The trimmer for grass does not suck gasoline what is the reason.

Why the trimmer for the grass does not start: the causes of the malfunction and ways to eliminate them

There are no unnecessary phrases in the operating instructions, everything that is proposed is aimed at uninterrupted operation of the gasoline pump. Cleaning all parts after each cycle of work facilitates the removal of unexplored residues and dirt. Clean only chilled nodes. This method contributes to the quality of the air cooling of the engine and the gearbox.

For refueling, you must use fuel with recommended oil in the instructions. If the fuel mixture remains in the fuel tank, the oil will swim and, when starting, land on the damper, worsening its adjustment. The mixture may besiege and clog fuel in the carburetor.

When saving the equipment for the winter, inspect, lubricate the gearbox and the piston system, wrap the entire saw in a lubricated rag and store it in a dry place.

This is impossible, dangerous for the instrument and health of the mower, use a metal cable instead of fishing line. It cuts more efficiently, but the load on the gear and the engine increases. A worn piece of wire flies at the speed of a bullet during disconnection. Effective mowing can lead to the rapid wear of the piston group of the engine. For greater efficiency of the mowing, it is proposed to use the profile of the “Asterisk” line.

While leaving the personal plot, sometimes people have to face the fact that their lawn mower is not started. There are several reasons for the refusal of this tool.

The lawn mower will not start. the reasons

Incorrect storage, a long break in extreme, untimely maintenance and other factors lead to the fact that the lawn mower may stop starting.

Diagnostics of the reasons should be started with checking the main nodes. fuel tank, candles and candle canal, air and fuel filters, saopan, graduation channel. Most often, problems are associated with one of these nodes, and their thorough inspection will help to decide why the lawn mower will not start.

If you use low-quality fuel (below AI-92), this can lead to a breakdown of the cylinder-piston system, the repair of which will result in about a third of the cost

In addition, it is important to observe the correct ratio of gasoline and oil specified in the operating guide to your specific model

The operation of the engine can also prevent fuel filter pollution. If this problem is detected, you need to replace the filter. Air filter also does not hurt to check also. When contaminating it, it is necessary to dismantle it, rinse in water with detergents, dry, grease in oil and put in place. Spark plugs that do not show signs of life must be replaced with new.

Sometimes the lawn mower starts up normally, but then stalls. This is mainly due to incorrect tuning the carburetor or its reservation. Determine that the reason is precisely in this, you can by vibration that are noticeable during operation. You need to configure the fuel supply adjustment, following the instrumentation instructions.

The lawn mower is poorly started on hot

When the lawn mower worked properly, and after a short break does not want to start again, you need to press the gas trigger and sharply pull the starter cord several times in a row, until the engine starts and only then release the gas trigger.

The lawn mower is not started on a cold

At the factory, cold motorcycles are pressed for gas, on the contrary, is not recommended. It is necessary to tilt the lawn mower so that the air filter is at the top and click on the leak button 5-6 times, then install the function of switching the functions to the Start position and pull over the cord several times before the engine factory. After a few seconds of operation, braids for the grass, the start system can be turned off.

What to do if the lawn mower does not start ? In this article we will consider the main reasons for this breakdown.

Most often, the lawn mower refuses to start because the fuel fills the candle. This can happen due to the fact that worn nozzles serve too much fuel in the combustion chamber, and its excess flies a candle, which is why it cannot generate a spark. If the candle is always wet, then this may indicate the wear of the gaskets, which is why the flowing oil prevents the formation of a spark. If the candle is dry, and the lawn mower still does not start, then, first you should replace the candle itself.

Another common reason-a 4-step lawn mower refuses to start “on hot”. Here you can recommend a simple test: by clicking on the trigger, twitch the launch cord several times. If after that the engine has not started, then your tool needs a more detailed diagnosis with subsequent specialized repair.

Features of the return of the chainsaw

It is not always possible to check the tool purchased in the store in the store, since even solid trade organizations, referring to the lack of conditions and fire rules, are reduced to a minimum pre.sale preparation.

• Each new model may structurally differ from previous developments. Therefore, the start of preparation by the owner of the tool for the first launch is preceded by the study of the operating manual. Work is carried out in accordance with the recommendations of the manufacturer.
• If the new tool has clearly expressed damage, does not start or is understood, it is advisable to return the chainsaw to the seller.
• The store is obliged to accept the defective goods, exchange for an identical model or return the money. The chainsaws that have clearly expressed traces of disassembly or operational damage are not subject to return.

Defective new chainsaw, is subject to exchange at the place of purchase for 14 days. After this time, warranty obligations come into force, allowing to eliminate the instrument malfunction for free in the service center.

The reasons

Trammers for grass are reliable and durable (of course, subject to proper care). Most often, malfunctions arise due to contamination of structural elements.

If the engine of your lawn mower does not start, does not gain momentum, does not reach the power you need or suddenly stalls, it may be a reason:

• low.quality fuel (fuel mixture), it can be in long.term storage or in non.compliance with the recipe for the preparation of the mixture;
• The grass was wound on the shaft of the fishing/knife head;
• clogging of the air filter/muffler;
• Balance of the carburetor.

Ways to eliminate problems

The first three reasons are quite simple to eliminate. If the matter is the mixture, it is necessary to pour old fuel from the tank, prepare a new emulsion from high.quality gasoline and engine oil (if your motor requires a mixture) and pour it into a fuel tank. If a trimmer for grass works on clean gasoline, it’s still easier.

In the second case, it is necessary to carefully release the details of the trimmer for grass from the wound grass.

If the filter is clogged, you can try to rinse it. If this procedure has not brought the effect, replace it with a new.

The last reason why the lawn mower does not work properly will require you a little more knowledge and skills.

In order to properly adjust the carburetor of the lawn mower, it is necessary to observe a certain procedure. First of all, carefully clean the air filter. The easiest way to rinse it (it is advisable to carry out the filter with water regularly after 9-10 hours of operation).

After that, in the diagram of your trimmer for grass, which is in the instructions for the operation of the device, find the adjustment screws. Usually there are three of them: the first is responsible for the supply of fuel, the second. for idle, but the third is designed to limit the number of maximum engine speeds.

Next, you should turn on the unit and wait for the engine to warm up.

Slowly twist the first adjusting screw (fuel mixture). Catch the moment when the motor begins to stall, and turn the screw in the opposite direction 45 degrees. If you did not have time and the motor stalled, the screw should be turned 90 degrees. Open the throttle and see how the speed is going. Next, you should slowly unscrew the screw (each turn. the same 45 degrees) until the moment when, with full gas, the motor begins to firmly issue maximum revolutions.

The second screw, as mentioned above, controls the engine speed at idle. Weakening it, you reduce the number of revolutions, tighten. increase. The screw must be adjusted so as to ensure confident operation of the motor at small speeds. Accelerate the engine for better starting a little. At the same time, make sure that before the movement of the knives/coil with the fishing line, the motor makes several dozen revolutions. With poor starting the engine, screw the screw slightly.

After you have adjusted the first two screws, test the operation of the device at the maximum engine speed. If necessary, you can limit it (maximum). this will serve as protecting the motor from “boiling”. To do this, you need to do the third screw. Unscrew the fixation nut until the moment when the control screw can be calmly turned. To increase the maximum speed, the screw must be loosened to reduce. on the contrary, tighten. Fix the screw position with a nut. Test the work of the motor again.

Spend the position of the screws regularly. a high level of vibration characteristic of benzocoses can cause their involuntary shift.

Remember that carburetor adjustment is not the final procedure. During operation, Motokos, most likely, you will have to mess with it more than once, because an unbalanced carburetor is both an increased fuel consumption and a quick failure of the candles, not to mention reducing the power and productivity of the device.

Cycle: what mistakes of beginners lead to breakdown of the engine of the trimmer for grass and exclude its normal operation

6 common mistakes with fuel

The manufacturer in the instructions clearly indicates the brand of gasoline with an octane number, oil and their proportions.

The first three errors are that the user of motorcycles violates all or one of these requirements. The motor will most likely start and work, but its resource may decrease sharply.

A small amount of oil, like its absence, will lead to the fact that the walls of the cylinder will not grease normally, and the piston rings will scratch them, and not slide.

Excess oil will simply burn, forming soot. She will pollute everything, including the piston and cylinder.

Failure gets into the valve, blocks their work, after which the motor will not start.

Will have to disassemble and clean the carburetor, or even put a new. Of course, you can try to wash the piston and the cylinder: it may be possible to bring them into working condition, but it is better not to bring them to.

The fuel mixture must be prepared with high quality and in strict proportion. The repair of a spoiled engine is expensive, about 70% of the price for a new gasoline trimmer for grass.

For the preparation of high.quality fuel mixture, I have a special container with a factory division of divisions in a set of trimmer for grass. Gasoline is neatly poured into it to the level of 500 ml, and then the oil to the required label.

An alternative method is the preparation of a fuel mixture with filling gasoline into a calibrated container, for example, a liter canister or a plastic bottle to a label, and an oil additive with a medical syringe according to its divisions.

The dosage with a syringe is more convenient, is considered the most popular way.

I recommend filling gasoline through a funnel with a narrow neck that has a filter: a metal mesh. protection against small garbage.

The prepared mixture should be well shaken and mixed until a uniform color appears. Only after that it can be poured into the tank.

If the mixture does not blame, then it will remain in the tank, and through the carburetor will enter the combustion chamber in portions with different ratios of gasoline and oil.

Fractions of clots of oil clog a candle. The motor stops, stalls, does not start. This is the fourth mistake of beginners.

It should be borne in mind that gasoline is hazardous. The risk of fire exists. Therefore, it is necessary to fill the mixture at a safe distance from the buildings, and in the case of the strait, which often happens to eliminate the causes of a possible fire. Violation of fire fighting measures. error

After pouring the fuel into the gas tank, the latter closes with a screw plug and the lack of leaks is checked. The trimmer for the grass is raised up so that the gasoline fills the cork. There should be no subterations from under the lid or from the fuel hoses.

Lack of such a check. an error can cause a fire.

There is one technical cunning that can cause a benzotrimer motor is not started due to the cessation of fuel supply. If you look carefully at the center of the traffic jam, then a round hole is clearly visible.

We turned Motokosa. Gasoline filled the cork, but does not flow through the hole: there is a sapphone inside. He is working.

On the inside, its design is clearly visible: a valve system of plastic and rubber is built.

In the usual state, the valve is pressed to the hole and the fuel does not flow. Когда бензомотор работает, то топливная смесь расходуется через карбюратор. A vacuum is created in the tank. The vacuum opens the valve of the saapon, the pressure is restored.

You should know the two consequences of a malfunction of the sapuna:

• Constantly open hole. fuel pours out of the tank during its inclinations (excess consumption and the probability of fire).
• Contamination or sticking of the valve channel is the reason that the lawn mower does not start or stalls.

Check the soundtress is easy: you need to blow it in both directions.

All about the gas tank cover, including the repair of the saapun, is shown in the video of Bogdan Shabanov.

3 additional advice associated with limited chemical resistance of a mixture of gasoline with oil:

• Do not create an excessive fuel supply. Use freshly prepared fuel mixture. In a maximum of a couple of weeks, she will lose her useful qualities;
• Prepare as much fuel as it will go to one mowing during the day. At the end of the work, drain the rest from the gas tank and burn the last drops from the fuel canal with a neglected engine;
• It is especially dangerous to leave the mixture in the gas tank for a long time. winter. In the spring, you will make sure that the engine does not start without cleaning the carburetor (gasoline evaporated, the oil thickened and glued the valve).

In more detail, the technology for eliminating these malfunctions shows in its video video “Chinese lawn mower is not started” Sergey Lesnik. Pay attention to the fuel filter.

To adjust the work of the carburetor allows a special screw, but it is not worth it to twist it without need: the factory adjustment is accurately exhibited. It is better for novice users to contact the service center.

Cycle: why the piston may not move inside the cylinder

The flywheel of a trimmer for grass, aka Magneto’s rotor with magnets, is fixed on the shaft with a key.

This is usually a reliable connection. Under the flywheel there is a sealing oil seal that does not pass the oil from the crankcase out. But when he wears out, the craftsmen have to remove the flywheel and change the oil seal with a new.

Otherwise, the oil flies everything, including the air filter.

At the same time, it is not so easy to remove the key: people make special pullers.

When looking for information on trimmers, I came across a video of one master, who was brought into the repair of the lawn mower, where the flywheel gap was absent. Perhaps a factory marriage. Naturally, such a motor will not start.

A similar reason should also be borne in mind.

Ways to eliminate breakdowns

It is no secret that the best and most effective way of repairing is a prevention of possible malfunctions. As already noted, one of the key points is how correctly the gasoline-oil mixture is prepared. Its components should be gasoline at least AI-92 and high-quality motor oil. The proportions, taking into account the mixture, are indicated in the manual of the manufacturer, which is included in the supply of any gasoline trimmer for grass. As a rule, oil to gasoline is added using an ordinary medical syringe. In a similar way it is easiest to observe the appropriate proportions.

Quite often, when problems with the launch of motorcycles arise, the owners of the tool try to carry out repairs with their own hands. In the presence of the necessary knowledge and skills, this approach will significantly reduce operational expenses. First of all, it is worth checking the fuel system and, in particular, the filtering element. If clogging is detected, the filter will be easiest to replace with a new. If an air filter has become source of problems, then you can get out of a difficult situation even in the process of work with minor time costs. The following actions will need to be performed:

• remove the filter element;
• Directly in working conditions, you can rinse the filter used by gasoline;
• When operating, braids for grass or at a summer cottage for cleaning use water and simple detergents;
• After washing, the part is carefully rinsed and dried;
• A completely dry filter should be lubricated with engine oil;
• excess lubricants are removed by compressing the filter element with the hands;
• The cleaned part is put in place and the plastic cover is attached with screws.

If the described actions did not provide a positive result, then the next step will be the clearance adjustment using the corresponding carburetor screw. Many publications and videos posted in the open spaces of the World Wide Web are devoted to this topic. When trying to solve the problems under consideration, you can take several steps.

• The trimmer for the grass is placed on the side so that the “air” is from above. This will allow the fuel mixture to enter the lower part of the carburetor. Often, attempts to launch the internal combustion engine are successful if you pre.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 braid could not be brought into working condition, then the candle and, in particular, the presence of a spark should be paid attention to. In parallel, all fuel from the combustion chamber is completely removed.
• Often, the owners of the benzos are in situations where the fuel and air filters are clean, the candles are good, the fuel mixture is fresh and high.quality, but the internal combustion engine does not show signs of life. In such cases, experienced experts recommend using universal and proven many years of practice by launching. It is necessary to transfer the air damper to a closed position and pull the starter handle once. After the damper, the engine is opened and the engine is launched 2-3 times. In the vast majority of cases, the result is a positive.

Problems may arise with the starter itself. Often there is a cliff of the cable and a breakdown of the handle. You can cope with such troubles yourself. In other cases, as a rule, the starter is replaced. It is worth noting that the Danish device can be purchased and installed with your own hands.

The light of the ignition during the launch of the ICE of the Trimmer for the grass can be filled with fuel. Even with a high.quality mixture and the presence of a good spark, it is unlikely that you can get a device. The most effective exit will be to extract a candle and dry it. In parallel, you can check this spare part for performance, when identifying malfunctions, replace it. This procedure includes a number of simple steps, namely:

• drown out the device and wait for complete cooling of the power unit;
• turn off the wire;
• extract the candle itself;
• examine the dismantled part;
• make sure the presence of a gap (0.6 mm);
• screw a new, working candle and tighten it.

In practice, many repair work related to the fact that the braid for the grass has stopped starting and which sooner or later has to face the operation of a household lawn mower, it is quite possible to cope on its own. But with serious malfunctions, it will be most rational to contact a specialized service. However, the key factor in such cases will be the ratio of the cost of repair and the price of a new trimmer for the grass.

Recommendations for operation

The stability of the work of any motorcycle and the lack of problems with the launch of the power unit of such devices directly depend on the conditions in which the tool and quality of maintenance is used. And we are talking about the following basic rules:

• In the process, it is necessary to pay special attention to the cooling system and other elements; It is strongly recommended to timely and qualitatively clean the channels located on the hull of braids for grass and ribs of the starter;
• In the process of processing various elements, solvents, gasoline, kerosene and other effective means can be used;
• The indicated work should be carried out after completely cooled by the power unit;
• 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 the heated engine, which in turn is the most common cause of serious breakdowns;
• All fuel remnants in the internal combustion engine should be completely drained before long breaks in operation of braids for grass; It should be borne in mind that the gasoline-oil mixture quickly decays into the so-called heavy fractions that inevitably clogging the carburetor;
• After removing the fuel, it is necessary to start the engine and let it work on xx until he himself stalls; Similarly, the remnants of the mixture will be eliminated from the internal combustion engine in full.

Particular attention must be paid to the preparation of the tool for long.term seasonal storage. This should be done to minimize the risks of problems with the launch of the engine. Competent preparation includes the following manipulations:

• completely disassemble the trimmer for the grass;
• Rinse and clean all the elements to which there is access;
• examine the parts of the lawn mower in order to identify defects (mechanical damage detected in this case should be eliminated);
• pour motor oil into the gearbox;
• carry out high.quality cleaning from clogging of an air filter element;
• Having appropriate knowledge and practical skills, you can perform partial disassembly of the power plant with subsequent purge and lubrication of moving elements;
• pour the collected gasoline braid with a pre.oiled rag.

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

• extract a candle;
• translate with the starter the piston to the upper dead point (VMT);
• pour a small volume of motor oil into the cylinder;
• Shine the crankshaft several times.

Regardless of the cost and brand of equipment, you should clearly comply with 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 technology can be easily found on many specialized sites and forums.

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

Next, watch the video on how to determine and eliminate the reason why the gasoline trimmer is not started for grass.

Proper care for the chainsaw

There are no unnecessary phrases in the operating instructions, everything that is proposed is aimed at uninterrupted operation of the gasoline pump. Cleaning all parts after each cycle of work facilitates the removal of unexplored residues and dirt. Clean only chilled nodes. This method contributes to the quality of the air cooling of the engine and the gearbox.

For refueling, you must use fuel with recommended oil in the instructions. If the fuel mixture remains in the fuel tank, the oil will swim and, when starting, land on the damper, worsening its adjustment. The mixture may besiege and clog fuel in the carburetor.

When saving the equipment for the winter, inspect, lubricate the gearbox and the piston system, wrap the entire saw in a lubricated rag and store it in a dry place.

This is impossible, dangerous for the instrument and health of the mower, use a metal cable instead of fishing line. It cuts more efficiently, but the load on the gear and the engine increases. A worn piece of wire flies at the speed of a bullet during disconnection. Effective mowing can lead to the rapid wear of the piston group of the engine. For greater efficiency of the mowing, it is proposed to use the profile of the “Asterisk” line.

While leaving the personal plot, sometimes people have to face the fact that their lawn mower is not started. There are several reasons for the refusal of this tool.

The lawn mower will not start. the reasons

Incorrect storage, a long break in extreme, untimely maintenance and other factors lead to the fact that the lawn mower may stop starting.

Diagnostics of the reasons should be started with checking the main nodes. fuel tank, candles and candle canal, air and fuel filters, saopan, graduation channel. Most often, problems are associated with one of these nodes, and their thorough inspection will help to decide why the lawn mower will not start.

If you use low-quality fuel (below AI-92), this can lead to a breakdown of the cylinder-piston system, the repair of which will result in about a third of the cost

In addition, it is important to observe the correct ratio of gasoline and oil specified in the operating guide to your specific model

The operation of the engine can also prevent fuel filter pollution. If this problem is detected, you need to replace the filter. Air filter also does not hurt to check also. When contaminating it, it is necessary to dismantle it, rinse in water with detergents, dry, grease in oil and put in place. Spark plugs that do not show signs of life must be replaced with new.

Sometimes the lawn mower starts up normally, but then stalls. This is mainly due to incorrect tuning the carburetor or its reservation. Determine that the reason is precisely in this, you can by vibration that are noticeable during operation. You need to configure the fuel supply adjustment, following the instrumentation instructions.

The lawn mower is poorly started on hot

When the lawn mower worked properly, and after a short break does not want to start again, you need to press the gas trigger and sharply pull the starter cord several times in a row, until the engine starts and only then release the gas trigger.

The lawn mower is not started on a cold

At the factory, cold motorcycles are pressed for gas, on the contrary, is not recommended. It is necessary to tilt the lawn mower so that the air filter is at the top and click on the leak button 5-6 times, then install the function of switching the functions to the Start position and pull over the cord several times before the engine factory. After a few seconds of operation, braids for the grass, the start system can be turned off.

What to do if the lawn mower does not start ? In this article we will consider the main reasons for this breakdown.

Most often, the lawn mower refuses to start because the fuel fills the candle. This can happen due to the fact that worn nozzles serve too much fuel in the combustion chamber, and its excess flies a candle, which is why it cannot generate a spark. If the candle is always wet, then this may indicate the wear of the gaskets, which is why the flowing oil prevents the formation of a spark. If the candle is dry, and the lawn mower still does not start, then, first you should replace the candle itself.

Another common reason-a 4-step lawn mower refuses to start “on hot”. Here you can recommend a simple test: by clicking on the trigger, twitch the launch cord several times. If after that the engine has not started, then your tool needs a more detailed diagnosis with subsequent specialized repair.

Carburetor adjustment and configuration

The maximum and minimum engine speeds, even idle is regulated by the carburetor. The stable operation of the lawn mower depends on the amount of fuel mixture and air. The lawn mower is not started with disturbed adjustment of the carburetor. The procedure for setting up the device for supplying fuel at low speeds (L), high speeds (H) and idle (T) is regulated by the same vints:

• The chainsaw should work for at least 10 minutes, since the adjustment is carried out in hot.
• The screw n is flooded smoothly to maximum speed, then turning on ¼, counterclockwise, reducing the speed of rotation of the engine shaft.
• The idle stroke is regulated by the screw T, ensuring that the braid for the grass does not rotate.
• The screw l is regulated, first opening the throttle as much as possible, and then smoothly reducing the speed to stable minimum.

After adjustment, a proper carburetor with cleaned filters should ensure the operation of the engine. In the event of a malfunction of the carburetor, after its repair, it will again need to configure the supply system before starting the lawn mower.

Rare breakdowns that prevent the operation of the lawn mower can be:

The most important malfunction, the elimination of which is associated with the replacement of the engine may be the failure of the piston group of the engine. The cost of repair will cost about 70% of the cost of the product. To figure out the reasons why the lawn mower is not starting up will help

The muffler of his clogging and the inability to start a benzotrimer

What else can be the reason that it is impossible to start a benzotrimer engine? Even before resorting to more cardinal actions, you should check the serviceability of the muffler or exhaust channel. This does not apply to new trimmers that have practically no special development. If the trimmer has been to the trimmer, and the tool has not been subjected to diagnostic measures, then the muffler is checked.

If the lawn muffler is clogged, then the exhaust gases have nowhere to go out, and therefore it is impossible to get the engine. In an instant, the exhaust channel cannot be clogged, therefore, the day before such signs should have been manifested:

• An increase in the sound of the motor, which is associated with overcoming high resistance with exhaust gases to release them
• Black smoke from a muffler is a dozen that settles on the walls of the exhaust system
• Unstable engine operation
• The motor stalls on its own when working at idle

Exclude or confirm this factor by inspecting the exhaust system. If the anti.icing mesh has significant clogging, then the reason for the impossibility of starting the engine is undoubtedly in the exhaust channel. The mesh must be cleaned, only this must be done carefully, since the black carcass is a very dangerous carcinogen that can provoke serious diseases of the human respiratory system. To clean the anti.icing mesh and muffler walls of the trimmer for grass, special tools should be used, and work using protective equipment.

A trimmer does not start for the grass for cold reasons

To begin with, we will analyze the situation when it is impossible to start the engine of the lawn mower to a cold. What does this mean? Surely Kosari came across a situation where a trimmer for grass starts on hot just perfectly, but you just have to make a short break, as the problem arises. This problem with the start of the engine after it cools. What could be the reason? Of course, no one excluded all the above factors, but if the situation is constantly found, then there is no need to check them. If a hot lawn mower starts well, and problems arise on the cold, then you should look for the reasons inside the CPH (cylinder-piston group).

To identify a malfunction, you will need to use a compressometer. We screw the compressometer into the hole instead of a candle, and after that we drive the starter handle. Measure the pressure inside the cylinder. compression. The amount of compression should be at the level of about 8-12 atmospheres. After the tool has warmed up (it is enough to work for 15-20 minutes), you should repeat the verification procedure. If the compression on the hot engine is below 8 atmospheres, then the CPH fault is appropriate. This means that the rings, the piston and the walls of the cylinder are worn out.

You can fix the situation by replacing CPG. When replacing it, it is important to take into account such a recommendation as abundant smearing of parts with motor oil inside the cylinder. This is necessary so that in the first minutes of starting a new cylinder with the piston, no formation of.

With a decrease in engine compression, fuel consumption increases, and the productivity of the tool falls. You can work with such a tool, however, with each subsequent hour of work, wear increases. One day, the lawn mower will not be completely launched even with warming up.

It is interesting! You can warm up the engine of the lawn mower with low compression by pulling the starter handle. When warming up, the metal is expanded, thereby the compression increases.

How to avoid most problems?

The work of this seasonal equipment is very affected by its proper storage. over, this applies not only to a long “rest” in the winter, but also of short intervals of inaction. To protect yourself and the technique from problems, you need to adhere to a few simple recommendations.

• Before sending on a well.deserved rest, a tank trimmer for grass is freed from fuel remnants. To remove the entire mixture, the lawn mower is launched and allowed to work until the engine is stalled.
• The first operation after “winter hibernation”. pouring a small amount of oil into the candle hole. Before that, the piston is moved to the extreme position. Such a lubricant will facilitate the launch and prevent premature wear of the details.

Before starting working with a motorcycle, they must check the candle and all the main equipment components.

Reasons why the trimmer for grass does not start is quite a lot. But most of them can be detected and fixed independently. The main thing is the correct diagnosis, attentiveness and sequence of actions. And about how you can cope with problems, the master from the next will tell in detail

Common causes of breakdowns

First of all, it is worthwhile to verify the simplest things: the presence and quality of fuel, the correct order of action.

Use only those fuels and lubricants that the manufacturer recommends. Gasoline with too high octane number is sometimes no less harmful than the 80th. The instruction has not been preserved? Universal can be called AI.95 with a car gas station with a good reputation.

Pour only suitable engine oil. In the vast majority of gasoline trimmers, the engine is 2-stroke, so ordinary car oil cannot be used. For a 4-stroke engine, the oil is poured separately from the fuel. over, it is not worth pouring “working out”. used, used oil.

Remember, the repair of the piston group will cost 30. 70% of the cost of the new motorcycle. Savings on the quality of combustible materials is unlikely to cover these expenses

Exactly observe the proportions of mixing gasoline and engine oil, do not lie “by eye”. For most motos, a ratio of 1:25 is recommended, that is, 40 ml of oil per liter of gasoline.

Do not cook a lot of mixtures at once: ideally it needs to be developed in 1 day and store equipment with a dry tank. The maximum shelf life of the finished mixture is 2 weeks, so more than 2 liters at a time it makes sense to mix only to utilities who cut the city lawns.

If you have not used a scythe for a long time, and there is gasoline in it, it is better to pour it out. The mixture has already been divided into fractions and lost its properties, even the most thorough mixing will not save it.

After making sure that the gas tank is in order, try to get a braid. For this you need:

• Switch fuel into the carburetor with a grain button 5-6 times.
• Close the air damper.
• Turn on the ignition on the handle.
• Pull the starter’s cord 1-7 times, until the launch.
• In 5.10 seconds disconnect the start system.

After downtime, if you can’t start the engine in the usual order, try to open the throttle and press the gas trigger. Without releasing the trigger, pull the starter cord.

A fully working trimmer for grass is started 1-2 times, even if the cord is calmly pulled, and not pull it as much as possible

It is also recommended to start a motor with a clamped gas handle if it has not yet cooled after the previous working cycle.

If the engine has not started on 5-7 jerks, it is worth looking for a breakdown.

Option. a problem in the ignition system

The first thing that suspicious falls is. the candle does not give out a spark, and therefore the fuel mixture does not ignite. Most often the problem is in the candle itself.

For verification, unscrew the spark plug from the cylinder, having previously disconnected the wire from it.

The thin layer of brown soot indicates the normal operation of the engine, red or pink soil. an abundance of fuel additives, change the gas station. If the element is covered with black or white scale, the engine worked incorrectly.

Wet candle indicates overflow, excessive pumping of fuel with a primer. In this case, the candle needs to be dried, but not to get. Pour excess gasoline from the cylinder, turning the motorcycle.

When cleaning, pay the greatest attention to that part of the upper electrode that is aimed at central contact, but do not zeal too much

Contacts of the dried candle should be cleaned of soot with the help of a suprafil, sandpaper or ladies’ file. The gap between them should be 0.7. 1 mm. this is the thickness of the standard coin. If necessary, bent the upper electrode.

Before assembly, it is worth checking the performance of the candle. Connect it to the power (put on the cap), attach the body to the cylinder or any metal part of the engine, turn on the ignition, pull the starter. At the end, between the electrodes, with each jerk, a bright, powerful spark should slip through.

It is very important to observe safety precautions. There should not be a drop of gasoline on the neck of the candle opening and the body of the motorcycle!

If after drying, cleaning and setting a sparking gap, buy a new candle. It happens that the spark does not appear on the new candle. In this case, check the quality of the contacts, try to replace the armored vehicle. this is inexpensive and simply.

If there is no spark with a new wire, you need to buy a new ignition coil. It happens that the cable is not disconnected from the coil, they are sold only in the collection. It is somewhat more difficult to replace it on your own, because you need to accurately set a gap of 0.25. 0.4 mm to the stemstone flywheel.

The normal gap corresponds to the thickness of the plastic bottle (cut a piece of measurement from it) or 4-5 layers of painting tape

Install a coil with a spacer, try on. Twist the starter: it must touch the spacers, but completely turn. Remove paper tape or plastic and finally collect the knot.

It happens that when checking, the candle gives out a small but stable spark, but the launch does not occur. After you tighten the candle into the cylinder, in a closed space, a weak spark may disappear. In such a situation, it is also worth replacing the coil: the new one will give out a more powerful impulse.

Option. you need to replace the filters

If there is a spark, but the braid for the grass is not started, the problem is most likely in the fuel supply. The easiest way to check the air and fuel filter. with this and start.

Testing their condition is quite simple: remove the filter elements and try to start the motor. If it turned out, you need replacement or at least cleaning.

The fuel filter can clog so much that its body will not be visible. Naturally, attempts to clean in this case are useless

Other tool malfunctions

If all the problems described above are checked and eliminated, and the trimmer for the grass still does not start, probably problems with the engine itself. It may reduce compression due to the destruction of crankshaft oil seals or damage to the piston group.

This more often happens with trimmers that are used very actively or for a long time: for example, in utilities. To diagnose, use a compressometer.

The oil seal protruding from the crankcase is subject to replacement. it has already hardened, has lost its elasticity and cannot fully fulfill its function

In most cases, such a repair should be entrusted to the workshop, if only because in almost all trimmers for access to the oil seals and the cylinder, you need to unscrew the nuts with a thread fixer. You can do this either with an electroger.controlle, or warming them well.

The seals are located on both sides of the crankshaft: under the starter and on the drive, and it is better to change them with a couple. Having reached the place of installation, evaluate the condition of the eye: they should sit tight, without backlash and not to bulge, not to be cracked. Oil Sunses around also indicate the need to replace the seals.

When reverse assembly, be sure to use thread fixers wherever they were. this is a security issue.

To easily pull out the seal, screw into it 2 self.tapping screws from the opposite sides. Pull the screws in turn with the help of pliers.

Restoration of the piston group requires a specialized tool. If you are not a car mechanic for a hundred, trust the restoration of a trimmer motor for the grass to a specialist.

When opening the cylinder, all surfaces are checked for chips, bullying, scratches. To determine if the piston rings are worn out, shake the connecting rod. The slightest backlash of the piston indicates the need to replace the rings.

Where is the saapun on the trimmer of different tool manufacturers

Knowing what is a benzocosa or a trimmer’s saapun, you need to deal with the place of its location. Based on what the check valve is intended for, we can conclude that it is located directly in the design of the gasoline tank. On trimmers of different manufacturers, the check valve is in different places. The most popular location of the device is on the gas tank cover. However, the part can be located not only on the lid, but in the design of the gas tank. It all depends on the manufacturer of the tool. Trimmers for grass and lawn mowers of production of Stihl and Husqvarna have a saepun, which is located on the gas tank cover. The photo below shows what the soundtrack looks like.

Less commonly, the check valve is in the wall of the gas tank. This location can be found on outdated models of gasosos and chainsaws, as shown in the photo below.

Understanding the principle of work and the appointment of a sapun, it will not be difficult to find it on your own on your tool.

It is interesting! The location of the cabin on the gas tank cover is made specifically so that when it clogs or malfunctions, it was easy to replace.

How to clean the check valve and restore the tools of the tool

To begin with, let’s figure out how to find out that the soundtress is faulty and needs to be cleaned or replaced. This can be done in three ways.

• The first method provides for inspection of the condition of the hole on the gas tank cover. If the hole is clogged with dirt, then the valve definitely needs to be cleaned.
• The second method is if the lawn mower does not start or the engine stalls after short operation. These are indirect signs that the carburetor cannot pump fuel into the system due to the current pressure inside the tank.
• The third way is to disconnect the fuel hose from the carburetor, and then see. If the fuel flows with a strong stream, then the equalizer is working and does not need to be repaired. If the fuel does not flow or flows with a weak stream, then this indicates a malfunction of the equalization valve. Fuel does not proceed due to the pressure created inside.

To make sure that the problem is hidden in the saapun is quite simple. for this, try to unscrew the lid. If you do this with difficulty, and when turning the hatch, the sound of air is heard, then it is definitely worthwhile to clean the bacon.

You can clean the check valve in the following ways:

• Use a needle and compressor. A needle is needed in order to remove dirt from the hole in the tank cover. Clusted air from the compressor must be blown out from the reverse side so that the remains of the dirt fly out of the hole. This method is simple, but it is not always suitable
• Disassemble the bacon and examine with subsequent cleaning or replacement of the device. The offset of the cabin is not sold, therefore, in case of damage to the filter element or valve itself (usually it is presented in the form of a rubber seal), you will need to buy a new gas tank cover for its tool model

Below is an instruction on how to disassemble the saapun and clean it with your own hands:

• The first thing you need to make sure that the soundtrack is in the tank cover. Next, consider the case when the check valve is located in the design of the cover
• Remove the latch from the lid, which serves to prevent Luke’s loss during the refueling of the tool
• We proceed to extract an equalizer of pressure from the inside of the lid. To do this, you need to lift the device, and extract with the rubber seal
• Eliminated parts from the cover are a rubber gasket and a filter saopan
• Next, it is necessary to remove the filter from the rubber valve, and clean and purge
• If the rubber valve has no signs of damage, then it is enough to blow and clean it with the filter, and then build the device

The repair procedure has been completed on this, and it remains to verify the performance of the lawn mower saop in action.

Summing up, it should be noted that this small detail is often the reason that it is impossible to start a chainsaw. Even complete cleaning of the carburetor will not help to eliminate this problem. Often inexperienced mowers turn to service centers for the repair of the tool, not realizing that the reason is hidden in this small in size of the part, which plays a very large role in the operation of the gas instrumentation engine.