The petrol trimmer does not start fills the candle

Gasoline trimmer won’t start: causes and remedies

petrol, trimmer, does, start

  • Diagnostic features
  • Main reasons
  • Ways to eliminate breakage
  • Recommendations for use

Taking into account the specifics of using gasoline trimmers, their owners often have to deal with certain problems. One of the most common troubles is that the lawn mower will not start or gain momentum. For the fastest and most effective elimination of such a problem, you should have an idea of ​​the main causes of possible malfunctions.

Main reasons

As practice shows, gasoline trimmers stop starting or function normally after winter, that is, long-term seasonal storage. Before further attempts to run the tool, thorough diagnostics should be performed to determine the source of the problem. At the moment, there are several of the most common causes of malfunction.

  • Initially, it is necessary to check the quality of the fuel. Saving in such cases can have extremely negative consequences. Experienced lawn mower owners and experts advise preparing a mixture, the volume of which will correspond to the upcoming work, since its surplus quickly loses its qualities.
  • Trimmers of such famous brands as, for example, Husgvarna, Makita, Stihl, are very sensitive to the fuel used. It is about the quality of the fuel and the octane number. Providing suitable operating conditions and extending the service life of equipment will allow refueling with high-quality gasoline.
  • At the moment of starting the engine of the lawn mower, it may stall due to the fact that it floods the spark plug. Often in such situations you have to deal with the need to adjust the carburetor. It is worth noting that similar problems arise when the braid stops getting hot.
  • Sometimes the tool cannot be started, although the plug is wet, which in turn indicates that the fuel mixture has entered the combustion chamber. As a rule, this is one of the symptoms that there is no spark. The reasons may be the lack of normal contact between the spark plugs and the high-voltage wire, or drying out of the threaded connection in the spark plug channel.
  • If there are no problems with the spark, and at the same time the candle itself remains dry, then most often this indicates that gasoline is not being pumped. There may be several reasons for this situation. We are talking, in particular, about the condition of the fuel filter and carburetor.
  • The internal combustion engine of the streamer does not start or immediately after starting it stops working, which may be due to clogging of the air filter, which prevents the normal supply of air necessary to enrich the mixture.

In addition to all of the above, trimmer owners have to face more serious troubles. One of these is the wear of the piston group. In such cases, entrust to professionals, which will significantly reduce costs and extend the life of the tool.

Ways to eliminate breakage

It is no secret that the best and most effective repair method is to prevent possible malfunctions. As already noted, one of the key points is how well the gasoline-oil mixture is prepared. Its components must be at least AI-92 gasoline and high-quality engine oil. The proportions for which the mixture is prepared are indicated in the manufacturer’s manual that comes with any gasoline trimmer. As a rule, oil is added to gasoline using an ordinary medical syringe. In this way, the easiest way is to maintain the appropriate proportions.

Quite often, if problems arise with starting the lawn mowers, the owners of the tool try to carry out repairs with their own hands. With the necessary knowledge and skills, this approach will significantly reduce operating costs. First of all, it is worth checking the fuel system and, in particular, the filter element. If a blockage is found, the easiest way to replace the filter is a new one. If the air filter has become the source of problems, then you can get out of a difficult situation even in the process of work with little time. You will need to do the following:

  • remove the filter element;
  • directly in the working conditions, you can wash the filter with the used gasoline;
  • when operating a scythe at home or at a summer cottage, water and simple detergents are used for cleaning;
  • after washing, the part is thoroughly rinsed and dried;
  • a completely dry filter should be lubricated with engine oil;
  • excess lubricant is removed by squeezing the filter element with your hands;
  • the cleaned part is put in place and the plastic cover is fixed with screws.

If the described actions did not provide a positive result, then the next step will be to adjust the idle speed using the appropriate carburetor screw. Many publications and videos posted on the World Wide Web are devoted to this topic. When trying to solve the problems in question, there are several steps you can take.

  • The trimmer is placed on the side so that the “air” is on top. This will allow the fuel mixture to flow to the bottom of the carburetor. Often, attempts to start the internal combustion engine are successful if you first dismantle the mentioned part and literally send a couple of drops of gasoline directly to the carburetor itself.
  • If, after all the described actions, the scythe did not work, then attention should be paid to the state of the candle and, in particular, the presence of a spark. In parallel, all fuel is completely removed from the combustion chamber.
  • Often, lawn mowers’ owners find themselves in situations when the fuel and air filters are clean, the candles are in good order, the fuel mixture is fresh and of high quality, but the internal combustion engine does not show signs of life. In such cases, experienced specialists recommend using a universal and proven method of launching for many years. It is necessary to move the choke to the closed position and pull the starter handle once. After that, the damper opens and the engine is started 2-3 times. In the vast majority of cases, the result is positive.

Problems can arise with the starter itself. Often the cable breaks and the handle breaks. You can deal with such troubles on your own. In other cases, as a rule, the starter is replaced. It is worth noting that this device can be purchased assembled and installed by hand.

The spark plug can be flooded with fuel during the start of the trimmer ICE. Even with a high-quality mixture and a good spark, it is unlikely that it will be possible to start the device. The most effective way out is to remove the candle and dry it. In parallel, you can check this spare part for operability, if any faults are detected, replace it. This procedure includes a number of simple steps, namely:

  • turn off the device and wait for the power unit to cool completely;
  • disconnect the wire;
  • remove the candle itself;
  • inspect the dismantled part;
  • make sure there is a gap (0.6 mm);
  • screw in a new, working plug and tighten it.

In practice, many repair work related to the fact that the scythe has stopped starting up and which sooner or later one has to deal with during the operation of a household lawn mower, it is quite possible to cope independently. But in case of serious malfunctions, it would be most rational to contact a specialized service. However, the key factor in such cases will be the ratio between the cost of repair and the price of a new trimmer.

Diagnostic features

From a technical point of view, trimmers can be classified as complex devices. Based on this, it is strongly recommended to carefully study the relevant instructions before using them. However, in practice, many ignore it, often later find themselves in situations where the gasoline trimmer does not start or picks up poorly during operation. It is worth noting that similar problems can be encountered when acquiring new models of equipment.

One of the most common causes of such symptoms is a long seasonal break in the operation of equipment. In addition, poor quality and untimely maintenance can lead to extremely negative consequences. It is important to remember that this is relevant both for Chinese lawn mowers and for representatives of the lineup of famous brands.

The key to effective and prompt repair will, of course, be a competent diagnostics of the device. In the process of troubleshooting, you will have to inspect and test, first of all, key elements. The list of these includes candles, a tank, filter units and fuel system valves. As practice shows, very often malfunctions of these particular elements become the reason that the lawn mower does not start. The quality and correctness of the preparation of the fuel mixture deserves special attention, especially when it comes to two-stroke engines. With regard to this parameter, the manufacturer’s recommendations should be strictly followed in order to avoid serious breakdowns and costly repairs. In the case, for example, with a piston group of internal combustion engines, costs can be up to 70 percent of the cost of new technology.

Often, trimmer owners have to deal with situations when the specified mixture is of high quality, the carburetor is in good working order and configured, and the device still shows no signs of life when trying to start the engine. In such cases, you should check the condition of the candle. The following steps will troubleshoot the problem:

  • turn out the candle;
  • wipe and dry the part (annealing is undesirable);
  • remove fuel and dry the spark plug channel for 30–40 minutes; such actions will avoid flooding the candle at the next start-up attempt;
  • completely eliminate traces of carbon deposits using a file or sandpaper;
  • set the appropriate gap;
  • put the candle in place.
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If the candle turns out to be working and the seat is completely dry, and the scythe engine does not start, then the threads should be moistened with gasoline. It is worth remembering that regardless of the quality of the spark that is emitted, initially there will be nothing to ignite in a completely dry chamber. When faced with the fact that the spark does not come, it is worth paying attention to checking the contact between the high-voltage wiring and the spark plugs. If this connection turns out to be of good quality, then it will be necessary to check the operability of the ignition system control unit. In such cases, it is unlikely that it will be possible to do without the services of a qualified specialist.

The next step in diagnosing a gasoline streamer will be to check the condition of the filters. Often, the lawn mower does not start well or does not start at all on a cold one due to the clogged air filter. This malfunction can be identified by excluding it from the system. If after that the braid starts up, then you will have to clean or change this element. Experienced users are strongly advised to periodically purge the air filter to maximize its useful life.

The described tool may also not start due to problems with the supply of gasoline caused by a dirty fuel filter. To quickly and effectively eliminate such a breakdown, you just need to replace the filter element with a new one. It is important to remember that the suction inlet must be equipped with a filter, which is provided for in all instructions. Failure to comply with these rules and recommendations can lead to expensive piston repairs. In the process of diagnosing and searching for the source of problems with starting the mower, attention should be paid to the breather, which is responsible for stabilizing the pressure equalization in the fuel tank. In addition, it is necessary to check the cleanliness of the exhaust port and the muffler mesh. As a rule, such problems are most often encountered when troubleshooting old models.

Recommendations for use

The stability of the operation of any lawn mowers and the absence of problems with starting the power unit of such devices directly depend on the conditions in which the tool is used and the quality of maintenance. And we are talking about the following basic rules:

  • in the process of work, it is necessary to pay special attention to the cooling system and other elements; it is strongly recommended to timely and efficiently clean the channels located on the scythe body and the ribs of the starter;
  • in the process of processing various elements, solvents, gasoline, kerosene and other effective means can be used;
  • these works should be carried out after the power unit has completely cooled down;
  • it is necessary to fully comply with all the rules specified in the relevant instructions drawn up by the developers of the described tool, which will avoid overloads in a warm engine, which in turn is the most common cause of serious damage;
  • all fuel residues in the internal combustion engine should be completely drained before long breaks in the operation of the streamer; it should be borne in mind that the gasoline-oil mixture decomposes rather quickly into the so-called heavy fractions, which inevitably clog the carburetor;
  • after removing the fuel, it is required to start the engine and let it run on XX until it stalls itself; in this way, the remaining mixture will be completely removed from the internal combustion engine.

Particular attention should be paid to preparing the instrument for long-term seasonal storage. This should be done to minimize the risk of problems with starting the engine. Competent preparation includes the following manipulations:

  • completely disassemble the trimmer;
  • thoroughly rinse and clean all elements to which there is access;
  • inspect the parts of the lawn mowers in order to identify defects (mechanical damage found in this case should be eliminated);
  • pour engine oil into the gearbox;
  • carry out high-quality cleaning from clogging of the air filter element;
  • having the appropriate knowledge and practical skills, it is possible to carry out a partial disassembly of the power plant, followed by purging and lubrication of the moving elements;
  • wrap the assembled gasoline braid with a pre-oiled rag.

In addition to everything already listed, it is necessary to lubricate the piston group. This algorithm provides for the following simple manipulations:

Hacking a trimmer primer bulb to work again

  • remove the candle;
  • transfer the piston to top dead center (TDC) with the help of the starter;
  • pour a small amount of engine oil into the cylinder;
  • crank the crankshaft several times.

Regardless of the cost and brand of equipment, you should clearly follow all the requirements of the relevant instructions and adhere to the recommendations of developers and experienced specialists. Today, detailed information regarding the correct use of such equipment can be easily found on many specialized sites and forums.

It is important to remember that competent operation of lawn mowers and its timely maintenance (independent or in service) is a guarantee of the longest possible service life and minimum costs.

Next, watch a video on how to determine and eliminate the reason why the gasoline trimmer does not start.

Useful material from which you will learn how to start a naughty gasoline trimmer that does not want to work!

The summer time has come, and lawn-mowers as usual rattled on the personal plots. Great tool, powerful and mobile. With the help of a gasoline trimmer, you can cut the grass and get rid of the dried weeds. However, there are times when the lawn mower will not start, work intermittently or not at full capacity. There is certainly no time for work! And as they say, you pull the starter handle more than you mow.

Launching difficulties arise not only for seasoned lawn mowers, but also for new ones. How to be in this situation? There is only one way out. to heed the advice of experts and take advantage of their practical experience.!

We carry out diagnostics of a candle and a candle channel

If the quality of the fuel mixture is not in doubt, and the lawn mower stalls when started, then a flooded spark plug may be the cause. Here, for repairs, an ordinary candle wrench is suitable (every motorist probably has) and a spare candle.

  • We unscrew the candle and wipe it;
  • Dry it thoroughly (it is not necessary to ignite it);
  • We drain the excess fuel in the chamber through the spark plug hole and dry it;
  • We clean the old candle from carbon deposits using a file or a lady’s file;
  • We set a gap with a distance of 1 mm (you can check with any coin);
  • We put everything back in place and try to start the trimmer.

It is necessary to dry the canal for at least 30–40 minutes. Otherwise, there is a risk of re-filling and a new candle.

If the candle is working, the socket where it is located is completely dry, and the lawn mower does not want to start, lubricate the threaded connection with gasoline. It should be slightly damp. No matter how wonderful a spark the candle gives out, there is simply nothing to light up in a dry chamber.

If the trimmer motor still does not start, you should exclude such a reason as the absence of a spark due to poor contact between the spark plugs and the high-voltage wire. If the connection is of good quality, and there is still no spark, most likely, your ignition unit has “flown”. Here it will not be possible to do without a master, since the part is not repaired, but is sold as a single unit.

Breather cleaning

Often, the engine of branded trim models stalls as a result of a clogged breather. The main task of the specified component is to equalize the pressure in the fuel tank. The reasons why the gasoline does not start and you never know what other reasons may be. In case of contamination of the unit, a vacuum is formed here, which significantly complicates the supply of fuel. The problem can be eliminated by cleaning the breather with a regular sewing needle.

Off-season petrol trimmer storage tips

When storing the trimmer, it is worth filling the gearbox with enough oil. Then you need to clean the air filter, partially disassemble, blow out and rinse the engine of the unit. After drying all mechanisms, the moving elements should be lubricated. To process 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 rotate the crankshaft. If you do not plan to store the petrol trimmer in the off-season in the house, it is recommended to tightly wrap the engine of the unit with an oiled rag. This will avoid the development of corrosion on the surface of important parts of the mechanism.

READ  How to Wind a Fishing Line On a Trimmer: Examples and Recommendations

Some tricks for working with the petrol trimmer.

Flooded engine lawn mowers.

If at least some spark discharge on the electrodes is still possible on a wet candle, then a spark discharge on a “flooded” candle will no longer be possible. We hear about “flooded” candles more often than about “flooded” engines. It is even difficult for many to imagine such an engine until they personally encounter it.

A wet spark plug or a flooded candle is the main symptom of either an inoperative spark plug, the absence of high-voltage voltage on the spark plug electrodes, or an over-enrichment of the fuel mixture supplied to the engine working chamber.

Additionally, this can include cases with poor quality fuel, low high voltage and poor compression ratio. As a rule, one thing entails some other manifestations and you can easily get confused in determining the main, root cause of the malfunction.

Spark plug.
We got another lawn mower, or a petrol trimmer, where they could not start the engine. Even no recommendations from the observers and “friendly” neighbors helped. We replaced the spark plugs with new ones, but there was no result, and each next spark plug was twisted out wet.

Lawn Mowers Engine Air Filter.
The petrol trimmer engine was opened in stages. The air filter ring has been completely moistened with fuel. A large amount of fuel was present in the compartment where the filter element is installed.

The throughput of the wet filter decreased, and even with a dry spark plug, the engine could not start because the wet filter element blocked the supply of the required amount of air. The spark plug electrodes were immediately flooded with fuel at the first attempt to start the engine.

Muffler for lawn mowers.
Through the mounting holes of the muffler, on one of the mounting studs, an oil stain was clearly visible. Traces of oil can appear if the fastening nuts are loosely tightened, when used oil vapors together with exhaust gases seep through weak seals, but on this lawn mower the tightening of the nuts corresponded to the required torque.

And in the muffler itself, we found about 50. 60 ml of fuel. Not oil, but the same fuel that was in the fuel tank.

Lawn mowers engine.
When opening the engine, we expected to find some surprise, and this was not a vain expectation. The piston contained a certain amount of dense sooty carbon deposits. Stuck piston rings and a layer of carbon deposits on the piston indicated that when working with the lawn mower, the engine temperature was exceeded, which was running on an over-enriched mixture.

Many manufacturers write directly on the container that the oil has good antiwear, lubricating, anti-corrosion and temperature properties. But none of them will write: “Do not overheat the engine!” or “Strictly adhere to our recommendations!” It is difficult to say what was poured instead of oil, or unmeasured oil was poured.

Crankcase.
Most of all we were surprised by the crankcase, which was filled to the brim with fuel. It happens when a certain amount of fuel is collected in the crankcase, but so that the crankcase is completely filled with fuel is a rarity for us.

The engine worked ‘by the sweat of the brow’, and the operator did not pay attention to the fuel consumption, increased smoke content, and a decrease in engine speed. The lawn mowers engine flooded to the very edge of the crankcase.

Carburetor lawn mowers.
There were no difficulties when disassembling the carburetor. Outside, the carburetor of the lawn mowers was wet and dirty, which indicated that fuel was leaking, but we did not find the place of leakage during an external examination.

And inside the carburetor there were dense deposits located along the edge of the seat hole of one of the diaphragm valves, which indicated the poor performance of this valve when its petal did not press tightly against the seat.

Will not start on cold trimmer. eliminate the cause

The trimmer will not start when cold. Cause. air leaks, which prevents fuel from being pumped. Into the cell.

If, even in this case, the trimmer does not start, it is worth assessing the quality of the contact between the high-voltage wire and the candle. In the absence of a spark (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 wizards who will reinstall the node.

complex reasons for lawn mowers failure

If the step-by-step troubleshooting algorithm does not work, and your scythe still does not start or stalls, it is worth inspecting the carburetor and the engine itself. A clogged carburetor can be one of the reasons for erratic tool performance. There are three main problems here:

  • Clogged ducts or nozzles. All this is cleaned by special washes or blown by a powerful jet of compressed air from the compressor. Do not use needles and wires, as the bore may be damaged;
  • Worn carburetor gasket. Exit. replacement of a failed gasket;
  • Violation of tightness. To check this indicator, you can use an ordinary household tonometer, replacing it with a suitable pressure gauge. Watch the readings: if they do not change, everything is fine, but if the pressure starts to drop, then some part of the carburetor is faulty. We’ll have to find it and replace it with a new one.

If everything is in order with the carburetor, then the gasoline trimmer may not start due to wear of the piston group. If chips, scratches or scuffs are found on the piston or cylinder, they should be replaced. Piston rings are subject to mandatory checks. A small backlash of the piston when rocking the connecting rod indicates that it is time to change the rings. This procedure is best entrusted to the specialists of the service center.

How to start diagnosing lawn mowers

If the lawn mower does not start or immediately stalls after starting, it is necessary to sequentially check all the main components and assemblies. The verification algorithm is as follows:

  • Fuel tank (fuel quality);
  • Candle and candle channel;
  • Air filter;
  • Fuel filter;
  • Breather;
  • Exhaust channel.

These nodes are most often the source of major problems that can be eliminated after a thorough inspection.

Why the lawn mower won’t start. troubleshooting

Caring for the personal plot, summer residents periodically encounter the fact that the lawn mower does not start. There are many reasons for tool failure. To correctly diagnose the problem, the owner of a useful unit in the country needs to know the device and the principle of operation of its individual parts.

  • How to start diagnosing lawn mowers
  • Checking the fuel mixture
  • We carry out diagnostics of a candle and a candle channel
  • Filter diagnostics for lawn mowers
  • Breather and exhaust port
  • complex reasons for lawn mowers failure
  • Rules for the operation and storage of lawn mowers

How to start a trimmer if it won’t START.

Filter diagnostics for lawn mowers

Another reason why the gasoline scythe stalls is the air filter. To eliminate it, try removing the filter and starting the trimmer without it. If it works out, then you will have to change the air filter to a new one, or at least blow through and thoroughly clean the old one.

The petrol trimmer may not start if the fuel filter is dirty. This is the next step in our algorithm. Here we check the condition of the filter element and, if necessary, replace it with a new one. When replacing, try not to leave the suction inlet without a filter at all, this is prohibited by any operating instructions. Haste can turn into repair of the engine piston group.

We carry out diagnostics of a candle and a candle channel

If the quality of the fuel mixture is not in doubt, and the lawn mower stalls when started, then a flooded spark plug may be the cause. Here, for repairs, an ordinary candle wrench is suitable (every motorist probably has) and a spare candle.

  • We unscrew the candle and wipe it;
  • Dry it thoroughly (it is not necessary to ignite it);
  • We drain the excess fuel in the chamber through the spark plug hole and dry it;
  • We clean the old candle from carbon deposits using a file or a lady’s file;
  • We set a gap with a distance of 1 mm (you can check with any coin);
  • We put everything back in place and try to start the trimmer.

It is necessary to dry the canal for at least 30–40 minutes. Otherwise, there is a risk of re-filling and a new candle.

If the candle is working, the socket where it is located is completely dry, and the lawn mower does not want to start, lubricate the threaded connection with gasoline. It should be slightly damp. No matter how wonderful a spark the candle gives out, there is simply nothing to light up in a dry chamber.

If the trimmer motor still does not start, you should exclude such a reason as the absence of a spark due to poor contact between the spark plugs and the high-voltage wire. If the connection is of good quality, and there is still no spark, most likely, your ignition unit has “flown”. Here it will not be possible to do without a master, since the part is not repaired, but is sold as a single unit.

READ  Why The Petrol Trimmer Stalls

Checking the fuel mixture

Before starting the engine of the gasoline streamer, check the presence and quality of the fuel mixture. Do not save, do not be greedy and do not be clever in this matter. Repair or replacement of the piston group will cost you too much (sometimes up to 70% of the cost of a new tool). Prepare the oil-fuel mixture strictly according to the instructions. Calculate its amount based on real needs. Excess gasoline left over after work loses its quality over time.

Breather and exhaust port

Often, “gentle” branded lawn mowers will not start and stall due to a dirty breather. The main function of this element is to equalize the pressure in the gas tank. When this unit becomes clogged, a vacuum is created in the tank, which prevents the supply of fuel. You can eliminate the malfunction by cleaning the breather. You can use a regular needle for cleaning.

Normal operation of streamers with internal combustion engines can be disrupted due to the ingress of dirt into the exhaust duct or clogging of the muffler mesh. There is such a problem on older generation models. The issue can be resolved by traditional cleaning and removal of the anti-spark grid.

Rules for the operation and storage of lawn mowers

In order for the lawn mower to start well in the future, you need to provide it with good storage and operation conditions:

  • during operation, carefully monitor the cooling system, carefully and in time clean the channels in the housing, as well as the ribs of the starter;
  • if necessary, use solvents, kerosene and other detergents for cleaning;
  • do not clean the tool “hot”. let it cool;
  • strictly follow the instructions for the operating mode, otherwise you may overheat the engine;
  • if you do not plan to use the lawn mower in the next month, the fuel mixture must be drained from it, since over time it decomposes into heavy fractions, which will definitely clog the carburetor channels;
  • after draining the fuel, let the trimmer idle until it stalls, this will help completely remove the remaining working mixture.

Before winter storage, follow these steps:

  • disassemble the braid completely, rinse and clean all the details you can;
  • inspect the parts for damage, if necessary, eliminate distortions, tears, bends and any other malfunctions;
  • fill in a sufficient amount of oil into the gearbox and clean the air filter;
  • you can partially disassemble the motor, rinse, blow out and grease all moving parts;
  • in order to lubricate the piston, you need to unscrew the spark plug, raise the piston to the dead center with the starter, pour a little oil into the spark plug hole and turn the crankshaft a couple of times;
  • if you are storing the lawn mower outside the house, wrap the engine with oiled rags.

Remember, careful observance of the rules will allow you to forget that it is bad to start the lawn mower for several seasons.

The main malfunctions of gasoline and electric trimmers

Lawn mowers and electric trimmers, apart from damage to the boom and mowing head, mostly occur in the area of ​​the engine.

Fuel tank (fuel quality)

Remember that it is always necessary to check the availability and quality of fuel before starting the unit. In this case, you should not be greedy and save, as well as “be smart” about the amount of added oil. Everything must be done according to the manual attached to the device, since if the piston group fails, its replacement will cost about 70% of the total cost of the trimmer. Fill in fuel on the basis that you will completely use it up when performing work. The gasoline remaining in the tank loses its properties after a while and can harm the engine. Therefore, do not prepare the mixture for future use and in large quantities. If the lawn mower does not start well, try draining the “old” fuel from the tank and refueling it with fresh mixture.

Important! Filling the device with fuel, the origin of which is unknown, is fraught with negative consequences. Gasoline must be of high quality, purchased at a gas station, and its brand must be at least AI-95.

Exhaust channel

The reason that the trimmer has significantly lost power, and when trying to increase engine speed, it picks up slowly, is often a clogged exhaust channel through which exhaust gases come out of the combustion chamber.

It is necessary to remove the muffler so that no burns get into the cylinder. Next, clean the exhaust channel from carbon deposits.

This must be done very carefully, avoiding the ingress of carbon deposits into the combustion chamber.

After this procedure, the weak power of the unit and a slow increase in the speed of rotation of the mowing head will no longer upset you.

Malfunctioning electrical trim tabs

Since the device 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:

  • malfunction of the electrical cable;
  • the control button is faulty;
  • burned out motor stator winding;
  • breakage of contact connections on the engine.

Fuel filter

This filter removes possible contaminants from the fuel. 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, which is 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 suction hose may come off and remain in the reservoir. It is removed with tweezers.

Next, remove the old fuel filter from the hose and put the new one purchased in advance on it. You can also clean your fuel filter if you don’t have a new one. The filter must be secured to the hose with a spring clip.

Place the intake tube on 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 with tweezers or a hook bent from a wire.

Breakage of petrol trimmers

Typical breakdowns of a gasoline trimmer, which the owners of this unit most often encounter, are as follows:

  • engine breakdown;
  • carburetor problems;
  • fuel supply problems;
  • muffler malfunction;
  • breakdown of the gearbox;
  • the starter has broken;
  • air filter problems;
  • gas tank breather clogged.

Electric trimmer vibrates

Many mower users have noticed that some time after the start of the machine, it begins to vibrate strongly. On some trimmers, mainly in more expensive models, an anti-vibration system is installed in the form of shock absorbers located between the engine and the boom. But in some cases, even she does not save from strong vibration. The reason that a strong vibration appears in the trimmer may be a small amount or a complete absence of lubrication on a rigid or flexible shaft located inside the apparatus rod.

Rigid shaft lubrication is changed as follows:

  • unscrew the gearbox located at the bottom of the rod;
  • after removing the gearbox, you will see the end of the shaft, which must be pulled to remove the part;
  • after removing the shaft, it must be abundantly lubricated with a special grease “Shrus-4” or the usual one. “Litol-24”;
  • apply a small amount of grease to the shaft and spread it evenly along the entire length of the part, including the splines at the ends of the rod (if they work, the shaft will have to be replaced);
  • after lubrication, insert the shaft back into the rod and put the gearbox in its original place.

The flexible shaft is lubricated as follows:

  • unscrew and remove the mowing head;
  • remove the rod from the electric motor by unscrewing a couple of bolts;
  • pull the flexible cable out of the rod;
  • lubricate the cable with grease along the entire length.

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 flexible shaft rod into the electric motor and secure it.

In the case when the lubrication did not help, and the vibration continues to appear, you will need to change the flexible shaft.