The spark was gone to the champion chainship. Review of the definition of a malfunction using…

Weak spark on the trimmer what to do. What to do if a gasoline lawn mower does not start. Strategy for eliminating problems

Many trimmers owners are faced with a problem when the device simply does not start.

One of the reasons for this may be the lack of a spark. This usually happens when the fuel floods the light of the ignition. In addition, you need to check the candles for serviceability, as this can also lead to a lack of spark.

The first sign of a faulty candle is the presence of a short circuit between its contacts, and in short. no spark on the trimmer.

In addition, the candle is considered faulty if it is covered with a black wet layer.

Such a layer appears from the oil combustion chamber. In such a situation, you have two exits: either clean the candle as it should, or buy a new.

Sometimes it happens that the candles are clean, but at the same time, the problem can be in its isolation, which is often covered with a black dry soot.

The reason for this may be a weak spark, excessively low spark plug, low fuel quality, dirty air filter or prolonged work at idle.

Here the output is the same. clean the candle or replace it with a new. over, the candle should be replaced if the contacts are strongly worn out.

In the case when there is no spark on the trimmer, how to solve the problem you will be told by professionals for a hundred.

Sometimes, the problem can be with magneto. Magneto may become unusable due to the fact that you could pull the starter cord at the moment when the ignition was turned off, and the candle was not grounded for the mass.

Such actions can easily disable magneto. In such a situation, the only way out is to buy a new magneto.

In addition, the problem may be the ignition node. This option can be considered if the candle and wire do not have any malfunctions.

In such a situation, it is necessary to engage in the replacement of the ignition unit. It can be found attached using two screws to the engine cylinder.

spark, malfunction, using

To obtain free access to the node, it is necessary to remove the enclosing casing.

To correct the current situation, you will have to replace the entire node, because, as practice has shown, replacing individual parts gives insufficient result.

If there is no spark on the trimmer, it can only be fixed in one way. replace it.

over, sometimes the problem should be sought in the ignition coil. The absence of a spark can lead to the failure of the coil or a malfunction in the chain.

To check the flow of current into the primary winding of the coil, you can use the light bulb, which must be turned on instead of the coil.

Then you need to carefully examine the contacts of the interrupter. If a strong spark occurs at the time of opening between the contacts, you can be sure that the capacitor is broken.

In this case, you have only one option of further actions. replacing the capacitor.

The gap between the ignition coil and the flywheel: what distance

ICE engines are installed not only on cars or motorcycles. They are widely used in various tools, for example, such as chainsaw or trimmer for grass. In case of their malfunction, poor start, it is often enough to install the correct gap between the flywheel and the ignition coil.

About the chainsaw and its inoperability

Chainsaw. installation in itself is not so complicated. But having the smallest initial knowledge is extremely important to find and eliminate any defect.

Modern electronics were so progressed that it also revolutioned in the world of tools. The saws of our days are light and powerful at the same time, equipped with electronic ignition systems of the ESZ.

Not so long ago, the ignition systems drank cam. This carried a lot of shortcomings: severity, complexity, high cost and much more. And the most important drawback of the archaic ignition system is the difficulty of the plant. Some of the systems of models of saws could not work out a spark sufficient for the outbreak at the speed of rotation of the crankshaft.

Modern systems are almost reliable. The models saw light and strong, the coil is made more professionally and serves its term almost without fail. However, there are also problems, but in most cases they can be fixed on their own.

Consider the main types of chainsaw malfunctions associated with the flywheel and ignition system.

As a rule, the most common ailment of modern chainsaws, implies the lack of a supply spark. The same directly depends on the shift of the lumen (clearance) between Babina and the flywheel.

Common malfunctions of installations are always connected with ICE. Problems arise in the system of ignition of fuel, the fuel flow module, in the internal elements of the engine itself.

As for the other nodes of the chainsaw, the malfunctions there, as a rule, due to the failures of the brake mechanism, poor lubrication, etc.D.

If the difficulties of starting are associated with the engine, then the symptoms are most often observed:

Ignition module

The inoperability of SZ chainsaws is the most common reason due to which the engine engine does not start. In most cases, it is recommended to start searching for a problem from here.

The ignition module of the chainsaw

  • First of all, thoroughly check the spark plug, gently throwing the armored wire from the head and twisting the candle from the nest using a special key;
  • The second is a check of the sparking using the starter twitching with a cap of the armor pipeline on a candle;
  • Checking the gap is the main theme of our article (more below).

So, the malfunction of the spark plug will clearly be evidenced by its sputum. A wet spark device for ignition of the fuel-air mixture suggests that the fuel is an excess of fuel, the carburetor is incorrectly configured or there are malfunctions in SZ.

The candle is checked only after drying. T.e., It must be carefully cleaned with a napkin, drain the insides of the internal combustion engine, clog the feed, and then start a couple of times a starter so that the excess of the combustible mixture comes out.

Then the spark device is put in place, and everything is checked again.

In general, the spark device can tell a lot about the entire ignition system. If a black fog is observed on the candle, this indicates violations in the communications of the gasoline mixture. Here, either the ratio of gasoline and oil was violated, or the carburetor is required to reconfigure. In some cases, this happens due to poor.quality oil.

A dirty candle is cleaned of a black carbon fiber with a needle or any other sharp object. Then, the electrode is cleaned with sandpaper (zero), until a metallic shine appears. The spark device is returned to the place, everything is checked again.

Next stage: checking sparking. The skirt of the spark device is brought to the cylinder, the starter starts. If a bluish spark slips at a distance of 2-3 mm, everything is fine. The sparking distance of 0.5-1 mm is already considered as a malfunction. There may not be sparks at all, and this is also a big problem. Perhaps this is the case of a cliff of the wire.

And so we approached the topic of our article. The chainsaw may not be launched due to a violation of the gap between the ignition and the Magneto flywheel. This very gap should be within 0.2 mm. It is checked very simply: a special gasket is placed between the flywheel and Babina. If it comes normally, not too free and tight, then the gap is normal.

The flywheel himself drank is round, and checking the gap with an ordinary probe is impossible. It would be more qualified to put a gap according to a special show, but it is not always possible to purchase. Yes, and not everyone can afford to buy a template that is not cheap.

Gap between Magneto and the flywheel

However, in return for the foreign template, you can use a cut strip from a plastic container per 1-2 liters from under the juice.

How to check the magneto chainsaw

Magneto, Babina, module. this is the ignition coil. She may absolutely not have to do with the malfunctions of the tool, and the reason to hide only in the gap or in another. But in some cases, it is she who becomes a factor of violation.

To check the Babin itself, you should also, as in the above case, use the exclusion of components from the chain. Or in other words:

spark, malfunction, using
  • evaluate the state of the Babin case visually for the presence of cracks and other visible defects;
  • check the purity of current.compromises of various nodes and elements;
  • diagnose the isolation and serviceability of the armored wiring, the reliability of fixing the fasteners, the absence of rust, etc.P;
  • evaluate visually the condition of the cap of the spark device;
  • check of the serviceability of the candle;
  • Diagnosis of the circuit switch, which is especially relevant for Chinese.made chainsaws.

Again, as in the above case, certain points are excluded from this chain, thereby there is the reason for the problem.

Proper care for the chainsaw

There are no unnecessary phrases in the operating instructions, everything that is proposed is aimed at the trouble.free operation of the lawn mower. Cleaning all parts after each cycle of work contributes to the light removal of not hardened residues and dirt. You need to clean only cooled nodes. This technique contributes to the quality of the air cooling of the engine and the gearbox.

For refueling, it is necessary to use fuel with oil recommended in the instructions. If you leave the combustible mixture in the fuel tank, the oil will float and dies on the damper when starting, worsening its adjustment. The mixture can give a sediment and score fuel supply in the carburetor.

When preserving equipment for the winter, make an audit, grease the gearbox and the piston system, wrap the entire saw in the oiled rags and store in a dry place.

It is impossible, dangerous for the instrument and health of the mowing, use a metal cable instead of fishing line. It cuts more efficiently, but the load on the gearbox and the engine increases. A demolished piece of wire when separating flies at the speed of a bullet. Effective mowing can lead to a speedy wear of the piston group of the engine. Reasons for a stop if a gasoline trimmer for grass that this device is not started. For greater efficiency of the mowing, it is proposed to use the profile of the “Star” fishing line.

On gasoline trimmers, both two.stroke internal combustion engines (ICE) and four.stroke. But the ignition system in them is no different from each other, so the repair and adjustment of this fuel ignition system will be the same for different types of internal combustion engine.

The ignition system of a two-stroke ICE consists of 2 elements: flywheel and coils (magneto). The figure below shows how they look.

There is a impeller on the flywheel, which works like a engine cooling fan. There are also permanent magnets on one side of the flywheel, the figure is shown by the arrow.

When the flywheel rotates in the coil, an electric current is produced, which serves for a spark on the spark plug. The spark appears at the moment when the magnets are directly under the magneto.

Why is the ignition adjustment

In some cases, when the engine does not start, the ignition adjustment will be required. Of course, first you need to check the serviceability of a candle and a high.voltage cable with a cap.

It is necessary to adjust the ignition on a two.stroke engine in order to ensure timely ignition of fuel in the engine combustion chamber. Below is a scheme from which you can understand the principle of operation of the internal combustion engine.

The spark in the candle should appear at the time of compression of the fuel with a piston, when it does not reach the upper dead point (VMT) at least a little. Когда поршень проходит ВМТ, происходит возгорание топливной смеси, в результате чего поршень под действием энергии взрыва уходит вниз.

Therefore, if for some reason (mainly this is due to the shift of the flywheel to the shaft relative to its original position), the fuel fire occurs earlier than the piston passes, then it returns back, and the crankshaft scrolls in the opposite direction. Such a movement can damage the starter knot, cut off the launch cord, etc.D. In this case, an early ignition of fuel occurs.

There may also be a later ignition on the trimmer: the piston after compression of the fuel, which does not ignite, goes down, and at that moment a spark appears. In this case, the engine will either not start or significantly lose power and will be poorly gaining momentum.

But such problems with early or late ignition on two.stroke ICE are quite rare, since the flywheel with magnets is already established in the correct position, which is perfectly synchronized with the movement of the piston. In addition, the flywheel is fixed on the shaft using a key and nut. Therefore, the wrong installation of the part is excluded.

Basically, the ignition adjustment is to set the correct clearance between Magneto and the flywheel.

Replacing parts of the gaspile ignition system

Some early electronic ignition systems consisted of two parts. launch and coil module. Today they are united in one part. On saws with double ignition systems, the trigger module can be replaced without replacing the coil. This is easy work, as a trigger is usually installed with a pair of screws. When replacing this part, just remove the old module and install the new one in its place. Just make sure the new module has a good foundation. If you notice any corrosion on installation connections or if the screws are not tightly tightened, this may be your ignition problem. The modules should be well connected.

Replacing the coil is a little more difficult. The ignition coil is mounted in the fan housing next to the flywheel. The module in contact with the magnetic field of the magneto Makhovik, produces energy for the spark and contains a reference to the ignition ahead. When replacing the coil, remove the old coil and inspect it. Look for damage from contact with the flywheel. The contact between the coil and the flywheel can be caused by the weakening of the screws or wear of the main crankshaft bearing.

Seriously Insane Stunts That People Sadly Didn’t Survive

Even if you do not see any damage, check the crankshaft bearing. If you feel the movement and backlash in this bearing, replace the bearing. Also inspect the flywheel. If everything looks good, install a new coil. The base of the coil must be installed about 1. one.5 mm above the magnets on the flywheel. If you do not have petals, try using a business card or a piece of a pack of cigarettes as a spacer. Turn the flywheel so that the magnets stand opposite the coil. With a gasket on the spot, tighten the fasteners of the coil screws remove the gasket.

Features of modern electronic ignition systems

If there is no spark, you need to replace the candle, and if the spark is weak and unstable, it is better to clean it with fine sandpaper or a file. But, in 90% of cases, the reason for the non.use of the lawn mower lies in another. Most often, problems appear due to clogging of the carburetor, and then in this article we will tell you how to clean it yourself.

We will demonstrate the process of cleaning the carburetor on the example of the gasoline lawn mower Craftsman with the Briggsstratton engine. Most of the lawn mower and their motors are very similar to each other, so this material will be applicable in most cases. So, start work!

spark, malfunction, using

Attention! In the process, gasoline leaks are possible. You can not work indoors. Before starting work, make sure that there are no open sources of fire nearby. Do not smoke during work!

First of all, using a flat screwdriver, it is necessary to remove the air filter casing from the engine. Up the screws, remove the plastic casing and take out the air filter. Pay attention to its hauling. The poor condition of the filter can also cause unstable engine operation, therefore, if necessary, replace the filter or at least clean it using a vacuum cleaner.

Trammer for grass, both electric and with an internal combustion engine (ICE), is an indispensable tool in the summer and autumn period for owners of cottages and private houses. With its help, weeds, small shrubs are easily removed and the lawn is trimmed. But, like any technique, trimmers for grass fail at the most inopportune moment. To eliminate the malfunctions with your own hands, the user of this technique first needs to determine the reason for their appearance.

In the lawn mower and an electric trimmer for grass, if you do not consider breakdowns associated with the bar and the mowing head, the malfunctions mainly happen In the area of ​​the engine.

Damage of gasoline trimmers

Typical breakdowns of a gasoline trimmer for grass, which are most often faced with the owners of this unit, are as follows:

  • engine breakdown;
  • problems with the carburetor;
  • problems with the supply of fuel;
  • muffler malfunction;
  • gearal breakdown;
  • The starter broke;
  • Air filter problems;
  • Broken a buckshot on a gas tank.

Malfunctions of electric trimmers

Since the device of an electric coser is much easier than a motirmer, then there are few reasons for its failure.

It should be noted that the elimination of some of them is best entrusted to the specialist.

Basically, the trimmer for the grass ceases to work normally in the following cases:

  • Electric cable malfunction;
  • The control button is faulty;
  • burned engine winding;
  • Contact joints break on the engine.

How to properly set the ignition on a trimmer

How to properly set the ignition on a trimmer

Spare parts for chainsaws and trimmers with mail delivery throughout the country with cash on delivery. SDEK, PEK, business strips on prepayment

  • Spare parts for chainsaws
  • Cylinder-piston groups of chainsaws
  • Carburetors of the chainsaw
  • Starters for chainsaws
  • The ignition coils of the chainsaws
  • Circus brakes of a chainsaw
  • Clock tensioners
  • Clutch of chainsaws
  • Oil pumps
  • The crankshafts of the chainsaw
  • Flaim chainsaws
  • The bearings of the chainsaw
  • Basils and gaskets of chainsaws
  • Springs of a chainsaw
  • The remaining nodes and parts of the chainsaw
  • Traffic jams (lids) tanks of chainsaws
  • Mufflers of the chainsaw
  • Spare parts for trimmers
  • Trimmeres cylinder-piston groups
  • Carburetors for trimmers (benzos)
  • Starters for trimmers (benzos)
  • Trimmeres ignition coils (benzos)
  • Trimmeres Clutch (Basos)
  • TRAMMER FLASS (BAMS)
  • Trimmer gearboxes (benzos)
  • Trimmeres crankshafts (benzos)
  • Elements of the bar and handle
  • Basmers and gaskets
  • Trimmeres silencers (gasosocos)

Diagnosis of malfunctions

All the reasons why the lawn mower is not started can be systematized by the specifics of the operation of individual units. The service center is systematized:

  • Motor malfunction (piston wear, bearing malfunction, crankcase crack);
  • Fuel consistency supply malfunction. clogged pores of an air filter or a malfunction of a carburetor;
  • the ignition system does not work;
  • A malfunction of a mechanical disposition. a leak of hoses, broken wires under a braid, rupture of the tubes.

The user first needs to check if there is a fuel in the tank. Starting in agreement with annotation, putting the saw on the side. Gasoline trimmer for grass; starts without problems. May not start. Set the air damper to the position “Closed”, pump up fuel, turn on the ignition and produce 3-4 sharp jerks by the starter. If the engine has earned, open the air damper. The lawn mower is not started. we repeat the operations with a slightly open air damper.

The lawn mower cannot work for a long time. Gearbox and engine will overheat. Mowing less than 15 = 20 minutes, taking a five.minute break. In hot noon, the operating time is reduced by half. When mowing weeds, sedgers, the working hours are required to reduce.

If you are unsuccessful, we begin to find the reason for the refusal:

  • check the quality of fuel;
  • make sure the operability of the candle and the cleanliness of the candle canal;
  • check the cleanliness of the air filter;
  • Make sure that the fuel filter is not clogged;
  • Check the cleanliness of the bastard;
  • Clean the exhaust channel.

complex reasons will be detected in the diagnosis of a malfunction, leading to the overhaul of the carburetor. Such reasons include clogging of the internal channels of the carburetor, wear on it gaskets and violation of the tightness of internal halls with a vacuum loss. The causes of gasoline breakdowns and why the gasoline trimmer for grass is not that the internal combustion engine does not start. DIY lawn mowing repair, if it does not start, will require patience.

Elimination of the reasons why the lawn mower is not started

The fuel mixture should be prepared with accurate observance of gasoline and oil proportions. In this case, you cannot use another brand of fuel. To exclude dirt, gasoline should stand in a glass or metal dish 2 days. Cannot be used for storage of fuel plastic dishes. Distribute the oil with a medical syringe without a needle. Use only a freshly prepared mixture, without leaving an unexplored fuel in a tank. If the engine is capricious, the lawn mower stalls, when you press gas, it may be guilty of fuel.

Many trimmers’ owners are faced with inconsistency when the device simply does not start.

spark, malfunction, using

One of the circumstances of this may be the lack of a spark. This usually happens when the fuel floods the light of the ignition. In addition, you need to check the candles for serviceability, as this can also lead to a lack of spark.

The first sign of a faulty candle is the presence of a short circuit between its contacts, and in short. there is no spark on the trimmer.

In addition, the candle is considered faulty if it is covered with a black wet layer.

Such a layer appears from the oil combustion chamber. In such a situation, you have two exits: either clean the candle as it should, or buy a new.

When you need adjustment

It is necessary to adjust the ignition system so that the fuel is ignited at the right time in the combustion chamber.

Important! Когда поршень сжимает горючее и практически достигает мертвой точки сверху, в свече возникает искра. Further, when it passes the maximum upper point, the fuel is lit up, as a result of the explosion, energy forms and directs the piston down.

If the flywheel is shifted to the shaft relative to its original position, the fuel is ignited faster than the piston overcomes the upper dead point. As a result of this, the piston moves back, and the crankshaft rotates in the opposite direction. You can determine the early fire of the fuel by a broken launch cord, a broken starter node or other breakdowns.

Champion Generator Repair, Most Common Engine Problems

Sometimes ignition is late. The piston compresses the irreparable fuel, and then goes down, and only then the spark forms. As a result, the engine either does not work or its power is reduced, and the speed is gaining much slower.

Typically, a flywheel with magnets is installed in an ideal position, as if coordinated with the operation of the piston, and in order to avoid displacement, it is carefully fixed. This allows us to say that an incorrect installation of a part is impossible. But if the shift of the flywheel is a confirmed fact, then it is a failure or accident. Thus, the installation of the moment of the ignition is not required, since problems with early or late ignition of fuel happen very rarely.

Important! It is very simple to regulate the ignition system. There is no need to calculate the ignition angle angle. The maximum that you need to do is to properly set the gap between the flywheel and the reel.

Cleaning the respiratory tract

Often the engine of the brand trimmers stops as a result of clogging of the respite. The main task of this component. equalize the pressure in the fuel tank. In the case of contamination of the device, a vacuum is formed here, which significantly complicates the supply of fuel. Cut the jumper with an ordinary sewing needle.

On gasoline trimmers, both two.stroke internal combustion engines (ICE) and four.stroke. But the ignition system in them is no different from each other, so the repair and adjustment of this fuel ignition system will be the same for different types of internal combustion engine.

The ignition system of a two-stroke ICE consists of 2 elements: flywheel and coils (magneto). The figure below shows how they look.

There is a impeller on the flywheel, which works like a engine cooling fan. There are also permanent magnets on one side of the flywheel, the figure is shown by the arrow.

When the flywheel rotates in the coil, an electric current is produced, which serves for a spark on the spark plug. The spark appears at the moment when the magnets are directly under the magneto.

Why is the ignition adjustment

In some cases, when the engine does not start, the ignition adjustment will be required. Of course, first you need to check the serviceability of a candle and a high.voltage cable with a cap.

It is necessary to adjust the ignition on a two.stroke engine in order to ensure timely ignition of fuel in the engine combustion chamber. Below is a scheme from which you can understand the principle of operation of the internal combustion engine.

The spark in the candle should appear at the time of compression of the fuel with a piston, when it does not reach the upper dead point (VMT) at least a little. Когда поршень проходит ВМТ, происходит возгорание топливной смеси, в результате чего поршень под действием энергии взрыва уходит вниз.

Therefore, if for some reason (mainly this is due to the shift of the flywheel to the shaft relative to its original position), the fuel fire occurs earlier than the piston passes, then it returns back, and the crankshaft scrolls in the opposite direction. Such a movement can damage the starter knot, cut off the launch cord, etc.D. In this case, Early fuel ignition.

It can also be Later ignition On the trimmer: the piston after compression of the fuel, which does not ignite, goes down, and at that moment a spark appears. In this case, the engine will either not start or significantly lose power and will be poorly gaining momentum.

But such problems with early or late ignition on two.stroke ICE are quite rare, since the flywheel with magnets is already established in the correct position, which is perfectly synchronized with the movement of the piston. In addition, the flywheel is fixed on the shaft using a key and nut. Therefore, the wrong installation of the part is excluded.

Basically, the ignition adjustment is to set the correct clearance between Magneto and the flywheel.

Why do you need a good spark. A little physics of the process.

The quality of the spark determines its ability to set fire to a properly formed air-fuel mixture in working conditions. The initial set.on the mixture is carried out in the spark or as it is also called a breakdown cord from an electric current pulse developed by the ignition coil. In this place, almost instant heating of the molecules of gasoline and oxygen, from which they enter into a chemical reaction. Then it spreads to the entire volume of the mixture at a normal speed of 30-40m/s, forming the burning front of a certain form. The whole process of the existence of sparks and ignition occurs behind 1-2ms. L South deviations of the parameters of the spark leads to improper work.

Often, checking the ignition system for the presence of a spark is carried out as follows: twist the candle, put it on the case, and, pulling the starter’s handle, rotate the flywheel. And look at her. If there is no spark at all, then everything is clear here. But often it is observed. It is important to understand that when such a check, the conditions for the formation of current in the circuit differ from the workers, namely: firstly, the pressure inside the engine is 7-10 times higher than atmospheric, secondly, the temperature inside the engine is about 1000 degrees, thirdly, Since the candle hole is open, the flywheel rotates faster and more often. The situation may arise: the spark is visible, and the engine does not work correctly. An error in the diagnosis. checks were held in non.working conditions.

Engine instability when heated.

It often happens that with cold start everything works fine, but after heating the engine stops working or starts to work unstable. This is the most difficult situation for diagnosis. Any detail can be faulty. With regard to the ignition, such implicit breakdowns are insidious in that the malfunction of the electric system is erroneously attributed to breakdowns of the carburetor, cylinder-piston group, and t.D. In such cases, they begin to “wind up” the carburetor, mistakenly re.enrich the mixture, change it and CPG. That is, the error in the diagnosis entails errors in the settings and extra costs.

The temperature dependence of the operability of the coil is due to its elemental base. It uses inductance coils, semiconductor elements and capacitors. How their work depends on temperature can be found in the school textbook of physics. It is important to remember that good ignition in working modes operates regularly. If there are malfunctions when heated, then the part is easier to replace.

The method of verification with unstable operation of the coil from heating is obvious: since everything works fine on the cold engine, then if you heat (for example, with a hairdryer) only the coil, most likely there will be deviations. If this happens, then the module should be replaced.

The following checks can be supplemented with similar tests when the ignition coil is heated.

Do not sharply cool the heated coil. It may burst the fill.

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. Gasoline trimmer for grass. an amazingly useful thing, a trimmer for grass does not start after. 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. Figure out the reasons why the lawn mower is not started. will help

Proper care for the chainsaw

There are no unnecessary phrases in the operating instructions, everything that is proposed is aimed at the trouble.free operation of the lawn mower. Cleaning all parts after each cycle of work contributes to the light removal of not hardened residues and dirt. You need to clean only cooled nodes. This technique contributes to the quality of the air cooling of the engine and the gearbox.

For refueling, it is necessary to use fuel with oil recommended in the instructions. If you leave the combustible mixture in the fuel tank, the oil will float and dies on the damper when starting, worsening its adjustment. The mixture can give a sediment and score fuel supply in the carburetor.

When preserving equipment for the winter, make an audit, grease the gearbox and the piston system, wrap the entire saw in the oiled rags and store in a dry place.

It is impossible, dangerous for the instrument and health of the mowing, use a metal cable instead of fishing line. It cuts more efficiently, but the load on the gearbox and the engine increases. A demolished piece of wire when separating flies at the speed of a bullet. Effective mowing can lead to a speedy wear of the piston group of the engine. Reasons for a stop if a gasoline trimmer for grass that this device is not started. For greater efficiency of the mowing, it is proposed to use the profile of the “Star” fishing line.

When caring for a personal plot, summer residents periodically face the fact that the lawn mower is not started. There are many reasons for the refusal of the tool. For the correct diagnosis of the problem, the owner of the useful in the country’s dive must know the device and the principle of operation of its individual parts.

Since the gasoline trimmer for grass refers to complex devices, before starting work, it is necessary to carefully study the operating instructions. Very often it is simply ignored, or they get acquainted with it superficially. As a result, when the tool stalls or refuses to start, the question arises. “why the lawn mower is not started?»A long seasonal break in work, improper storage and untimely maintenance of a trimmer for grass, will deliver a lot of trouble to the summer resident, to eliminate the reasons.

No spark on the trimmer |

Many trimmers owners are faced with a problem when the device simply does not start. One of the reasons for this may be the lack of a spark. This usually happens when the fuel floods the light of the ignition. In addition, you need to check the candles for serviceability, as this can also lead to a lack of spark.

The first sign of a faulty candle is the presence of a short circuit between its contacts, and in short. no spark on the trimmer. In addition, the candle is considered faulty if it is covered with a black wet layer.

Such a layer appears from the oil combustion chamber. In such a situation, you have two exits: either clean the candle as it should, or buy a new. Sometimes it happens that the candles are clean, but at the same time, the problem can be in its isolation, which is often covered with a black dry soot. The reason for this may be a weak spark, excessively low spark plug, low fuel quality, dirty air filter or prolonged work at idle. Here the output is the same. clean the candle or replace it with a new. over, the candle should be replaced if the contacts are strongly worn out.

In the case when there is no spark on the trimmer, how to solve the problem you will be told by professionals for a hundred. Sometimes, the problem can be with magneto. Magneto may become unusable due to the fact that you could pull the starter cord at the moment when the ignition was turned off, and the candle was not grounded for the mass. Such actions can easily disable magneto. In such a situation, the only way out is to buy a new magneto.

In addition, the problem may be the ignition node. This option can be considered if the candle and wire do not have any malfunctions. In such a situation, it is necessary to engage in the replacement of the ignition unit. It can be found attached using two screws to the engine cylinder. To obtain free access to the node, it is necessary to remove the enclosing casing. To correct the current situation, you will have to replace the entire node, because, as practice has shown, replacing individual parts gives insufficient result. If there is no spark on the trimmer, it can only be fixed in one way. replace it.

over, sometimes the problem should be sought in the ignition coil. The absence of a spark can lead to the failure of the coil or a malfunction in the chain. To check the flow of current into the primary winding of the coil, you can use the light bulb, which must be turned on instead of the coil. Then you need to carefully examine the contacts of the interrupter. If a strong spark occurs at the time of opening between the contacts, you can be sure that the capacitor is broken. In this case, you have only one option of further actions. replacing the capacitor.

These are the main reasons why there may be no spark on the trimmer.

Malfunctions of the ignition coils of chainsaws

Modern electronics revolutionized the world in many things. Even tools such as chain saws were affected by high technologies. Today’s saws are light and powerful. Electronic ignition systems are one of the most significant factors in this evolution. Below are interesting materials about such an important component of the chainsaw as the ignition coil.

Gasopil ignition systems

Not too many years ago, the ignition systems used in professional saws were cam. They were heavy, complex, expensive and prone to all kinds of problems. Especially on rainy days. Even when the saw “had a spark,” it was often difficult to start. Some saws barely produced enough energy to give an outbreak at the speed of rotation of the crankshaft. And the constant pulling of the starter’s handle was the norm.

Today’s systems are small, light, and durable. Compared to early ignition systems, they are almost reliable. The modern coil is professional and almost always serves the entire service life of the chainsaw. While changes in ignition systems were capital, sometimes problems in work may occur. Often these problems are easy to fix for yourself and do not require a trip to the workshop for expensive repairs.

What to pay attention to when it is difficult to launch the engine?

When the ignition problems arose, one of the first points for the inspection is. spark plug. Pay attention to damage to the ceramic insulator or signs of wear on the electrode. If the candle has a removable cap, make sure it will fit tight.

Next, look at the wires leading from the coil, whether there are a cliff or damage to insulation on them. The vibration of the engine can lead wires to friction against each other or another component. During friction suffers, even the strongest isolation.

Other problems arise when the wires pass between the parts of the anti.vibration system of the saw. Constant bends and stretching can ultimately lead to their destruction. Sometimes these cliffs are not obvious because they occur inside the isolation. The cliff is sometimes difficult to find, because the wire may look perfect outwardly.

The spark plug wire, also should be checked. Sometimes the cap of the spark plug can cause problems. A visible sign of the problem is a brown or burnt residue on the external ceramics of the spark plug. This is a sign that the spark walks along the external ceramic winding of the spark plug. At this time, the saw can work, but the work will be unstable and the currents will walk.

In the ignition system, the saws often fail to turn off the shutdown, they can be checked. Disconnect the wires of the switch from the module and check the ignition. Sometimes the switch makes him be constantly “turned off.”If you have a spark after the switch is turned off, replace it and test the saw.

Constantly check the wires, they should not be overwhelmed and not twisted, and the wires should not touch the vibrating parts tightly.

Problems with the modules of chain saw ignition

Ignition modules and coils sometimes tolerate breakdowns. When everything else is checked, suspicions of them. When they fail, one of two, as a rule, occurs. There is no obvious symptom. The only thing you can do is replace the module with a new. Or even better. try to change it with a saw used. If the spark did not appear after replacing the modules, apparently you missed something.

Replacing the module is the only reliable way to check the spark. All kinds of testers, as practice shows, are untrue. The only reliable test. replacement of the coil. Another symptom that indicates a bad electronic module or coil is a spark that becomes weak when the saw becomes hot. If the saw does not start after refueling, most likely the heat of the engine eliminated the spark. A weak ignition coil is sometimes able to give a sufficient spark to start and work a saw until it warms up properly. Когда пила и катушка соответственно нагреются, сопротивление транзистора возрастает и искра становится слабой. Symptoms: the saw starts and work well in the store, for example, but at work the saw dies and does not start, it will not cool. It can be difficult for the store to prove this malfunction.

This is a load imitator used to diagnose a saw engine with ignition systems that have problems associated with heating. This is an adjustable pneumatic brake system, the engine thinks that cutting is performed. Using this tool, we can heat the saw engine to operating temperature for a very short time. Since the load is constant and adjustable, you can easily control the engine for misfires or other operating defects that would be difficult to observe when a tree file.