Trimmer air filter in oil causes. How not to get confused if your lawn mower won’t start

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

One reason for this could be a lack of spark. This usually happens when fuel floods the spark plug. In addition, you need to check the spark plugs for serviceability, as this can also lead to a lack of spark.

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

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

This layer appears from oil that has entered the combustion chamber. In such a situation, you have two options: either clean the spark plug properly, or buy a new one.

Sometimes it happens that the spark plugs are clean, but the problem may be in its insulation, which is often covered with black dry soot.

This may be due to a weak spark, too low spark plug temperature, poor fuel quality, dirty air filter or prolonged idling.

The solution here is the same - clean the spark plug or replace it with a new one. Moreover, the spark plug should be replaced even if the contacts are sufficiently worn out.

If there is no spark at the trimmer, professionals at the service station will tell you how to solve the problem.

Sometimes, the problem may be with the magneto. The magneto may become unusable due to the fact that you could pull the starter cord at a time when the ignition was turned off and the spark plug was not grounded to ground.

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

In addition, the problem may lie in the ignition unit. This option can be considered if the spark plug and wire do not have any faults.

In such a situation, it is necessary to replace the ignition unit. It can be found attached with two screws to the engine cylinder.

To gain free access to the unit, it is necessary to remove the enclosing casing.

To correct the current situation, the entire assembly will have to be replaced, since, as practice has shown, replacing individual parts gives insufficient results.

If there is no spark on the trimmer, there is only one way to fix it - replace it.

Moreover, sometimes the problem should be looked for in the ignition coil. A lack of spark can result from a coil failure or a fault in the circuit.

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

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

In this case, you have only one option for further action - replacing the capacitor.

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

You can also watch a video about starting a lawn mower

Recently, a gasoline trimmer has acquired the status of one of the main tools in the arsenal of summer residents. And this is not surprising, because a motorized scythe allows you to quickly put your garden plot in order. However, sometimes it happens that the trimmer is even cold. In such situations, you have to independently determine the cause of the malfunction. Let's find out what to do if the trimmer won't start. The reasons that most often lead to such troubles will be discussed below.

Checking the fuel mixture

Let's say your trimmer won't start. In this case, the first thing you need to do is check whether there is enough fuel in the tank, and also evaluate the quality of the fuel mixture. It is necessary to refuel a motorized unit exclusively with high-quality gasoline. It is recommended to use fuel of a grade not lower than AI-95. Refilling the trimmer with fuel of unknown origin, purchased not at a gas station, is fraught with frequent malfunctions of the tool. This may cause damage to the cylinder-piston system. Repairs in this case often exceed the cost of the device itself.

Why won't my petrol trimmer start? This can also be caused by improper preparation of the fuel mixture, which consists of oil and gasoline. The proportions in which these components are combined are indicated by the manufacturers in the trimmer's instruction manual. It is highly not recommended to prepare the fuel mixture in large volumes, that is, for the future. After all, with long-term conservation, a loss of the defining properties of the substance occurs. Therefore, if the trimmer does not start, you should drain the old fuel and use a freshly prepared fuel mixture.

Preventing Breakage

The sudden appearance of gasoline in the filter after visiting a gas station indicates dirty fuel. You should stop visiting unverified stations. It is also not recommended to buy fuel while replenishing the storage tank, as the flow from the fuel truck pipe lifts all the debris from the bottom of the tank.

When performing adjustment work, you should mark the positions of the mixture quality and quantity screws. To do this, you need to tighten the bolt completely, counting the revolutions. In case of subsequent unsuccessful setup, knowing the preset value, it will be much easier to return to the original state.

Driving should be as careful as possible. Any drop of the scooter may cause damage to the fuel system. Also, rust that comes off due to dynamic load can fix the locking needle, preventing it from taking the required position.

Whatever the reason for the appearance of gasoline in the filter, you should not delay troubleshooting. Operating the engine in such conditions leads to excessive wear of all parts, which increases the need for major repairs. A quick response to the first symptoms of malfunction of the fuel system will save the owner’s wallet from unnecessary waste.

If you have any questions, leave them in the comments below the article. We or our visitors will be happy to answer them

Diagnostics of the candle channel

What to do if the fuel mixture used is in perfect order, but the reasons for the failure of the mechanism may still lie in excessive moisture in the spark plug channel. To diagnose and fix the problem, you must do the following:

1. Unscrew the spark plug. Wipe it thoroughly and then dry it.
2. Drain excess fuel in the chamber through the appropriate spark plug hole.
3. Clean the old spark plug if there is carbon deposits on its surface. Using a regular ladies' nail file or a needle file will allow you to cope with the task.
4. When installing the element in place, set a gap of 1 mm. To check the parameter, just place any coin in the gap.
5. Reassemble the functional block.
6. Try to start the trimmer.

It is recommended to dry the spark plug channel for at least half an hour. However, in no case should you resort to calcining its elements. After all, heating the spark plug can lead to its final damage. What to do if the functional unit was serviced in accordance with the above recommendations, but the trimmer does not start, is there a spark? In this case, it is worth treating the threaded connection with gasoline. The latter does not need to be heavily soaked in fuel. It should be only slightly moistened. Such actions should be taken to ensure ignition. After all, no matter how strong a spark the candle gives, in a completely dry chamber there will simply be nothing to ignite.

Even if in this case the trimmer does not start, it is worth assessing the quality of the contact between the high-voltage wire and the spark plug. If there is no spark (even if there is a reliable connection between these elements), most likely the problem is caused by a breakdown of the ignition unit. In this situation, you will have to turn to the services of specialists who will reinstall the unit.

Tips for choosing

According to current statistics, it is gasoline models of mowers that are in greatest demand. This is largely due to their mobility and functionality. However, when choosing a specific piece of equipment, it is necessary to take into account a number of other parameters. In such situations, it would be useful to compare brush cutters with other types of trimmers.

Electrical devices are connected to a household network with a voltage of 220 V. Such machines do not pollute the air due to the absence of exhaust gases. No less important points will be the minimum noise level and relatively low weight. At the same time, the treated area is significantly limited by the length of the carriers used.

Cordless models are the least common grass trimmers available today. The electric motor of such mowers is powered not from the mains, but from the battery, which ensures maximum mobility. However, the operating time of the equipment is limited by the battery charge and averages 35-45 minutes. Another important point is the relatively high cost of battery models.

When choosing a specific model of a gasoline trimmer, you need to take into account its technical characteristics. Thus, low-power devices are equipped with reels of fishing line

On more resourceful and powerful models, knives and cutters can be used as cutting elements.

Sources:

https://hitech-online.ru/tehnika-dlya-sada/trimmer/ne-nabiraet-oboroty.html https://kartoska.ru/trimmer-stil-ne-razvivaet-oboroty/

Checking filters

Another common reason why the trimmer will not start is if there is a clog in the filter area. To confirm your guess, it is enough to dismantle the indicated block and try to start the unit without it. If the trimmer engine starts, most likely you will have to replace the air filter or at least thoroughly blow out the old one. If there is heavy contamination on the surface of the filter element, it is necessary to use a new mesh. When resorting to such actions, you should not leave the suction pipe completely without a filter. After all, haste in this case can lead to the need to repair the entire piston group of the unit’s engine.

The membrane has leaked and is leaking fuel.

The reasons that caused the appearance of holes in the membrane and, as a result, the appearance of fuel in the air filter may be:

• natural wear and tear of the membrane and its physical aging;
• mechanical damage caused by unprofessional repairs;
• Road accident or extreme driving.

A symptom of membrane damage is deterioration of vacuum in the intake manifold and air filter. There is a gradual deterioration in the technical characteristics of the car. It may take more than one month before the iron friend finally stalls.

To determine whether fuel is leaking through the membrane, it is necessary to disassemble the carburetor. Diagnostics is performed by visual inspection.

To repair, you will need to replace the membrane with a new one. Before replacing, you should bleed the carburetor to prevent debris from getting into the jets or under the shut-off needle.

How to prevent sudden breakdowns during operation of the trimmer?

To ensure that the unit is always in functional condition, you should follow a few simple rules:

1. Conduct timely, regular technical inspection of the main mechanical components of the device.
2. Refill the trimmer exclusively with fresh fuel, the quality and origin of which is beyond doubt.
3. After each use of the tool, check whether oxides and carbon deposits have formed on the surface of the ignition system elements.
4. Avoid heavy load on the trimmer during work.

In order for the unit to remain in working condition, it is necessary to properly prepare it for storage during the winter. First of all, you should completely disassemble the tool, and then rinse and clean the components. It is also important to inspect the functional units for damage, if necessary, eliminating deformations of parts, all kinds of distortions, and tears in materials.

When storing the trimmer, it is worth filling the gearbox with a sufficient amount of oil. Then you need to clean the air filter, partially disassemble, blow out and wash the engine of the unit. After drying all the mechanisms, you should lubricate the moving elements. To treat the piston system with oils, you must first remove the spark plug. Then you need to move the piston to the extreme position, then pour a small amount of oil into the spark plug hole and scroll the crankshaft. If you plan to store the gasoline trimmer outside of the house during the off-season, it is recommended to tightly wrap the engine of the unit with an oily rag. This will avoid the development of corrosion on the surface of important components of the mechanism.

Idle settings are off

Often, manufacturers of scooters, motorcycles and other inexpensive equipment recommend that owners independently adjust the carburetor by adjusting it with the idle speed screw.

As a result of the screw being fully tightened, the carburetor ejects fuel and it flows into the air filter.

Adjusting the carburetor will completely eliminate the problem.

Lack of air causes operation on a rich mixture, which leads to unstable engine speed. This malfunction can also be diagnosed by the condition of the spark plugs.

How to understand that the spark plug on a lawn mower is flooded

Reasons why a candle on a lawn mower floods

– there are several, and any operator needs to know how to determine this? But the sign is single and simple: the saw mechanism does not start. The first thing that should come to the operator’s mind after the launch does not take place is that the spark plug is flooded. This is logical, since a wet spark plug cannot create a spark, that is, “ignite” the mechanism and it simply does not start.

Why are the spark plugs on my lawn mower flooded? As we have already said - from an illiterate launch. That is, if its correct “cold” sequence is not followed, then the unit will not work. In practice it will look like this:

• at the very first start, the fuel mixture is injected for the first time by the starter and the engine “grabs” it;
• an inexperienced operator does not notice this and continues to pull the starter, thereby flooding the part with an abundance of gasoline;
• It is necessary to immediately switch the engine “to hot” at the slightest injection.

And if these illiterate attempts are made several times in a row, the tip of the candle may fail. To know if everything is fine and there is a spark, you need to unscrew it and insert it into the tip. After this, the element must be placed on the block and the starting cord pulled. If a spark is created, then everything is fine with the electrics. The contact between the spark plug tip and the high-voltage wire is also important.

Any brushcutter will not work with an old worn-out part. So, if you know that the spark plug was changed a long time ago, the mechanism does not start, then it is either flooded, or carbon deposits do not allow creating a full-fledged spark to start the device. You can always order spare parts for chainsaws, as well as for trimmers, which are often similar, in the KosiKosa petrol tool store.

The spark plug is flooded and the lawn mower won’t start, how to fix it!

If the lawn mower does not start and you already guess that the reason lies in a flooded spark plug, it is logical that you need to remove excess fuel, clean all the parts involved in this process, blow out the spark plug and give everything time to cool. Then repeat the procedure, but without errors. It doesn’t matter so much whether your braid is Shtil or Husqvarna – the cleaning steps need to be performed the same. So, what to do in this situation:

1. You need to turn the trimmer over and run the starter to release excess fuel.
2. We unscrew and remove the spark plug, blow it out, clearing it of fuel, and leave it to dry for up to half an hour.
3. Just screw the dry part back in and try to start the mechanism.
4. It is necessary to start it immediately “hot”, since fuel injection was sufficient already in the previous attempt.
5. We remind you about adjusting the contact between the spark plug tip and the wire.

Here are simple steps to troubleshoot when your spark plug is flooding. If the problem has already overtaken you, and you don’t know what to do, you don’t have to go to the workshop right away, just read our article carefully and for visual perception, watch practical videos. But you need to buy spark plugs for chainsaws, as well as for brush cutters, in advance so that in such unforeseen situations your plans for the work done will not be affected. After all, a spark plug is the main component of ignition, and, accordingly, the start of operation of the entire mechanism of any gas-powered tool, so brief information on its proper operation will be useful for both a novice and an experienced user.

While caring for their garden plots, summer residents periodically encounter the problem 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 at the dacha needs to know the structure and operating principle of its individual parts.

Since a gasoline trimmer is a complex device, you must carefully study the operating instructions before starting work. Very often they simply ignore her, or get to know her superficially. As a result, when the tool stalls or refuses to start, the question arises: “Why won’t the lawn mower start?” A long seasonal break in work, improper storage and untimely maintenance of the trimmer will cause a lot of trouble for the summer resident to eliminate the causes.

Gasoline trimmer (motor mower) carburetor repair does not work does not develop speed. loss of power

In this case, the lawn mower will stall at idle. The petrol mower does not develop speed, the reason | funnydog.TV. Misadjustment or incorrect adjustment of the carburetor can lead to dilemmas with the power system.

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

Incorrect adjustment of the lawn mower can be corrected by simply adjusting it in accordance with the requirements indicated in the instruction manual.

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

To find out, try using the scythe while loosening the gas cap.

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

Moreover, the lawn mower may stall due to the disgusting flow of fuel into the carburetor

Why then does the device start, you ask?

The reason for this is that at first the fuel gradually flows into the carburetor and there is enough of it to operate at increased power.

But then it runs out and at high speeds the engine begins to stall.

As for the carburetor, the problem here may also be that its body is very overtightened.

The reason why the lawn mower stalls at high speeds on gas may also be air leaks.

We are talking about the likely presence of a place through which air can pass during the heating process of the motor.

Besides everything else, don't forget to check the fuel pickup hose. The trimmer does not develop speed. One of the reasons. The problem may be that it holds poorly or is generally cracked.

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

10 best electric trimmers Characteristics in the rating Many owners of private houses and summer cottages carefully look after their garden plots. When active grass growth begins, the need for special equipment arises. The modern market offers a choice of lawn mowers, gas trimmers, and electric trimmers. The latter compare favorably with…

Gasoline trimmers help clean up a suburban area. If electric mowers are suitable only for “cosmetic” mowing of lawns, then gas mowers are used for all-encompassing. Choosing a gasoline trimmer for your dacha. Review of petrol trimmers. The best design contributes to the highest performance of the tool, the cutting width is...

What to do if the gas trimmer does not pick up speed?

If you have ever purchased a trimmer that works with gasoline, then you probably had to deal with the problem of turning on the trimmer, as well as with the problem that the gas trimmer does not gain momentum.

That is why this article was created.

So, what should you do if the trimmer , which has been working for you for several years, suddenly simply stops gaining momentum, and the engine simply stalls? In this case, you and I should consider a number of problems associated with the engine stopping.

The engine may stall under various circumstances. Sometimes the cause of incorrect operation of a trimmer powered by gasoline is a clogged air filter.

The filter is one of the most important reasons why a gasoline trimmer may stop working.

Very often various debris gets into it, dust particles get there, which also clog the filter, so it needs to be cleaned and washed every month, and maybe more often, it all depends on how much power the gasoline trimmer , as well as how much often you use this device.

Where to start diagnosing a lawn mower

If the lawn mower does not start or stalls immediately 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 the main problems, which can be eliminated after a thorough inspection.

Checking the fuel mixture

Before starting the gasoline scythe engine, check the availability and quality of the fuel mixture. Don’t save money, don’t be greedy, and don’t be “clever” in this matter. Repairing or replacing the piston group will cost you too much (sometimes up to 70% of the cost of a new tool). The oil-fuel mixture must be prepared strictly according to the instructions. Calculate its quantity based on real needs. The excess gasoline remaining after work loses its quality over time.

We diagnose the spark plug and spark plug channel

If the quality of the fuel mixture is not in doubt, and the lawn mower stalls when starting, then the cause may be a flooded spark plug. Here, a regular spark plug wrench (surely every motorist has one) and a spare spark plug are suitable for repairs.

• We unscrew the candle and wipe it;
• Dry it thoroughly (do not heat 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 nail file;
• We set the gap with a distance of 1 mm (you can check it with any coin);
• We return everything to its place and try to start the trimmer.

You need to dry the canal for at least 30–40 minutes. Otherwise, there is a risk of re-filling a new spark plug.

If the spark plug 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 moist. No matter how wonderful a spark a candle produces, there is simply nothing to light up in a dry chamber.

If the trimmer engine still does not start, a reason such as lack of spark due to poor contact between the spark plugs and the high-voltage wire should be excluded. If the connection is good, but there is still no spark, most likely your ignition unit has failed. Here you won’t be able to do without a specialist, since the part is not repaired, but sold as a single unit.

Diagnostics of lawn mower filters

Another reason why a gas scythe stalls may be the air filter. To eliminate this, 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 out and thoroughly clean the old one.

A gasoline trimmer may not start due to contamination of the fuel filter. This is the next stage of 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 pipe completely without a filter; this is prohibited by any operating instructions. Haste can result in repair of the engine piston group.

Breather and exhaust channel

Often, “delicate” branded models of lawn mowers do not start and stall due to contamination of the 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, preventing the supply of fuel. The problem can be resolved by cleaning the breather. You can use a regular needle for cleaning.

The normal operation of scythes with internal combustion engines may be disrupted due to dirt getting into the exhaust channel or clogging of the muffler mesh. This problem occurs on older generation models. The issue can be resolved by traditional cleaning and removal of the anti-spark mesh.

Incorrect operation of the starting enrichment

If gasoline enters the air filter only when the engine is started, you should pay attention to the starter enrichment solenoid valve. Diagnosis is made in two ways:

1. The valve is powered directly from the battery;
2. Starting the engine when the power supply to the starting enrichment is turned off.

In the first case, diagnostics are performed similarly with a vacuum valve. In the second case, the start will be on a lean mixture, so if fuel is pouring into the filter, then the reason does not lie in the solenoid valve and the search goes further.

More complex reasons for lawn mower failure

If the step-by-step troubleshooting algorithm does not produce results, 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 unstable operation of the tool. There are three main problems here:

• Clogged channels or jets. All this is cleaned with special washes or blown with a powerful jet of compressed air from a compressor. Do not use needles or wire, as the bores may be damaged;
• Worn carburetor gasket. The solution is to replace the failed gasket;
• Violation of tightness. To check this indicator, you can use a regular household tonometer, replacing the pressure gauge with a suitable one. Keep an eye on the readings: if they do not change, everything is fine, but if the pressure starts to drop, it means that some part of the carburetor is faulty. You'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 on the piston group. If chips, scratches or burrs are found on the piston or cylinder, they should be replaced. Piston rings must be checked. A slight luffing of the piston when the connecting rod swings indicates that it is time to change the rings. This procedure is best left to the service center specialists.

Gasoline trimmer does not gain momentum: reasons and features of repair

To cut grass on a small lawn, it is not necessary to purchase an expensive and bulky lawn mower; it can easily be replaced by a gasoline/electric trimmer . The design of these machines is quite simple, they are easy to use and easy to maintain. But sometimes problems still happen. One of them - when the trimmer does not develop the maximum number of revolutions - will be discussed in this article.

The brush cutter does not gain momentum, the cause of the malfunction and its elimination

Rules for operating and storing lawn mowers

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

• During operation, carefully monitor the cooling system, carefully and promptly clean the channels in the housing, as well as the starter fins;
• if necessary, use solvents, kerosene and other detergents for cleaning;
• Do not clean the tool “hot” - let it cool down;
• strictly follow the operating instructions, otherwise you may overheat the engine;
• if you do not plan to use the lawn mower in the next month, you need to drain the fuel mixture from it, because over time it breaks down into heavy fractions that 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, take the following steps:

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

Remember, careful adherence to the rules will allow you to forget that it is difficult to start a lawn mower for several seasons.

Reasons for low trimmer speed

If users complain about a trimmer that does not gain speed, this means that at idle it works fine, but when you press the gas it does not develop the necessary power. This can happen as a result of the device being idle for a long time without activity. These problems are typical for gasoline devices, including Husqvarna 128r, STIHL FS 38 and Hitachi of various modifications.

When working with a trimmer, you need to constantly monitor its behavior - a drop in speed and unusual noises indicate problems with the unit. Sometimes you give it gas, but the trimmer floats. In such cases, work should immediately be suspended, the mechanism should be allowed to cool, and the search for possible problems should begin. They can be of a different nature, both technologically and external factors associated with the conditions and characteristics of the operation of the device.