The grass trimmer stalls when you press the gas causes

Diagnostic features

A well-posed question is already half the answer. The search for a solution will be significantly accelerated by the fact. under what circumstances a gasoline grass trimmer or lawn mower stalls, namely:

  • immediately after the start;
  • when it has been idling for some time. after one or several minutes;
  • when you press the gas button (or knob). or shortly after starting work at high, near-maximum speeds;
  • under heavy load (for example, to prune bushes, mow dense and tall weeds);
  • when warming up in the cold, it heats up unnecessarily (the lawn mower has stalled due to overheating);
  • after opening the air damper.

Depending on which of the circumstances was clarified during the pre-diagnosis, the elimination method is used to look for a more specific cause of the malfunction of the brushcutter or grass trimmer.

With an increase in revolutions

If the mower (or grass trimmer) stalls when you add engine speed, check the device for the following:

  • clogging or sticking of the valve built into the gas tank cap;
  • violation of valve adjustment;
  • malfunction of pistons and cylinders. from vibration during the operation of the scythe for grass or grass trimmer, accidental impacts directly in the mowing session;
  • violation of the supply of the air-fuel mixture;
  • extra pumping air into the motor;
  • cracking of the fuel inlet hose, loosening of its connections.

When the air-fuel mixture is supplied in the necessary portions to the engine out of time, it burns the amount that has been delivered since the last stalling, and itself stalls again.

Ways to eliminate breakage

The following works are possible on the carburetor:

  • cleaning and adjusting the fuel supply valve;
  • similar work with a valve that releases exhaust gases and vapors (after fuel combustion);
  • replacing the weaker spring on the inlet valve;
  • restoration of the tension of the carburetor cable;
  • replacing the fuel suction hose, checking and strengthening the loosened connection;
  • change of the rotary disc damper;.
  • replacement of a faulty wire or ignition coil.

The list of work carried out may also include cleaning the injectors (in a 4-stroke engine), replacing valve washers, gaskets in tank plugs, and so on.

Trimmer won’t stay running, fixed.

In the process of warming up the engine

If the engine heats up too quickly, overheats. the lawn mower or grass trimmer works unevenly, as if in jerks. After which it will stall. The reason may be as follows:

  • boiling gasoline;
  • the ignition wire is damaged (poor insulation);
  • the coil in the ignition system burned out noticeably, inter-turn short circuits appeared.

The same heating is observed when using a rotary (rather than disc) damper.

When the air damper is opened

The lawn mower or grass trimmer stalls when the shutter is raised for the following reasons:

  • pumping excess air due to a cracked fuel suction hose;
  • oil seals are worn out;
  • improper functioning of the fuel and air metering unit when they are mixed.

Stop the brushcutter in this case immediately.

the lawn mower stalls when you press the gas: causes and remedies

a lawn mower and a gasoline grass trimmer are machines that do not just mow the grass, but cut it up to several times more than their counterparts with an electric motor. Once the lawn mower or petrol trimmer stalls for a while, and the mowing process immediately slows down.

Immediately after the start

The stalling of the brushcutter or grass trimmer immediately after the start is due to the following reasons:

grass, trimmer, stalls, press, causes
  • imbalance of previously adjusted valves;
  • initially incorrect setting of the valve mechanism;
  • clogging of the fuel supply valve by deposits;
  • the hose is worn out or loosely connected.

Due to a broken fuel injection algorithm, the lawn mower or grass trimmer vibrates strongly during operation.

Causes of malfunction and their elimination

To most accurately determine the cause of a malfunction of any brand of grass trimmer (for example, Echo) and find out the possibility of its elimination, it is necessary to establish at what action the device stalls. The engine can be turned off both at idle and at high speeds, heating up under load or immediately after starting, etc.

If stalled at high speeds

If the carburetor stalls at high speeds, this means that at idle and low speeds, the incoming fuel is enough for it, but not enough to work at high speeds. Then it is necessary to check the serviceability of the following units of the grass trimmer.

  • Fuel hose. may have been damaged by cracking. In this case, you need to replace the part. Or maybe you just need to tighten the clamps.
  • The filter mesh between the carburetor and the gasoline supply hose. it could be clogged. In this situation, it is necessary to clean the part.
  • The valve located on the gas tank cap. it could get stuck or clogged with debris. Cleaning is also needed.
  • Carburetor. it may be misaligned as a result of constant vibration. This is usually the case for cheap Chinese parts. To fix the problem, you need to configure according to the instructions. In some cases, it is enough just to loosen the tightening of the carburetor body. If the adjustment fails, you need to install a new element.
  • Additionally, you should check the air filter. It may need to be rinsed and cleaned or replaced with a new one, as it could become clogged with dirt and grass particles when the equipment is tilted, when the user mowed in hard-to-reach places.

If stalled after launch

If the equipment starts and stalls immediately after starting, this indicates an incorrect setting or misalignment of the device. As a result, fuel does not flow to the engine evenly, resulting in significant vibration and disengagement of the grass trimmer. To fix the breakdown, it is necessary to reconfigure the device according to the user’s manual.

Another likely problem is a clogged gasoline supply valve. It needs to be cleaned.

On a note! If the grass trimmer starts but stalls right away, it could also mean that fuel is having difficulty flowing to the carburetor. Weakening the valve will help to eliminate the problem. this will ensure uniform and free circulation of fuel in the device.

Another possible cause is a damaged fuel intake hose. Air can enter the system through cracks and holes. To solve the problem, you need to increase the engine speed in order to get rid of air bubbles that have penetrated inside the device.

The grass trimmer stalls at idle. the reasons and their solutions

Common situations where a grass trimmer or lawn mower stalls include idling. Let’s go straight to the reasons:

  • heating of the gearbox and a drop in revolutions on the drum as a result of the fact that the gasoline solution is not prepared quite correctly. The required proportion is 1: 4;
  • contamination of the carburetor;
  • the throttle valve is clogged;
  • when the damper is opened (if such an experiment was carried out), the air flow makes the mixture “lean”;
  • adjusting the carburetor;
  • clogged air filter;
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Insufficient amount of fuel, which is needed for the operation of the gasoline-powered tool, will entail a situation when at high speeds, when increasing, the grass trimmer works, and stalls at idle. In a situation with a carburetor, the device will stall on cold start and “hot”. For any brushcutter user. a professional and an amateur, it is important to understand that any malfunction of the tool may depend on fine detachment of the part, detachment of the fastener or clogging, as well as on the global breakdown of an important part of the mechanism.

Despite all sorts of malfunctions, your device still needs such an indispensable component as brushcutter knives, without which the operation of the grass scythe is simply impossible.!

The gasoline grass trimmer is a useful tool for clearing unwanted grass from home areas and large lawns. The design of this technique is rather complicated, therefore, if the device breaks down, there may be several reasons. The most likely factors causing the breakdown are usually described in the user manual. Knowing why the grass trimmer stalls, you can try to fix the defect yourself. The most common malfunctions that provoke a stop of the brushcutter, and the possibility of repairing them with your own hands. in the material below.

If stalled under load

Sometimes the grass trimmer stalls under load because it cannot gain momentum. This means that the cable, which is taut in the carburetor, is loose and slack. If you have experience in repairing this unit, the cable should be tightened.

Another cause of the malfunction is that the fuel intake hose is too tight. Under load, it stretches even more, as a result of which cracks are formed, as a result, the part deteriorates. To eliminate the breakdown, you will need to replace this element.

Why does the grass trimmer stall when I press the gas?

As you can see, there are many reasons why the grass trimmer can stall when you press the gas. That is why it is important to monitor the state of your assistant, check the state of all systems of the mechanism in time.

Before figuring out why any of the tools of a summer resident-gardener or a professional working with a brushcutter (petrol cutter) stalls, it is worth distinguishing between two main situations when this happens. The first is when the instrument does not start after you have just made the purchase, and the second is when the instrument is in use. So, let’s look at both.

  • After launch. The lawn mower stalls if the carburetor is set incorrectly or if it has been adjusted. Fuel is supplied unevenly, respectively, there are distinct vibrations.
  • When heated. The situation when the mechanism starts and works, but gradually “chokes” and stalls on the move. when gasoline boils in the carburetor, or the damper in the carburetor is not disc, but rotary. In such cases, it is better to replace the carburetor itself. There is a variant of air leakage. when the coil or wire in the ignition is broken.
  • At high speeds. This also occurs from the adjustment of the carburetor or clogging of the cap on the gas tank. It is worth trying working with a slightly open valve. Be sure to check the fuel intake hose. it may be cracked or poorly attached to the base.
  • Not gaining momentum. As the main reason why the engine does not pick up speed, the air filter is clogged. It is possible for the cable to fall off in the carburetor, breakdown of the carburetor and the occurrence of problems with the mechanics of the motor drive.

There are times when a part of the mechanism requires mandatory replacement, so we are always happy to offer spare parts for a lawn mower. It is important to understand that sometimes saving on minor elements can lead to breakdown of such global components as the carburetor or engine. Therefore, competent operation and timely replacement of the necessary particles will provide you with a full-fledged work with pleasure.

If it stalled when opening the damper

If the equipment works properly at idle, but stalls when the air damper is opened, this indicates the penetration of air into the system through cracks in the fuel supply hose or damaged oil seals. In order to fix the breakage and adjust the operation of the tool without sucking air from the atmosphere, it is necessary to replace the damaged parts.

Another possible cause of a breakdown is a malfunction of the carburetor dosage system. To fix this problem, it is better to contact the professionals.

Why the petrol grass trimmer stalls

A petrol-powered grass scythe is a useful thing for owners of home gardens, lawns, and when the grass trimmer suddenly stalls, the work to clear the area of ​​grass stops. The device itself is a rather complex mechanism, so there are many different reasons for its breakdowns. The most common malfunctions are contained in the operating instructions. Knowing the reasons why the grass trimmer stalls should be done in order to effectively repair the device yourself.

When heated

the lawnmower often stops when it heats up. At the same time, it starts up, works “jerky” and gradually stops. This process occurs when the gasoline in the carburetor boils or the damper is installed in a rotary rather than disc type. In the latter case, the part is changed.

It happens that the grass trimmer heats up if the ignition wire or coil is damaged. Parts are replaced in order for the device to start working normally.

Immediately after wound up

The unit may stall immediately after starting if the carburetor is misaligned or incorrectly adjusted. this causes an uneven fuel supply. The result is that the device vibrates distinctly. To troubleshoot the carburetor, readjust, following the instructions for the mechanism.

Also, the engine stops when the fuel supply valve becomes clogged. In such cases, it is sufficient to simply clean it. If the mower started up at first, but then immediately stalled, then it is possible that the fuel enters the carburetor unit with some difficulty. The weakening of the valve helps to resolve the issue, which ensures free circulation of the mixture in the system.

A stop can also be caused by air leaks in the presence of mechanical damage to the hose (holes, cracks) that takes the fuel. In this case, add more revolutions to the drive in order to quickly expel air bubbles from the system.

What could have broken

Problems with the petrol brush, due to the fact that this device does not start, are classified in a certain way by service specialists. They highlight faults with the following components of the mechanism:

  • an engine in which the piston and bearings may wear out or fail, crack the crankcase;
  • the fuel supply system, while the filter may be clogged or problems with the carburetor;
  • mechanical damage to wires, tubes, hoses;
  • ignition circuit.

To correctly identify the node where the breakage occurred, you need to pay attention to the circumstances under which the grass trimmer stalls.

When you press the gas

If the mower stops when you press the gas, the reasons may be as follows:.

  • The most common option is carburetor adjustment failure, which occurs when the drive is under significant stress, after prolonged inactivity of the mechanism, or when it is used in difficult conditions.
  • Clogging of the fuel valve, which is eliminated by loosening it, as a result of which gasoline begins to flow normally through the system.
  • Loosening and drooping of the cable in the carburetor. The fuel hose may also be stretched to the point of rupture due to significant stress.
  • Clogged breather (non-return valve), as a result of which fuel does not flow into the tank.

If the problem is with the carburetor assembly, the mower vibrates to recognize it. When the hose bursts or the cable is stretched, these components are replaced.

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At high revs

When the scythe for grass stalls at high speeds, this is due to the following problems:

  • clogging or sticking of the valve located on the gas tank cap;
  • the carburetor is out of alignment under the influence of vibrations arising from the operation of the mechanism;
  • problems with the circulation of the fuel mixture;
  • suction of atmospheric air;
  • the fuel intake hose is cracked or loose.

Adjust the carburetor referring to the trimmer operating instructions. For adjustment, it is often sufficient to loosen the tightening of its housing. If there are problematic points with the circulation of the fuel mixture, then it can gradually enter the carburetor. After its development, the engine stalls at high speeds.

Idle

At idle, common reasons for stopping the grass trimmer are as follows:

  • contamination, misalignment or incorrectly adjusted carburetor adjustment;
  • clogged air filter;
  • reducing the speed of the gearbox when it heats up, which is a consequence of using an unsuitable fuel mixture;
  • clogged throttle;
  • air ingress into the system;
  • not enough fuel to operate the lawn mower.

How To Easily Fix A Weedeater That Bogs Down

If the problem area is the carburetor, then the equipment will stop at both “cold” and “hot” start.

grass trimmer lawn mower stalls when the throttle is added / Benzonase trimmer Stalls

grass trimmer lawn mower Stalls when gas is added. the grass trimmer does not pull. the grass trimmer loses speed under load.

The unit may stall immediately after starting if the carburetor is misaligned or incorrectly adjusted. this causes an uneven fuel supply. The result is that the device vibrates distinctly. To troubleshoot the carburetor, readjust, following the instructions for the mechanism.

Also, the engine stops when the fuel supply valve becomes clogged. In such cases, it is sufficient to simply clean it. If the mower started up at first, but then immediately stalled, then it is possible that the fuel enters the carburetor unit with some difficulty. The weakening of the valve helps to resolve the issue, which ensures free circulation of the mixture in the system.

A stop can also be caused by air leaks in the presence of mechanical damage to the hose (holes, cracks) that takes the fuel. In this case, add more revolutions to the drive in order to quickly expel air bubbles from the system.

When you press the gas

If the lawn mower stops when you press the gas, then the prerequisites may be as follows.

  • A more common option is a carburetor adjustment failure, which appears at significant loads on the drive, after prolonged inactivity of the mechanism, or when it is used in languid criteria.

If the problem is with the carburetor assembly, the mower vibrates to recognize it. When the hose bursts or the cable is stretched, these components are replaced.

lawn mower stalls

Adjustment of the carburetor, does not start well, stalls when you press the gas. MY SKYPE: ork.vitek TEL. 380979677418

What to do if the mower or saw stalls at high RPM (under load)

Garden equipment repair group Video about the reasons for the sudden stop of the two-stroke.

the mower will not start hot. pull the gas trigger and pull the cord abruptly several times until the engine starts, then pull the trigger. Will not start. specialized repair required.

Checking the ignition system, if the mower does not start, is carried out sequentially:

  • clean the removed candle from carbon deposits and dirt, dry it, set a gap of 1 mm;
  • connect to a high-voltage wire and check for a spark by pulling the starter several times;
  • in the absence of a spark, check the high-voltage wire for integrity;
  • replace the candle;
  • dry the candle channel;
  • at the same time the operation of the ignition coil is checked, it is faulty if the working plug does not spark.

It is in the event of a malfunction of the ignition coil that the lawn mower does not start up hot, stalls, works intermittently.

Cleaning or replacing the air and fuel filter will ensure the proper flow of ingredients to the carburetor. The air filter can be washed in soapy water or replaced. If nylon fabric is used, it is washed, the porous felt filler is replaced. Why the lawn mower stalls when you press the gas: reasons and solutions. The lawn mower (grass trimmer) stalls: Change the fuel filter carefully without leaving the suction port open. Whether it is necessary to replace the air filter can be determined if the engine starts with the air cleaner removed. Is it necessary to change the grid on the fuel supply if the lawn mower does not start, a dry candle will tell.

Breather, gas tank air inlet. If it becomes clogged, a vacuum is created in the tank and the mixture does not enter the carburetor. The hole can be blown out with air or cleaned with a needle. Clean the exhaust duct, remove the anti-spark screen of the muffler.

Eliminating Reasons Your Lawn Mower Won’t Start

The fuel mixture must be prepared with the exact proportions of gasoline and oil. In this case, you cannot use another brand of fuel. To exclude the ingress of dirt, gasoline must settle in glass or metal containers for 2 days. Do not use plastic utensils for storing fuel. Measure the oil accurately with a medical syringe without a needle. Use only freshly prepared mixture, do not leave unused fuel in the tank. If the engine is naughty, the lawn mower stalls, when you press the gas, the fuel may be to blame.

Lawn Mower Starts And Immediately Stalls Reason

The tool, despite its small size, is a complex technical device. If you study the annotation for operation, it turns out that the prerequisites for why the lawn mower does not start are known and removable. It is necessary to eliminate one by one the reasons that make it difficult to start the tool. Usually start with more accessible nodes with an easy health check.

What remains to be done for our client are the prerequisites, why the lawn mower does not start, of course, systematize according to the specifics of the work of individual units. In a car service, malfunctions are systematized:

The user first needs to check if there is fuel in the tank. Start up in accordance with the annotation, putting the saw on its side. Set the air damper to the “closed” position, pump up fuel, turn on the ignition and make 3-4 sharp jerks with the starter. If the engine is running, open the air damper. The lawn mower does not start. we repeat the operations with a slightly open air damper.

the lawn mower is not allowed to work for a long time. The gearbox and engine will overheat. Mows have an option of less than 15 = 20 minutes, taking a five-minute break. On a hot afternoon, working hours are cut in half. When mowing weeds, sedges, the working time must be reduced.

the lawn mower stalls at high engine speeds

During operation, a situation arises when, when you press the button for supplying the fuel mixture, the speed of the unit does not begin to increase, but to decrease. A malfunction of this nature can be caused by:

  • etching atmospheric air into the combustion chamber;
  • problems with the circulation of the fuel mixture;
  • clogging of the breather in the fuel tank cap (cleaning the hole with a fine sewing needle);
  • incorrect carburetor adjustment.

When air is leaking during the operation of the internal combustion engine, it is necessary to check the tightness of the connection of the pipes and the integrity of the gaskets in the CPG. The problem with the circulation of the fuel mixture can be solved by removing blockages in the fuel pipes leading to the carburetor. If a vacuum occurs in the tank and the fuel mixture does not flow to the carburetor, it is enough to clean the breather with a thin needle and blow it with air.

Does the engine stall immediately after starting? why is this happening

Another common prerequisite for which the grass trimmer will not start is a blockage in the filter area. To confirm the hypothesis, it is enough to dismantle the designated block and test the start-up of the unit without it. If the grass trimmer engine starts, most likely you will have to create an air filter change or at least perform a painstaking purge of an old one. If there is abundant contamination of the filter element, use the latest mesh. When resorting to similar actions, it is not recommended to leave the absorbing tube completely without a filter. After all, haste in our version leads to the need to repair the entire piston group of the engine unit.

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Often the engine of branded trim models stalls when the breather is clogged. The main task of the designated component is to equalize the pressure in the fuel tank. For which the design of the contamination of the unit is intended, a vacuum appears here, which greatly complicates the supply of fuel. The fault can be removed by cleaning the breather with an ordinary sewing needle.

Gasoline grass trimmer stalls at idle speed

Often, when the speed decreases, the brushcutter engine stalls and does not maintain idle speed when restarted. The main reasons for the occurrence of such a breakdown include contamination or misalignment of the carburetor, as well as clogging of the air filter.

Petrol grass trimmer stalls when idling

If the optimal settings of the carburetor are violated, it is necessary to clean and re-adjust it. A clogged grass trimmer air filter can be treated by placing it in a solution of common household detergent for several hours. If self-cleaning did not help to cope with the blockage, then it is better to purchase a new filter element in accordance with the instruction manual.

After carrying out activities, the user will not face a situation for a long time when the grass trimmer stalls at idle and functions only when gas is applied.

Grass trimmer stalls: causes and troubleshooting

The lawnmower is a mobile, high-performance tool for beautifying home gardens and surrounding areas. With prolonged use due to wear of parts or manufacturing defects, malfunctions occur, which lead to the fact that the grass trimmer stalls or does not start. Since this tool is a rather complex mechanism, there can be several reasons why the lawn mower stalls.

There are two main ways to troubleshoot problems: transferring the grass scythe to a specialized center or solving the problem yourself. The first option is suitable for those who are ready to pay a “tidy” sum to restore the unit’s working capacity, and the second for those who have basic locksmith skills and can independently figure out the causes of breakdowns and ways to eliminate them.

Currently, it is customary to classify breakdowns for which the lawn mower stalls into the following categories:

  • mechanical damage to the internal combustion engine crankcase, malfunctions of the cylinder-piston group (CPG);
  • breakdowns associated with the supply of the fuel mixture (air filter, carburetor);
  • malfunctions due to damaged tubes, hoses, cables or ignition circuit.

Grass Trimmer Starts Up And Dies Immediately Causes

In recent years, the gasoline grass trimmer has gained textbook status as one of the main tools in the gardener’s arsenal. And such actions are logical, because a motorized scythe for grass allows you to quickly put your personal plot in order. But it happens that the grass trimmer does not start on hot and cool. In such situations, it is necessary to establish the cause of the malfunction without the help of others. Next, let’s figure out what to do if the grass trimmer won’t start. The premises that mostly lead to such troubles will be examined further.

Where to start diagnosing defects if the grass trimmer won’t start? In situations where the tool stalls immediately after starting, it is worth looking at the following units of the unit:

Specifically, the breakdown of the above locations for the most part leads to the fact that the grass trimmer does not start well. It is necessary to consider how to remove such problems.

grass, trimmer, stalls, press, causes

Let’s say your grass trimmer won’t start. Then the beginning of everything is to check whether there is enough fuel in the tank, to additionally evaluate the quality of the fuel consistency. The motorized unit should only be refueled with high quality gasoline. It is recommended to use fuel, the grade of which is not lower than AI-95. Filling the grass trimmer with fuel of unknown origin not purchased from a gas station can lead to frequent malfunctions of the tool. This causes a breakdown of the cylinder-piston accounting system. Repairs under these circumstances often exceed the price of the device itself.

Why won’t the petrol grass trimmer start? Incorrect preparation of the fuel consistency, which consists of oil and gasoline, can also lead to this. The proportions in which the designated components are combined are indicated by the manufacturers in the grass trimmer instruction manual. It is highly discouraged to prepare a fuel mixture in large volumes, in other words, for the future. Indeed, with long-term savings, there is a loss of the defining parameters of the substance. If the grass trimmer does not start, it is worth draining the old fuel and using a freshly prepared fuel consistency.

The grass trimmer stalls when you press the gas

Grass trimmer stalls: causes and troubleshooting

The lawnmower is a mobile, high-performance tool for beautifying home gardens and surrounding areas. With prolonged use due to wear of parts or manufacturing defects, malfunctions occur, which lead to the fact that the grass trimmer stalls or does not start. Since this tool is a rather complex mechanism, there can be several reasons why the lawn mower stalls.

There are two main ways to troubleshoot problems: transferring the grass scythe to a specialized center or solving the problem yourself. The first option is suitable for those who are ready to pay a “tidy” sum to restore the unit’s working capacity, and the second for those who have basic locksmith skills and can independently figure out the causes of breakdowns and ways to eliminate them.

Currently, it is customary to classify breakdowns for which the lawn mower stalls into the following categories:

  • mechanical damage to the internal combustion engine crankcase, malfunctions of the cylinder-piston group (CPG);
  • breakdowns associated with the supply of the fuel mixture (air filter, carburetor);
  • malfunctions due to damaged tubes, hoses, cables or ignition circuit.

The lawn mower stalls when you press the gas

As practice shows, in most cases, the reason for stopping the engine is a misalignment of the carburetor associated with long-term storage or operation of the tool in an aggressive environment (temperature drops, high humidity, dust), high loads or wear of individual parts. The characteristic signs of the need to adjust the carburetor include increased vibration. If you have experience in repairing the fuel system of gasoline engines, you can fix the problem without any special problems, otherwise you can read the detailed instructions for setting up the carburetor.

Hole in the fuel cap (breather) of the grass trimmer

The second possible reason the grass trimmer stalls when you press the throttle is a clogged hole in the fuel filler cap (breather). When small particles of dust, grass residues and sand enter it, a vacuum is created in the gas tank, as a result of which fuel ceases to flow into the carburetor. You can clean the breather of the gas trimmer with a regular sewing needle and then blow it with compressed air. Experts recommend at the end of work, once in several mows, to clean the breather. If cleaning is not possible, the cover must be replaced.

With a similar problem, you should pay attention to the fuel valve, which, when clogged, ceases to pass the fuel mixture normally. The solution to this problem is to mitigate it with a suitable tool. In addition, a problem with the circulation of the fuel mixture may lie in the valve clogging. To do this, it is enough to blow it with a stream of compressed air.