The lawnmower starts and then immediately stops

The lawnmower does not start smoothly? Adjust the magneto gap

If the grass trimmer or lawnmower does not start, then there is no desire to cut the grass. Very often the owners of these tools face difficulties with starting a two- or four-stroke engine after the winter, when the tool has not been used for a long time. If such a situation occurs, you should not hurry to give the tool in repair. Start troubleshooting from less to more, and with 100% probability you will be able to start the engine benzotrimmer. With what to start troubleshooting when the lawn trimmer does not start, let’s take a step-by-step look at all the details.

Why does not the grass trimmer (gasoline)?

Because he worked his. Why, there can be any number of answers to this question. Bad fuel is not an argument. Maybe a person does not know how to use it, so does not start correctly. Not getting the fuel, the plug is broken, wire puncture, not turned on, does not know how to use, trimmer for grass burnt / broken, so little else what the reasons may be. There is also such a reason. hands are hooks.

There may be several reasons why gasoline grass trimmer does not start.

If the grass trimmer does not start or immediately stops after start, the problem may be in the fuel tank (namely the quality of fuel), in the plug and spark plug duct, air or fuel filter, breather or exhaust pipe.

1). Be sure to test the presence, and most importantly the quality of the fuel mixture before you start the trimmer for grass.

2). The grass trimmer may not start or may shut down if the spark plug is clogged. It needs to be unscrewed and wiped down.

It takes at least 30-40 minutes to dry the spark plug duct. Otherwise the new plug may also fill up.

lawnmower, starts, then, immediately, stops

3). If the grass trimmer does not start without the air filter, then it is better to change the old filter.

4). The weed trimmer may not start if the fuel filter is dirty.

5). Also grass trimmer can not start due to a clogged breather.

It can also be caused by dirt in the exhaust port or a clogged muffler screen.

A petrol grass trimmer can stop starting for several reasons at once.

First of all: try to clean the carburettor because if it gets dirty, it would damage your lawn trimmer.

Second: there could be a vacuum in the barrel. If this is the case, try making a small slit in the barrel cap.

Third: Check that the grass trimmer is set up correctly.

There are several reasons why a grass trimmer will not start. I’ll list the main ones:

  • Bad fuel. Each grass trimmer model requires gasoline with a specific octane rating. Check the owner’s manual and make sure you’re pouring exactly the right kind.
  • Plugged plugs. At the same time I advise you to check the spark plugs for serviceability. Sometimes even new (in the box) spark plugs can be inoperable or defective.
  • fuel mixture does not flow into the carburetor. Pump it up a little.
  • the ignition coil is out of order.
  • the muffler is clogged. You need to free it from the fouling. To do this, carefully disassemble and clean it (you can burn it on a gas stove).

Grass trimmer usually does not start after the winter, and we used to take the grass trimmer to the shop almost every spring, where we fixed it. But, one day, a knowledgeable person advised us to.First, never leave the gasoline in the trimmer for the winter, because the old gasoline can be the reason that the grass trimmer does not start, and he also said that is necessary to start the grass trimmer pumping carburetor fuel mixture. After we began to follow these rules, our problems with the trimmer disappeared.

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First of all you can look at the spark plug. If necessary replace it, making sure that the spark plug is not punctured and gives a normal spark. The next problem will be hidden in the fuel system. As it was said above, we check the tightness, then we check the fuel filter, if necessary we change. Clean the carburetor, see the effect. It may be necessary to dig into the ignition system, adjust the settings. To check the fuel system, you can pour a few grams directly into the cylinder through the plug holes, screw in the plug and try to start. At least grass trimmer should make a sound of the engine running for 1-2 seconds, and a little smoke should fly out of the muffler.

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If your grass trimmer does not start or just stops after you have started up, then you should first of all look for the reason in the main nodes and assemblies, and you need to do this in the sequence below by checking, so, this sequence:

In these nodes in the main and may be the whole problem.

RPM drop on trimmer. Why the gasoline grass trimmer stops

Grass trimmer, which has a gasoline drive. it is a useful thing for owners of household plots, lawns, and when the grass trimmer suddenly stops, the work of clearing the area of grass stops. The device itself is a fairly complex mechanism, so there are many different causes of its failure. The most common malfunctions are contained in the operating instructions. Know the causes, why the trimmer for grass stalls, it is necessary to effectively perform the repair of the device independently. Malfunctions with the chain saw associated with the fact that this device does not start, are classified in a certain way by service technicians. These include faults with the following parts of the mechanism:

  • The engine, in which the piston and bearings can wear out or fail, the crankcase can crack;
  • the fuel supply system, with the possibility of a clogged filter or carburetor problems;
  • mechanical damage to wires, tubes, hoses;
  • The ignition circuit.

In order to correctly identify the node where the failure occurred, it is necessary to pay attention to the circumstances under which the grass trimmer stalls.

Causes of malfunction and their elimination

In order to most accurately determine the cause of malfunction of any brand of grass trimmer (e.g., Echo) and find out the possibility of fixing it, you need to establish, when performing what action the device stalls. The engine can turn off both at idle and at high revolutions, when heated under load or immediately after starting, etc.д.

If it stalls after the gas is turned on

Owners of gasoline mowers often tell that their lawnmower malfunctions on the gas. Usually such a breakdown occurs due to malfunctions in the carburetor. Malfunction may be caused by prolonged storage, use in harsh environments, significant motor overload. The symptom of such breakdown will be vibrating movements of the device during operation.

For the record! Users familiar with automotive carburetor repair can try to repair this important grass trimmer assembly on their own, using the operating instructions. If this is not the case, the right thing to do is to ask for help from a service center.

Sometimes the grass trimmer stops when you throttle because the fuel valve is clogged. This interferes with the petrol supply. To avoid this problem, it is sufficient to loosen the valves. This will restore the normal fuel supply to the carburetor.

Second. the carburetor

There is no need to immediately disassemble the assembly. especially if the engine stops after starting or fails to idle. First try to change the fuel, maybe there is too much oil in it. You can inject a cleaner into the air filter, give the engine a little “dry run” at maximum rpm.

Next we go in order. air filter, fuel filter (it can be outside and in the tank), the fuel pump button, the integrity of the hoses. Gas tank plug. may be a clogged vent valve, the motor just doesn’t pump gasoline. Blow it all out and it works!

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Be sure to look at the carburetor connection to the intake manifold! If it is sucking air and not airtight, you have to fix it!

lawnmower, starts, then, immediately, stops

Dosing needle hangs up. also a problem in some models. It is sufficient to push it down or remove it and sand it with velvet.

You can pull off the hose from the carburetor, see if the fuel goes to him when pumping. It is clear that often to check the engine it is necessary to remove the plastic cover and break your fingers on the latches, but sooner or later you have to get there.

How to clean and store the tool?

Keep an eye on the engine cooling system while the lawnmower is in operation. The channels in the starter housing as well as the cylinder ribs must always be clean. If you ignore this requirement and continue to operate the brushcutter, you can put the engine out of operation due to overheating.

Competent care of the chain saw during operation allows to use it for several seasons in a row without serious repair

Let the engine cool down before cleaning. Take a brush with a soft pile and clean the outer surface from the dirt. Plastic parts can be cleaned with solvents, including kerosene, or special detergents.

After the summer season is over, the lawnmower should be prepared for long term storage. To do this, the fuel mixture is drained from the tank. Then the engine is started in order to deplete the residual fuel in the carburetor. The entire tool is well cleaned of dirt and sent to “winter hibernation”.

As you can see, the repair of faults of the domestic lawnmower can be quite on their own. The service department should be called in case of serious breakdowns. The cost of repair must be weighed against the price of a new lawnmower. It may be more appropriate to buy a new tool.

Why the grass trimmer stops when you press the throttle, at high and no revolutions, when heating or opening the air damper

A petrol-driven grass trimmer is a useful thing for home garden owners, lawn owners, and when the grass trimmer suddenly stops, the work of clearing the area of grass stops. The device itself is quite a complex mechanism, so there are many reasons for its breakdown. The most common malfunctions are operating instructions. Know the reasons why the grass trimmer stops, it is necessary to carry out repairs to the device yourself.

At high revolutions

When the grasshopper stalls at high rpm, it is due to the following malfunctions:

  • A clogged or jammed valve located on the gas tank lid;
  • The carburetor has become misaligned due to vibrations that occur during operation of the machine;
  • problems with fuel mixture circulation;
  • Atmospheric air suction;
  • The hose designed for fuel intake is cracked or weakly connected.

The carburetor is adjusted, based on the operating instructions to the trimmer. For adjustment, it is often enough to loosen the tightening of its body. If there are problems with the circulation of the fuel mixture, it may flow into the carburetor little by little. After its development, the engine stops at high revolutions.

The grass trimmer does not start in the cold. eliminate the cause

at cold.The reason is air suction, which does not allow the fuel to be pumped. Into the chamber.

After a few jerks, it will start and stall, which is a normal phenomenon. What to do when the fuel was exactly normal, the spark is there, but the trimmer for grass gasoline does not start? After moving the flap to the working position, start the tool again and start working.

Gasoline saw stalls at high revolutions. a simple repair of the carburetor

The carburetor of the tool is exactly the mechanism that most owners are afraid to disassemble on their own. The reason is that this mechanism consists of many small parts, the location of which should be remembered when carrying out disassembly work. However, all is not as terrible and difficult as it may seem. To understand what relationship the carburetor has to the problem of the engine stopping working when the revs are increased, you need to know its principle of operation, described on the site.

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Stops the chainsaw when you press the gas because of the carburetor, if:

  • The membrane is damaged
  • The filter element (the mesh in the carburettor) is clogged. This malfunction can be encountered by owners of tools that have no fuel filter or it is simply disconnected from the fuel hose

It is recommended to clean and wash the carburetor of a chainsaw, as well as replace faulty parts and elements. After that it can be put back, not forgetting also to replace (if worn) the gasket between the carburetor and the adapter.

Grass trimmer won’t start. Why?. Agritechservice

Gasoline grass trimmer is a surprisingly useful thing, with which you can, without too much trouble to arrange not only a miniature lawn in the backyard of the house, but also to mow a considerable size of the lawn. But like all things in this world, it tends to break. In this article, we will try to figure out what to do in cases where the grass trimmer refuses to work.

Gasoline grass trimmer does not start well

So, what should you do if your petrol grass trimmer does not start or does not start at all?? The most widespread reason of such a low-quality fuel. Remember that, for example, trimmers for grass “STIHL” and “Husqvarna” hardly start on fuel quality below АI-92.

Don’t skimp on fuel.к. repair of cylinder parts.piston group can cost a third of the whole cost of a grasshopper, and sometimes even half. Also, when preparing the fuel mixture you need to correctly observe the proportions of fuel and oil, which are always specified in the manual to the trimmer.

What to do if the gas tank is filled with quality fuel, there is a spark, but the tool still refuses to start? It is necessary to check the condition of the spark plug. It is located in the center of the lawnmower. You need to unscrew it carefully and make sure it is not covered with. If there is one, carefully clean the spark plug from the soot and dry it.

If the grass trimmer does not start even after the methods suggested above, then you need to try removing the air filter and start the device without it. If the grass trimmer still does not work, give the old filter a good dusting or buy a new one.

It also happens that the mower runs for a maximum of five minutes and then shuts off and does not start until it cools down. In that case try opening the filler cap of the gasoline head. you should see a suction sound.

lawnmower, starts, then, immediately, stops

After that, screw the cover back on. If you do this manipulation during the time when the grass trimmer has just started to stall, the revolutions will be restored and you can continue to work.

If the lawn trimmer has stalled before the cover is opened, you just need to start it up properly according to the instructions.

Grass trimmer does not start after winter

How to be in such a situation? Don’t get worried and panic. This is a very common problem which can be solved in about 3-4 minutes. First, if last year’s fuel is left in the gas tank, it must be drained.

Gasoline loses its octave properties already after 2 weeks of idle time. Second, starting the lawnmower after a long standstill should be done in a slightly different way.

First you need to open the choke and pump some fuel mixture into the carburetor, then pull the knob until you feel a slight resistance. You can now start the weed trimmer.

Grass trimmer starts and stops

If the grass trimmer starts but immediately stops when you try to start it, the air filter may be the cause again. You need to take it off and check if it is clogged with dust.

If it is really clogged, you can either clean it thoroughly or buy a new one. The problem may also be a faulty ignition coil.

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