The lawn mower smokes at the first launch. The wrong gap between the magneto and the ignition coil

The causes of breakdowns of gasoline and electric trimmers

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 engine area.

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.

Why is the gasoline trimmer not starting for the grass

The reasons why the gasoline trimmer for the grass stopped starting is different, therefore, a phased diagnosis of the apparatus is required.

Fuel tank (fuel quality)

Remember that always before starting the unit, a check of the presence and quality of fuel is required. In this case, you should not be greedy and save, as well as “clever” about the amount of oil added. Everything must be done according to the management attached to the apparatus, since when the piston group fails, its replacement will cost about 70% of the total cost of the trimmer for the grass. Pour fuel due to the fact that you will fully conside it when performing work. After a while, the gasoline remaining in the tank loses its properties and can harm the engine. Therefore, do not prepare the mixture for the future and in large quantities. If the lawn mower starts poorly, try to drain the “old” fuel from the tank, and season it with a freshly prepared mixture.

Important! To refuel the device with fuel, the origin of which is unknown, fraught with negative consequences. Gasoline should be of high quality, bought at a gas station, and its brand should be not lower than AI-95.

Candle and candle channel

So, you changed the fuel, but nothing has changed, and the trimmer for the grass still does not start. In this case, it is worth checking the candle channel: whether it throws it with a combustible mixture. Often users transfer the air damper to the “OFF” position when starting, and when the engine started, they do not transfer it to the “ON” position, after which it stalls. Further, an attempt to start the internal combustion engine to again leads to the fact that it floods the candle with gasoline, and the start becomes impossible. To diagnose and eliminate the possible problem in this node, do the following.

  • It is necessary to unscrew the spark plug, wipe it well and dry it. When installing a candle in the ICE cylinder, it should be dry.
  • Draw from the combustion chamber the fuel accumulated there. This is done through the hole from which you twisted the candle.
  • In the presence of soot on the electrodes of the candle, it must be removed either with a thin file or a nail file.
  • Do not forget to put the gap between its electrodes before installing the parts in place. The gap on the candle should be 1 mm. As a probe to check the gap, you can use a coin.
  • Next, collect the block, read the start instructions and try to start the engine again.

If the engine does not start, then you will need to check the spark. For this:

  • unscrew the candle;
  • put on it a cap of a high.voltage wire;
  • Touch its metal part to the cylinder body (to provide contact, you can insert a tubular key) as shown in the figure below;
  • pull the launch cord so that several engine speeds occur.

Normally, with each piston roll between the electrodes, the candle should slip a spark. If there is a spark, then the reason that the internal combustion engine is not launched should be sought in other nodes of the device.

For a better understanding of the process, how to test the candle for the presence of a spark, you can use this video where the check is shown by the example of the Lawn Mushiel “Soyuz”.

If there is no spark, then in the beginning check the cable connecting the candle to the coil. perhaps the reason is in it. You can call it with a tester. In case of detection of the rupture of the chain, a high.voltage wire will require a replacement.

Also the reason that the spark has disappeared is a malfunction of the ignition coil (magneto). The figure below shows what the coil (magneto) looks like from the gasoline trimmer for Patriot grass (Patriot).

To exclude the malfunction, it will be necessary to use a tester to check the Magneto trimmer for the grass, namely, its primary and secondary winding. On the primary winding, the resistance should be in the range from 0.4 to 2.0 Ohms. If the device shows 0. this means that there is a short circuit in the winding, and if infinity is a clear sign of a chain break. The resistance on the secondary winding should be in the range from 6 to 8 kOhm.

On some coils, it can reach the value of 15 kOhm.

Air filter

If your lawn mower does not start well or stalls immediately after starting, you should pay attention to the air filter, since it can be clogged, as a result of which the air does not enter the combustion chamber, and fuel ignition does not occur. To check if the filter is the case, remove it and try to start the engine. If he earned, then the reason was found. The filter needs to be replaced or rinse well and dry before installation. In the case when you find the oil in an air filter, it must be washed with gasoline, squeezed well and dry at least 2 hours before installing in place.

If the unit does not start with an air filter, it is still recommended to check the fuel filter.

Fuel filter

This filter cleans fuel of possible pollution. If it is scored, then gasoline does not enter the cylinder, and, accordingly, the unit does not work or stalls after starting. The fuel filter is located at the end of the fence hose, which is located inside the fuel tank. To get to the filter, it is necessary to extract a cork with tubes emerging from it.

When extracting traffic jams, a fence hose can disconnect and stay in a tank. It is extracted with a tweezer.

Next, remove the old fuel filter from the hose and put on it a new, pre.acquired. You can also clean the fuel filter if you do not have new. The filter must be fixed on the hose using a spring latch.

Install the fence tube on the cork and insert the last into the tank.

The main malfunctions of electric trimmers

The reasons why the electric lawn mower does not start and does not work are divided into two main categories. mechanical and electric.

In the first case, the causes of breakdowns can be:

  • Blocking knives when trying to mow too hard grass or shrub. In this case, the cylinder is freed from stuck grass and scroll through the other way.
  • Blunting or damage to knives. Knives sharpen or replace.
  • Incorrect location of the knives, leading to deterioration of equipment handling, reducing the quality of work. The problem is corrected by regulating the gap.
  • Vibrations and rattling of the device due to weakened bolted joints. Bolter compounds regulate.
  • In models with fishing line, problems with a trimmer reel are possible. A trimmer fishing line may end, break off or get confused.

Electric malfunctions:

  • The reason that the electric gas mobility stalls immediately after starting or during operation, may be a break in the supply cable or the disappearance of power supply in the network.
  • The electric trimmer for the grass is very warm and can smoke. Overheating of the engine and its probable failure can be caused by too long work or overload, which occurs due to blocking the cutting elements with any extraneous objects. Sparking and the appearance of smoke can be triggered by incorrectly selected brushes or their incorrect location.
  • One of the reasons why the electric lawn mower is not starting is the malfunction of the control button.

The most common breakdown of motorcycle

The malfunctions of gasoline devices can also be divided into two main types. engine breakdown and mechanical plan problems.

Problems with a gasoline engine:

  • If the lawn mower does not start, starts poorly or immediately stops, then first of all, the ignition is checked, for which it is necessary to dismantle the candle. If it is dry, then problems in the fuel supply system, if wet, are problems with the carburetor. Candles with black soil replace. Also, the cause of this malfunction may be filter clogging. In the presence of oil in the air filter, it is washed, squeezed and dried.
  • If the gasoline trimmer for the grass smokes, then the cause may be too much oil in the fuel-oil mixture. White or grayish smoke indicates an too intense engine operation and a lack of lubrication, blue. the excess of oil content, thick black. about poor.quality old fuel.
  • The reasons why the lawn mower is warming up is a few. This is gasoline of inadequate quality, inappropriate oil, improper ratio of gasoline and oil, problems with a carburetor, air filter, insufficient lubrication of individual nodes.
  • The gasoline trimmer for grass stalls at large speeds. Causes-etching of air in the combustion chamber, improper adjustment of the carburetor, clogging of the saapon in the fuel tank cover, poor circulation of the fuel-oil mixture due to blockages in fuel pipes.
  • Benzotrimmer does not work at idle. This problem may occur due to improper control of the carburetor or clogging of the air filter.

Mechanical breakdowns. locking knives too hard and long grass, failure of knives, weakening of fasteners.

It is possible to accurately determine the place and causes of a breakdown of an electric or gasoline trimmer for grass and quickly eliminate it only in a specialized service center. Due to the availability of modern diagnostic and repair equipment and great work experience, experts will be able to cope with the problem of any complexity. Masters will not only repair a fairly new tool, but also restore the working characteristics of old models.

If the motor does not start or works incorrectly

The reasons that the motor does not start with a two or four jerks of the manual starter cable can be:

Most often, this is due to the incorrectly executed trimmer for the grass, when the procedure is violated or some important point is not executed, so the launch is quite correctly carried out and the motor will work. If the mower is poorly started after storage, then most likely, old gasoline is exhausted, so it is enough to change it.

If the trimmer for the grass was not served for several seasons, then the poor launch can be due to dirty air or fuel filter, so it is enough to rinse or replace it.

lawn, mower, smokes, first, launch

If all actions are performed correctly, but there is no positive result, contact the workshop or independently diagnose or repair.

Useful videos

Below we bring to your attention several videos about the reasons why the lawn mower is not started, and about the ways to eliminate them.

The reasons why the lawn mower is not started or poorly starts “hot”, and what to do:

Another plot about why the lawn mower stalls or does not start “on hot”:

The lawn mower is poorly started or not starting “to cold”:

The Chinese lawn mower died down or stopped starting up:

The analysis of the situation when there is a spark, and the gasoline trimmer for the grass does not start:

The most common problems

Here are the most common malfunctions:

  • the engine does not start;
  • The motor stalls arbitrarily;
  • The engine does not gain momentum or does not hold them;
  • Immediately after the start of the mowing, the engine speed falls and it stalls or works with interruptions;
  • smokes strongly;
  • It goes badly;
  • does not stop even after the operator released the wheel drive lever;
  • shakes hard;
  • Poorly cut the grass.

The engine does not start

There are quite a lot of reasons why the motor does not start:

  • empty fuel tank;
  • a air filter is clogged;
  • a muffler is clogged;
  • The ignition switch is installed in the wrong position or faulty;
  • The air damper control lever is in the wrong position;
  • faulty candle;
  • broken or clogged carburetor.

Primary inspection

To establish the real cause of this defect, you must first conduct a full external inspection and make sure that the openings of the air filter or muffler are not clogged, there is gasoline in the tank, and the throttle control lever and the ignition switch are in the correct position.

If everything is in order with this, then it is necessary to carry out pre.launch work, including cleaning air or fuel filters, described in detail in the instructions for the operation of the mower, and then try to start again.

After making sure that the motor still does not start, the mowing is placed on the table and proceed to a more detailed search for the reasons.

First, the spark plug is twisted and tightly plug the candle hole with your finger, then smoothly, but quickly and strongly pulled the hand starter cable or pressed on the electric launch button.

The moving piston should create sufficient air pressure so that it pushes the finger and goes outside. If this does not happen, then the motor needs serious repairs, which is difficult to make at home, so it is better to take the mower to a specialized workshop.

After all, the reason that the piston does not move after the starter’s cable or rotating the shaft of an electric starter may be:

  • Damage to the starter, because of which he does not transmit the energy of rotation to the engine shaft;
  • The cut off the flywheel that connects the flywheel and the starter with the engine, and also provides the correct ignition angle.

To eliminate both malfunctions, not only tools, but also skill are needed, so those who do not have the skill of repairing any engines are better not to try to eliminate such problems on their own.

Further check

If the piston moves, then you must first check the fuel supply, for which the candle is thoroughly wiped with a dry clean rag, then screw it into place, and the regulator of the position by the air damper is placed in the “OFF” position, as during the start of the engine.

After that, the fuel is pumped up (if the engine design provides) and twitch the hand starter cable several times or pressed on the electric starter button and hold it for 1-3 minutes.

Then, the lever of the air damper is transferring to the “ON” position and the candle is unscrewed, which is carefully examined.

Wet contacts indicate that gasoline enters the engine and the problem of ignition, and dry contacts say:

In both cases, knowledge and equipment are necessary for proper diagnosis and repair, therefore, it is better to take the device to repair the apparatus to a specialized workshop.

If the fuel comes, then it is necessary to check the external condition of the ignition coil and the high.voltage wire. If they have cracks or poor contact as between the wire and the coil, so at the place of connection of the wire with the candle tip, they must be replaced.

If everything is fine, then you need to check the spark, for which you can use both a deliberately serviceable candle and a bolt suitable in diameter, which is inserted instead of a candle in a high.voltage wire.

The operations described below, if they are performed with errors, can damage the ignition coil, so if you are not sure that you can do everything right, then it’s better not to take risks and entrust such a check to professionals.

The candle is leaned with threads against the ribs of the engine cooling shirt, and the bolt is placed so that it does not come into contact with the mowing case or its engine, and the distance from it to the cooling shirt was 1-2 mm.

lawn, mower, smokes, first, launch

After that, disconnect any wire going to the ignition switch, then pull the lever of the manual starter or press the electric button and see if the spark will appear.

If there is no spark, then the device does not start for one of the reasons:

For the repair of these damage, skills and equipment are needed, so those who do not have them are better to trust professionals. If there is a spark, then the problem is in the spark plug, so after replacing it will work.

The motor stalls arbitrarily

The most frequent reasons why the engine stalls during operation are:

  • Dirty air filter;
  • Dirty fuel filter (only for models with a fuel filter);
  • faulty ignition switch (does not completely open the ignition circuit);
  • damaged insulation of the ignition shutdown wires;
  • faulty air damper drive;
  • the tightness of the ignition coil is broken or its winding is broken.

The primary inspection is performed in the same way as described in the previous section. If everything is fine outwardly, then carefully examine and feel all the wires suitable for the switch that blocks the operation of the ignition system, is possible somewhere damaged and when contacting the naked metal of the case, there is a short circuit that extinguishes the spark.

A gasoline lawn mower is a complex motorized equipment that needs proper timely maintenance and periodic repair.

Now you know what malfunctions can independently eliminate most of the owners of gasoline lawners and how to do it, and in which cases it is better to contact the workshop.

When heated

The lawn mower often stops when heated. In this case, it starts, works “with jerks” and gradually stops. This process occurs when gasoline in a carburetor boils or a damper in it is installed by a rotary rather than a disc. In the latter case, the part is changed.

It is found that the trimmer for the grass is warming if the ignition circuit or the coil is damaged by the damaged grass. To start working normally, the device is replaced by details.

When opening an air damper

It happens that the unit stalls when opening an air damper, working normally at idle. This is due to the air leaks of the system caused by the presence of fuel hose cracks or problems with the oil seals. The carburetor dosing system can also work malfunctioning, while the lawn mower will stop after the opening of the damper.

All possible reasons that the lawn mower stalls, and the methods of eliminating them are contained in the next video

There are many reasons for stopping Motokos, but the most commonly occur in work related to its carburetor. They can arise in any case. The most problematic option is when there is a serious breakdown, and you will need to purchase new parts or change the lawn mower.

So that the trimmer for the grass works normally for a long time, you should strictly comply with the requirements of the operating instructions. It is necessary to refuel the unit suitable for it in the composition with a fuel mixture, the device should work with a moderate load.

Why does a trimmer smoke for grass? Why is the lawn mower smoke?

As a rule, engines on trimmers are two-stroke, so they are refueling with a fuel-oil mixture: if oil for two-stroke engines. then 1 to 50. If the oil is overdoed. there will be smoke if piston rings are erased. there will be smoke if the ignition is later angle. There will be smoke. White smoke. a sign of incomplete combustion of fuel, blue. Smooth with butter. Air filter is also possible. Rinse it and dip it in oil.

If the trimmer for the grass began to smoke, the first thing to do. it is off to turn it off, otherwise it can simply burn.

Now let’s look at the main reasons that can cause this problem:

  • Incomplete combustion. One of its symptoms is dense black smoke. It may occur if you use the old poor.quality fuel or did not completely turn the switch after starting the engine.
  • Grayish or white smoke can be a sign of a more serious problem. The engine works too intensely and the reason is most likely in insufficient lubrication. Let the engine cool and share oils.
  • Spark plug. Perhaps it’s time to replace them or at least clean them.

Why do engines smoke

Power, which drives a two- or four-stroke engine of the lawn mower, comes from explosions in the combustion chamber. Like all combustion reactions, these explosions require oxygen, and when there is not enough air and incomplete combustion, fuel, which does not burn, turns into soot carbon deposits. They are either blown out of the final hole in the form of black smoke, or gather on the terminals of the spark plug, which protrudes into the combustion chamber. An engine that produces a lot of black smoke usually does not work at full power, and, in the end, carbon accumulates enough on the candle to prevent ignition and starting.

If your lawn mower produced black smoke and now does not start, you can usually start it again, cleaning or replacing the spark plug. Remove the spark plug lid, unscrew the candle with the end key and inspect the terminals., If they are covered with thick deposits, remove deposits with sandpaper or file, if you have a horse riding mowel or a mowing with a four.stroke engine, and you see wet oil deposits, you may be worn out by the lingel oil as a lingel oil. You can run the engine by cleaning or replacing the plug, but smoking will continue until you repair the seal.

Restore the air flow

Another reason for the lack of air in the combustion chamber. Dirty air filter. You must regularly clean this, but it’s easy to forget to do it, and when the filter is polluted, it passes the air. The filter is easily available, and the procedure for its removal and cleaning depends on your lawn mower. Many air filters are located on the side of the gas mowing engine and are enclosed in a plastic box held in place with a screw. Some filters are disposable and should be replaced, while others are washed with water with soap. Paper filters can sometimes be cleaned by blowing them with compressed air, and foam filters can be washed again. The muffler can also clog and limit the flow of air leaving the combustion chamber. Remove and clean the soot with a wire brush or replace it. In order to avoid burns, give the mower and muffler completely cool before shooting.

This Lawnmower Was Smoking & Ran Poorly. Here’s Why! #shorts

Small engine carburetors have two or three adjusting screws. one for adjusting the velocity velocity and the other one or two to adjust the air ratio of the air. When the engine produces black smoke, this may be due to the fact that the low-speed screw marked by the letter “l” on most cars is too open. Find adjusting screws that are often under an air filter, and turn a low.speed screw for 1/4. 1/2 revolution clockwise using a screwdriver to create a more liquid fuel mixture when you make this setting, you will probably notice that the engine is better because it burns fuel more efficiently.

NO SPARK ?!!? Testing Mower Engine Coil How To: No Start Diagnosis

Why is my lawn mower smoking?

Why is the lawn mower smoking? Is it dangerous? What are the reasons for this phenomenon? Let’s figure it out. Smoke is an alarming signal. In this article we will find out what can cause this problem. And also lead you through the recovery process for each of the reasons.

The carburetor mixes the air and fuel in an ideal ratio for combustion. If the carburetor does not work properly, this ratio may be wrong.

Too little fuel will damage your engine, too much fuel will create a too rich mixture. Excessive fuel will not fully burn out, which will lead to the accumulation of carbon, which leads to the appearance of black smoke.

You can remove the carburetor, disassemble it, carefully clean and check for damage. If necessary, it should be replaced. Be careful not to damage nozzles during cleaning.

Air filter prevents garbage, such as dirt, dust and grass, in a carburetor and engine. If you do not clean the air filter for too long, it will ultimately block and stop supplying air to the engine.

As we know on the example of a carburetor, a lack of air means too much fuel, which again leads to the appearance of black smoke.

You must check the condition of the air filter at least once a month. The filter should be replaced at least once a year. It is important to use the filter specifically for your lawn mowing model. The wrong size will not filter the garbage properly.

Piston rings form a seal between the piston and the walls of the cylinder. If they wear out or damage, the oil can leak through the rings into the combustion chamber, which will lead to the release of white smoke.

lawn, mower, smokes, first, launch

To avoid this, make sure that the air and fuel filters are clean. If they are dirty or completely absent, there will be dirt in the combustion chamber, which will lead to wear of the piston rings and walls of the cylinder.

Do not neglect oil in a lawn mower. Poor oil or low amount of oil cannot be lubricated correctly, which leads to wear of piston rings and cylinders.

CHOT check the oil to prevent wear or jamming of the engine. Oil should be changed after about 50 hours of use. Old, dirty oil contains particles that air or fuel filters cannot capture, and the further use of this oil will lead to the wear of the engine and its various parts.

Replacing damaged piston rings and cylinders. a difficult repair, since to access them the engine must be disassembled. Regular maintenance is much easier than full repairs!

Regular and preventive maintenance is the best way to ensure the effective operation of your external power equipment and serve you for many years. Follow your equipment and you will not have a question, why is my lawn mower smoking? )))