Lawn Mower Stalls When Pressed On Gas

The Lawn Mower Stalls After 5 10 Minutes of Work EVDIRAL.Ru

A spit with a gasoline drive is a necessary thing for the owners of personal plots, lawns, and when the trimmer stalls at one moment, the work of cleaning the area from grass stops. The device itself is essentially a rather complicated mechanism, because there are many different circumstances of its breakdowns. The most common problems are contained in the operating annotation. Know the prerequisites why the trimmer stalls, so that without the help of others, it is possible to perfectly repair the device.

The problems with the brushcutter, which are associated with the fact that this device does not start, are specifically classified by service specialists. They highlight malfunctions with such nodes of the mechanism:

  • Engine where it can wear out, in other words, the piston and bearings fail, crack the crankcase;
  • Fuel supply system, with all this you clogging the filter or tasks with the carburetor;
  • Mechanical damage to wires, tubes, hoses;
  • Ignition circuit.

In order to correctly find the node where the breakdown occurred, you need to check the circumstances in which the trimmer stalls.

If, when you press the gas, the brushcutter stops, then there are subsequent prerequisites.

  1. A more common option is carb adjustment error, which appears at significant loads on the drive, after prolonged inactivity of the mechanism, in other words, when it is used in languid conditions.
  2. Fuel valve clogging, which relieve him of relaxation, and as a result, gasoline begins to flow normally through the system.
  3. Loosening and drooping of the cable in the carburetor. Also arises fuel hose extension right before it breaks, caused by the action of a significant load.
  4. Clogged breather (check valve), for this reason, fuel does not enter the tank.

The engine STARTS AND DIES. Background

If the problem is connected with the carburetor unit, then it can be recognized when there are vibrations of the brushcutter. When the hose bursts or the cable stretches. They make a change of these devices.

When the braid stalls at high speeds, this is due to such problems:

  • Clogging or sticking of the valve located on the gas tank cover;
  • The carburetor is out of alignment under the influence of vibrations that occur during the operation of the mechanism;
  • Difficulties with circulation of fuel consistency;
  • Air leaks;
  • The hose created for the fuel intake is cracked or loose.

Carburetor adjust, focusing on operational annotation to trimmer. For an option, it is often sufficient to loosen the tightening of its housing. If there are problems with the circulation of the fuel consistency, then it can gradually enter the carburetor. After its development, the engine stalls at huge speeds.

At idle, the following are common causes of trimmer stopping:

  • Pollution, misregistration or incorrectly adjusted carburetor adjustment;
  • Clogged air filter;

Lawnmowers air filter change

Trimmer air filter

  • Reduction of the speed of the gearbox when it is heated, which is a consequence of the use of inappropriate fuel consistency;
  • Throttle clogging;
  • Air entering the system;
  • Not enough fuel to do the brushcutter.

If the carburetor is the problem, then the equipment will stop both during a “cold” and a “hot” start.

The unit may stall immediately after start-up, if the carburetor is misregulated or has been incorrectly configured. This causes uneven fuel supply. The result of this is that the device begins to vibrate clearly. To eliminate problems, the carburetor is reconfigured, acting on the annotation to the mechanism.

Trimmer warm up and stall (Change piston group).Repair brush cutter, the new piston group

Also the engine stops when it happens valve clogging, fuel supply. In this option, it is quite easy to clean it. If the lawn mower first worked, but later stalled immediately, then the fuel comes into the carburetor unit with some difficulty. The easing of the valve helps to solve the problem, which ensures the free circulation of consistency in the system.

A stop can also be called. Air suction in the presence of mechanical damage to the hose (holes, cracks), producing a fuel intake. Then it is necessary to add revolutions to the drive so that air bubbles can be expelled faster from allowing accounting (software).

Lawn mowing often stops when heated. At the same time, it starts up, works “jerkily” and stops evenly. This process occurs when gas in the carburetor boils or the damper is installed there rotary, not disk type. In the latter case, the item is changed.

It happens that the trimmer heats up if ignition wire damaged or coil. To the device began to work normally, make a change of parts.

It happens that the unit stalls when the air damper is opened, normally idling. This is due to air leaks in the system caused by the presence of fuel hose cracks or problems with oil seals. Also, the carburetor dosing system may malfunction, here the lawn mowing will stop after opening the damper.

Carburetor fuel hose

Our client is left with the probable preconditions that the brushcutter stalls, and methods for their elimination are contained in the following

There are many reasons for stopping the lawn mowing, but for the most part there are problems in the work associated with its carburetor. They come in any form. The most problematic option is when a severe breakdown occurs, and it will come in handy to get new parts or change the brushcutter.

In order for the trimmer to work normally for more than one year, it is imperative to comply with the requirements of the operating annotation. It is necessary to refuel the unit with a suitable fuel consistency, the device should work at moderate load.

Lawn Mower Stalls After A Few Minutes

Lawn Mower Stalls When Pressed On Gas

Self-repairing lawn mowers

Repair of lawn mowers is carried out taking into account the mechanism of work and the background of the breakdown of the unit. Often, the device fails after 3-4 years after active use.

Lawnmower repair is needed in the following cases:

  • The device does not start;
  • Unit is swiftly stalls after start up;
  • The motor does not work at full power.

Reasons for the malfunction

Prerequisites for mower failure:

In the first case, you will need to change the case, handles, knives and wheels for lawn mowers. When the knives are locked, the unit stops mechanically. Such a breakdown is associated with an attempt to mow hard or taller grass. Repair of the mower consists in freeing the cylinder from the stuck grass and scrolling it in the other direction.

When operating a lawn mower with a blunt or warped knife, the grass mowed unevenly. With all this, the device may vibrate or brake sharply.

In order for the device to work properly, it is recommended to sharpen the knives with a rattle (angle of 30 °). In an unpleasant case, an abrasive tape is used. The gap should be between 2 blades, touching the strip. The device cuts in periodically (15 seconds). If the knives are sharp, then the strip is removed, the gap is adjustable.

If the knives are not in the correct position, the cylindrical lawnmower makes abrupt and uncontrolled movements. Normally, the gap between the cutting elements should be thinner than a sheet of paper. In an unpleasant case, the clearance is adjusted. For earlier it is recommended to study the annotation of the device, pull out the plug from the outlet. With a loose connection, a whistle occurs. The device vibrates and rattles. Under the lawn mower repair, bolt joints are supposed to be adjusted.

If the belt breaks or stretches, then you need to change it. To do this, you will need to loosen the screws. Then the pulley moves, the belt is dismantled. A brand new part is worn on a small, and then on a large pulley. The gear is returned to its original position. The next step is to check the tension of the new belt. Deflection should not exceed 4 mm.

Faulty electrical models

The premise of a sudden shutdown of the electronic mower is related to a broken cable or lack of current. In the first case, it is recommended to check the cable for an open. To change the power cord, you will need to unplug the plug from the outlet, open and dismantle the switch cover.

Before unscrewing the cable clamp plate? You need to understand the scheme of its connection to the switch. To disconnect the cord, use a hexagon (1 mm across). The clamp is released, the conductors are dismantled. A multimeter is used to check the cable for an open. A new cord is installed as needed. With all this, the reverse sequence is observed.

Trimmer. On the hot stalls. Possible cause and remedy.

Immediately I draw your attention to the fact that this is not a carburetor. (My Facebook website.

Trimmer stalls or suffocates when you press the gas

Even more information about repair and tool selection on our website www.Looktool.Ru come in, we are glad to everyone.

In the 2nd case recommended connect another device to the mains. Electronic devices may not work if the fuse in the plug is damaged. To carry out repairs, you will need to disassemble the plug. For this, a screwdriver and a tester are used.

Motor problems occur when the mower overheats:

  • As a result of long-term work;
  • Due to overload (the cutting element is blocked by some object).

In the first case recommended wait A couple of minutes, so that the motor cools down. In second case you will need to remove the stuck item. The effectiveness of the cooling system depends on the condition of the air filter. A dirty device does not allow air to pass through, which helps to turn off the device. Specialists recommend cleaning and changing the filter 1 time in 3 months (with the lawnmower being constantly used). If the electronic motor breaks down, a corresponding smell and noise occur. In this case, you will need to change the drive.

Motor breakdown

Gasoline lawn mower design in contrast

Lawn Mower Gasoline Stalls During Operation EVDIRAL.Ru

A spit with a gasoline drive is a necessary thing for the owners of personal plots, lawns, and when the trimmer stalls at one moment, the work of cleaning the area from grass stops. The device itself is essentially a rather complicated mechanism, because there are many different circumstances of its breakdowns. The most common problems are contained in the operating annotation. Know the prerequisites why the trimmer stalls, so that without the help of others, it is possible to perfectly repair the device.

What could break

The problems with the brushcutter, which are associated with the fact that this device does not start, are specifically classified by service specialists. They highlight malfunctions with such nodes of the mechanism:

  • Engine in which the piston and bearings may wear out or fail, crack the crankcase;
  • Fuel supply system, with all this, there may be a clogging of the filter or a task with a carburetor;
  • Mechanical damage to wires, tubes, hoses;
  • Ignition circuit.

In order to correctly find the node where the breakdown occurred, it should be noted under what circumstances the trimmer stalls.

When you press the gas

If, when you press the gas, the brushcutter stops, then the following prerequisites occur.

  1. A more common option is carb adjustment error, which appears with significant loads on the drive, after prolonged inactivity of the mechanism or when it is used in languid conditions.
  2. Fuel valve clogging, which relieve him of relaxation, under the influence of which gasoline begins to flow normally through the system.
  3. Loosening and drooping of the cable in the carburetor. Also appears fuel hose extension right before it breaks, caused by the action of a significant load.
  4. Clogged breather (check valve), for this reason, fuel does not enter the tank.
Lawn mower gasoline stalls during operation.

If the problem is related to the carburetor assembly, then it can be recognized by the appearance of vibrations of the brushcutter. When the hose bursts or the cable is stretched, these components are replaced.

At high speeds

When the braid stalls at high speeds, then this is due to the following problems:

  • Clogging or sticking of the valve located on the gas tank cap;
  • The carburettor is out of alignment with vibrations that occur during work mechanism;
  • Circulation problems fuel mixture;
  • Air leaks;
  • The fuel intake hose is cracked or loose.

Trimmer trimmer stalls when adding gas / Benzonase trimmer Stalls when the throttle

Benzokos trimmer Stalls when adding gas. The trimmer does not pull. Trimmer loses speed at load.

Carburetor adjust, Based on the operating instructions for the trimmer. To adjust, it is often enough to loosen the tightening of its body. If there are problematic moments with the circulation of the fuel mixture, then it can gradually enter the carburetor. After its development, the engine stalls at high speeds.

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At idle

At idle, common causes of trimmer stopping are the following:

  • Contamination, misregistration or improperly adjusted carburetor adjustment;
  • Clogged air filter;

Replacing the Lawn Mowers Air Filter

Trimmer air filter

  • Reducing the speed of the gearbox when it is heated, which is a consequence of the use of inappropriate fuel mixture;
  • Throttle clogging;
  • Air entering the system;
  • Not enough fuel to operate the brushcutter.

If the carburetor is the problem, then the equipment will stop both during a “cold” and a “hot” start.

Right after wound up

The unit may stall immediately after start-up, if the carburetor is misregulated or has been incorrectly configured. This causes uneven fuel supply. The result of this is that the device begins to vibrate distinctly. To troubleshoot, the carburetor is reconfigured according to the instructions for the mechanism.

Also the engine stops when it happens valve clogging, supplying fuel. In such cases, it is simple enough to clean it. If the lawn mower first worked, but then immediately died out, then perhaps the fuel enters the carburetor assembly with some difficulty. The easing of the valve helps to solve the problem, which ensures free circulation of the mixture in the system.

A stop can also be called. Air suction in the presence of mechanical damage to the hose (holes, cracks), producing fuel intake. In this case, add revolutions to the drive in order to quickly expel air bubbles from the system.

When heated

Lawn mowing often stops when heated. At the same time, it starts, works “jerkily” and gradually stops. This process occurs when gas in the carburetor boils or a shutter in it is installed rotary, and not disk type. In the latter case, the item is changed.

It happens that the trimmer heats up if ignition wire damaged either a coil. In order for the device to start working normally, replace parts.

When opening the choke

It happens that the unit stalls when the air damper is opened, normally idling. This is due to air leaks in the system caused by the presence of fuel hose cracks or problems with oil seals. The carburetor dosing system may also malfunction, while the lawn mowing will stop after the shutter is opened.

Carburetor fuel hose

All possible reasons that the brushcutter stalls, and ways to resolve them are contained in the next

There are many reasons for stopping the lawn mowing, but the most common problems in operation are related to its carburetor. They can occur in any cases. The most problematic option is when a serious breakdown occurs, and you will need to purchase new parts or change the brushcutter.

In order for the trimmer to work normally for a long time, the requirements of the operating instructions must be strictly observed. It is necessary to refuel the unit with a suitable fuel mixture, the device should work at moderate load.

The Lawn Mower Stalls After A Few Minutes of Work EVDIRAL.Ru

When chainsaw owners have to face then, that the saw, for no apparent reason, ceases to work normally. We will try in our article to understand why the chainsaw stalls under different operating modes, and in addition to outline the most to diagnose a malfunction.

The situation in which a chainsaw starts up during a cold one can stall during heating, is familiar to many who have it in business. The main prerequisites for such saw behavior are subsequent.

  • Faulty ignition module (coil). There is an option to find a malfunction by checking the spark first on a cool engine, and then on a hot one. If there is no spark on a hot engine, it means you should try to remove the fault by replacing the ignition coil.
  • The chainsaw carburetor has an incorrect setting (pours a candle on a hot one). There is an option to find a problem by how the saw starts to cool. If for a cool start you do not need to close the air damper, and the engine starts without a preliminary flash, it means the fuel mixture is not formed correctly and after heating the engine, the fuel fills the candle and makes the start-up impossible. The problem is eliminated by adjusting the carburetor.
  • Defective spark plug. Under these circumstances, similarly to a faulty ignition coil, a spark is lost when the engine is heated. It is worth trying to replace the spark plug with a new one, if this did not help, then it is necessary to check the ignition coil and the gap between it and the flywheel.

Check the ignition coil of course using a multimeter or replacing it with a pre-functional one. The multimeter checks the primary and secondary windings by working in the resistance measurement mode. The resistance index of the primary winding, the working coil, is 1 kOhm. Secondary 4 kOhm.

[DIY] When the MTD lawnmower stalls. Carburetor Repair BRIGGS STRATTON.

Sometimes a chainsaw under load is unable to work normally and simply stalls. A common reason for this behavior is incorrect carburetor adjustment, or air intake through the crankshaft oil seals on another carburetor gasket. Also, this behavior is due to leaking carburetor.

Diagnose the cause and remove the fact that the chainsaw starts up and stalls under load, it is ideal in service, because a special tool is needed to check the density of the carburetor and the crankcase.

The saw, unable to work under load, will also hesitate to delay idle speed. They will “swim.” Diagnostics begins with a check for the density of the crankcase and carburetor. If air leaks through the crankshaft oil seals are detected, they must be replaced. If air leakage is detected in the carburetor, remove the cause of course by installing a repair set of gaskets.

Only if the above actions did not give a result and the engine crankcase with the carburetor are tight, we proceed to adjust the carburetor.

The reason for this method is as follows: if the air intake from the crankcase has not been eliminated, and the carburetor has simply been adjusted before the normal operation of the engine, the fuel mixture will contain a lot of fuel than is required for a sealed crankcase, which again will significantly increase its consumption. Also, most likely, soot will appear in the engine, which will also adversely affect the upcoming work of the chainsaw.

In some models of chainsaws, to ensure the operation of the fuel pump, special hoses are installed that transmit air impulse from the crankcase to the carburetor fuel pump. If this common hearing hose is frayed, the saw will idle and will not work completely under load.

For owners of household HUSQVARNA 137 and HUSQVARNA 142 chainsaws, for all deviations of the motor from the norm, it is necessary to first inspect the impulse hose, since this is considered the most common prerequisite for the breakdown of these chainsaws.

Watch the below on how to change a defective impulse hose at home with a HUSQVARNA 142 chainsaw. There, the process of disassembling the saw was filmed step by step, a pulse hose was shown, and the consequences of its malfunctioning HUSQVARNA 142 were discussed.

If the chainsaw a minute after starting does not have the ability to gain momentum as it is also called, it stalls when the trigger is pulled, most likely, the carburetor or engine crankcase is leaking. As in the previous case, the problem is best done by checking for density and adjusting the carburetor.

If the chainsaw does not develop and stalls when it normally worked for about 5 minutes, the cause may be a defective fuel tank breather. The vacuum created in the fuel tank over the years of operation of the tool does not allow the engine to receive the right amount of fuel for its normal operation, and therefore it will be unable to gain momentum or stall. Here, if you pause the tool, open and close the fuel tank cap and start the chainsaw and again, the tool will work normally again for about 5 minutes, after which it will stop gaining speed or will stall.

A prerequisite for the fact that the chainsaw does not develop, there is also an excess deposit in the muffler, which makes it difficult to exhaust the exhaust gases, thereby reducing the power and speed of the engine.

If you want to check the crankcase density, alas, the absence of a special tool, use the following verification procedure.

  • Remove the side cover and tire from the chainsaw.
  • Unscrew the spark plug and lay the cord with the knots in the cylinder through the spark plug hole, thereby stopping the movement of the piston and crankshaft.
  • For a lace with knots, an old cord from the starter is used, after having tied knots in it after 3-5 cm.
  • Unscrew the driven sprocket of the chainsaw.
  • Remove the oil pump cover and the pump itself.
  • Remove the starter from the chainsaw.
  • Unscrew and remove the flywheel.
  • Remove the carburetor.
  • Using a syringe, pour gasoline into the crankcase through the hole for the carburetor in the cylinder, while monitoring the crankshaft oil seals. If gasoline flows through them, then the gaskets are worn out and need to be replaced with new ones.
  • It is better to entrust the installation of oil seals to experts.

An indirect sign of crankcase leaks are oil smudges in the oil seal area.

The chainsaw starts and immediately stalls, the reason for this behavior is hidden in the carburetor. A malfunction of the fuel pump or a malfunction of the head fuel jet will be a prerequisite for such saw behavior. The inability to operate the chainsaw after start-up, asks for a working version of the diagnostics in the service.

Our client is left with the above options for the incorrect operation of the motor have identical prerequisites, which, based on their neglect, have different manifestations. For example, with an insignificant suction of air into the engine crankcase, its operation will not change much, the motor power will fall off a little, its maximum speed will increase, and it will be able to warm up a bit more. At the middle stages of air suction, the engine will not idle and will be very warm during operation. A strong suction of air will make the work of the saw impossible, it will start and immediately stall.

In parallel with the visible manifestations of defects, for example, the chainsaw’s inoperability after starting, inside the engine at the time of its malfunction, there will be processes that irreversibly lead the saw to the most languid consequences, for example, fusion of the piston, jamming of the crankshaft.

There are a number of defects that need to be taken into account in the diagnosis, because they certainly lead to interruptions in the saw.

  1. Worn crankshaft bearings. With worn crankshaft bearings, the inevitable occurrence of beats on the main shaft, where the flywheel is mounted, is inevitable. Under these circumstances, it is unrealistic to adjust the gap between the flywheel and the ignition coil, which causes interruptions in spark formation, and unbalanced operation of the chainsaw.
  2. Impulse channel pollution. The impulse channel serves to ensure the operation of the fuel pump; accordingly, its contamination leads to incorrect pump operation, which will make the saw’s work impossible (it will start and stall immediately).
  3. Cpg wear. Usually, with excessive wear on the CPG, a decrease in compression in the chainsaw engine is observed, which will certainly affect its ability to develop speed.
  4. Pollution of fuel and air filters.

Tasks with BRIGGS STRATTON. Lawn mower.

If the first signs of malfunction of the chainsaw occur, it is worthwhile to conduct a complete diagnosis. To avoid damage to the saw and therefore improper maintenance, it is best to entrust the work to identify and eliminate motor defects. And most importantly, do not use a chainsaw with minor flaws, because this will lead to big dilemmas.

Gasoline Lawn Mower Stalls With Increase In Turnover EVDIRAL.Ru

Even if there is a great desire, a chainsaw cannot be classified as a complex device. And note again: the simplicity of the design is its corresponding feature. But, despite this fact, even such a simple device breaks, taking a lot of time to repair.

Chainsaw device diagram.

The difficulty is not the repair procedure itself, but the correctness of the damage determination. The same failure can be caused by completely different flaws. Therefore, it does not make sense to rush here to disassemble the engine or carburetor until the signs of breakdown are studied. Annotation on the operation and repair of a chainsaw here than what you may need, not just have to connect your mind.

The available failure options belong to one of two categories: damage to the accounting system of the motor with numerous groups and units here (ignition, fuel supply, exhaust, cylinder-piston) and breakdowns of other units (lubrication system, brake, tire, clutch, etc).

Scheme of electric ignition of a chainsaw.

It often happens that chainsaws disrupt the normal operation of the motor. Specifically, the search and repair of warped motor systems from users and take the lion’s share of the time. Manifestations they have are:

  • Not able to start;
  • Chainsaw stalls when it starts;
  • Job instability;
  • Usually idles, but stalls at high speeds.

If you are going to repair the chainsaw without the help of others, purposefully apply the method of exceptions. Check the possible causes of damage one at a time. They begin to inspect those for the correction of which it will take the least time.

The absolute thing that remains to do to our client is the indicated varieties of motor defects to be caused by malfunctions in the ignition system. If you have problems with a chainsaw, you should begin to find the malfunction specifically with a candle. What is there and some other meaning: the condition of the candle will tell you about the work of the fuel group by and large. Having found any problem, you need to analyze the candle, having turned it out earlier. For what purpose do they disconnect the wire and use a special key to unscrew it.

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The mechanism of operation of the carburetor chainsaw.

The dryness of the candle indicates that the source of the obstruction is not connected with the incendiary system, but without fuel water in the cylinder. The candle in this case is screwed back and taken for the analysis of the fuel group.

With significant contamination of the candles with fuel, they suggest that the latter is excessive. This phenomenon is associated with deregulation of the carburetor or with non-compliance with the launch requirements. The candle under these circumstances is cleaned and dried, the cylinder is released by shutting off the water supply and using a starter to vent the combustion chamber and get rid of excess water. Then the candle is returned back and the launch is created again.

The presence of abundant dark soot also only confirms the presence of problems in the fuel system.

Violations occur in the proportions between gasoline and oil, in a bad carb adjustment or the addition of low-quality oil. They wash the candles with gasoline, clean the deposit with a needle or an awl, use fine-grained emery paper to clean the electrodes and put them back.

Also in relation to all situations, it makes sense to control the gap between the candle electrodes. According to her vintage, it should correspond to a value from the spectrum of 0.5-0.65 mm. Checks and sealing gasket asks. If it is worn or damaged, it will provide insufficient density for the combustion chamber. As you know, it will cause a decrease in compression in the cylinder and problematic functioning of the motor.

Circuit of a two-stroke chainsaw motor.

Even when the control of the candle gives reason to believe that the damage is related to the fuel system, the candle is tested for the formation of a spark. At least to exclude suspicions in the fact that there are tasks with this issue. Do:

  • Putting on a spark plug cable;
  • Using insulated pliers, press the candle nut or thread against the cylinder;
  • Wring out the starter handle and watch if a spark arises or not.

When the spark does not appear, the candle is changed. If there is no spark when replacing the candle, then the state of the high voltage is analyzed for breakage and contact with the candle.

A failure of the spark can be caused by a malfunction of the ignition module or non-observance of the gap between it and the flywheel magnetic wire. The latter is equal to 0.4.5 mm. Especially violation of the gap becomes completely probable if the other day we did the analysis of the saw and removal of the flywheel with the ignition module. A bad ignition module is replaced.

Having completed what remains to be done to our client, the steps to verify the accounting system of ignition without detecting deviations, begin to analyze the complex of accounting programs for fuel supply.

If during the examination of the candles it was found that the liquid is not supplied to the cylinder, then the possible premises of this fact are recognized. They are:

  • Fuel is not supplied from the tank due to a clogged hole in the lid (breather), while inside the tank a vacuum appears, creating an obstacle to the exit of water;
  • The fuel filter located in the tank is dirty;
  • The fuel fluid from the carburetor does not enter; otherwise it enters in the missing quantity into the cylinder.

Oil supply for chain lubrication.

In order to diagnose the first 2 circumstances, remove the fuel hose from the carburetor and observe whether fuel leaks out or not with its use. When it flows out with a real jet, the filter and the breather do not look. If it flows weakly or does not flow at all, then it is believed that the source of damage has been found. The breather is cleaned with a needle.

Through the opening of the gulf of the empty fuel tank, remove the fuel filter with the absorbing hose with a hook-wire. From the last filter is removed and cleaned or changed to the freshest. Chainsaw manufacturers recommend changing the fuel filter after each trimester.

A weak inflow of water into the cylinder from the carburetor or non-observance of the proportions between the liquid and the air is caused by several reasons:

  • Clogging the air filter;
  • Unregulated carburetor, clogging of its channels or mesh filter.

The ordinary procedure for repairing chainsaws is accompanied by the cleaning of the air filter, since its pollution is carried out in a short time. When this happens, the air intake to the carburetor decreases, the fuel fluid at the outlet becomes very enriched, which leads to interruptions in the normal functioning of the engine.

Removing a dirty filter for cleaning is created with great care so as not to shake the dirt off in the carburetor. The filter is cleaned or washed with water with a cleaning agent, dried and returned to their place of mastery.

Centrifugal clutch of a chainsaw: 1. Friction linings, 5. Springs, 3. Drum.

Adjusting the carburetor eliminates its deregulation. As usual, this is done by means of 3 screws. Fully and at a minimum, idle speed. Adjustment is made, be sure to adhere to the descriptions in the annotation. The engine will simply break in another way. Other manufacturers of chainsaws predict a single idle screw, to exclude unnecessary interference in the performance of the carburetor inexperienced users.

When adjusting the carburetor is ineffective, they clean the channels with a network of filters in this matter, they inspect the safety of the membrane. At a chainsaw, the carburetor is considered a capricious device, therefore it should be disassembled and cleaned, understanding the full responsibility of the operation.

Trimmer does not develop speed. Another reason

The peculiarity of working with a child lies in such a question that a huge number of small parts of its components have the ability to quietly jump from their places and get lost forever. Having disassembled automatically such a naughty mechanism once, it certainly cannot be assembled back in such a section in the same way.

If there is not much or absolutely no experience in repairing a carburetor, then it is better not to take it without the help of others, but entrust this responsible event to a specialist from the service center. Carburetor cleaning there from time to time is created by means of ultrasound.

Fuel system of a chainsaw: 1. Fuel filter, 4. Carburetor, 3. Manual pump for preparatory pumping.

Often a prerequisite for a motor breakdown, especially when the engine works fine at low revs, and when it is huge, it warms up and the chainsaw stalls, there is a clogging of the spark arrester in the muffler with combustible products, which creates obstacles for real exhaust.

The repair in this case comes down to removing the muffler, its analysis and moistened cleaning of soot with the role of detergents. After washing a non-separable muffler, it is dried with a hairdryer. Since carbon deposits are composed of carcinogenic particles, it is unacceptable to dry cleanse, as toxins will enter the master’s respiratory system. After removing the muffler, the outlet opening is plugged with a cloth.

A prerequisite for clogging is the one that consumes fuel oil with an excess of oil (than just recommended by the manufacturer), base oil, as it is also called, not intended for 2-stroke engines.

Damage to the cylinder-piston group (CPG) is considered more thorough. These include: cylinder and piston wear, scratches on their walls, wear or sinking of piston rings in grooves, worn crankshaft bearings. Some of these problems cause a decrease in pressure in the cylinder and the inability to start the engine or run it fully, when the chainsaw is heated and stalled.

Air cleaning system: 1. The cover closing the filter of narrow cleaning, 3.5. The filter of narrow cleaning, 3. The cover closing the filter of rough cleaning, 4. The filter of rough cleaning.

The status of CPG is assessed by one of several methods.

  1. Removing the muffler allows you to look in the opening opening part of the end surface of the cylinder. Although the visible region is small, it nevertheless gives light that may shed light on the state of the CPG.
  2. Compression is determined, which is very informative regarding the state of the parts of the CPG. The function is done by means of a compressor placed in the hole of the candle.
  3. Using a drill, use a manual starter or a flexible shaft to crank the crankshaft, looking directly at the pressure gauge. For a saw with normal working capacity, it should be more than 8-9 atm (as it is also called 0.8-0.9 MPa). Lowering, it leads to a decrease in motor performance. A pressure of 5 atm also implies the operation of the motor, alas, already at idle.

The accuracy of assessing the state of the CPG is only possible with a complete analysis of the motor: unlocking from the crankcase cylinder and removing the piston. If it is found on the last scoring, chips or deep scratches, it is replaced. As for the cylinder, in case of damage to either its production, it is bored for the repair size. Small compression can be caused by wear or coking of the piston ring. The serviceable ring does not contain carbon deposits, it freely holds in the piston groove, adjoining the cylinder surface from the inside quite tightly.

All chainsaw repair departments contain references to damage to the lubrication complex of chain accounting programs, which are quite common. It:

  • Missing lubricant supply or non-receipt at all;
  • Oil leakage.

Trimmer stalls or suffocates when you press the gas

Coarse air cleaning system: 1. Snow filter, 4. Strainer.

When the chains are dry, they inspect and clean the channels supplying oil to the tire. Clogging them is not uniqueness.

With significant (in small quantities, it is considered normal) oil leakages, the connection of the tubes to the pump fitting for density is examined, which there are variations to subside or crack. Changing the integrity of the oil pipe (drips are not taken into account) can cause a lack of chain lubrication. Air draws in the pump, which reduces its performance. Density problems are corrected by changing tubes or sealing them.

Significant discrepancies in the lubricating group include cracks on the body of the oil pump. Then they change it.

This malfunction is caused by contamination of the area under the cover and the brake bands by grease or sawdust. In the first situation, they clean the place under the cover, in the next. They change the brake band.

Chainsaw starter device: 1. Drum, 3.2. Cable, 3. Handle, 4. Frame.

The individual elements of chainsaws that are worn by the natural method after the declared period of operation are replaced. Violation of their functions does not apply to damage. Elements with a short amortization period are the chain, the main sprocket, the tire, the components of the anti-vibration group, etc.

If in time you do not replace the elements that have developed their own shelf life, their excessive wear will badly affect other parts of the chainsaws. For example, an untimely change of the tire and the main sprocket will lead to excessive vibration, which, subsequently, will harm the crankshaft bearings.

The sprocket has a depth limit of 0.5 mm for the production of teeth. In fact, they often allow wear and tear to a depth of 1 mm, automatically, which will lead to an extra load for the crankshaft bearings and lightning-fast wear of the latter. The operation of 3-4 circuits should be the reason for changing the tire itself, since by this time its deterioration exceeds the permissible characteristics.

Trimmer STOP carburetor adjustment.

In particular, the wear of chainsaw tires in parts occurs very much, cutting with a tool in which it is required to produce more often than others. As a rule, it is the bottom of the guide rail. For simultaneous wear of parts, changing the chain, make the tire rotate 180º according to the horizontal axis.

Oil pump adjustment: 1. Adjusting screw.

Mounting the latest chain, install the latest main sprocket. Since the period of operation of the sprocket exceeds This common rumor is the parameter for the circuit itself, then 1 sprocket is used for the alternate operation of 2 interchangeable circuits. So an asterisk and chains generate their own time almost at the same time device.

When the newest chain is mounted on an asterisk that is no longer suitable for operation, then the wear of the leading links of the chain is even faster. For the economical functioning of chainsaws, you should always cooperate on the consumption of one guide bar with 2 chain sprockets and 4 chain chains.

If the chainsaw stalls when heated, you should immediately find the cause of the problems.

But you need to take this matter seriously. If there is not enough experience in the field of knowledge of the device of chainsaws, it is better to ask a specialist to do this. Successful repair!

Stalls Lawn Mower While Working. Antirun.Ru

Why does the chainsaw stall when I press the gas: background and solution

There are frequent cases where owners of chainsaws encounter their breakdown and it’s completely unprincipled which model of this kind of technology is, because the nature of breakdowns is practically the same for everyone. Well, here’s the chainsaw stalled and what’s next? Of course, you can take the equipment to special services that will fix your “iron friend” for a fee. But as they say: why pay more?

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After all, you can personally disassemble the tool and repair it, because breakage can be insignificant, and in the service you will pay a lot. But naturally, in order to bring the tool back to life, you need to be able to understand the causes of its breakdown and methods for eliminating defects. So let’s learn! In this article, you can find answers to questions regarding situations when the tool simply stalls after a specific pressure on the gas. So let’s get started.

The main elements of chainsaws

Before you begin to delve into the issues of breakdowns and repair of the tool, let’s first figure out what the chainsaw actually consists of. At first, I would like to note that this tool belongs to the category of technology, the operation of which directly depends on the gasoline engine.

It is also important that chainsaws are equipped with a single cylinder engine, and whose work is done on such a fuel as gasoline. It should be noted that, despite looking at similarities with other tools, it does not have a gearbox. And it is replaced by a typical single-stage chain transmission, by which the movement of the chain itself (saw) is made.

In fact, a chainsaw is a fairly common design, but this does not prevent it from being reliable, convenient and able to fully provide a specific uninterrupted and cyclic operation even in fairly complex criteria. This tool consists of a huge range of certain “vital” parts for its correct and productive work. This is a carburetor, a device for a specific chain tension, a tire equipped with a chain and other elements.

Before buying a chainsaw, be sure to study all the options, and choose the brand of chainsaw suitable for you.

In order to simplify the choice for you, we have compiled you a rating of chainsaws for reliability.

If you have a limited budget, then read the article about Russian manufacturers of chainsaws.

Description and possible causes of failure. Do-it-yourself troubleshooting

Chainsaws are quite reliable and lightweight designs. Therefore, if it is true to look after them and handle them based on the advice of the manufacturer, then they fail well very rarely and various breakdowns are quickly eliminated. But if you are faced with this situation and want to personally repair your own tool without resorting to the help of experts, then delve into the information below.

As a matter of fact, it is impossible to determine unambiguously and precisely the reason why the tool does not start or stalls when you press the gas, because there are many reasons for this. But we should not forget that starting from the fact that the chainsaw is armed with a simple two-stroke engine, conditions such as lubrication, fuel, spark and air are important for its effective performance.

Chainsaw Fuel Tank

As it follows, the carburetor is specifically engaged in the production of the air-fuel consistency, the filter purifies the air from dust, the ignition unit and the spark make a spark, and gasoline contains grease.

That is why the search for the circumstances of this kind of failure is necessary in alternate order, starting particularly from light and evenly moving to the complex. And this is a fundamental factor in proper repair, because the person who, without thinking, begins to parse the carburetor, puts her at risk. Because of that kind the unit must be repaired or adjusted directly in special workshops (read about carb adjustment).

    The important fact is that for trouble-free operation of the tool, it is necessary to be quite careful about fuel directly. Since if this kind of mixture is not prepared correctly, then most chainsaws simply will not start. Therefore, not every owner will guess the reason for the breakdown in the fuel. That is why in order for your tool to always work correctly, you need to use exclusively high-quality gasoline for the mixture.

Benzonase trimmer Stalls when the throttle

Benzokos trimmer Stalls when adding gas. The trimmer does not pull. Trimmer loses speed at load.

Trimmer stalls or suffocates when you press the gas

Trimmer petrol STIHL stalls when full throttle CAUSES OF THE DISEASE!

And also use only the oil that is made by the manufacturer of your tool. In addition, it is important to prepare this kind of mixture in the amount that you accurately use in one or two weeks, but no more (see the proportion of gasoline and chainsaw oil).

Since in another case, overexposure of the mixture directly in the canister will lead to the fact that it will lose all its octane properties and this will lead to significant problems with the tool.

  • The cause of the breakdown can be immediate pouring a candle mixture at a time when the mechanism is running. In order to solve this problem, it is necessary to turn out and dry the candle, but remember that you can not calcine it in any case. Excess fuel must be drained through the hole (candle), wait 20-30 minutes, then install it in place and try to start the tool again.
  • The chainsaw stalls when you press the gas due to the fact that no spark. This can happen when there is no good contact between the tip of the plug and the wire (high voltage). However, if this kind of connection works correctly, but there is still no spark, the whole cause is the ignition unit (electronic). It is important to note that this kind of spare parts cannot be repaired, so they can only be replaced. Candle inspection
  • Do not forget that by inspecting the candles you can get significant information regarding the breakdown of the chainsaw. Since if its surface is dry, the reason for this is the cylinder, which does not directly supply fuel. That is why you will have to step by step check the entire spectrum of its submission. If the candle is all in black soot, this means that the carburetor is not working properly, that is, it either supplies a lot of fuel or pours oil directly into gasoline.

    Since, for example, the Stihl chainsaw stalls when you press the gas for a simple reason, namely a simple clogging of the direct breather.

    In order to solve this kind of problem, all you have to do is disconnect the hose (fuel) from the carburetor and pay attention to whether fuel is leaking from it. Since if the mixture flows in a full stream, this means that the breather is not dirty, but if it is the other way around, then the cause of the breakdown was found.

  • Here’s another reason why the chainsaw stalls when you press the gas. Muffler. It is this detail that can interfere with the full-fledged operation of the tool in those cases when it is directly contaminated with exhaust resinous deposits. To do this, you just need to clean it.
  • Quite often, the Partner chainsaw stalls when pressed and the reason for this is cylinder piston group. Since by inspecting them, namely the piston and cylinder, it is easy to determine the cause of a tool malfunction directly by replacing them. You can also make a direct bore of the cylinder itself relative to the size of the new piston. Chainsaw piston
  • But if after inspection you find that there is no damage to either the piston or the cylinder, in this case the cause may lie directly in the rings (piston). For this kind of check, it is necessary to insert a piston into the cylinder and gently begin to swing it by means of a connecting rod. Lawn Mower If suddenly you feel backlash then the rings need to be replaced, as they have already worn out.

    Many people ask the question: why does the chainsaw stall when I press the gas? The answer may also lie in insufficient chain lubrication (see oil for the chainsaw chain), as the oil pipe may leak or the direct channels may be clogged. That is why pay attention to the chain, because if it is dry, without delay, start cleaning the channels that supply oil directly to the tool bar. After that, examine in detail the parts where the oil pump fittings are connected to the pipes. But if you notice that the oil is leaking at the joints, or if there are cracks on the pipes themselves, then in the first case, seal the leakage points with sealant, and the pipes will have to be replaced.

    Additional tips

    First of all, what you should remember when acquiring this kind of tool is that certain parts of the saw must be replaced with new ones after their useful life has expired (passport). It is for this reason that the instruction should always be at your fingertips, since everything is described in detail there.

    These details include: asterisk (leading), bus, part of the system (anti-vibration), as well as a chain. Since we should not forget that if this “stuffing” is not replaced with a new one at the right time, then these worn-out spare parts will negatively affect the rest of the chainsaw. For this reason, often enough do a check of the depth of the direct tooth extraction. Remember that it should not be higher than a week of 0.5 mm.

    To summarize

    Definitely, every thing we have purchased has its own expiration date and sooner or later it breaks and how insulting it is when the degree of breakdown is so great that it cannot be repaired. But you must admit that quite often we simply neglect the technology, and when it stops working, then we try to find ways to fix the breakdowns, turning to a huge number of services.

    But remember that even though the equipment breaks, we can extend its “life”. All that is needed is to simply look after her and keep her parts clean and tidy. And then, undoubtedly, it will serve for many more years. It is also important to use exclusively high-quality spare parts and “additives” (see nozzles for chainsaws). Then your equipment will run smoothly, and you simply forget what repair is.

    Why Stalls Gasoline Lawn Mower EVDIRAL.Ru

    The most important point when using at least some equipment is compliance with the main rules of operation and its timely service. Specifically, this approach will ensure for you the good and long-term operation of a gas mower. But all the same, from time to time unexpected situations happen, and the device why-it doesn’t want to start. In our article, we will talk about the probable causes and methods of eliminating a similar problem.

    Malfunctions that can be fixed by yourself

    When your gas mower does not start, you first need to check the fuel in the tank. If it is missing, add it to a suitable level. Often, when the device is not used for a long time, gasoline “fizzles out”, therefore it must be completely drained and refilled with a new one. A similar function must be done carefully so that the fuel does not get on the engine, as this may lead to ignition in the coming (when the motor is heated). Which gasoline is better to use, you can find out from the technical passport of the device.

    In order for the unit to start, it is necessary to pump fuel with a primer (if it is available in this model) into the carburetor and set the maximum speed. It is necessary to start the technique carefully. The starter cord must be gently pulled out to the stop, after which, with one even sharp movement, pull it towards you.

    Problems with BRIGGS STRATTON. Lawn mower.

    Does not start, Stalls, Puff-puff-puff, Dripping gas from the carburetor and other malfunctions on lawn mowers

    Repair of the BRIGGS lawn mower STRATTON

    If the engine is not working as it does not always start, stalls under load. It’s time to make out.

    A malfunction may occur if the air damper is not positioned correctly during the first start-up. Depending on the air temperature, it is completely closed or set to the middle position (above 30 ° C). Then it must be fully opened.

    Check the air filter for contamination. To do this, turn off the machine and disconnect the wire from the spark plug. Unscrew the cover and remove the filter. Rinse it with gasoline and dry thoroughly, or just put on a new one. Remember to change air filter recommended after every 25 hours of operation.

    Another reason why gas mower does not start, there may be a faulty spark plug. Perhaps it was simply filled with fuel. In this case, unscrew it, clean it and check for a spark. It may be absent when filling candles with fuel. Set the choke control handle (if equipped) to the “CLOSED” position and start the engine. If this does not help, it is better to seek help from a specialist.

    Try to constantly inspect the lower part of the device, since any damage to it may cause the engine to stall.

    If your gas mower starts up normally, but stops working almost immediately, it’s most likely that the crankshaft or piston is stuck. Another reason may be insufficient oil in the crankcase. We recommend manually moving these parts and checking the oil level with a special dipstick, maybe you can fix this problem.

    However, remember that the replacement and repair of all faulty components and components should be entrusted to professionals from authorized service centers. Never do it yourself.

    If you want to talk with a specialist and get advice on the issue, call us by phone: 7 (495) 135-29-39 every day from 10.00 to 20.00. We will provide all the necessary information.