Trimmer Stihl Stalls At Idle

When the air damper is opened

The mower or 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;
  • Incorrect operation of the fuel and air metering unit when mixing them.
Trimmer Stihl Stalls At Idle

Stop the lawn mowers in this case immediately.

Immediately after the start

The stalling of a lawn mower or trimmer immediately after the start is due to the following reasons:

  • Imbalance of previously adjusted valves;
  • Initially incorrect valve train setting;
  • Clogging of the fuel supply valve by deposits;
  • Worn or loose hose.

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

Ways to eliminate breakage

By carburetor The following works are possible:

  • 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;
  • Restoring the tension of the carburetor cable;
  • Replacing the fuel suction hose, checking and tightening the loosening of the connection;
  • Change of rotary disc damper;.
  • Changing a faulty wire or ignition coil.

Main reasons

Possible reasons for the lawn mower or trimmer to stall when trying to restart and resume interrupted work:

  • Engine problems;
  • Failure in the petrol and oil supply system;
  • Damage to pipelines (capillaries, hoses, nozzles)
  • Malfunctions in the ignition system.

A general description of scythe or trimmer problems is not enough here. A clear and immediate repair, high-quality service is impossible without specifying the identified cause.

With increasing speed

If the lawn mower (or trimmer) stalls when adding engine rpm. Check your device for the following:

  • Blockage or sticking of the valve built into the gas tank cap;
  • Violation of valve adjustment;
  • Malfunction of pistons and cylinders. From vibration during the work of the scythe or trimmer, accidental blows directly during the mowing session;
  • Violation of the supply of the air-fuel mixture;
  • Excessive pumping of air into the motor;
  • Cracking of the fuel inlet hose, loosening of its connections.

When the air-fuel mixture is supplied in the required portions to the engine out of time. The one burns the amount that has been received since the last stall, and itself stalls again.

Diagnostic features

Well posed question. Already half the answer. The fact will significantly speed up the search for a solution. Under what circumstances does a petrol trimmer or lawn mower stall, namely:

  • Immediately after the start;
  • When it has been idling for a while. After one or several minutes;
  • By pressing the button (or handle) gas. Or shortly after starting work at high, near-maximum speeds;
  • Under heavy load (for example, to cut bushes, mows dense and tall Weeds)
  • When warmed up in the cold. Heats up excessively (the lawn mower has stalled due to overheating)
  • After opening the air damper.

Trimmer stalls: causes and troubleshooting

The lawn mower is a mobile, high-performance tool for the beautification of 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 trimmer stalls or does not start. Since this tool is a rather complex mechanism, there may be several reasons why the lawn mower stalls.

Why does the trimmer stall

There are two main ways to troubleshoot problems: transferring the braid to a specialized center or solving the issue with your own hands. 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 one 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 at high engine speeds

During operation, a situation arises when, when you press the fuel mixture supply button, the unit turns NOT increase, but decrease. A malfunction of this nature can be caused by:

Fuel hoses for lawn mowers with filter

  • By etching atmospheric air into the combustion chamber;
  • Problems with the circulation of the fuel mixture;
  • Clogged 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 eliminating 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.

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The lawn mower stalls when you press the gas

Gas key lawn mowers

Hole in the fuel cap (breather) of the trimmer

Lawn mowers fuel valve

With a similar problem, pay attention to the fuel valve, which, when clogged, stops passing 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.

Petrol trimmer stalls at idle speed

Often, when the engine speed decreases, the lawn mower engine stalls and when it is restarted the Plasma idle speed. 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.

The petrol trimmer stalls when idling

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

After carrying out user activities for a long time, he will NOT face a situation where the trimmer stalls at idle and functions only when gas is supplied.

Why does the chainsaw stall when you press the gas

Let’s say the chainsaw works normally at idle, but when the gas is pressed sharply, it stalls. What could be the reason? It is immediately clear that the matter is not about the ignition (no spark), since if the ignition is faulty and there is no spark, the tool would simply not start. Means the fuel system remains.

There are a lot of malfunctions in the fuel system, and to determine the exact reason why the Stihl 180 chainsaw stalls when you press the gas, you need to carry out a complete diagnosis. We recommend reading about common malfunctions of the Stihl 180 chainsaw and their elimination.

Why stalls at full speed

Very often you can hear the question why the chainsaw stalls at full speed. There may be several reasons. First, you need to consider how the saw stalled. Suppose the tool worked normally and suddenly, for no apparent reason, it suddenly stalled and the starter did not turn. In such a situation, you can be 100% sure that the chainsaw is jammed and you need to start its overhaul.

The second situation is when the Stihl 180 chainsaw worked normally, then gradually lost power for a short time and stalled, while the cylinder overheated. In this case, most likely the reason is air leaks under the rubber pipe connecting the carburetor to the cylinder or its rupture. The mixture was depleted, resulting in overheating. You can eliminate the cause by changing the pipe.

Filter check

The first thing to check is the fuel filter.

In some cases, a filter clogged with dirt is unable to pass enough fuel mixture through it. Accordingly, a fuel shortage arises in the system, which leads to the fact that when you press the gas of the chainsaw, the fuel burns out, and the new one does not have time to come in, as a result of which the Stihl chainsaw stalls. Also, if the fuel filter is bruised, there may be a noticeable drop in the power of the chainsaw at maximum speed, but this is with little pollution.

Carburetor

One of the reasons why the chainsaw develops speed when the gas is pressed, but on the contrary stalls, is a malfunction of the carburetor. Let’s say the Stihl 180 saw worked properly, and then it was put on for a long time and did NOT use it. After it was started, and at idle it works well, and when you press the gas it can stall. Why stalls? The reason is a sticky carburetor injector valve. Of course, this is not 100%, but the probability of such a malfunction is high. We recommend reading an article about the device and repair of the Stihl 180 carburetor.

In order to check the nozzle, it is necessary to remove the carburetor and disassemble it. To remove, it is necessary to Unscrew the two nuts securing the air filter and the carburetor, then remove the air filter and the engine control lever, while disconnecting the choke control rod from the carburetor. Next, you need to pull the carburetor slightly towards you, and disconnect the fuel supply hose.

Having removed the carburetor, it must be blown out and cleaned of dirt, only after that the carburetor can be unscrewed.

It is necessary to unscrew the cover of the main chamber of the carburetor, this and on which the compensator is installed on top. Further, using a bolt of 8 mm and a length of at least 50 mm. Knock out the valve.

After the nozzle is removed, you can blow it out with a compressor. The valve should allow air to pass only in one direction, if the valve can be freely blown in both directions, then it is defective and must be replaced with a new one. Collect the chainsaw after the valve has been repaired, it is necessary to follow the reverse order of disassembly.

To see clearly how the carburetor is being repaired, or rather, how to properly knock out the injector valve from the carburetor body, you can look.

Another common reason a saw may stall when revving up is air leaks into the carburetor. It is possible to check this only with a special tool, but it is worth noting that if the maintenance work with the carburetor has not been carried out for a long time, then a new set of gaskets can be installed in the carburetor. In some cases, this helps to solve the problem with its depressurization.

When disassembling the carburetor to replace the gaskets, you need to carefully inspect its needle valve, press the rocker arm and check its lifting. Sometimes, especially after the Stihl chainsaw has stood for a long time with fuel in the carburetor, the needle may burn to the carburetor body and NOT perform its functions. Simply put, the needle valve will not allow the fuel mixture to pass through. In this case, the saw will not work.

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Air filter

On the pages of the world wide web, you can find information that the Stihl 180 chainsaw can stall due to strong contamination of the air filter. I would like to refute this Not entirely correct information, and report that the Stihl MC 180 carburetor is equipped with an expansion joint, which is designed and installed in order to take in the air necessary for the normal operation of the Stihl 180 chainsaw, bypassing the contaminated air filter. Of course, the power with a clogged air filter will drop a little, but it will definitely not stall. The power may also drop due to wear of the piston, here it will already be necessary to repair the piston Stihl MS 180 chainsaw.

For what reasons Stihl 180 stalls at idle or full throttle

Any tool capable of Riot of salesmen and the Stihl MS 180 chainsaw is NOT an exception. Today we will try to figure out such questions as: why the chainsaw stalls when the speed increases, also at idle and at full speed. Consider the options for diagnosing and eliminating malfunctions associated with this behavior of the Stihl 180 chainsaw.

The lawn mower stalls

When purchasing a lawn mower, you need to be prepared for the fact that, like in all other similar tools, breakdowns may also occur in it, which will require repair.

However, you should immediately run to the service center and pay a lot of money to the masters, convincing you of the presence of a serious malfunction in the device.

The lawn mower stalls at high speed on gas

Perhaps the most common complaint related to petrol trimmers is “lawn mower stalls.”.

Of course, a rather serious malfunction may also be a prerequisite for this. However, most often the situation is much simpler than it seems at first glance.

To cope with such a problem, first of all, try to figure out its causes on your own, because after finding out the cause, it is much easier to deal with the problem, and sometimes it even self-destructs.

In fact, the reasons are when the lawn mower stalls at high speeds, there are quite a lot of THESE reasons.

Another one is the presence of faults in the power system.

In this case, the lawn mower will stall at idle speed. Misadjustment or improper adjustment of the carburetor can lead to problems with the power system.

The misalignment can be caused by vibrations that occur during the operation of the lawn mower.

Incorrect adjustment of the lawn mowers can be corrected by simply adjusting it in accordance with the requirements specified in the operating instructions.

In addition, sometimes gasoline trimmers can stall due to the fact that the valve located in the gas tank cap is simply clogged or stuck.

To find out, try using a scythe, loosened the gas cap.

If the device operates properly in this mode, clean the valve.

over, the lawn mower may stall due to poor fuel flow to the carburetor.

Why then does the device start, you ask?

The reason for this is that at first the fuel gradually runs into the carburetor and it is enough to work at increased power.

However, then it is produced and at high speeds the engine starts to stall.

As for the carburetor, the problem here may also be that its body is too tight.

Air leaks can also be the reason why the lawn mower stalls at high RPM on gas.

We are talking about the possible presence of a place through which air can pass during the heating of the engine.

Be sure to check the fuel inlet hose, among other things. The problem may be that it is loose or cracked altogether.

These are the main reasons why a lawn mower may stall.

Why does the petrol trimmer stall

A scythe with a gasoline drive. This is a useful thing for owners of home gardens, lawns, and when the 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 breakdown. The most common problems are contained in the operating instructions. Knowing the reasons why the trimmer stalls should be done in order to effectively repair the device yourself.

Immediately after wound up

The unit may stall immediately after starting if the carburetor is misaligned or incorrectly adjusted. This causes uneven fuel delivery. The result of this is that the device vibrates distinctly. For troubleshooting, the carburetor is reconfigured, 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 working at first, but then immediately stalled, then it is possible that the fuel enters the carburetor unit with some difficulty. Weakening the valve helps to resolve the issue, which ensures free circulation of the mixture in the system.

The stoppage 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, you should add revolutions to the bit in order to quickly expel air bubbles from the system.

When heated

The lawn mower often stops when it heats up. At the same time, it starts up, works “with a jerk” 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.

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It happens that the trimmer heats up if the ignition circuit wire or coil is damaged. In order for the device to start working normally, replace parts.

What could have broken

Problems with the lawn mower, 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:

  • Engine, in which the piston and bearings may wear out or fail, crack the crankcase;
  • The fuel supply system, with the possible clogging of the filter or problems with the carburetor;
  • Mechanical damage to wires, tubes, hoses;
  • Ignition circuit.

Idle

At idle, common reasons for trim stopping are as follows:

  • Dirty, misaligned or incorrectly adjusted carburetor adjustment;
  • Clogged air filter;

Replacing the air filter for lawn mowers

Trimmer 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 mowers.

At high revs

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

  • Clogged or sticking 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;
  • Leakage 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 enough to loosen the tightening of its body. 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.

At high revs

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

  • Clogged or sticking 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;
  • Leakage 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 enough to loosen the tightening of its body. 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.

Air filter

On the global network page, you can find information that the Stihl 180 chainsaw may stall due to severe contamination of the air filter. I would like to refute this NOT completely correct information, and say that the Stihl MC 180 carburetor is equipped with an expansion joint, which is designed and installed in order to take the air necessary for the normal operation of the Stihl 180 chainsaw, bypassing the dirty air filter. Of course, the power with a clogged air filter will drop a little, but it will definitely not stall. The power may also drop due to wear of the piston, here it will already be necessary to repair the piston Stihl MS 180 chainsaw.

The lawn mower stalls at high revs on gas

Perhaps the more common complaint associated with petrol trimmers is “lawn mower stalls.”.

Naturally, a rather severe malfunction may be a prerequisite for this. How to adjust the carburetor at idle does NOT work. On the forward brushcutter even at idle speed (The trimmer shaft always turns even on. The lawn mower stalls at idle speed. The trimmer and lawn mower system does not work. But in most cases the situation is even simpler than it seems at first glance.

To cope with such a discrepancy, at first, try to figure out its causes without the help of others, because, having found out the reason, it is even easier to fight with the problem, and from time to time it even self-destructs.

In fact, the circumstances are when the lawn mower stalls at high speeds, there are a lot of THESE events.

Another is the presence of defects in the power supply system.

In this case, the lawn mower will stall at idle speed. For what reasons Stihl 180 stalls at idle or full throttle, any tool is capable of Riot of salesmen and the stihl ms 180 chainsaw is NOT an exception. The lawn mower does not idle. Misalignment or incorrect carburetor adjustment can lead to a dilemma with the power system.

Trimmer stalls carburetor adjustment.

For even more information on repair and tool selection on our website www.Looktoul.Ru visit we are glad to everyone.

Why does the trimmer stall when you press the gas, at high and idle speeds, when heating or opening the air damper

A scythe with a gasoline drive. This is a useful thing for owners of home gardens, lawns, and when the 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 breakdown. The most common problems are contained in the operating instructions. Knowing the reasons why the trimmer stalls should be done in order to effectively repair the device yourself.

Does the situation depend on the brand of the car

Some time ago it was accepted that only the engine of someone from the VAZ family stalls at idle speed. Most car enthusiasts complained about the design flaws of these cars. However, later it turned out that a certain number of foreign cars, even very popular ones, also have a similar flaw. Thus, the origin of your car does not matter at all, because the owners of even the most prestigious brands have a chance to face this kind of trouble.