark plug, put the ignition cable on it;
• Using insulated pliers, press the spark plug threads to the motor housing;
• Pull the starter handle sharply towards you and make sure there is a spark;

If there is no spark, replace the spark plug with a new one and test again. After making sure there is a spark, start the engine. But what to do if there is no spark even on a working spark plug? Let's continue the search:

We test the electrical cable for breaks and insufficient contact with the spark plug. We check the serviceability of the spring in the cap of the candle holder and the presence of contact with the armored cable;

To check the serviceability of electrical wiring, it is best to use a tester.

You can set the correct gap using a feeler gauge; they are not in short supply and are available for a small fee.

Diagnosing a fault with a multimeter

The malfunction of the ignition coil can also be determined using the so-called hardware method. However, for this you must have a multimeter with which diagnostics are carried out.

Step-by-step ignition diagnostics with a multimeter:

• We set the multimeter to a position where the arrow is at the 200 ohm mark.
• We study the instructions for the chainsaw. We find out the optimal resistance for the winding of the coil installed on our model (in most modern chainsaws this indicator ranges from 3-5 Ohms);
• We connect a multimeter to the primary winding of the coil and measure the resistance, if it is normal, we continue testing;
• We connect the multimeter to the secondary winding of the coil, compare the readings obtained with those indicated in the instruction manual;
• We connect the multimeter to the hole in the coil into which the wires are inserted. If the device produces normal readings, we come to the conclusion that the coil is working properly. If the measurement results are far from optimal, you will have to replace the assembly (coil) with a new one;

Video review of fault determination using a multimeter

Ignition adjustment

As we have already noted, you can adjust the ignition system both in the workshop and at home. To do this, you will need ordinary wrenches, a screwdriver and a 0.4 mm feeler gauge (you can make a feeler gauge yourself from scrap materials - regular copier paper, a plastic bottle, etc.).

Step-by-step adjustment of the chainsaw ignition:

• We diagnose the malfunction;
• Remove the protective cover;
• We remove the module with a candle holder and an electrical cable. We carry out a visual inspection of them and, if necessary, replace them with a new one;
• We install the ignition module, but do not tighten the fastening screws all the way;

• We determine the area with the magnet on the flywheel;
• We set the gap properly, in accordance with the parameters specified in the instruction manual;
• We tighten the module fastening screws until they stop, check the settings with a feeler gauge, and, if necessary, re-adjust;
• We install the protective cover and check for the presence of a spark on the spark plug;
• We screw in the spark plug and start the chainsaw;

You should also check whether the counterweight flywheel is catching on the module. If this happens, you may have a failed bearing or play in the shaft.

How to Adjust the Ignition of a Stihl 180 Chainsaw

How to install the ignition on a chainsaw

In this review, presented to your attention, we will try to solve a problem that arises among many chainsaw owners. While using such a tool, the user may encounter a situation in which it is necessary to correct the ignition timing. Over time, the breaker may fail, and the coil also does not last forever, although it lasts much longer and is quite difficult to turn off. So, let's figure out how to put the ignition on a chainsaw.

Structural Components

All engines, be it a car or another internal combustion engine tool, have similar operating principles.

It is no exception that there are such outstanding chainsaws and are used with pleasure by such consumers as Goodluck, Calm or Husqvarna.

Drive into them. This is all the familiar internal combustion engine, respectively the fuel tank, the engine and the working part, which does the work itself, as well as other articulated parts that help in control.

Sometimes, during operation, some problems may arise in this fairly reliable tool, such as a chainsaw.

The question arises, what to do then?

Here are some common cases:

1. The chain saw does not start;
2. If so, it works intermittently;
3. Insufficient power to operate properly.

Ignition Calm at the Benzo-Zip parts store

Ignition Stihl on all gasoline saws consists of three main parts - a flywheel-fan, a coil (magneto) and the spark plug itself. The flywheel is a round aluminum part with blades on which the starter dogs and magnetic soldering or spraying are located. Directly, the Stihl ignition coil will differ on different models of the tool in the center distance and other parameters, which we’ll talk about today. It looks like a box with high-voltage wires.

You can purchase a reel, also referred to as a “module,” quickly and reliably on the pages of the website of spare parts for chainsaws, “BenzoZip”. Here wholesalers and retail buyers can profitably order parts for any tool models from the German manufacturer. We offer the largest list of ignitions for saws profitably, inexpensively and quickly.

Related Posts

DIY chainsaw repair "Calm"

The Stihl chainsaw, specifically the MS 180 model, is used primarily for harvesting wood and performing various construction work. Shtil 180. Adjusting the ignition of the Shtil 180 chainsaw. Shtil 180, video. Similar equipment is used very often due to the large list of functions and capabilities. The main feature of this model is reduced vibration, which is very important. Naturally, during use, the chainsaw may break down, which means you will have to repair it.

Carburetor problems

A special feature of the Stihl chainsaw carburetor is the presence of 1 screw, which is responsible for setting the idle speed. During the operation of the equipment, it is always necessary to pay attention to the idle speed . A few simple steps will help you adjust this: checking the air filter, as well as the spark protection grille.

It is worth noting that repairing the carburetor of a Stihl chainsaw is considered a labor-intensive process. The article discusses in detail the adjustment of the spark plug for the Shtil 180 chainsaw. If for some reason it stops starting, you must do the following:

• open the gas cap and then close it;
• remove and dry the candle;
• ventilate the combustion chamber.

What is a spark plug and why should you change it?

The part itself is responsible for igniting the air-fuel mixture. It is necessary to replace the spark plug in case of problems with the engine (it runs, but is unstable), this procedure is also necessary when the tool simply stops turning on.

Spark plugs for Husqvarna chainsaws and power units from other manufacturers are also recommended to be replaced every hundred hours of operation of the chainsaw. This is a consumable part that wears out due to:

• Poor quality oil applications (electrons, side and center, covered with black soot)
• Poorly adjusted carburetor or broken starting system (due to this, fill the fuel mixture with a spark plug);
• The carburetor has failed (the spark plug will not ignite a spark, which will cause problems starting the engine of the tool).

Varieties of candles

There are no universal candles. They differ in a number of parameters:

• Body geometry;
• Thread diameter;
• Thread length (shirt length, as the craftsmen call it).

There are such concepts as “warm” and “cold” candles. A lot of glow indicates that the plug is cold (it is not efficient enough to absorb the heat coming from the combustion chamber), while a low glow indicates that the plug is hot.

When replacing a spark plug, purchasing a new spare part, the easiest way is to find one that meets the parameters specified by the manufacturer (these parameters are indicated in the instructions included with the tool). If for some reason you do not have access to the data, conduct a visual inspection of the spark plug, remove the parameters, including the number indicated on it (glow).

At the moment, on the modern market you can find spark plugs produced under the brands Champion, Stihl, Brisk, Bosch, Oregon, NGK, and there are also certain options suitable for production models Partner, Husqvarna, Stig, AL-KO, Oleo. Mac, Wolf Garten, Mc Culloch, etc. Don't forget that you need to know the gap on the chainsaw's spark plug.

READ The best way to cut wire boxes

You must disassemble this item to remove the necessary settings. Unscrew it easily using the spark plug wrench that is usually part of the power supply.

Preparatory stage

Repair of any equipment must begin with the preparatory work stage, and the Stil 180 saw is no exception. At the preparatory stage, before disassembling the Shtil 180 chainsaw, it is necessary to remove the side cover, chain and tire from the chainsaw. Next, using a compressor and a brush, you need to clean the chainsaw from dirt, sawdust, oil stains and other things.

When cleaning the saw, special attention should be paid to the place where the chainsaw drive sprocket is located, since this is the most contaminated area.

In places where there is a large accumulation of oil, you can wash it with clean gasoline.

What is the resource of candles?

Spark plugs are consumables, that is, they obviously have a shorter service life than a chainsaw. Technologically, it is generally accepted that the service life of a spark plug in chainsaws is 100 operating hours. After this period it is recommended to change it. In practice, this period can be significantly higher or lower. Above under the following conditions:

• high-quality gasoline and oil are used during operation;
• there was no critical overheating of the engine and overheating of the spark plug;
• the gap is set correctly, the electric arc (spark) is normal;
• preventive measures have been taken: the contact between the central and side electrodes has been cleaned with a “null”, and the contamination inside the spark plug has been removed.

On the contrary, low-quality fuel, overheating, and contamination reduce the service life of the spark plug. An incorrect gap leads to the fact that an arc that is too long or short quickly burns out the electrodes (electric welding effect).

And also watch the video Disassembling the STIHL MS180 chainsaw

Good evening, I have the same problem. I saw a calm ms180c, I didn’t work much, the last time I sawed trees, the engine began to have interruptions. Then it stalled. what I didn’t do, 0, disassembled the blower, cleaned the carburetor, reassembled it, started up with half a turn, worked great, picked up speed, stalled, and again 0, replaced the spark plug. ignition coil, 0, disassembled carburetor, clean, blew, reassembled, started. and it worked again, the gas ran out, I poured a little, added gas, everything was 0 again, the spark plug was wet, there was a spark, tell me. I described how to solve this problem meticulously, so that it would be clearer, maybe someone has encountered this problem. Thanks in advance.

Hello, did you try it when you pulled the spark plug out? is there a spark? It happens that there is a spark and everything seems to be in order, but the saw still does not start. I actually had almost the same situation on another brand. It turned out there was no compression. I changed the seals and it seems to still be working (for the second year now). Another problem that happens is filters. did you change them? in general, a bunch, different answers every time, so as not to bother for a long time, try the service, if it’s too expensive, then...

What do we need to send?

In order to arrange delivery we need the following information:

• Last name, first name and patronymic of the recipient
• Main phone
• Spare phone (if available)
• Series, number and date of issue of a driver's license, passport or other identification document ( for TC PEK and Baikal Service
  )

We understand some people's concerns—not everyone wants to give out so much information about themselves. Unfortunately, this data is required by the transport companies PEK and Baikal Service themselves.

.

Before handing over the goods to you at the point of delivery, they will compare the details of your document with those declared. If they do not match, then you will not be given the cargo, even if the full name is the same (because the full name of different people can be the same!).

There's absolutely nothing to be afraid of here

- This is standard practice for all transport companies.
Knowing 3 numbers from your passport or license, you can’t do
even if you want to.

The consignee (individual) must present an identification document, the details of which were declared by the consignor when handing over the cargo to the Forwarder.

Removing the handle

Direct disassembly of the Shtil 180 begins with removing the handle, which is attached to the chainsaw body using three rubber shock absorbers. To remove it, you need to remove the plastic plugs from the internal cavity of the shock absorbers, then using a powerful screwdriver, first press out the upper shock absorber, then the one closer to the rear handle.

At the rear of the handle there is a throttle trigger, which is connected to the carburetor through a wire rod; in order to disconnect the rod from the gas trigger, you need to unscrew two screws and disassemble the handle.

When the handle remains on one shock absorber, you need to unscrew the chainsaw body from the inside of the handle and, bending it to the side, remove the body from the last rubber band.

How to determine the advance angle of the built-in ignition?

The design features of the built-in ignition coil ensure a match between the optimal factory position of the moving piston and the discharge of the spark plug. During operation of 4-stroke power units, the spark must jump before the piston returns to its uppermost position. This is due to the fact that such engines take longer to burn fuel. In their factory design, the speed of operation of internal combustion engine parts is equal to the speed of planned ignition of the filled fuel. In this regard, the piston has time to travel a certain path from the moment the created spark instantly jumps to the place where the spark plug is located, to the period during which the burning gases are guaranteed to create extremely high pressures.

During mass assembly of engines under standard factory conditions, manufacturers do not perform ignition adjustments. Instead, marks are left on the rotating elements, which must be aligned during installation.

Removing the flywheel

The flywheel of the Shtil 180 chainsaw is twisted with great force, so to remove it you will need a head with a metal knob. The nut holding the flywheel is unscrewed with a 13mm head.

To block the crankshaft from turning, you need to unscrew the spark plug and install a piston stopper through the spark plug hole; if there is none, you can use an old cord from the starter, with knots tied to it and immersed in the cylinder through the spark plug hole.

It is strictly forbidden to keep the flywheel from turning by installing a power screwdriver or other tools between its ribs and the body; with this method of blocking from turning, the flywheel blades are not able to withstand the load and break off.

Once the piston in the cylinder is locked, you can unscrew the flywheel nut. The thread in the nut is normal, so you need to turn it to the left. Having loosened the nut, you do not need to remove it completely; just unscrew it until its upper edge is level with the tip of the shaft, after which a soft metal drift is installed on the nut and a sharp blow is made on it. Thus, the flywheel jumps off the shaft from a sharp impact and can be easily removed without the help of additional tools.

How to check the receipt of an impulse from the engine crankcase

Repair of Shtil chainsaw in case of fuel supply system malfunction

• unscrew the spark plug;
• draw 1–2 ml of fuel into a syringe and pour it into the spark plug hole;
• install the spark plug in place and put the cap of the high-voltage wire on it;
• set the control lever to the hot start position;
• Pull the starter handle several times.

If these actions helped start the Shtil chainsaw engine, but it stalled almost immediately, then the problem really was a lack of fuel supply. To fix it, you need to check the fuel system.

The fuel pump is located in the carburetor. Its operation is carried out by the receipt of impulses from the engine crankcase through the impulse channel. The channel is located in a rubber pipe through which the cylinder and carburetor communicate.

If the pulse channel becomes clogged, the quality of the fuel supply decreases or it does not arrive at all. To gain access to the pipe, you need to remove the air filter housing and carburetor. After this, the channel is checked or cleaned using a metal wire.

Adjusting the idle speed of the Shtil 180 chainsaw carburetor

The design of the Shtil 180 chainsaw contains many rubber parts. All of them require systematic inspection for cracks and other defects. If they are present, the parts are replaced with new ones.

Another reason for the lack of impulse may be depressurization of the Shtil chainsaw engine crankcase. In this case, the air supply to the pump is reduced or completely stopped.

Check the tightness using a vacuum gauge. If it is absent, a medical syringe will come to the rescue. The operation is carried out on an engine with the carburetor removed. Take a little motor oil into the syringe and pour it into the impulse channel, and then pull the starter handle.

If there is no pulse, the oil will remain in the channel. This problem can be resolved by disassembling the engine and replacing the seals. If the oil is squeezed out of the channel, the problem probably lies in a pump malfunction.

Removing the clutch and oil pump drive

Before disassembling the clutch, it is necessary to remove the drive sprocket. To do this, carefully remove the lock washer from the grooves on the shaft and remove the sprocket and needle bearing.

With a high head of 19, you need to unscrew the clutch. The thread on it is left-handed, so it unscrews towards the bar, and not towards the rear of the Shtil 180 saw.

Having unscrewed and removed the clutch, you need to immediately remove the reflecting plate and the oil pump drive; this is easy to do, since they are put on the shaft without any fastening.

Carburetor, muffler and ignition coil

To remove the carburetor, you need to have a socket 8 and an extension, with which it is convenient to unscrew the nuts securing the carburetor and air filter. Before dismantling the carburetor, it is necessary to disconnect the ignition wire and choke rod from the engine control lever and remove the lever, only after this the air filter and carburetor are removed.

The Shtil 180 muffler is secured with two nuts, which you need to unscrew to pull it towards you, it can be easily removed.

The coil is secured with two screws; to remove it you just need to unscrew them.

Basic malfunctions and their elimination

If you cannot start the saw the first time, there may be several reasons. Most often the problem is related to the spark plug:

• wear of the electrode or damage to the ceramic insulator;
• loose fit of the removable cap (if any);
• sparks flying along the ceramic winding, a sign of which is a brown residue on the outer shell;
• cracks in the spark plug cap (a saw with this problem will continue to work, but may cause pain to the user when touched).

If no problems were found with the spark plug, it is recommended to inspect the wires coming from the coil. They may be torn or have other mechanical damage. Wire breaks inside the insulation are possible, so sometimes these violations cannot be detected by visual inspection.

The cause of the breakdown may lie in the shutdown switches. It's easy to check them. To do this, you need to disconnect the wires from the module and then check the ignition. If a spark appears after switching off, the switch must be replaced.

Expert advice

When repairing a carburetor, you must remember that it is a complex assembly consisting of rings and many parts. This means that cleaning and repairs must be carried out with extreme care. If the tool stalls or does not start, then in addition to the carburetor, it is necessary to check the spark plugs. If they are faulty, they are curled and dried.

Additional fuel can be drained through a special hole. Malfunctions of the Calm 180 chainsaw and their elimination are partially described in the instructions. After reading the article, you can understand that the candles must be dried for at least half an hour, after which the candle can be installed in place by starting the device.

Possible reasons for setup ineffectiveness

If the work performed did not give the desired result, the reason for the failure may be:

• unclear operation of the ignition system;
• clogging of the jets or reduction of their cross-section with resinous deposits, which can be removed by washing in acetone;
• When the carburetor threads are loosened, a gap may form through which air can leak.

After eliminating the detected deficiencies and malfunctions, it is recommended to repeat the carburetor adjustment in the standard sequence. If re-tuning is not effective, you must use the services of service specialists.

Unstable engine operation can also be caused by:

• air leakage through the crankshaft seals and the cylinder seat;
• Poor sparking of the electronic ignition system cannot be ruled out.

Complex faults can only be fully eliminated if appropriate repair equipment is available.

Removing and disassembling the engine

The engine is held in place by 4 screws installed on the bottom of the Shtil 180 chainsaw. To remove it, you need to unscrew them, and then carefully remove the engine from the seat and the rubber carburetor pipe.

To disassemble the engine, 4 crankcase screws are unscrewed and it is removed, then you can remove the crankshaft assembly with oil seals, bearings and piston rings.

Removing bearings and seals usually does not require additional tools, but if the bearings were pressed onto the shaft with force, then a special puller will be needed for dismantling.

To remove the piston from the connecting rod, you will need to remove the retaining ring from the seat using a thin screwdriver, then press out the piston pin from the opposite side, after which the piston is removed to the side.

What do we need to send?

In order to arrange delivery we need the following information:

• Last name, first name and patronymic of the recipient
• Main phone
• Spare phone (if available)
• Series, number and date of issue of a driver's license, passport or other identification document ( for TC PEK and Baikal Service
  )

We understand some people's concerns—not everyone wants to give out so much information about themselves. Unfortunately, this data is required by the transport companies PEK and Baikal Service themselves.

.

Before handing over the goods to you at the point of delivery, they will compare the details of your document with those declared. If they do not match, then you will not be given the cargo, even if the full name is the same (because the full name of different people can be the same!).

There's absolutely nothing to be afraid of here

- This is standard practice for all transport companies.
Knowing 3 numbers from your passport or license, you can’t do
even if you want to.

The consignee (individual) must present an identification document, the details of which were declared by the consignor when handing over the cargo to the Forwarder.

Violation of tightness

But if you notice that oil is flowing into the chain, the cause of the malfunction may be a loose connection between the oil tank hose and the oil pump. To fix the problem, you need to disassemble the tool. If the hose is damaged, it is recommended to replace it. Sometimes it is sealed with a special compound. First, the surface must be degreased and washed. Sometimes the oil filter breaks, in some cases it becomes clogged. In this case, oil may also leak. In this case, the filter is checked, cleaned or replaced with a new one.

Assembling the Shtil 180 chainsaw

Putting the stihl ms 180 saw back together is quite simple, the main thing is to adhere to the following algorithm:

1. Install the piston on the connecting rod, the arrow on the piston should point in the direction of the Shtil 180 chainsaw, and to the left of the piston should be the side of the crankshaft, which is intended for installing the flywheel;
2. Carefully insert the piston back into the cylinder, the place for mounting the coil should be on the side where the flywheel is installed on the crankshaft;
3. Install the bearings, seals, retaining ring on the shaft and lower the entire assembly into the seat in the cylinder;
4. Next, degrease the crankcase installation site and the crankcase itself, then coat it with sealant and, once installed, tighten the 4 fastening screws;

To assemble the Stihl 180 saw after the engine has been assembled, you need to follow the reverse disassembly sequence. It is important to treat the process carefully and do not forget to install the rods on the carburetor and connect the ignition wire.

Below you can watch the disassembly of the Shtil 180 in the video, it was made for inexperienced users, it shows the whole process in detail.

Disassembling the Shtil 180 chainsaw and assembling it, if you have some experience, is quite simple; the main thing is to thoroughly clean the saw before work and take your time. To ensure that small parts do not get lost, you need to use containers in which you should place spare parts during the process.

Checking the fuel system

The gap between the ignition coil and the chainsaw flywheel

You won't be able to look inside the ignition unit. And the reason for this is the non-demountable design. In service centers, its functionality is checked using a special tool. It will be possible to troubleshoot problems at home if you replace the unit.

But before you run to the store for a new ignition unit for the Stihl chainsaw, you need to make sure that the problem does not lie in the incorrect gap between the contacts of the flywheel and the ignition module. The reason for the lack of a spark can be either too large a gap or its complete absence. In the latter case, the flywheel will begin to come into contact with the module contacts, as a result of which scratches will form on it.

Chainsaw starter device

• remove the starter;
• loosen the screws securing the ignition module;
• place a plate cut from an ordinary plastic bottle between the module and the flywheel;
• tighten the screws.

If all these manipulations result in a spark, the Stihl chainsaw is ready for further work. Otherwise, you will have to re-inspect. If the inspection again reveals a lack of clearance, you will have to look for the cause in the crankshaft bearings.

The Shtil chainsaw may not start even if there is a spark. In this case, it is necessary to look for problems in the operation of the fuel system. To do this, you need to inspect the spark plug for wet deposits. Its presence indicates excessive fuel supply. When the fuel mixture begins to literally flood the spark plug, it cannot ignite it.

Faulty chainsaw spark plugs

• unscrew the spark plug;
• turn the Shtil chainsaw over, draining the fuel;
• in the same state, pull the starter handle several times to remove any remaining fuel;
• screw the spark plug into place;
• set the engine control lever to the hot start position;
• pull the starter handle several times.

All these manipulations must be carried out with the ignition off, positioned as far as possible from open fire.

If the problem was improper starting of a cold engine, “blowing it through” will help return the Stihl chainsaw to performance. If even after “blowing” the Shtil 180 chainsaw does not start, you need to look for a solution to the problem in the carburetor.

First you need to check the condition of the fuel filter. To remove it, you need to unscrew the fuel tank cap. Next, aluminum wire with a bent end will come to the rescue. With its help, remove the fuel hose, at the end of which there is a filter.

Chainsaw device Shtil 180

The condition of the filter can be checked by blowing into it. If air does not pass through, then the filter needs to be cleaned or replaced. If air flows freely, you need to look for a blockage in the fuel hose by disconnecting it from the carburetor. The blockage can be cleared mechanically or by replacing the hose.

If the fuel hose and filter are clean, but fuel does not flow to the spark plug, the cause may be a malfunction in the air pulse supply to the fuel pump.

There is a membrane in the pump body, which during movement ensures the supply of fuel to the carburetor and engine. If the Stihl MS 180 chainsaw does not start, the diaphragm may have ruptured. You can check its integrity by removing the pump cover. If any defects are found during the inspection, the membrane is replaced.

Chainsaw repair Shtil 180

Question: During operation, the stihl ms 180 c chainsaw stopped idling and stalled. I started it with difficulty, but stalled again at idle.

After this it doesn't want to start. The next day, after unsuccessful attempts to start it, I removed and washed the air filter. It didn’t help, I had to remove the spark plug - it turned out to be dry, although there were plenty of attempts to start it.

I cleaned the breather with a needle (it was not clogged). I changed the fuel filter (although the old one was not visually dirty). I cleaned the carburetor and installed a new spark plug just in case. The saw won't start! I unscrewed the spark plug again - it was dry. What to do?

Answer: Remove the muffler. Look at the piston, if there are longitudinal stripes on it, then it needs to be replaced.

Question: What is the difference between the drive and chain sprocket of the Stihl 180 chainsaw?

Answer: There is no difference between a “drive sprocket” and a “spin wheel”; these are different names for the same part.

Question: I bought a Shtil ms 180 chain saw, I really liked it, but I want to ask you, can my saw cut thick wood?

Answer: The standard length of the MS 180 bar is 35 cm, it is possible to cut a log of 70 cm in diameter, if logs of this diameter predominate, then you need a chainsaw of greater power.

The MS 180 will, of course, cope with the task, slowly and surely sawing all large-diameter logs, but you need to remember that by giving heavy loads to a device not designed for this, you (at best) reduce the service life of the chainsaw, that is, bring its major repairs closer .

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Question: Please tell me, is it possible to use a 45 cm guide bar on a Stihl 180 chain saw?

Answer: The MS 180 chain saw can be equipped with a bar of maximum length 40 cm.

Question: Where is the breather located in the Shtil ms 180 chainsaw?

Answer: The ventilation system valve (“breather”) is located “on top” of the gas tank and oil tank, it cannot be seen visually, because everything is covered by the starter housing.

Question: On the MS 180, the gas button gets stuck in a horizontal position. What to do?

Answer: Most likely, the lever-traction mechanism is faulty; when the unit is turned over, one of the levers or rods “falls”.

Question: Why does the cylinder heat up and when it heats up, does the Stihl 180 chain saw stall?

Answer: The problem is in the ignition module, perhaps there is no compression (necessary).

Question: We use a Stihl 180 chainsaw with a standard bar; we recently found out that people are installing a Carving bar on this model. According to the catalog, you can install a 30 cm tire of this type, but is it possible to install a 25 cm tire or is it not possible on this model?

Answer: Carving has a very small nose radius. It is better to use a chain with a 1/4 pitch with this tire. And this is where the problems begin. Chains like this are very rarely available in retail, and in addition to the 180th, you can also find a 1/4 sprocket.

Maybe it makes sense to look for a 30 cm Rollomatic Mini tire on 3/8 1.1. Its article number is 3005 000 3905, if I’m not mistaken. She has a small nose with a 7-tooth star. Somewhat larger than Carving, but not so picky about lubrication.

Question: Where should the arrow on the piston point to the muffler or vice versa on the Stihl 180 C chain saw?

Answer: The arrow should point towards the muffler (the rule for all STIHL chainsaws).

Question: Tell me, what is the clutch thread (left or right) on the MS 180 chain saw?

Answer: All STIHL chainsaws have a left-hand thread on the clutch.

Question: The starter on the Shtil ms 180 chainsaw pulls out jerkily, what is the reason?

Answer: There may be several reasons - from a faulty starter (starter spring, etc.) to a faulty cylinder-piston group.

Question: Why is there play in the chain sprocket on the Stihl 180 chainsaw?

Answer: The clutch cup needle bearing is worn out, but even on a new saw the chain sprocket has minimal play!

Question: Shtil 180 chain saw. Second fill of gasoline, full tank. Gasoline is seeping from below. Why?

Answer: The gas hose rubber could have popped out and could overflow through the gas tank breather. The first needs to be corrected, the second is acceptable!

Question: On the Stihl 180 chainsaw, the chain does not move during operation while the brake lever is in the middle position, and only begins to rotate when you move it towards you. What can be wrong?

Answer: The chain brake on a chainsaw has two positions: extreme, “pull-away”, - this is the brake in the working position “on”, the chain does not move; the extreme “towards you”, move it until it clicks - this is the brake in the cocked position, the chain rotates.

You most likely have the brake on, you need to move the handle to the extreme “towards you” position, i.e. Pull the handle until it clicks and if this does not help, then the brake is faulty and you need to contact a service center!

Question: How to properly adjust the carburetor of the Shtil MC 180 chainsaw?

Answer: On the Stihl 180 chain saw, only the idle speed is adjusted, since the carburetor is rolled and adjusted at the factory. The idle speed is adjusted so that the chain does not rotate at minimum speed, or according to the tachometer.

Question: Tell me what to do. The Shtil 180 chainsaw does not start. There is a spark, but the spark plug floods and does not want to start. Where to start repairing or disassembling?

Answer: All repairs must begin by removing the muffler and seeing what the piston looks like.

Question: The Stihl MS 180 chainsaw does not stall when moving the lever up, I turn it off with the air damper, what should I do?

Answer: By moving the lever up, you interrupt the contact, in your case the contact is not interrupted, the contact spring has “moved away” (bent), the contact spring wire may be broken, the control shaft (the lever that you lift up) is worn out.

Question: Tell me how to replace the clutch springs on a Shtil 180 chainsaw?

Answer: clutch springs can be replaced even without removing the clutch. All you need is a small but strong hook made of strong wire and a standard spark plug wrench. We remove the cup, put the key on the hexagon of the coupling and use the hook to unhook the stretched spring.

We immediately put a new one in its place - it’s simple. We hook one hook of the spring with our fingers, and use the hook to pull the second hook into the hole. It will catch, then we push it with a screwdriver so that it fits into the hole properly.

We turn the crankshaft 1/3 of a turn, put the key on the hexagon again, hold it from turning and also replace the spring with a new one. Next - the third. We put the cup in place and work. You can also check the condition of the springs with your fingers.

The stretched spring allows the weights to move on the cross and can be removed very easily. When we replace the springs with new ones, the clutch should become like a monolith and it is not possible to pull the weights off with your fingers, only if you push against it with a screwdriver.

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