Chainsaw chain lubricationA chainsaw, whether it is household or professional, requires maintenance. It does not matter whether you use it every day or take it out for sawing firewood only once every six months - if you do not monitor the condition of the tool, it will soon become unusable.

There are several rules for caring for a chainsaw. Caring for your chainsaw chain The chain may become dull after prolonged use. Cutting in this case will be much more difficult to do. Therefore, from time to time it should be sharpened, as well as lubricating the chainsaw chain.

For this purpose, chainsaw chain oil is suitable (you can use automotive oil). It is important that a small amount of chain oil remains after the fuel mixture is completely exhausted. Refueling the chainsaw Of course, the chainsaw cannot be refueled with pure gasoline.

It is diluted with oil in a ratio of 1:50. The brand of gasoline must be at least 92. At the end of work, make sure that the mixture does not remain in the tank, as it is not subject to long-term storage. At best, it can be stored for about a month, then the oil oxidizes, which leads to a chainsaw breakdown.

Checking the tightness of the nuts This check must be carried out each time before starting work. The chainsaw has quite a lot of vibration, so the screws and nuts can loosen soon. Operation of a chainsaw, the parts of which are poorly fixed, becomes unsafe.

Checking candles Checking should be done for the presence of carbon deposits - it should not be there. Otherwise, it is better to replace the candle with a new one. Improper dilution of the mixture can lead to soot, so you should pay attention to whether you are violating the proportions and whether you are using a mixture that has already become unusable.

Choosing the right chain Chainsaw chain oil. You can't do without it! In order for the chain to work well, it is necessary not only to lubricate the chainsaw chain. Of considerable importance is the selection of the chain in accordance with the power of the engine. So, for example, a less powerful engine is not able to pull a chain with a wide tooth pitch through the cut.

She is able to "bite" into the wood deep enough, but a low-power engine is not able to pull her out of there. Naturally, you need to remember that even with the correct selection of the chain, you must still use oil to lubricate the chainsaw chain. At proper care and operation of the chainsaw will last long enough and you do not have to spend money on its thorough repair.

How

For high-quality operation of the chainsaw and increase its service life, it is required to periodically adjust the carburetor. Depending on the brand of the saw, the adjustment scheme may be different, but general principles are saved. To adjust the saw, it is necessary to change the quality and quantity of the fuel mixture that is supplied to the engine cylinder. Consider the process of adjusting the carburetor using the Ural chainsaw as an example.
Instruction

1 Proceed to adjust the idle speed, guided by the requirements specified in technical documentation. By adjusting the idle speed of the saw engine, ensure that the engine runs stably and the saw chain does not move along the bar. There should be no engine smoke. When you pull hard on the throttle control, the engine should rev up quickly.

2 Start the engine and warm it up at low to medium speed. Using a screw, achieve stable operation of the unit at such speeds at which the chain does not move along the tire. With strong engine smoke, partially tighten the carburetor screw to lean the mixture. At the same time, the exhaust smoke will decrease, and the speed will increase.

3 Now set the minimum speed again by loosening the screw a little. This is required to check the throttle response of the engine. Firmly press the throttle lever all the way down for about 3 seconds. The engine will then pick up speed. If the engine stalls or picks up speed slowly, loosen the carburetor screw slightly. In this case, the engine speed will decrease. To increase the number of revolutions, tighten the screw, and then check the throttle response of the engine again. After completing the adjustment, fix the screw with locknuts.

4 After adjusting the idle speed and adjust the engine to maximum power. Adjustment is carried out with a carburetor screw at the optimum operating mode of the engine. When you partially turn the screw in, the mixture is leaner, when you unscrew it, it is enriched. The most advantageous position of the carburetor screw is determined experimentally when sawing.

5 Be careful when adjusting the carburetor. Due to lack of experience, a complete misalignment of the device is possible, which can lead to difficulty starting the engine and unstable.

352.

A carburetor such as we will consider is installed on many saws of similar brands such as Poulan, Mc Culloch, Max Cut.

We unscrew all three screws (as shown on the signs) and remove the top cover of this saw from the body.

We remove the air filter from our housing (shown in the figure) - a filtering foam rubber air element (green foam rubber in the figure).

We unscrew two nuts at once, and remove the air filter housing itself.

In order to remove the housing of this air filter, it is simply not enough to simply remove it from two bolts. He won't take off. He will interfere with the protrusion, which is indicated on the arrow.
It is necessary to apply a very small upward force to the filter housing, until the protrusion is slightly higher than the upper very edge of the chainsaw crankcase, and remove.

We work on the right side of the carburetor. We remove the fuel hose (as in the upper arrow) and then the air damper actuator rod.

We finally remove the carburetor and remove the tip of this cable from the throttle actuator lever.

On the left side of us, we also pull the gasoline hose together with the carburetor fitting.

The carburetor is now removed and ready for further disassembly.

In the example we are considering - a chainsaw, confusing, that is, there is no gasoline in the gas tank. Therefore, when we removed the gas hose on the right side of this carburetor, the fuel did not come out of the hose at all. Your tank may also be full, and therefore, after working with a saw, not much time may pass.
The fuel in the tank during operation is under slight pressure, therefore, after removing the hose from it, fuel will begin to flow out.

Prepare in advance a clothespin or clamp or an ordinary 13 cm nut.

We completely unscrew the idle speed screw and the screw securing the carburetor cover from above.

Then remove the top cover. An area of ​​​​the carburetor will open, which is called - the fuel pump where the blue transparent gasket is the fuel membrane.

On the left side of the carburetor, remove two screws (according to the instructions, the screws are marked L and H), before that, having removed the spring clip from them. When assembling the carburetor, these screws cannot be confused, there is an annular groove on the H screw, if it is not there, mark it with any screw.
We remove four screws from below and remove the very bottom cover of the carburetor.

Remove this needle valve assembly. For this purpose, remove the screw indicated by the arrow in the figure. Under the two-arm lever, do not lose, there is a small spring.

Dismantled parts in disassembly.

We dismantle the axis of the air damper. To do this, we apply the necessary force directed along the axis. The arrow in the figure shows the hole, which must be closed when the axle is removed, since the spring-loaded ball is located in it.
Here is the throttle valve. We unscrew the screw and you can remove it.

We remove the screw shown by the arrow and behind it the drive lever of this throttle valve.

Here I want to pay attention to three screws similar to each other. 2 and 3 are screws fixing the flaps (interchangeable). 1 is the screw for securing the actuator lever of this throttle valve, it is very similar to the previous two, but it is longer than them. You can not confuse them when you collect the carburetor!

The last operation for such a disassembly of the carburetor is to remove the entire throttle axis.
The photo below shows this in what position such a throttle axis is on a fully assembled carburetor.

We rotate this axis 180 degrees clockwise (to be honest, the axis itself will turn like this under the action of the spring). It will take the same position as in the photo below.
Only exactly with SUCH !!! position of the axis, we proceed to remove it carefully from the carburetor body.

The photo below shows the moment of dismantling this throttle axis. The thumb of the left hand covers the holes in the carburetor body. If this is not done, then you will have such an opportunity to look for one very small detail on the floor.

A chainsaw (gasoline saw) is a chainsaw that runs on gasoline.

It is used for cutting materials of various structure and hardness. consists of a massive handle with a control system.

The working tool of the chainsaw is represented by a tire with a moving chain along the side. On the outer surface of the chain are teeth that produce direct sawing. The chainsaw is distinguished by its versatility in areas of application: construction works, firewood, for decoration personal plot and etc.

Chain saws are available in electric and petrol versions. So, electric saws are lighter and quieter, but gasoline-powered saws are mobile and autonomous, they are not connected to the electrical network, and their range is wider.

Due to the need to place a fuel tank, the design of gasoline saws is heavier. Chainsaws are divided into household, semi-professional and professional. When choosing a chainsaw, be sure to pay attention to the power of the tool and the type of saw chain.

How to repair a Stihl chainsaw with your own hands

• Main types and diagnostics of defects, tools for their elimination
• Fuel system malfunction
• Elimination of defects in the trigger mechanism
• Malfunctions of the cylinder-piston group of the chainsaw

With all the variety of modern building materials, wood species remains very burning. Therefore, woodcutters, landscaping workers, summer residents are interested in woodworking tools, including chainsaws.

The Stihl chainsaw is easy to operate, inexpensive, reliable, and has a long service life.

Different people prefer different brands. Someone is interested in the Partner chainsaw, someone is interested in a Stihl device, someone else is something else. But they all periodically break down, while their breakdowns are both similar to one another and different. Next, we will consider the repair of the Stihl chainsaw with our own hands.

This brand is well known both among experts and among individuals involved in arranging their own living space. The great popularity of the Stihl chainsaw causes frequent practical use this tool and forces us to find methods for effectively combating its usual breakdowns.

The main types and diagnostics of faults, tools for their elimination

The design of the chainsaw Stihl.

Before you start disassembling a faulty mechanism, you should prepare the proper tools. Because a chainsaw is a relatively uncomplicated piece of equipment on a technical level, this list is short and includes:

• Screwdriver Set;
• spanners;
• set of socket wrenches;
• needle.

In order to carry out a real high-quality restoration of the working condition of the Stihl chainsaw with your own hands, you need to accurately establish the prerequisites for the breakdown. Since the specified chainsaw refers to mechanisms driven by an internal combustion engine, the main malfunctions are associated with this particular unit.

The most common Stihl chainsaws in operation are the following malfunctions:

• lack of engine start;
• unbalanced operation of the internal combustion engine immediately after starting, as a result of which, after a short-term operation, the unit spontaneously turns off;
• a running engine does not reach full power;
• oil is leaking.

Stihl chainsaw carburetor device

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One of the frequent breakdowns of the saw device is also a break in the working circuit. But it does not apply to the dilemmas that arise when working motor system. Usually, repairing a broken chain comes down to replacing it with a new one.

The search for a malfunction that led to the failure of the chainsaw is done in the following order. First check the level of gasoline in the tank. If everything is in order with the level, you should proceed to inspect the trigger. If the trigger does not show signs of failure, you need to pay attention to the spark plug.

If, as a result of a painstaking inspection and verification of the correctness of the gap, it is established that the candle is completely serviceable, then the carburetor may be the cause of the problems that force the chainsaw to be repaired. This often happens due to the fact that this device is routinely clogged.

But if an old candle is replaced with a new one, the carburetor is one hundred percent cleaned, and the chainsaw still does not start or, having earned, quickly stalls, then the faulty cylinder-piston group (CPG) may be to blame. In order to perfectly check the entire group, you will have to spend some time, actually disassembling the designated system one hundred percent. In this case, the technical condition of the cylinder, piston and piston rings is checked.

Now let's take a closer look at each failure.

stihl 180 carburetor repair

repair cleaning stihl 180 carburetor.

Stihl ms 180 carburetor repair

How to repair carburetor on a chainsaw Calm ms 180 .

Fuel system malfunction

As mentioned earlier, the examination of a faulty sawing tool must begin with the determination of the presence of gasoline in the fuel tank, as well as the technical condition of the breather.

Chainsaw repair Stihl in case of a malfunction of the fuel supply system.

When checking the fuel level, it is imperative to open the gas tank cap. This must be done even if the owner of the tool is sure that there is gasoline in the tank.

Often the saw cannot start due to the lack of fuel in the combustion chamber. The reason for this is most often an ordinary clogging of the breather - a special bypass valve that serves to equalize the pressure in the tank with a gradual consumption of gasoline. Chainsaw carburetor device, checking the operation of the chainsaw after adjusting the carburetor. In this case, repairing a chainsaw comes down to carefully cleaning the breather with an ordinary sewing needle.

Trigger Troubleshooting

The reason for the failure of the entire tool may be an inoperative trigger mechanism or problems in the ignition system. If it turns out that the starting device is operating normally, then you need to make sure that the candle is working. In order to do this, the candle is turned out of the socket and carefully examined, paying attention to the presence of foreign deposits on its electrodes.

Chainsaw starter device.

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It is worth noting that the presence of traces of a certain property at the place of formation of a spark speaks very eloquently about the sources of the "disease" of the entire starting system. Such a source, in particular, can be a carburetor. So, the complete absence of any signs of fuel on the candle (its complete dryness) most likely indicates the failure of the fuel to pass into the combustion chamber due to the complete clogging of the carburetor.

It is possible to find out the degree of wear of parts only after removing the piston group from the motor. The rings themselves should be tight enough and at the same time sit freely on the piston. The presence or absence of wear of the piston and rings can be verified experimentally. To do this, the piston inserted into the cylinder should be slightly swung in different directions. Too much free play on the piston is most likely a sign of wear.

To eliminate this defect, either the cylinder is bored and repair parts are installed, or the entire CPG set is changed. Otherwise, the chainsaw will not develop the required power.

Malfunctions in the lubrication system and their elimination

Chainsaw repair is also required if there are problems with the lubrication system. Most often they consist in the lack of oil supply to the chain, as evidenced by the obvious dryness of the latter, or in oil leakage.

The lubricating fluid either poorly or does not enter the chain at all, as a rule, due to clogging or complete clogging of the oil supply channels. To identify the places where the oil flow is blocked, it is necessary to carefully inspect the oil hose and its connection points. In addition, be sure to clean the oil filter.

If oil leaks, then this indicates a violation of the tightness of the oil channels or hose. As a rule, this happens due to mechanical damage. Most often, the unusable hose is removed, and a new one is put in its place. But sometimes a less radical method is used, treating the damaged hose with an appropriate sealant.

With all the variety of modern building materials, wood species remains very burning. Because lumberjacks, landscaping workers, summer residents are interested in woodworking tools, in particular chainsaws.

The Stihl chainsaw is easy to operate, inexpensive, reliable, and has a long service life.

Different people prefer different brands. Someone is interested in the Partner chainsaw, someone is interested in a Stihl device, someone else is something else. However, they all periodically break down, while their breakdowns are both similar to each other and different. Next, we will consider the repair of the Stihl chainsaw at home.

This brand is well known both among experts and among individuals involved in arranging their own living space. The great popularity of the Stihl chainsaw determines the frequent practical use of this tool and forces one to find methods for effectively fighting with snowballs with its usual breakdowns.

The design of the chainsaw Stihl.

While disassembling the faulty mechanism, you should prepare the proper tools. Because the chainsaw is essentially a relatively uncomplicated device at the technical level, this list is short and includes:

• Screwdriver Set;
• spanners;
• set of socket wrenches;
• needle.

If you set a goal to carry out a real high-quality restoration of the working condition of the Stihl chainsaw on your own, you need to accurately establish the prerequisites for the breakdown. Since the indicated chainsaw refers to mechanisms driven by a gasoline engine, the main malfunctions are associated with this unit.

The most common Stihl chainsaws in operation are the following malfunctions:

• lack of engine start;
• unbalanced operation of the internal combustion engine immediately after starting, under the influence of which, after a short-term operation, the unit spontaneously turns off;
• a running engine does not reach full power;
• oil is leaking.

Stihl chainsaw carburetor device

One of the frequent breakdowns of the saw device is also a break in the working circuit. However, it does not apply to the dilemmas that arise during the operation of the motor complex of accounting programs. Usually, repairing a broken chain comes down to replacing it with a new one.

The search for a malfunction that caused the chainsaw to fail is done in the following order. First of all, the level of gasoline in the tank is checked. If what remains to be done by our client is in order with the level, proceed to inspect the starting device. If the trigger does not show signs of failure, the spark plug should be noted.

Read also

If, during a painstaking inspection and verification of the correctness of the gap, it is established that the candle is completely serviceable, then the carburetor may be the cause of the problems that force the chainsaw to be repaired. This often happens for the reason that this device is routinely clogged.

But if an old candle is replaced with a new one, the carburetor is completely cleaned, and the chainsaw does not start in any case, or, having earned, quickly stalls, then everywhere and in everything, the faulty cylinder-piston group (CPG) is probably to blame. In order to perfectly check the entire group, you will have to spend several days dismantling the designated system by 100 percent. In this case, the technical condition of the cylinder, piston and piston rings is checked.

STIHL MS 180 How to adjust carburetor STIHL chainsaw MS 180

As mentioned earlier, the inspection of a faulty sawing tool should begin with establishing the presence of gasoline in the fuel tank, as well as determining the technical condition of the breather.

Repair of the Stihl chainsaw in case of a malfunction that allows accounting (software) of the fuel supply.

When checking the fuel level, be sure to open the gas tank cap. This must be done even for which the design is intended, if the owner of the tool can be sure in such a context that there is gasoline in the tank.

Often the saw does not have the right to start due to the lack of fuel in the combustion chamber. The prerequisite for this in most cases is the usual clogging of the breather - a special bypass valve that serves to equalize the pressure in the tank with a gradual flow of gasoline. Here, chainsaw repair comes down to carefully cleaning the breather with a regular sewing needle.

A prerequisite for the failure of the entire tool may be an inoperable trigger mechanism or difficulties in the ignition system. If it turns out that the starting device works as a rule, then you need to make sure that the candle is working. To do this, the candle is unscrewed from the socket and inspected closely, looking for the presence of third-party plaque on its electrodes.

Chainsaw starter device.

It should be noted that the presence of traces of a certain characteristic at the place where the spark was formed speaks very sweetly about the sources of the “disease” of the entire starting accounting system. Such a source, for example, and possibly a carburetor. So, the complete absence of any signs of fuel on the candle (its complete dryness), most likely, indicates the failure of the fuel to enter the combustion chamber due to a workable version of the clogged carburetor.

When gasoline is fixed on the spark plug of the chainsaw, and the cutting device itself does not work normally, this indicates an excess of air-fuel mixture. The prerequisite for such a state, you, is a failure in the carburetor adjustments, clogging of its jets, and in addition, an incorrect start of the mechanism. For which the design of fixing the corresponding soot on the candle is intended, of course, with sufficient confidence to talk about the incorrect functioning of the carburetor, as it is also called, about the use of low-quality gasoline.

With all the above signs reflected on the spark plug, you need to remove the carburetor and check its technical condition. If a blockage is detected, the carburetor should be carefully cleaned, then the device should be adjusted according to technological requirements and change the used gasoline in the tank. With all this, you must always keep in mind that the carburetor is essentially a rather complicated assembly, consisting of a huge number of small components, parts and tubules. Therefore, its repair must be carried out with special care and accuracy.

Read also

In addition to restoring the carburetor, you need to check on the shield and the performance of the spark plug itself, if necessary, set the correct gap here. On the contrary, the candle and its work do not like at all, it is recommended to replace it with the newest candle.

When the engine of the tool does not start up, it works differently with obvious interruptions and without reaching the rated and maximum power due to a malfunction of the cylinder-piston group. In this case, the repair of a chainsaw in artisanal conditions is done in the following sequence.

4 bolts are unscrewed on the cylinder head, after which the cylinder is removed from the block. The piston is painstakingly checked for the presence of chips, scratches, scuffs. Their presence is unacceptable and increases the change of the piston. However, there will be no slightest mechanical damage on the cylinder itself. It can either be repaired by means of boring a mirror to the repair size of the piston, or replaced with a new one assembled with a piston.

stihl 180 carburetor repair

Of great importance for ensuring rational pressure in the combustion chamber is the absence of signs of wear on the piston housing and piston rings. For this reason, the normal operation of the chainsaw motor is significantly affected.

To find out the degree of wear of parts, of course, only after removing the piston group from the motor. The rings themselves must be quite tight and at the same time sit freely on the piston. In place, in other words, the absence of wear on the piston and rings, there is an option to verify by experimental method. For this purpose, you should swing the piston inserted into the cylinder a little in different directions. A very loose stroke of the piston is most likely an indication of its wear.

To eliminate the indicated drawback, they either create a cylinder bore and install repair parts, or change the entire set of CPG. Otherwise, the chainsaw will not develop the required power.

Chainsaw repair is required and for which the design is intended, if there are difficulties with the lubrication system. In most cases, they are concluded without supplying oil to the chain, this fact is evidenced by the obvious dryness of the latter, or by oil leakage.

The lubricating fluid either poorly or does not enter the chain at all, usually due to clogging of the oil supply channels due to other working clogging. To identify the places where the oil flow is blocked, you need to look closely at the oil hose and its connection points. Already today, you should definitely clean the oil filter.

If oil leaks, then this indicates a violation of the density of the oil channels or hose. This is usually due to mechanical damage. In most cases, the worthless hose is removed, and a new one is put in its place. Alas, the least specific method is used, treating the warped hose with a suitable sealant.

Chainsaw Stihl 180 - device and adjustment of the carburetor

The throttle valve is installed in the carburetor body and is responsible for increasing the supply of fuel consistency specifically 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.

The 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 mounted on a shaft passing through the entire body of the carburetor. At the exit of the shaft from the housing, a mount for the gas cable is installed, a cone-shaped adjusting screw is located nearby, which is responsible for setting 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, opening or closing the damper on the contrary.

STIHL MS 180 How to adjust carburetor STIHL chainsaw MS 180

How to adjust carburetor calm ms 180 what are the min and max rpm? Also a similar video about adjustment on mine.

Carburetor adjustment STIHL Stihl MS 180

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air damper

The carburetor air damper is installed on the back side of the throttle and is responsible for starting a cold engine, it is controlled by the engine control lever. For a cool start, the air damper is completely blocked, for normal operation it is opened.

Adjustment carburetor Stihl 180

The carburetor of the Stihl 180 chainsaw, indiscriminately, can only be adjusted by the number of revolutions at idle. 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 very carefully described in the manufacturer's annotation.

If certain defects appear, and if you have experience, you can increase or decrease the fuel supply by increasing the gap when opening needle valve.

To increase the flow, the rocker of the needle valve in the distribution chamber must be bent up, and to decrease, down. This regulates the stroke of the needle and accordingly throughput valve.

You should not carry out the adjustment yourself, because 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.

Why the Stihl 180 carburetor overflows and several typical malfunctions

After we have examined the carburetor device, it is not difficult to determine the reason why fuel enters the combustion chamber in a larger volume. This happens 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, compressing, the gasket releases the diaphragm located on top of it a fraction of a millimeter down. She, in turn, puts more pressure on the rocker needle valve, it will open more than it should and the fuel will flow in excess (it will start to overflow).

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

When cleaning the chainsaw with compressed air, in no case should you blow into the fuel pipe, this can lead to a stretching of the diaphragm.

Frequent breakdown of the Stihl carburetor and how to avoid it

A common cause of carburetor failure on a Stihl chainsaw is a stuck valve in the nozzle. The reason for sticking is a violation of the chainsaw storage, more precisely the manufacturer's instructions Stihl 180 according to proper preparation to 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 boost valve, being in direct contact with the fuel, sticks to the body, as the gasoline gradually evaporates and only sticky oil remains. It is impossible to replace the nozzle, because they are not in the repair kit, you can only try to knock it out and rinse it, which is not always possible without damaging the nozzle.

Removal and installation algorithm

Where cleaning is required carburetor Stihl 180 or its disassembly, first you need to remove the assembly from the chainsaw. This must be done in compliance with a certain algorithm of actions:

1. Put the protective cover for the chainsaw on the bar.
2. Remove the top cover of the chainsaw.
3. Unscrew the two nuts securing the air filter and carburetor.
4. Remove the air filter housing.
5. Disconnect the wire from the engine control lever.
6. Carefully remove the lever from its seat in the housing, while disconnecting the air damper rod from it.
7. Pull the carburetor towards you and disconnect fuel supply, as well as throttle linkage.

To facilitate dismantling, you can additionally unwind the rear handle and disconnect the throttle link first from it, and then only from the carburetor. This may be required, because 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, because the seat on the saw body is the weak link of the saw, and very often inexperienced users break it.

Disassembly carburetor Stihl 180

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

Having opened the case, you should be extremely careful, because if debris gets into the inside of 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 on repairing a Stihl 180 carburetor can be viewed below. In it, the master talks in detail about the problems and clearly demonstrates the entire repair process.

Conclusion

In conclusion, I would like to note once again that the Stihl carburetors, which are produced by its subsidiary Zama, are very reliable. At correct operation and storage, are able to serve the entire period of the chainsaw without repair.

Adjusting the carburetor of the chainsaw We recommend that you adjust the carburetor of the chainsaw at a service center. because this process requires certain knowledge and experience. In addition, they are needed.

Do-it-yourself chainsaw carburetor repair Stihl 180

Chainsaw carburetor adjustment

We recommend adjusting the chainsaw carburetor at a service center. because this process requires certain knowledge and experience. In addition, special tools are needed: an adjusting key and a tachometer. We strongly advise against adjusting the carburetor on your own, but we are aware that there are situations when the service center is very far from you and there is no way to get to it, but the work is worth it!

If the chainsaw does not start, then read our article The chainsaw does not start. Husqvarna lawnmower carburetor adjustment. What to do?. and quietly and one by one go through all the points in order. If chainsaw start up, but does not gain momentum, or is unstable, or stalls at idle, then in this case, without the help of others, you can try to fix it.

First: Preparing for Carburetor Adjustment

Before adjusting the chainsaw carburetor, make sure that the air and fuel filters are clean. If you take on the adjustment of the carburetor, then obviously you understand where these filters are and how to check their condition. Next, inspect the carburetor adjusting screws. It happens that there is only one adjusting screw, like on a Stihl MS 180 chainsaw. Or they are completely absent, like on Husqvarna chainsaws with the AutoTune system. But, usually, there are three screws.

Second. idle adjustment screw T

Screw T is responsible for idling, is regulated by an ordinary screwdriver and, most importantly, it can be adjusted without fear of anything or spoiling it. But before adjusting it, we start and warm up the engine. After the engine warms up, we try to carefully adjust the T screw at idle. Lawn mower carburetor adjustment favourite. If you turn it clockwise, then idle speed should increase. When twisting - will decrease. Be sure to unlock the handbrake and by adjusting this screw, achieve stable operation of the motor, but if the chain starts to scroll, then slightly unscrew the screw so that the chain remains motionless at idle.

Third. what are the L and H screws for

We go over to the subsequent screws, they are also adjusted on a warm engine. They are designated L and H, they must be adjusted very carefully, and here's why. These screws are responsible for the quality and quantity of consistency when the motor is running. Intertool lawnmower carburetor tuning. And because, together with gasoline, lubricant dissolved in the consistency enters the engine, in other words, the risk of disrupting the lubrication process or exceeding the very permissible engine speeds. If you do not have a tachometer, then you cannot check this. In addition, you do not have a special key and you will have to pick up a hollow tube instead. And it can scroll and mislead you about the position of the screws when you want to return everything back.

Mark or note their placement before adjusting these screws. It is best to find the correct position of the screws in the reference tables. The tables indicate the number of revolutions by which it is necessary to unscrew the screw relative to the fully screwed state. This information is needed if someone before you or you yourself arbitrarily twisted the screws. If no one has previously violated their position, then it is possible to do without this data.

Fourth. elimination of failures in the set of revolutions

If the chainsaw starts, but when you press the gas trigger, you feel a drop in the set of revolutions, then try to adjust the screw L. Husqvarna gasoline trimmer carburetor device. Turn it a quarter of a turn in different directions and at the same time try the reaction of the motor to pressing the gas. Try to find a propeller position at which the acceleration of the motor will be uniform and frisky. It makes no sense to turn a larger angle, the screw cannot spin as much without the help of others, therefore a quarter of a turn should be enough.

Fifth: adjusting the maximum speed

Screw H is generally not better to adjust without the help of others. He is responsible for the quality of the consistency, which affect the highest engine speeds. Without the help of others, he also cannot go astray. Therefore, it will be enough if you turn it 1/8 of a turn in one direction or the other and achieve good engine operation at the highest gas in your opinion. But, I repeat, it is better not to do this without the help of others. Honda lawnmower carburetor. For a clear adjustment of the highest speed, you need to use a tachometer.

There are prerequisites that are not related to the carburetor, according to which the chainsaw will start poorly or work unstably. More common are piston wear and air leakage through seals or seals. In these cases, adjusting the carburetor and even replacing it will not help. You can find these prerequisites by measuring compression or crimping the motor. And this requires special equipment. It is in our service center. we can diagnose and determine the cause of the problem.

Do-it-yourself repair of a Stihl 180 saw carburetor

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? Do-it-yourself chainsaw repair Stihl MS-180. Useful with.

Repair chainsaw Stihl MS-180 do it yourself. Useful articles about chainsaws. Carver lawnmower carburetor adjustment. band sawmill

Stihl ms 180 carburetor repair

How to repair carburetor on a chainsaw Calm ms 180 .

stihl 180 carburetor repair

repair stihl 180 carburetor cleaning.

Do-it-yourself chainsaw repair Stihl MS-180. Useful articles about chainsaws.

Do-it-yourself MS-180 repair. Useful articles about chainsaws.

do-it-yourself chainsaw repair Stihl MS-180. Useful articles about chainsaws.

V Lately cases of treatment after self-repair have become more frequent. trimmers stihl (calm ms 180), husqvarna (husqvarna 142, 137), partner (partner 350, 351, 352, 372), homelite (homelight 3314, 4016), jonsered, echo, poulan, efco, etc. There is a lot of material on the Internet on self-repair petrol tool. Please do not attempt to repair chainsaws, trimmers, etc. do it yourself

Task: Bought a husgwarna saw. Can anyone help with advice on how to properly break it.

Solution: On Husqvarna saws originally carburetor set to a slightly richer mixture, while more lubricant comes with the fuel, this is done so that the saw runs at a lower (in relation to the norm!) RPM! It won't burn out at idle. The cylinder and piston do not need to be rubbed, they are covered with thin layers of chrome and are ready to go.

Running in is work without overloads! But not XX. no: When a car engine is run in, it is not driven at idle!

After such a break-in, Husqvarna recommends adjusting the speed in the service. There, the mixture is slightly depleted to normal, thereby increasing the max. saw speed and increasing productivity. This procedure is not required, but recommended. After it, the saw will become more economical and more productive.

There is an opinion that this procedure is a marketing ploy of the company that lures customers to its service centers, but objectively, such factory settings can reduce the risk of overheating of the saw in

the break-in period, and if not adjusted in the future, then they increase the resource, though to the detriment of fuel economy and performance.

Checking the functioning of all elements to ensure the safety of the chainsaw:

Check the chain brake at maximum acceleration (once a day)

Check the operation of the set and start lever

The chain should be taut, but free to move with your hand.

Do not spill fuel or oil when refueling. Prevent dirt from entering tanks when refueling.

Sharpen the chain after replacement and whenever necessary.

Having decided on the type of chainsaw, pay attention to its characteristics that you need to consider in order to make the right choice.

Masters and amateurs determine the life of a chainsaw in different ways. Non-professionals consider the end of a work resource a full exit

tool out of order, specialists - the first capital engine (or a decrease in compression by 40%).

Careful attitude to the tool will help to maximize the life of the chainsaw. Always select the optimal chainsaw mode for operation and do not allow significant overloads.

The cutting speed is directly affected by the condition of the saw set. If the chain is blunt, work efficiency will be significantly reduced, and the risk of tool failure, on the contrary, will increase. Adjusting the carburetor on a lawn mower video. This is due to the increased load on the engine. For this reason, it is recommended to correct the chain regularly. You also need to pay attention to checking the conformity to the norm of the shape of the cutting tooth and

What could be the reason why the Stihl MS 180 saw does not start?

Because If you had gasoline left in the tank, then by 80 percent you need to clean the carburetor - this is the first. Secondly, the saw starts if fuel is supplied to the cylinder, there is a spark and compression. The lack of fuel supply can be seen by a dry candle (we disassemble and clean the carburetor, change the fuel filter, clean the impulse channel). If there is no spark, then change the candle, if the replacement did not help, then you need to change the magneto. If there is no compression, then it is necessary to change the piston, cylinder and seals. Setting lawn mower carburetor huter. I advise you to start by removing the muffler and look at the condition of the piston (there are scuffs on the piston or not).

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If the Stihl MS 180 saw does not start, it is necessary to check the air filter, the supply of gasoline, and the performance of the candle. Although it is enough to open and then close the gas tank cap. Ventilate the combustion chamber. Remove and dry the candle.

The reason may be - the breather (valve) is clogged, then a vacuum forms in the gas tank when fuel is used up. Carefully clean the breather with a needle.

This, at your request, is an instruction for starting the saw, but about what you can sin if the saw didn’t start well, and now it doesn’t start at all - most likely the ringlets have already come to an end and there is no compression, which is why, if it starts by a miracle, having worked, it will heat up the piston, reducing the clearance, and then it will work normally. Needs to be repaired! It is not necessary to change the rings, the piston.

The second option - if the chainsaw, according to the norm, should not yet be so worked out that there is no compression, then the point is in the carburetor settings, you need to clean and adjust the carburetor, then rubbing the candle with sandpaper will not bring much benefit!

• I almost forgot the chainsaw can start badly if a lot of oil is poured into gasoline, or low-quality oil oil mixed with gasoline is special, not ordinary motor oil!

Therefore, advice - if you yourself are not afraid, you need to climb on the Internet and find information on repairing a piston and setting up a carburetor, if it’s scary it means taking it to a service, I’ll say that it’s okay to disassemble and repair a chainsaw, and spare parts in special stores are in bulk for all models, and full of online stores!

If the saw was with gasoline for a long time, but did not start, then pour the old gasoline out of the tank and pour in a new one, the saw will not start very quickly the first time, and then it will start working normally. If the candle is normal, then do not forget to check the spark, otherwise it is clean, but it is useless. Next, clean the air filter or replace it with a new one, and special attention should be paid to such an inconspicuous crack, which must always be clean, otherwise the saw will start with great difficulty, I marked this place with an arrow

Well, it’s not at all superfluous to check the gasoline filter that is in the tank, pull it out and clean it if it is dirty. Patriot lawnmower carburetor adjustment. If these measures do not help, then you will have to carry Calm to a specialist, which means something serious has happened.

Start by checking the gas. First drain the entire tank into glass jar and look for dirt, flush the entire system and fill in new gasoline, not forgetting the oil.

Check the air filter, replace if necessary.

Now we need to look at the candle and check it for the presence of a spark, in any case I would advise changing it, since we have already climbed there.

Well, the last thing is a piston check, perhaps there is a supply of a mixture of fuel and air, there is a spark, but the piston is so broken that compression is not created in the cylinder.

If it has previously been started from the fiftieth time, then it is worth giving it to the service, since maintenance of all systems is necessary. But the company and model are not bad. That is cleaning and the carburetor itself, and checking the condition of the pistons and rings. If, for example, oil is thrown into the combustion chamber, then, as you understand, there is nothing good in this. The fact is that the gasoline engine of a chainsaw is not much different from a car engine, and if it does not start, then its bulkhead is required, in the worst case.