To the owner summer cottage You can’t do without a lawn mower or trimmer. But during its operation, situations may arise when this unit for some reason stops starting. And there can be many reasons for this. Let's find out why a gasoline trimmer won't start.
To determine why a gasoline trimmer has difficulty starting or constantly stalls, you need to consistently check the operation of all the main components of the unit. It is especially important to do this after long-term storage petrol mowers. So, the main reasons for this behavior of the trimmer are as follows:
However, it is better to change such parts of the lawn mower at a service center.
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IN Lately The gasoline trimmer has acquired the status of one of the main tools in the arsenal of summer residents. And this is not surprising, because a motorized scythe allows you to quickly bring personal plot in order. However, sometimes it happens that the trimmer does not start when hot or even when cold. In such situations, you have to independently determine the cause of the malfunction. Let's find out what to do if the trimmer won't start. The reasons that most often lead to such troubles will be discussed below.
Where to start diagnosing faults if the trimmer does not start? In situations where the tool stalls immediately after starting, it is worth inspecting the following components of the unit:
It is the breakdown of the above locations that most often leads to the fact that the trimmer does not start well. Let's look at how to eliminate such troubles.
Let's say your trimmer won't start. In this case, the first thing you need to do is check whether there is enough fuel in the tank, and also evaluate the quality of the fuel mixture. It is necessary to refuel a motorized unit exclusively with high-quality gasoline. It is recommended to use fuel of a grade not lower than AI-95. Refilling the trimmer with fuel of unknown origin, purchased not at a gas station, is fraught with frequent malfunctions of the tool. This may cause damage to the cylinder-piston system. Repairs in this case often exceed the cost of the device itself.
Why won't my petrol trimmer start? This may also not be caused by proper preparation fuel mixture, which consists of oil and gasoline. The proportions in which these components are combined are indicated by the manufacturers in the trimmer's instruction manual. It is highly not recommended to prepare the fuel mixture in large volumes, that is, for the future. After all, with long-term conservation, a loss of the defining properties of the substance occurs. Therefore, if the trimmer does not start, you should drain the old fuel and use a freshly prepared fuel mixture.
What to do if the fuel mixture used is in perfect order, but the gasoline trimmer still does not start? The reasons for the failure of the mechanism may lie in excessive moisture in the spark plug channel. To diagnose and fix the problem, you must do the following:
It is recommended to dry the spark plug channel for at least half an hour. However, in no case should you resort to calcining its elements. After all, heating the spark plug can lead to its final damage. What to do if the functional unit was serviced in accordance with the above recommendations, but the trimmer does not start, is there a spark? In this case, it is worth treating the threaded connection with gasoline. The latter does not need to be heavily soaked in fuel. It should be only slightly moistened. Such actions should be taken to ensure ignition. After all, no matter how strong a spark the candle gives, in a completely dry chamber there will simply be nothing to ignite.
Even if in this case the trimmer does not start, it is worth assessing the quality of the contact between the high-voltage wire and the spark plug. If there is no spark (even if there is a reliable connection between these elements), most likely the problem is caused by a breakdown of the ignition unit. In this situation, you will have to turn to the services of specialists who will reinstall the unit.
Another common reason why the trimmer will not start is if there is a clog in the filter area. To confirm your guess, it is enough to dismantle the indicated block and try to start the unit without it. If the trimmer engine starts, most likely you will have to replace the air filter or at least thoroughly blow out the old one.
If there is heavy contamination on the surface of the filter element, it is necessary to use a new mesh. When resorting to such actions, you should not leave the suction pipe completely without a filter. After all, the rush in in this case may lead to the need to repair the entire piston group of the unit engine.
Often, the engine of branded trimmer models stalls as a result of a clogged breather. The main task of this component is to equalize the pressure in the fuel tank. If the unit becomes dirty, a vacuum is formed here, which significantly complicates the supply of fuel. The problem can be resolved by cleaning the breather using a regular sewing needle.
The stable operation of the trimmer may be impaired as a result of a build-up of dirt in the exhaust channel or the formation of a blockage on the muffler mesh. This problem most often arises during the operation of older generation trimmer models. The issue is resolved by dismantling the anti-spark mesh and cleaning it.
To ensure that the unit is always in functional condition, it is worth observing several simple rules:
In order for the unit to remain in working order, it is necessary to properly prepare it for storage in winter period.
First of all, you should completely disassemble the tool, and then rinse and clean the components. It is also important to inspect the functional units for damage, if necessary, eliminating deformations of parts, all kinds of distortions, and tears in materials.
When storing the trimmer, it is worth filling the gearbox with a sufficient amount of oil. Then you need to clean the air filter, partially disassemble, blow out and wash the engine of the unit. After drying all the mechanisms, you should lubricate the moving elements. To treat the piston system with oils, you must first remove the spark plug. Then you need to move the piston to the extreme position, then pour a small amount of oil into the spark plug hole and scroll the crankshaft. If you plan to store the gasoline trimmer outside of the house during the off-season, it is recommended to tightly wrap the engine of the unit with an oily rag. This will avoid the development of corrosion on the surface of important components of the mechanism.
As you can see, there are a number of reasons why a gasoline trimmer may not start. However, if you take the task seriously, the malfunctions indicated in the material can be easily eliminated with your own hands. You should only seek help from specialists in case of critical breakdowns. At the end of the day, you should always weigh the cost self-repair with prices for servicing the unit in the workshop.
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Many gardening Tools are useful and effective, but there are times when the technology refuses to work. Among them was a trimmer, which can mow both a miniature lawn and huge lawns.
There are different reasons, why the gasoline trimmer does not start:
The reasons why a new petrol trimmer does not start can be very trivial, for example, inability to use the device. If the user stores it correctly, uses high-quality fuel and does not leave gasoline in the trimmer, then the unit will serve faithfully for a long time.
To bring your land plot in order, summer residents use many various instruments, chief among which is the lawn mower. Owners of private houses are also showing interest in this weapon. The period of active use of brush cutters is in the summer. Before starting work, it is necessary to lubricate the rubbing parts of the tool, change the cutting attachment and fill the tank with fuel. Sometimes it happens that the engine does not start or stalls instantly without gaining enough speed - this indicates a malfunction that needs to be eliminated. To repair a lawn mower that won’t start with your own hands, a person must have a good understanding of its structure and operating principle.
To do this, you need to read the operating instructions included with the equipment upon purchase. If the lawn mower does not want to start, you should first check whether there is fuel in the tank and what its quality is. It is recommended to refuel the tool with high-quality gasoline of a grade not lower than AI-92. Do not try to save money on cheap fuel, otherwise there is a high probability of damage to the cylinder-piston group. 
Petrol mower is a favorite tool of summer residents and gardeners
Another important step is the correct preparation of the fuel mixture, for which oil and gasoline are used. It is desirable that the mixture be freshly prepared- this way it will not lose its properties. Malfunction of the lawnmower engine can also occur due to contamination of the fuel filter, so if problems arise with starting the engine, it is necessary to check its condition. The filter may need to be replaced. The air filter also needs to be checked - it needs to be:
– rinse in water with detergent
- rinse
– squeeze
– dry
The next step is to wet the filter with oil and install it in place. Using this equipment, do not forget to monitor the condition of the engine cooling system to prevent overheating. The cleaning process should be carried out with a soft bristle brush. Plastic parts must be cleaned using kerosene or special detergents. Quite often, owners of lawn mowers complain about carburetor malfunctions. 
Stages of repairing a lawn mower carburetor
Being aware of the basic principles of its operation, you can easily repair the carburetor of a lawn mower with your own hands. This will save you a decent amount and save you from having to contact the service. If problems arise with the carburetor, the first step is to inspect it to find out if fuel is leaking. If there is no such problem, remove the carburetor from the engine and check the condition of the gaskets located next to it. If no malfunctions are observed here, you can proceed to checking the carburetor for the degree of tightness. For this you will need special device, which is included in the tool kits for repairing the carburetor of lawn mowers. It is a special pressure gauge designed to test leaks.
The petrol mower is a mobile high-performance tool for beautification personal plots and surrounding areas. During long-term use, due to wear of parts or manufacturing defects, malfunctions occur that lead to the trimmer stalling or not starting. 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 resolve problems: transferring the scythe to a specialized center or solving the issue yourself. The first option is suitable for those who are ready to shell out a tidy sum to restore the unit’s functionality, and the second for those who have basic plumbing skills and can independently figure out the causes of breakdowns and how to eliminate them.
Currently, it is customary to classify breakdowns that cause a lawn mower to stall into the following categories:
During operation, a situation arises when, when you press the button for supplying the fuel mixture, the speed of the unit begins not to increase, but to decrease. A malfunction of this nature may be caused by:
Fuel hoses for brush cutters with filter
If air leaks during operation of the internal combustion engine, it is necessary to check the tightness of the connections 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 fine needle and blow with air.
Often, when the speed is reduced, the brush cutter engine stalls and does not maintain idle speed when restarted. The main reasons for such a breakdown include contamination or misadjustment of the carburetor, as well as clogged air filter.
Gasoline trimmer stalls when idling
If the optimal carburetor settings are violated, it is necessary to clean it and readjust it. A clogged trimmer air filter can be dealt with by soaking it in a solution with regular household detergent for several hours. If self-cleaning does 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 the activities, the user for a long time will not encounter a situation where the trimmer stalls at idle and functions only when gas is supplied.
The trimmer stalls: causes and troubleshooting was last modified: July 22nd, 2018 by Administrator
Usage gasoline scythes today it is widespread and relevant, since having good power and productivity, these tools help a person cope with the surrounding vegetation: grass, weeds, overgrown lawns, and so on. But there are situations when The lawn mower won't start under all circumstances. There can be many reasons for this, as well as external manifestations. For example, a working brush cutter may not start after winter inactivity, under the influence of negative seasonal conditions, or in the event of internal breakdowns. It happens that the engine fills the spark plug with fuel.
Representing a structure of drive and other systems, which includes: a gasoline engine, a gearbox, and other ignition elements, gasoline tools are constantly exposed to mechanical stress. In most cases, they are the reasons when the gas trimmer refuses to work. Having technical experience and the necessary knowledge, the KosiKosa store offers not only the opportunity at a low price, but also to submit it for service to identify the reason for the lack of startup and troubleshooting.
So, a situation happened in which The brush cutter won't start Before the next harvesting operation, the reasons are first found out in order to understand why it refuses to start and how to make the scythe come back to life. In this case it is necessary:
In any case, there is a breakdown due to which the gasoline trimmer refuses to start, and to solve this problem you may need partial renovation petrol equipment or full. By contacting “KosiKosa” you can get information about which of the reasons arose for you. Also, for repair work We have available ignition systems, necessary spare parts, as well as other products that will be useful to the owner of the scythe.
Of course, the reasons why trimmer won't start There are also other types. The technical potential of a gasoline engine may itself cause some of them, such as:
If your 4-stroke lawn mower refuses to work for other reasons, it is better to contact the specialists of “Koshi-Kosa”. Through experience, they will determine the cause, indicate the cost, and perform the required maintenance. Also, in order for the tool to return to its specified functions after service, the store can also offer other elements among components and spare parts.
In order for your existing lawnmower to work properly for a sufficiently long time, the online store “Mowing Kosa” recommends that you treat the tool you use with care. Since there are many reasons why a gasoline trimmer refuses to start, following simple rules will help avoid a number of situations.
When purchasing all the necessary spare parts, as well as ordering service for repairing the starting system of a Stihl petrol saw or other models, KosiKosa specialists will kindly provide information on caring for the product in order to prevent the occurrence of these situations during all future operation.
Why not starts petrol trimmer? Causes and their elimination
In the near future petrol trimmer acquired the status of one of the main tools in the arsenal of summer residents. And this is logical, because a motorized scythe allows you to quickly get your garden plot in order. The scythe will not start in the hardship season. Diagnosis of problems and solutions. Repairs that are done with your own hands and in specialized centers. But from time to time it happens that the trimmer does not start in hot or even cool conditions. In such situations, you have to independently determine the cause of the malfunction. Let's find out what to do if it won't start trimmer. Causes, which most often lead to such troubles, will be discussed below.
Where to start diagnosing faults if the trimmer does not start? In situations where the tool stalls immediately after starting, it is worth inspecting the following components of the unit:
It is the breakdown of the above locations that most often leads to bad trimmer starts. If you don't start when you find out the reason why not her trimmer right away. Let's look at how to eliminate such troubles.
Let's say your trimmer won't start. In this case, the first thing you need to do is check whether there is enough fuel in the tank, and also evaluate the quality of the fuel mixture. It is necessary to refuel a motorized unit exclusively with high-quality gasoline. It is recommended to use fuel of a grade not lower than AI-95. Refilling the trimmer with fuel of unknown origin, purchased not at a gas station, is fraught with frequent malfunctions of the tool. This may cause damage to the cylinder-piston system. Repairs in this case often exceed the cost of the device itself.
Why won't my petrol trimmer start? This can also be caused by improper preparation of the fuel mixture, which consists of oil and gasoline. The proportions in which these components are combined are indicated by the manufacturers in the trimmer's instruction manual. It is highly not recommended to prepare the fuel mixture in large volumes, that is, for the future. If the chainsaw does not start: why and solutions. The engine is 4-stroke. Trimmer (petrol) won't start? The best among inexpensive ones. After all, with long-term conservation, a loss of the defining properties of the substance occurs. Therefore, if not trimmer starts, it is worth draining the old fuel and using a freshly prepared fuel mixture.
What to do if the fuel mixture you are using is in perfect order, but still does not starts petrol trimmer? The reasons for the failure of the mechanism may lie in excessive moisture in the spark plug channel. To diagnose and fix the problem, you must do the following:
It is recommended to dry the spark plug channel for at least half an hour. However, in no case should you resort to calcining its elements. After all, heating the spark plug can lead to its final damage. What to do if the functional unit was serviced in accordance with the above recommendations, but the trimmer does not start, is there a spark? In this case, it is worth treating the threaded connection with gasoline. The latter does not need to be heavily soaked in fuel. It should be only slightly moistened. Such actions should be taken to ensure ignition. Gasoline trimmer won't start? Causes and solutions on. After all, no matter how strong a spark the candle gives, in a completely dry chamber there will simply be nothing to ignite.
In this video we will try to look at the main malfunctions that arise during the operation of a motorcycle.
Practical advice on eliminating malfunctions. From personal experience.
Even if in this case the trimmer does not start, it is worth assessing the quality of the contact between the high-voltage wire and the spark plug. If there is no spark (even if there is a reliable connection between these elements), most likely the problem is caused by a breakdown of the ignition unit. In this situation, you will have to turn to the services of specialists who will reinstall the unit.
Another common reason why the trimmer will not start is if there is a clog in the filter area. To confirm your guess, it is enough to dismantle the indicated block and try to start the unit without it. If the trimmer engine starts, most likely you will have to replace the air filter or at least thoroughly blow out the old one. If there is heavy contamination on the surface of the filter element, it is necessary to use a new mesh. When resorting to such actions, you should not leave the suction pipe completely without a filter. Gasoline trimmer - surprisingly the right tool, with which you can mow not only a small clearing in front of the house, but also an entire lawn large sizes. After all, haste in this case can lead to the need to repair the entire piston group of the unit’s engine.
Often, the engine of branded trimmer models stalls as a result of a clogged breather. The main task of this component is to equalize the pressure in the fuel tank. If the unit becomes dirty, a vacuum is formed here, which significantly complicates the supply of fuel. The problem can be resolved by cleaning the breather using a regular sewing needle.
The stable operation of the trimmer may be impaired as a result of a build-up of dirt in the exhaust channel or the formation of a blockage on the muffler mesh. This problem most often arises during the operation of older generation trimmer models. The chainsaw will not start: causes and solutions. The issue is resolved by dismantling the anti-spark mesh and cleaning it.
To ensure that the unit is always in functional condition, you should follow a few simple rules:
In order for the unit to remain in working condition, it is necessary to properly prepare it for storage during the winter. First of all, you should completely disassemble the tool, and then rinse and clean the components. 5 main chainsaw breakdowns: causes and solutions. It is also important to inspect the functional units for damage, if necessary, eliminating deformations of parts, all kinds of distortions, and tears in materials.
By placing trimmer for storage, it is worth filling the gearbox with a sufficient amount of oil. Then you need to clean the air filter, partially disassemble, blow out and wash the engine of the unit. After drying all the mechanisms, you should lubricate the moving elements. To treat the piston system with oils, you must first remove the spark plug. Then you need to move the piston to the extreme position, then pour a small amount of oil into the spark plug hole and scroll the crankshaft. If you plan to store the gasoline trimmer outside of the house during the off-season, it is recommended to tightly wrap the engine of the unit with an oily rag. This will avoid the development of corrosion on the surface of important components of the mechanism.
A trimmer, both electric and with an internal combustion engine (ICE), is an indispensable tool in summer and autumn period for owners of dachas and private houses. With its help, weeds are easily removed, small shrubs and the lawn is trimmed. But, like any equipment, trimmers fail at the most inopportune moment. To troubleshoot problems with your own hands, the user of this equipment first needs to determine the cause of their occurrence.
At the lawn mower and electric trimmer, if we do not consider breakdowns associated with the boom and mowing head, breakdowns mostly occur in the engine area.
Typical breakdowns petrol trimmer The problems that owners of this unit most often encounter are the following:
Since the design of an electric mower is much simpler than a motor trimmer, there are few reasons for its failure.
It should be noted that it is better to entrust the elimination of some of them to a specialist.
Basically, the trimmer stops working normally in the following cases:
The reasons why a gasoline trimmer stopped starting may be different, so it is necessary to carry out a step-by-step diagnosis of the device.
Remember that before starting the unit you must always checking the availability and quality of fuel. In this case, you shouldn’t be greedy and save money, or “get smart” about the amount of oil added. Everything must be done in accordance with the manual supplied with the device, since if the piston group fails, replacing it will cost about 70% of the total cost of the trimmer. Fill with fuel in the expectation that you will completely use it up when performing the work. . Gasoline remaining in the tank loses its properties after some time and can harm the engine.. Therefore, do not prepare the mixture for future use or large quantities. If the lawn mower has trouble starting, try draining the “old” fuel from the tank and refilling it with a freshly prepared mixture.
Important! Filling the device with fuel, the origin of which is unknown, is fraught with danger negative consequences. Gasoline must be of high quality, purchased at a gas station, and its grade must be at least AI-95.
So, you changed the fuel, but nothing changed, and the trimmer still won't start. In this case, it is worth checking the spark plug channel to see if it is filled with a combustible mixture. Users often translate air damper to the “OFF” position when starting, and when the engine starts, do not turn it to the “ON” position, after which it stalls. Further, an attempt to start the internal combustion engine again leads to the spark plug being flooded with gasoline, and starting becomes impossible. To diagnose and fix possible problem in this node, do the following.
If the internal combustion engine does not start, you will need to check the spark. For this:
Normally, each time the piston pumps, a spark should jump between the electrodes of the spark plug. If there is a spark, then the reason that the internal combustion engine does not start must be looked for in other components of the device.
To better understand the process of how to test a spark plug for the presence of a spark, you can use this video, where the test is shown using the Soyuz lawn mower as an example.
If there is no spark, then at the beginning check the cable connecting the spark plug to the coil - perhaps this is the reason. You can ring it using a tester. If a circuit break is detected, the high-voltage wire will need to be replaced.
Also, the reason that the spark has disappeared may be ignition coil malfunction(magneto). The figure below shows what a coil (magneto) from a Patriot gasoline trimmer looks like.
To exclude a malfunction, you will need to use a tester to check the trimmer magneto, namely, its primary and secondary windings. On the primary winding, the resistance should be in the range from 0.4 to 2.0 Ohms. If the device shows 0, this means that a short circuit has occurred in the winding, and if infinity is a clear sign of an open circuit. The resistance on the secondary winding should be in the range from 6 to 8 kOhm.
On some coils it can reach a value of 15 kOhm.
If your lawn mower does not start well or immediately stalls after starting, you should pay attention to the air filter, as it may be clogged, as a result of which air does not enter the combustion chamber and the fuel does not ignite. To check if the problem is in the filter, remove it and try to start the engine. If it works, then the reason has been found. The filter must be replaced or thoroughly washed and dried before installation. In case you find oil in air filter, it must be washed with gasoline, wrung out well and dried for at least 2 hours before reinstalling.
If the unit still does not start with the air filter removed, it is recommended to check the fuel filter.
This filter cleans fuel from possible contamination. If it is clogged, then gasoline does not enter the cylinder, and, accordingly, the unit does not work or stalls after starting. The fuel filter is located at the end of the intake hose that is located inside the fuel tank. To get to the filter, you need to remove the plug with the tubes coming out of it.
When removing the plug, the intake hose may become detached and remain in the tank. It is removed using tweezers.
Next, remove the old fuel filter from the hose and put a new one, purchased in advance, on it. You can also clean the fuel filter, if you don't have a new one. The filter must be secured to the hose using a spring clamp.
Install the intake tube onto the plug and insert the latter into the tank.
It should be noted that in some trimmer models the intake hose is not located on the plug, but inside the tank. You can remove it using tweezers or a hook bent from wire.
Breather is check valve, which is designed to equalize the pressure in the gas tank. If it is clogged and does not allow air to pass towards the tank, then a vacuum forms inside the fuel container and fuel stops flowing into the carburetor. To check the serviceability of the valve, remove the hose that goes from the reservoir to the carburetor. If gasoline does not flow out of the tank, it means the breather is clogged.
Trimmer users often wonder: where is the breather? This valve is usually located in the gas tank cap and looks like the following picture.
Cleaning the breather is very simple: disassemble the valve and wash all its components. In some lawnmowers this valve can be positioned straight on the fuel tank. It will not be possible to find it right away, since it is hidden from view under the starter housing. This breather can be cleaned using a regular needle.
The reason that the trimmer has significantly lost power, and when trying to increase engine speed, it gains them slowly, is often a clogged exhaust channel through which exhaust gases exit the combustion chamber.
It is necessary to remove the muffler so that no fumes get inside the cylinder. Next, clean the exhaust channel of carbon deposits.
This must be done very carefully, preventing carbon deposits from entering the combustion chamber.
After this procedure, the weak power of the unit and the slow increase in the speed of rotation of the mowing head will no longer frustrate you.
If the compression is insufficient, then in most cases it will not be possible to start the engine. To check the compression, you can use a car compression tester.
What compression should it be? Normally, compression should be not lower than 8 kg/cm 2. Although, even at 8 kg/cm2, some engines do not idle and stall because fuel is not pumped sufficiently. If your lawn mower does not pump above 8 kg/cm2, you will have to check the cylinder, piston and rings.
Also, poor compression may be due to loose carburetor. Check if it is wobbly. If so, tighten the fasteners holding it in place well. Also, if the carburetor is not screwed on properly, you may notice that gasoline drips during operation.
Many users of mowers have noticed that after some time after the device starts operating, it begins to vibrate strongly. Some trimmers, mainly more expensive models, have an anti-vibration system in the form of shock absorbers located between the engine and the rod. But in some cases, even this cannot save you from strong vibration. The reason that strong vibration appears in the trimmer may be a small amount or complete absence of lubricant on the rigid or flexible shaft located inside the device’s rod.
Replacement hard shaft lubrication happens as follows:
Flexible shaft lubrication is done as follows:
This is done like this: first you need to lubricate the end of the cable, and then insert it into the rod, after which, as it moves inside the pipe, you should apply lubricant to the part and distribute it evenly over the surface. Then insert the rod with the flexible shaft into Electrical engine and secure it.
If lubrication does not help and vibration continues to appear, you will need to change the flexible shaft.
Overheating of the trimmer can occur for many reasons:
The latter happens if you set unsuitable mowing head for the machine, or when the axis moves inside the rod. These changes make it harder to rotate, the load on the engine increases, and it overheats.
Trimmer ECHO SRM-2305SI
