The lawn mower does not start a spark, eat gasoline. Main reasons

1st November 2022

The lawn mower starts poorly? Adjust Magneto’s gap

If a trimmer for grass or a lawn mower is not started, then any desire to mow grass disappears. Very often, the owners of these tools face difficulties in starting a two.stroke or four.stroke engine after winter, when the tool was not operated for a long time. If this situation has occurred, then do not rush to take the tool for repair. Start finding a malfunction from less to larger, and with a 100% probability you will be able to start a benzotrimer engine. Where to start searching for a malfunction when the lawn mower does not start, we will consider step by step with all the details.

Why is a trimmer not starting for grass (gasoline)?

Because he worked his. Why, this question may be as many answers. Poor fuel is far from an argument. Maybe a person does not know how to use it, so it starts not correctly. The fuel does not come, the candle is pierced, the wires are pierced, it does not turn on, does not know how to use it, the trimmer for the grass burned/broken, but there are still any other reasons can be. There are still such hooks.

The reasons why the gasoline trimmer for grass does not start can be several.

If the trimmer for the grass does not start or immediately stalls after the launch, then the problem may be in the fuel tank (namely as fuel), in the candle and the ultimate channel, in the air or fuel filter, in the saapon or the exhaust channel.

one). Be sure to check for the grass before starting a trimmer for grass, and most importantly and the quality of the fuel mixture.

2). A trimmer for grass may not start or stall with a flooded candle. It will need to be twisted and wiped.

Dry the channel candle for at least 3040 minutes. Otherwise, a new candle can also burst.

3). If a trimmer for grass starts without an air filter, then it is better to change the old filter for a new.

four). A trimmer for grass may not be started if the fuel filter is polluted.

5). Also, a trimmer for grass may be started due.

Also, the reason may be in the flow of dirt into the exhaust channel or clogging the muffle grid.

A gasoline trimmer for grass may stop starting for several reasons at the same time.

Firstly: try to clean the carburetor-its pollution leads to a breakdown of a gas station.

Secondly: vacuum may form in the barrel. If so, try to make a small click in the barrel lid.

Thirdly: roll the correct settings of the trimmer for the grass.

There are several reasons, as a result of which the trimmer for the grass will not start. I will list the main:

Poor fuel. For each model of a trimmer for grass you need gasoline with a specific octane number. Roll up with the operating instructions and make sure that you fill in the required.
flooded candles. At the same time, I advise you to check the candles for performance. Sometimes even new (in the box) candles can be inoperative or defective.
The fuel mixture does not enter the carburetor. Skip it a little.
The ignition coil failed.
The muffler is clogged. You need to free it from the haze. To do this, carefully disassemble and clean (can be burned on a gas burner).

Typically, the trimmer for the grass did not start after winter and we used to carry almost every spring a trimmer for grass to the workshop, where we were repaired. But, once, a knowledgeable person advised us in.the first, never leave gasoline in trimmer for the winter, because old gasoline may be the reason that the trimmer for the grass will not start, and he also said that the trimmer for the grass for the grass is necessary for the carburetor.fuel mixture. After we began to comply with these rules, our problems with the trimmer disappeared.

First of all, you can see the candle. If necessary, replace it, making sure that the candle is not broken and gives a normal spark. The next problem will be hidden in the fuel system. As mentioned above, check the tightness, then check the fuel filter, if necessary, change. Clean the carburetor, watch the effect. It will be necessary to delve into the ignition system, configure. To check the fuel system, you can pour several grams directly into the cylinder through the candles of the candle, screw the candle and try to start. At least a trimmer for the grass should make the sounds of a running engine within 1-2 seconds and a little smoke should fly out of the silencer.

This is interesting: how to quickly light the car correctly?

If you do not start a trimmer for grass at all or immediately stalls after the start of the start, then you first need to look for the reason in the main nodes and units, for this you need to carry out the test in the following sequence, so this sequence: this sequence: this sequence: this sequence:

In these nodes, the whole problem may be consistent.

The lawn mowing engine does not want to start after winter

Often, with the onset of spring, most owners of benzos complain about the inability to launch the motor of this grass.shocked tool. With what it can be connected? So that the trimmer for grass in the spring after winter storage is well started, you must learn to care for it correctly. How to properly store the lawn mower in winter is described in detail at the very end of the material. Now we will figure out why it is impossible to start the tool engine after winter.

One of the main reasons that after winter the lawn mower is not started. stagnation of fuel in a gas tank. If you do not drain the fuel from the tank, and leave the tool to store for a long time, then it will naturally be impossible to start the lawn mower. The properties of a mixture of gasoline with oil fall, so as a fact we get a tool malfunction. Even if the fuel mixture has remained in the trimmer last year, it is recommended to drain it, and pour freshly prepared. After that, start the tool.

Another cause may be a malfunction of the air damper. When closing it manually, the valve itself may not work, so you start the lawn mower with a completely open air damper. In this case, the tool will not start the cold, as there is a large air leak. The video below tells why a trimmer does not start for grass for cold.

In addition to these reasons for the impossibility of starting the gas mowing engine, there are others, which are also important to mention:

Disciplings of the Electrodes of the candle. before starting the trimmer for the grass after winter, you should unscrew the spark plug, inspect it, clean, dry and set the gap
Damage to the high.voltage wire. During the storage of the tool, the high.voltage wire could crack, damage or could gnaw the mice. Make sure the integrity of the armored pipeline if the trimmer for the grass does not start after winter
Oxidation of wire contacts. This usually happens if the tool is stored in a room with high humidity
Check the serviceability of the ignition coil. During the winter, this detail could fail, and cause a difficult to launch the tool

Diagnose the tool, and only after that resort to a more serious repair. cleaning the carburetor.

Why and what to do if a gasoline trimmer for grass does not start

If a benzotrimmer does not start, the breakdown can be caused by several reasons. Most often, the failure occurs:

due to clogging of air or fuel filters;
because of the exhausted old gasoline in the tank;
due to damage to the fuel hoses;
due to damage to the ignition system;
due to a short circuit of the wires responsible for inclusion.

Also, the launch of the primer and the saapon, the clogging of the carburetor and the air damper drive clogged.

The most difficult thing is to repair a benzotrimer with a malfunction of the engine, but such a breakdown is rare

Exhausted gasoline in the tank

Many trimmers left fuel in the tank after using the unit. If the cover is not closed not, gasoline can exhale and absorb moisture from the air. As a result, the combination of the mixture is reduced, and the motor does not start.

It is very simple to fix the situation. you need to remove old fuel from a gasoline trimmer for grass. Do it like this:

Pump up new gasoline primer.
Twist the starter cable many times.
Pump the old fuel through the combustion chamber until the tank is empty.
Dry the candle.

You can also simply remove and disassemble the carburetor to drain the remnants of exhausted gasoline. But it is more difficult to do this, you must have minimal ideas about the device of a trimmer for grass that does not start.

A short circuit of wires

The wires suitable for the engine are responsible for the engine. they are connected by the switch, and as a result, the gasoline trimmer for the grass is launched. Due to poor-quality isolation or permanent vibrations, the cables can be wiped out.

If a short circuit occurs, the engine is not started by pressing the button. You can eliminate the problem according to this scheme:

The wire departing from the start button is removed from the terminal terminal of the ignition system.
Using the tester, check the cable resistance in “Inclusive” and “off” modes.
If there is a malfunction, a working handle of a gasoline trimmer for grass is disassembled.
Cut or solder suitable to the motor, ignition system and wire button.
Extract the remains of cables and set new in their place.
Collect the hilt back.

If the gasoline trimmer for the grass starts again, the repair was successful.

Attention! In good wiring during testing in “inclusive” mode should give resistance striving for infinity.

Flowing the air filter

If the trimmer for the grass has not stalled and does not start, the problem may consist in clogging an air filter. To diagnose a breakdown, you need to extract a candle from the unit case and inspect it. If there is clogging, it will be black.

To eliminate the problem, you need to disassemble the motorcycle and pull out the filter from the body. It is cleaned in accordance with the instructions for a specific trimmer for grass, and then set to place. To prevent the problem, it is recommended to conduct preventive maintenance of equipment from time to time.

Falf in the spark plug

If the benzotrimer does not start, the failure can be caused by a candle breakdown. Diagnosis is carried out as follows:

Twist the element from the cylinder block head.
Carefully examine. if the contacts of the candle will be covered with a malfunction, will be covered with a black coating.
Soak the part in vinegar solution 20% for half an hour to clean.
Sprinkled with soda and washed with water after another 30 minutes.
Dry with compressed air and installed in place.

In some cases, after cleaning, the candle comes into an efficient state, and the gasoline trimmer for the grass starts again. If this does not happen, you need to replace the element with a new.

If a black fog quickly appears on the new candle, the problem may consist in re.enriched fuel

The ignition coil malfunction

If the trimmer for the grass is jerking off and does not start, it is worth checking the ignition coil. Do this as follows:

All wires turn off the block and remove them from the candle.
Measure the resistance of both coils-in the primary it should be 2-3 Ohms, in the secondary 4.5-5.5 ohms.
With a strong deviation of the indicators, the ignition unit is replaced with a new.

You can check the knot in another way. Instead of a candle, the tip of the discharge is inserted into the appropriate wire and the latter is connected to the motor. Then you need to set a gap with a size of 0.5-0.8 mm and twitch the starter cable. The ignition unit requires replacement in the absence of a spark, but if it is, then the malfunction lies in the candle.

Recommendations and preventive measures

It is quite difficult to start a benzotrimer with malfunctions, sometimes repair requires a lot of costs and applies of efforts. Avoid breakdowns allows compliance with prevention rules. In particular, it is recommended:

Timely clean the ribs of the starter and channels on the housing of a gasoline trimmer for the grass;
Before a break in the operation of the unit, drain the remaining fuel from it;
After cleaning the gas tank, start the engine at idle to eliminate the last traces of the mixture;
use only high.quality fuel when operating the unit;
load a gasoline braid in accordance with the instructions;
Before cleaning for storage, disassemble and thoroughly rinse the trimmer for grass with solvents.

It is recommended from time to time to subject the gasoline braid to be careful to identify mechanical defects. Regular preventive cleaning requires air and fuel filters of the system.

Attention! Before cleaning the gasoline trimmer for storage grass, you need to lubricate the piston group with motor oil.

The more intensively the benzotrimmer is used, the more often its individual working nodes clog

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

6 common mistakes with fuel

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Cycle: why the piston may not move inside the cylinder

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

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

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

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

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

A similar reason should also be borne in mind.

Rules for the operation and storage of a lawn mower

In order for the lawn mower to start well and continue to provide it with good storage and operation conditions:

During operation, carefully monitor the cooling system, carefully and in time, clean the channels in the case, as well as the ribs of the starter;
If necessary, use solvents, kerosene and other detergents for cleaning;
Do not clean the “hot” tool. let it cool;
Stactly comply with the requirements of the instructions for the operating mode, otherwise you can overheat the engine;
If you do not plan to use the lawn mower in the next month, the fuel mixture from it needs to be drained, t. to. Over time, it breaks up into heavy fractions, which will definitely clog the channels of the carburetor;
After draining the fuel, let the trimmer work at idle until it stalls, this will help to completely remove the rest of the working mixture.

Before winter storage, take the following steps:

completely disassemble the braid, rinse and clean all the details you can;
Inspect the details for damage, if necessary, eliminate distortions, impulses, bent and any other malfunctions;
Pour a sufficient amount of oil into the gearbox and clean the air filter;
You can partially disassemble the motor, rinse, blow and smear all the moving parts;
In order to lubricate the piston, you need to unscrew the candle, raise the piston with the outlet to the extreme dead point, pour a little oil into the candle hole and scroll the crankshaft a couple of times;
If you store the lawn mower not in the house, wrap the engine with an oiled rag.

To send a comment you need to log in.

Everything is like my Hammerflex MTK 31. He started, began to mow, after pumping a plot of 105 meters, a braid for herbs died out. Attempts to start a nickname did not bring anything, cleared the candle, started. Literally a minute later, the braid for the grass was stalled and no longer wound up, even the starter could not pull, it closes in half, it is impossible to pull the cord.

Check the high.voltage wire and tip on the candle. I have a spit for grass “Patriot” (3 liters.With.) turned out to be a tip. just a piece of paper clip (the wire inserted into the wire). I took VP from the old Volga. everything works amazingly.

The braid for the grass did not start, changed a new candle.There is no spark, what to do?

It is necessary to check if there is a spark when leaning the cradle (cap of candle) to the cylinder. If not, call the high.voltage wire for its integrity. If the wire is intact. see the ignition unit.

After winter I tried to start the braid S K.240, and the starter does not twitch. Last time worked normally. Spit year.

Most likely the carburetor settings were lost

Wife flooded in Hammerflex pure gasoline.The trimmer for the grass works for 5 minutes and stalls Then I told her to urgently merge it and diluted it They did everything as it should, but still stalls after 5 minutes until the clean gasoline for the grass did not flush

LEX mower starts up normally, but for some reason it is quickly warming up and does not start on hot, tell me what the problem is?

“Forester 304”. It doesn’t start in any way, last year it was brought up with a kick from the same time, and then I worked a little and jammed, this year it didn’t start at all, they checked the candle, the candle is dry, the thread is slightly wet, the candles were changed, but the candle is, they changed gasoline. did not help, tell me what to do

Hello! I have such a problem, I started a braid, gave gas, it is strangled, I went clear a carburetor for a compressor, but I decided to buy a new one, put a new one, it no longer starts on any carburetor, the candle fits the spark, but for some reason the air filter in Half gasoline was not there before, and no one touched the carburetor, both new and old. What to do?

I bought a new lawn mower Occurrest 4200. The engine does not start. What to do?On the service were able to run for a minute. Compression 8ATM. What could be the reason?

The braid for the grass does not start the proton MI 2500: it was a little smashed, drowned, then started again, it stalled and did not start anymore. I cleaned the candle from the haze, but it did not help, the candle constantly floods

Another reason for not starting the lawn mower may be a silencer, I, on the advice of his familiar mileage (such a snake Gorynych turned out) and a braid for the grass started!

Do not start a lawn mower. Gasoline is not supplied at all. If you wet the candle, it will hole it once and that’s it. The carburetor was washed in gasoline, blowing. Uselessly.

See if fuel is supplied to the carburetor from the tank.

And how complete your tank is? If under the neck, then fuel is not supplied so will not be created in the tank. The reason can also be a torn membrane in a carburetor. In this case, you are in the service center.

Half a bacon. I tried even with an open lid. The membrane is not torn, it can be stretched In general, I will better take it to the service center. So as not to deliver her fuck

The PROMO RVS-43 trimmer does not start and the candle is dry, and gasoline enters the carburetor.Please tell me what the reason can be ? Thanks !

Help! The mower starts up but does not gain momentum

Good afternoon floods the candle drying it, it is a knife, a knife on the gas stalls a trimmer for grass new champion tell me what problems

In the trimmer Shtil FS 55, after replacing the ignition coil, oil seals and piston rings, does not start.What could be the reason

TEXAS trimer, there is a new piston, gasoline acts, it worked as a staller cooled a candle, I got a stupid changed the zero, you try to grab a dry candle, but it can’t get wet, as soon as the candle is weeping all sparks, that you advise you, that you advise.

After warming up the engine loses power and revolutions, what and what to do?

The lawn mower starts on the leak and when you turn off the leggbaking braid for grass stalls) help

Most likely problems with the carburetor. Engine defect needs.

Hello, a Chinese lawn mower is not started. Replaced the carburetor, piston, magneto. There is no effect. On the old piston were bulletin. What could be the reason.

The Carver GBC 31FS lawn mower is not started, and if you started, it does not work at low speeds (idle).What to do?

Good afternoon. The lawn mower recently began to start for a very long time when the accelerator is turned on, you need to pull the cord for a very long time, after which everything starts and works well, starting hot from the second third time, but during operation it splates the entire body of the motor felts, felts with working out or gasoline, I do not understand, help advice.

A motorcycle braid for Iron Angel BC 25 is not started that could be? Carbon new was working in a couple of days I did not want to start up

Problems with the carburetor, and the engine is necessary to defect. I read what you write?

Hello. The Stihl FS-55 lawn mower, the spit is 2 years old, but rarely used, the total operating time is no more than 5 hours (I think that less-the site is not large-I roll out in 15 minutes). Last year I worked strained, I had to gnaw so that I would not stall. This year, the plant does not respond to the plant at all. The candle is working-rearranged at the MS-180 saw, and a candle from saw to a braid. I also tried to fill the gasoline directly into the cylinder and start. the braid for the grass starts and stalls. T.e. Gasoline does not act. When you press the primer, the fuel enters it. Crossed the carburetor. it is virgin clean. Pulled out and wiped all the gaskets, filter. I blowed holes. When trying to unscrew the jacket. a little broke (broke) on a slot, but the nozzle itself is normal. He also blew him. In short, he killed all day on a thorough bulkhead (and more than once sorted out), but nothing helped. a braid for grass does not start. I also tried to regulate the carburetor. with the same result. What else can be done? In my opinion, it remains to only disassemble the braid for spare parts, and carefully examine each node. But somehow I really do not want to go there, despite the fact that the braid for the grass is almost zero, despite age.

The lawn mower stalls when you press the gas

The hole in the fuel cover (saepun) of a trimmer for grass

With a similar problem, it is worth paying attention to the fuel valve, which, when clogging, ceases to normally pass the fuel mixture. By solving this malfunction, it is weakening using a suitable tool. In addition, the problem with the circulation of the fuel mixture may cover in the contamination of the valve. To do this, just blow it with a stream of compressed air.

If you stalled when opening the damper

If the technique works properly at idle, but stalls when opening an air damper, this reports about the penetration of air into the system through cracks in the fuel supply hose or damaged oil seals. To fix the breakdown and establish the work of the tool without driving air from the atmosphere, it is necessary to replace damaged parts.

How to fix a Honda powered mower that has spark and fuel but won’t start

Another possible reason for the breakdown is the malfunction of the carburetor dosage system. To eliminate this problem, it is better to contact professionals.

At high speeds

When a braid for grass stalls at high speeds, this is due to the following problems:

clogging or clutching a valve located on the gas tank lid;
The carburetor was diluted under the influence of vibrations arising during the operation of the mechanism;
problems with the circulation of the fuel mixture;
atmospheric air
The hose intended for fuel fuel cracked or slightly connected.

The carburetor is regulated by relying on the operational instruction to the trimmer. For configuration, it is often enough to weaken the tightening of its body. If there are problematic issues with the circulation of the fuel mixture, then it can gradually enter the carburetor. After its production, the engine stalls at high speeds.

Rules for the operation and storage of a lawn mower

In order for the lawn mower to start well and continue to provide it with good storage and operation conditions:

During operation, carefully monitor the cooling system, carefully and in time, clean the channels in the case, as well as the ribs of the starter;
If necessary, use solvents, kerosene and other detergents for cleaning;
Do not clean the “hot” tool. let it cool;
Stactly comply with the requirements of the instructions for the operating mode, otherwise you can overheat the engine;
If you do not plan to use the lawn mower in the next month, the fuel mixture from it needs to be drained, t. to. Over time, it breaks up into heavy fractions, which will definitely clog the channels of the carburetor;
After draining the fuel, let the trimmer work at idle until it stalls, this will help to completely remove the rest of the working mixture.

Before winter storage, take the following steps:

completely disassemble the braid, rinse and clean all the details you can;
Inspect the details for damage, if necessary, eliminate distortions, impulses, bent and any other malfunctions;
Pour a sufficient amount of oil into the gearbox and clean the air filter;
You can partially disassemble the motor, rinse, blow and smear all the moving parts;
In order to lubricate the piston, you need to unscrew the candle, raise the piston with the outlet to the extreme dead point, pour a little oil into the candle hole and scroll the crankshaft a couple of times;
If you store the lawn mower not in the house, wrap the engine with an oiled rag.

Remember, careful compliance with the rules will allow you to forget that the lawn mower is bad for several seasons.

When it is poorly started on a hot diesel engine

To chagrin, diesel engines also from time to time may not start on a hot. In most cases, the causes of this phenomenon are malfunctions of subsequent nodes:

Cooling water sensor. Here the situation is similar to the one that was described in the last section. The sensor may fail and, accordingly, transmit incorrect information to the ECU.
The crankshaft position sensor. Situation similar to an injector engine.
Air mass flow sensor. Similarly.
Fuel pump of the highest pressure. Namely, this can happen due to a significant wear of bushings and a pumping shaft of the pump. Air enters the pump from under the omentum, which is why it becomes impossible to collect working pressure in the prelunate chamber.
Diesel engine.
Fuel pressure regulator.
Ignition module.

Now we will try to summarize the information given so that it is easier for you to find the cause of the breakdown if it happens to your car.

Checking the ignition by oscilloscope

What to do if the used fuel mixture is in perfect order, but as before it does not start Trimmer for grass

petrol? The prerequisites for the refusal of the mechanism can lie in excess moisturizing the candle channel. To diagnose and eliminate the task, you need to make the next:

Turn the candle. Wipe it painstakingly, and then dry it.
Drain the excess combustible in the chamber through the corresponding candle hole.
Clean an old candle if there is a dozen on its surface. The use of an ordinary ladies’ nail file or a file will allow you to cope with the task.
When installing the element in place, set a gap of 1 mm. To check the parameter, it is enough to place any coin in the lumen.
Collect a multifunctional block back.
Try to start a trimmer for grass.

The lawn mower is not started on hot

If the lawn mower was not so long ago in work and has not yet managed to cool but did not want to start. press the gas trigger, sharply pull the starter’s cord a couple of times until the engine is started and the gas trigger is released later. If quite a lot of time has passed and the lawn mower managed to cool, then you need start

As with cool. If the above methods did not help, the lawn mower did not start, then you should contact the service center.

Not starting on a cold trimmer for grass. we eliminate the cause

On the cold.The reason is an air leak that does not allow fuel to download. In the camera.

After several jerks, he will start and stall, which is a normal phenomenon. What to do when the fuel was definitely normal, there is a spark, but a trimmer for grass does not start a gasoline? Putting the damper to the working position, start the tool again and start working.

And again the carburetor.

Well, even if after such bullying your trimmer does not start for the grass, you can’t do without disassembling the carburetor. It may very well be that everything is to blame for the gathering of the needle in it. In any case, the disassembly and washing of this capricious mechanism certainly will not hurt.

In general, when a trimmer for the grass began to be capricious and stall, it is advisable to carry out complete prevention: to completely change the fuel mixture, try another oil, and also mandatory change the candle. The gasoline trimmer for the grass does not start? Reasons and decisions on. Practice shows that in many cases, it is precisely cheap low.quality candles that are to blame.

We examined the most typical reasons why a trimmer is not started for grass. If the matter is something more “exotic”, do not pass the campaign in the service center. You will probably find smaller and obvious breakdowns yourself.

Why is a trimmer not starting for the grass: the main malfunctions and their elimination

As already noted, such situations are characteristic of trimmers who were inactive for a long period of time. Therefore, after detecting the problem, you need to immediately take up the search for a malfunction.

Fuel as source of problems

The first stage is checking the presence of fuel and its quality. First of all, they are convinced that there is a fuel in the tank. Those who have acquired the unit recently, often forget that the trimmer for the grass needs refueling. If there is no fuel, then the equipment simply cannot work.

Lawn mower no spark fix

If there is a fuel in the tank, but the trimmer does not start for the grass, then the owner needs to check whether he is acting correctly. In this case, it is recommended to study the instructions. If the launch is made correctly, then the malfunction can cause the inappropriate quality of the mixture.

Oil. It should be special. intended for two.stroke engines. It is not recommended to save on the product, since the life of the equipment depends on the mixture. Trammers for grass with a four.stroke engine require pure gasoline, it is not mixed with butter.
It is necessary to use not only high.quality gasoline, but also the brand that is recommended by the manufacturer of a particular model. If it is not possible to find out what fuel is necessary, then it is recommended to choose either AI-95 or AI-92, and the last gasoline is a favorite, since the first has additives that react with two-stroke oil. Other brands do not advise using.
The correct preparation is shifted for a benzotrimer. It is noted that at first this stage is paid to maximum attention, but over time, kosari begin to mix the composition “by eye”, and this is already a serious mistake. The correct ratio of gasoline and oil is 25: 1. For a liter of the first, 40 ml of the second, two.stroke. Motor oil intended for a car is an inappropriate option, since at high temperatures the liquid loses (partially) lubricating properties.

The correct storage conditions of the fuel mixture are important. To save time, some owners prepare it for the future to use it in the coming weeks. This option is contraindicated, since the prepared fuel mixture quickly becomes unsuitable. The reason is the precipitation of oil loss. With this change, both oil products lose their properties. Even repeated stirring is not able to restore the initial quality of fuel. Therefore, they recommend preparing a certain volume: 2 liters, no more.

If everything is in order with gasoline and oil, then they start diagnostics. to check the spark plug.

Candle and its condition

At this stage of diagnosis, you need to stop in more detail. Most experienced owners who are already familiar with the question of why a trimmer for grass does not start, first of all check the state of contact contacts. Diagnosis of this element is carried out as follows:

First, the spark plug is unscrewed, then inspect. If the electrodes are in perfect condition, then they should have a carpet whose color resembles a brick. Wet element, or white, black plaque on contacts indicates the presence of any malfunction. Pink and red electrodes. proof of a large number of additives in fuel. Such a mixture must be replaced.
In the event that the spark plug is wet, this means that the combustion chamber has unbroken fuel. It is left in place. Candle contacts are cleaned, then dried (calcination is prohibited). After this stage, the candle is connected to the nurser.
Then the ignition is turned on, the frontier handle is pulled. When everything is in order with the element, it must issue a constant spark. If it is weak or completely absent, then the verdict is one. you need to replace the spark plug.

There is another reason why a trimmer is not started for grass. This is a big gap that appeared between the contacts of the candle. A distance of 0.7-1 mm is considered normal. To correctly adjust the gap between the electrodes, use special probes.

If there is no such device, then the folk method is used. A razor blade breaks, folds its parts together. Then this “probe” is inserted between the contacts. Ideal. blades that enter tightly.

The problem is in the fuel and the carburetor

If there is a spark, and a trimmer for grass still does not show signs of life, then nuisance can lie in the fuel supply to the combustion chamber. To make sure that this node is to blame, they perform such actions:

They are typed in a syringe or poured into a lid from a plastic bottle of about 20 ml of fuel.
Then, through the candle hole, the fuel is neatly poured into the combustion chamber.
The candle is returned to the place, put on the imminent, the engine is launched.

In the event that the trimmer has started for the grass, the problem may be in the fuel and carburetor. Когда эффекта от проделанных манипуляций нет, диагностику продолжают — проверяют высоковольтный провод. At the slightest suspicion, this consumption element is replaced by a new.

What to do if the engine is a trimmer for grass still refuses to work? In this difficult case, you can follow the following recommendations:

How to avoid most problems?

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

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

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

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

Why is a trimmer not starting for the grass: the main malfunctions and their elimination

Fuel as source of problems

Oil. It should be special. intended for two.stroke engines. It is not recommended to save on the product, since the life of the equipment depends on the mixture. Trammers for grass with a four.stroke engine require pure gasoline, it is not mixed with butter.
It is necessary to use not only high.quality gasoline, but also the brand that is recommended by the manufacturer of a particular model. If it is not possible to find out what fuel is necessary, then it is recommended to choose either AI-95 or AI-92, and the last gasoline is a favorite, since the first has additives that react with two-stroke oil. Other brands do not advise using.
The correct preparation is shifted for a benzotrimer. It is noted that at first this stage is paid to maximum attention, but over time, kosari begin to mix the composition “by eye”, and this is already a serious mistake. The correct ratio of gasoline and oil is 25: 1. For a liter of the first, 40 ml of the second, two.stroke. Motor oil intended for a car is an inappropriate option, since at high temperatures the liquid loses (partially) lubricating properties.

If everything is in order with gasoline and oil, then they start diagnostics. to check the spark plug.

Candle and its condition

At this stage of diagnosis, you need to stop in more detail. Most experienced owners who are already familiar with the question of why a trimmer for grass does not start, first of all check the state of contact contacts. Diagnosis of this element is carried out as follows:

First, the spark plug is unscrewed, then inspect. If the electrodes are in perfect condition, then they should have a carpet whose color resembles a brick. Wet element, or white, black plaque on contacts indicates the presence of any malfunction. Pink and red electrodes. proof of a large number of additives in fuel. Such a mixture must be replaced.
In the event that the spark plug is wet, this means that the combustion chamber has unbroken fuel. It is left in place. Candle contacts are cleaned, then dried (calcination is prohibited). After this stage, the candle is connected to the nurser.
Then the ignition is turned on, the frontier handle is pulled. When everything is in order with the element, it must issue a constant spark. If it is weak or completely absent, then the verdict is one. you need to replace the spark plug.

If there is no such device, then the folk method is used. A razor blade breaks, folds its parts together. Then this “probe” is inserted between the contacts. Ideal. blades that enter tightly.

The problem is in the fuel and the carburetor

They are typed in a syringe or poured into a lid from a plastic bottle of about 20 ml of fuel.
Then, through the candle hole, the fuel is neatly poured into the combustion chamber.
The candle is returned to the place, put on the imminent, the engine is launched.

What to do if the engine is a trimmer for grass still refuses to work? In this difficult case, you can follow the following recommendations:

In doubt about the candle and the high.voltage wire, it is better to immediately replace them.
If, when checking the new sparkling candle, it was not possible to achieve a spark, then it is almost possible to say with complete confidence that the ignition unit is faulty. the coil came out of the system.

Check its serviceability simply: they twist the candle, then it is led to the trimmer body for grass. If there is no spark when the starter jerks, or it does not appear every time, then a new coil is required. This element can also be replaced independently.

How to avoid most problems?

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

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

Sources:

https://delta-instrument.ru/tehnospravka/trimmer-zavoditsya-i-glohnet.html
https://tehnolev.ru/dlya-chistoty-i-poryadka/trimmer-dlya-travy/benzinovyy-trimmer-ne-zavoditsya-prichiny-chto-delat-esli-iskra-est.html
https://remontpoumu.ru/ne-zavoditsya-benzokosa-prichiny-i-sposoby-ustraneniya-neispravnostej/
https://gardenzoom.ru/veroyatnye-prichiny-pochemu-ne-zavoditsya-benzokosa-sposoby-ustraneniya/
https://kamuflyzh.ru/instrument-i-oborudovanie/benzokosa-zavoditsya-i-glohnet-prichina.html
https://stepplay.ru/tehnologiya/trimmer-patriot-ne-zavoditsya-na-goryachuyu.html
https://kamuflyzh.ru/instrument-i-oborudovanie/ne-zavoditsya-trimmer-benzinovyj.html
https://baltija.eu/2021/04/07/pochemy-ne-zavoditsia-trimmer-poisk-prichin-i-ih-korrektnoe-ystranenie/
https://dom-i-remont.info/posts/instrumenty/pochemu-ne-zavoditsya-trimmer-poisk-prichin-i-ih-korrektnoe-ustranenie/

Lawn Mowers does, lawn, mower, start