Adjustment of a four -stroke trimmer carburetor for Hope Highway. How to find out that the carburetor…

Adjustment of a trimmer carburetor for Huter grass

Many masters use benzocouses for a long time, and at the same time do not think about the need to adjust the carburetor of the tool. When it is necessary to adjust the carburetor on a benzocos or motorcycle? If you ask such a question, then changes in the work of the motor are probably not for the better. In order not to guess, and not to miss the moment of the need to configure the carburetor, you should adhere to the following recommendations on the need for adjusting measures:

• After passing the running.in. Typically, the running-in lasts over the burning of 4-5 liters of fuel
• Когда в бак заливается топливная смесь другого состава, то есть меняется тип масла (даже его цвет) и марка бензина
• When changing weather conditions, however, this is relevant more for chainsaws, gas generators and motorcypts, which are operated not only in the summer, but also in winter
• If the lawn mower was not used for a long time. The reason for the need to adjust may be a winter break
• When fuel consumption increases
• If black fog on the electrodes of the candle is detected
• In the absence of gasoline from the cylinder or poor engine start
• If a large amount of exhaust gases are detected
• Unstable engine operation, as well as its difficult start and a “sluggish” set of revolutions

As you can see, there are enough reasons for adjusting the carburetor. Typically, masters who work for a long time for a long time, find changes in the operation of the motor, which promises the need to conduct an adjustment process. Even if they are not sure of the need for adjustment, then their extraordinary execution will definitely not be superfluous.

When you need to adjust the carburetor of a household trimmer for grass?

Adjust the built.in trimmer for carburetor grass when:

• Launch of a new engine in which 4. 5 liters of fuel mixture;
• Sudden changes in the weather;
• Changes in the air vacuum. For example, when a braid is often used in mountainous areas;
• Long simple trimmer for grass;
• Intensive increase in loads on the power unit of the mowing;
• Arbitrary unscrewing of the built.in adjusting screws of the carburetor. This becomes the cause of increased vibration of the internal combustion engine;
• Change in the quality of the components of the fuel mixture;
• Overflow of fuel by a carburetor, which leads to an increase in fuel consumption;
• Regular appearance of a thick layer of resin and soot deposit on the surface of the electrodes with a conventional three.dimensional spark plug;
• Starting the engine and its accidental shutdown or low speed;
• Fuel deficiency in the cylinder of the power unit;
• An increase in exhaust gases.

Read angular grinding machine with revolutions

The lack of timely adjustment of the carburetor threatens with serious damage to the trimmer for the grass, up to the complete failure of its factory engine.

Adjusting the gas mowing carburetor: main points

Despite high performance, mobility and unpretentiousness in work, modern motorcycles are hard to attribute to complex devices. Over time, any mechanism is worn out, and therefore the details and nodes require special attention to the owner.

One of these elements of a trimmer for grass is a carburetor designed to form a fuel mixture and supply it to the combustion chamber.

Increased consumption with proper observance of gasoline and oil proportions or engine power indicates the need to adjust the carburetor of a gasoline trimmer for grass.

Setting a carburetor trimmer for grass

The initial stage of restoring the correctness of the fuel system is the cleaning of the air filter.

Experts recommend, after every 10-15 hours, rinse it in a solution of water with detergents. Direct setup of the carburetor of the trimmer for grass is performed by three adjusting screws:

• fuel supply settings screw (“l”);
• high speed adjustment screw (“h”);
• The screw responsible for the work of the motor at idle (“t” or “AT”).

Fuel supply adjustment at minimum speed

Before starting the tuning of the benzotrimer carburetor, you need to warm up the engine to operating temperature.

To do this, we start the internal combustion engine and let it work for 10-15 minutes at idle. At the first stage, when the trimmer is running, slowly tighten the “l” screw until the appearance of intermittent work begins or until it stalls.

Next, we turn the screw for ¼ turn and check the speed of a set of maximum speed. If the lawn mower easily and quickly reaches high speeds, this will be the most economical mode.

In most of the models presented on the market, the fuel supply screw “L” is twisted clockwise, but there are trimmers for grass, where a decrease and increase in the intake of the mixture occurs in the reverse order.

Holocaulid setting trimmer for grass

Carburetor settings

The screw “t” (“at”) serves as a limiter of the reciprocating movement of the fuel damper and when it is twisted, an increase in engine speeds, and turning away leads to a decrease in the frequency of rotation of the crankshaft.

Professionals advise setting up the loop of the lawn mower so that the ICE worked a little accelerated at minimum speed, but the head with a fishing line or knife remains motionless.

If, after the manipulations of the trimmer for the grass, it is difficult to start “on the cold”, then it is enough to tighten the “T” screw for a quarter of turn and try to run the engine again.

Adjustment of the screw of maximum revolutions Motokos

After the restoration of fuel supply at minimum speeds and the idle setting, it is necessary to check the stability of the mechanism with an increased speed of rotation.

The motor adjustment at high speeds is performed in order to protect against overheating and reduce the fatigue of the hand when pressing the accelerator key. If the ICE works unstable at maximum speeds, then the “H” screw must be slowly wrapped before ensuring even and clear work.

During operation, motorcycles may need to adjust the fuel supply screw (“l”) for the optimal set of revolutions.

Benzotrommer carburetor repair tips

For example, the setting method described above may not give positive results with an overly large number of turns of the mixture supply spring and, as a result, the impossibility of optimal reduction in the level of gas supplied. To eliminate this, you can independently shorten the spring or, in accordance with the operating manual, purchase a new.

So, often the information indicated on the bank by mixing gasoline with oil differs from the instructions in the passport of the trimmer for the grass. As a result of this, a black fog can quickly form on the spark plug, which leads to a drop in power and an increase in fuel consumption.

Therefore, when preparing a working mixture, the recommendations specified in the operation manual should be followed. In most cases, the proportion for the chopped ICE is 1:25.

It is worth noting that many tool owners prefer to prepare fuel “by eye”, which will certainly lead to the rapid wear of the piston braid for grass in the case of a decrease in the portion of oil and the formation of soot on the spark plug with an increased amount of lubricant fluid.

Adjusting the gas mowing carburetor: the main points WAS Last Modified: June 25th, 2018 BY Administrator

About adjusting the carburetor motorcosa: how to set up and adjust with your own hands

Motokosa carburetor adjustment is a process that needs to be mastered for the full operation of a trimmer for grass.

Trimmer for grass is a completely simple device that can break in only a few places and demand a mechanical repair or replacement of part.

Adjustment of the carburetor device of the float.type motorcycles may require knowledge of certain subtleties. The nuances due to the model and the specifics of its functioning will ensure a clear mixing and supply regime of the fuel mixture.

What is the problem of a trimmer malfunction for grass

CHAMPION BAS carburetor, how to adjust? This is just a trimmer for floating type grass. a common option designed to mix air and fuel in the proportions provided. The main problems arising during the operation of the motor are approximately similar to the problems that overtake the carburetor in the car:

• the motor can stall immediately after it managed to start. The reason is that gasoline is supplied in insufficient quantities. This is called “poor” fuel;
• Excessively fed gasoline leads to its incomplete combustion, excessive density of the mixture and uneconomous consumption.

Important! It is necessary to regulate the carburetor under different circumstances: a change in the temperature regime, octane fuel or type of oil, after winter or end of the run.in, load or spontaneous turning of the screws from strong vibration of the body. Some owners prefer to configure the module before each use to make sure of its correct work.

Trammer device for grass

The float carburetor consists of an aluminum case with a hole (diffuser). Air injection is carried out through its passage hole, and gasoline is pulled through the fuel channels along with the air flow. This is the basis of the device. fuel chamber. The nozzle installed on top, the pump and the mixture adjustment system provide not only its saturation, but also the uniform supply.

Note! The float carburetor has been used for decades, and the main problems of all types are similar. The principle of functioning of the device depends on the quality of the mixture, and the setting is aimed at ensuring it.

How to adjust a trimmer for grass on a motorcycle

Most modules have adjustment screws, and the scheme usually helps to understand their functionality:

• L. for fuel supply of low.speed mode;
• H. the supply of fuel at high speeds and its consumption;
• T. debugging idle revolutions.

Motokos adjustment, the production of which is Chinese, can cause difficulties due to the presence of only one screw responsible for the idle.

Important! The answer to the question of how to adjust the carburetor of the Champion lawn mower, it is better to watch on the video where a professional does it.

Carburetor adjustment on the Patriot trimmer lawmaker

Adjustment of the carburetor trimmer for Patriot grass is carried out by ear screws. No verbal explanation will give a complete idea of ​​how this is done, so it is better to watch a video instruction.

After proper adjustment, the engine should increase the speed, and when working, an idle cutting tool will not turn. Everything is easy and easy!

The main problems

Malfunctions of the carburetor Motokos or trimmer for grass, despite the relative simplicity of their elimination, sometimes require a long search by excluding. The main reasons are as follows:

Flamming fuel supercharger

The most repeating breakdown is wear, rupture of the membrane. As a result, its lavation. Fuel moves are not sealed at certain stages of the engine cycle. The reasons here are as follows:

• You have been working on a motorcycle or trimmer for too long without a break;
• Poor.quality fuel was seasoned;
• Wheelled gases fall into the pulse channel.

A deformed membrane is fraught with several bad consequences:

• not enough gasoline or oxygen in the created combustible mixture;
• the launch of the motor occurs after 10 or more unsuccessful attempts;
• the engine knocks, clats during operation, and t. D.;
• The working piston is deformed.

As a result, the internal space of the fuel pump is contaminated from the side of the pulse channel.

Ground of a mesh filter

The reasons for the clogging of the mesh filter are poor.quality fuel cleaning, damage to the hose and/or the injection head.

The failure of the adjustment lever

Wear of the contact edge of the lever. a consequence of not completely purified fuel, into which grains of sand or particles of clay, metal or other inclusions that are not soluble in liquid hydrocarbons fell. A problem with fuel injection appears, the motor does not function with interruptions without load.

The inlet needle is spoiled

The inlet needle breaks due to the presence of metal and stone particles in gasoline. As a result, the saddle of the intake needle tightly adjacent to it, the fuel mixture flows. In the combustible mixture created by the carburetor, there is too much air, which is why the motor can “sneeze” during operation. Finally, the needle can stop due to poor-quality gasoline, or the unit was idle for a long time.

Clogging the adjusting space

Deposits may accumulate in the adjustment compartment. The needle does not completely cover the hole, and a lot of gasoline enters the fuel chamber. the motor pours it, perhaps floods the spark plugs. Because of this, the gasoline mixture contains an increased number of vapor of gasoline. The efficiency falls noticeably.

The adjustment membrane is spoiled

The membrane is often deformed (sometimes torn) due to continuous operation of motorcycles or trimmer for grass for several hours. If you abuse such a “shock” mode of operation, damage to the membrane occurs more often. New breakdowns will be sprinkled from a cornation of abundance:

• the piston will break;
• The number of attempts by the unsuccessful start of the engine will increase sharply;
• The fuel mixture will contain too little gasoline;
• Useful (thermal) power will drop sharply.

The inlet regulatory lever sees

Sequeling of the adjusting lever. a consequence of the incorrect installation, random flexion. Contactive line will find an incorrect position. This will violate the additional injection of gasoline.

The damper has worn out

Throttle and air conditioning are unusable due to admission to the air flow of dust, metal particles, etc. D. Damaged shutters are similar to details subjected to streaming with sand. Due to wear of the damper, the efficiency of the motor decreases, breakdowns are detected. The piston and cylinder wear out.

The shutters become unusable due to incorrect service of the air filter or its breakdown.

In some cases, this filter is simply not suitable for your model motorcycles or trimmer for grass. In the end, the shaft of the motor will suffer. its pieces fall into the engine channels, which is why the piston will be broken.

The carburetor cannot be adjusted

The fact that the adjustment is too rough (it is not possible to accurately set the parameters) are to blame for the adjustment screws. The manufacturer Motokos or trimmer for grass can put excessively thick and hard springs. You can find others either in workshops where such equipment is repaired, or purchased from any dealer or official representative of the company who released the engine for your trimmer for grass or mechanical braid for grass.

The primer broke

Primer-a manual mini-pump for forced swinging fuel into a carburetor. For a successful start of the motor, it may be necessary to pump 20 ml of gasoline manually.

Elimination methods

The list of upcoming work with the engine may be as follows:

• replacement of the fuel pump;
• disassembly and flushing of the mesh filter;
• replacement of the adjusting lever;
• It is also necessary to clean the adjustment space;
• replacement of the membrane (or the entire block where this membrane is located);
• setting in intake, graduation and needle valves;
• replacement of the damper;
• cleaning the fuel channels and diffuser;
• replacement of springs of screws;
• Change of primer.

Not all these works can be completed. It often turns out that many of them have no need if a specific malfunction is immediately discovered.

Carburetor for a trimmer for grass. How to adjust the carburetor of a trimmer for grass.

On trimmers, in addition to electric motors, gasoline internal combustion engines are installed. This mechanism requires special attention, since if it is incorrectly set up, it will either refuse to work or work with interruptions and power loss. Basically, the engine setting is to adjust the supply of fuel, and this is done using a trimmer carburetor for grass.

The standard design of any gasoline trimmer for grass must include a fuel system, the basis of which is the action of a standard carburetor. Its device and the initial principle of action are almost the same for all motos, regardless of their design characteristics and purpose.

The carburetor of the motorcycles consists of an entire.metal aluminum corps, which protects the internal components of the node from moisture, fine debris and dust. In the lower part of the case, a built.in diffuser is provided, the second name of which is “Venturi’s nozzle”. The main function of this regular part is the supply of air in the amount that is required by the fuel node to enrich the fuel. Diffusure work on a simple principle: the smaller its diameter becomes, the more intensively the air is absorbed. This is due to the fact that in the zone of the smallest diameter the level of air discharge becomes maximum.

The upper part of the built.in factory diffuser is pre.equipped with fuel tubes, according to which, under the influence of air, the fuel mixture is delayed. The remaining parts of the carburetor: regular adjusting screws and fuel pump can be located both inside and outside the carburetor.

The device of the carburetor Motokosa includes a throttle, the main task of which is to adjust the volumes of absorbed air. The larger the amount of air, the higher the rated power of the power unit of the trimmer for grass. Another damper function is to relieve the cold start of the engine. If the lawn mower is started for the first time after prolonged downtime, then the damper must be closed. Immediately after starting the motor, the part must be opened, otherwise the ICE will stall.

The carburetor for a trimmer for grass is equipped with a pulsed channel, which connects the internal cavity of the ICE crankcase with the pulse chamber of the pump. The piston located in the motor cylinder creates reciprocating movements, which leads to phased changes in pressure inside the crankcase. At the same time, a membrane is set in motion. Thus, the action of the pump is completely synchronized with the operation of the power unit.

A standard carburetor membrane takes an active part in the fuel suction. In the fuel node, it gets through the fitting. After that, the fuel passes through the built.in intake and exhaust valve, then through the mesh filter and fuel tube. Then the fuel flows next to the needle and gradually fills the camera equipped with a control membrane.

The standard valve of the carburetor trimmer for the grass is connected to the membrane using a lever. Below the built.in membrane is a cavity into which the air is absorbed through a special hole.

The carburetor for the lawn mower is working on this principle in stages. This ensures the continuous operation of the fuel unit and the uninterrupted supply of fuel in the cylinder of the standard power unit.

Когда требуется настройка карбюратора бытового триммера для травы? It is necessary to adjust the built.in carburetor of a trimmer for grass with:

• running a new engine, during which from 4 to 5 liters of fuel mixture were used;
• sharp changes in the weather;
• changes in air vacuum. for example, when a lawn mower is often used in mountainous areas;
• prolonged simple trimmer for grass;
• intensive growth of loads on the power unit Motokosa;
• arbitrary twisting of the built.in adjusting screws of the carburetor. this becomes the cause of increased vibration of the internal combustion engine;
• change in the quality of the components of the fuel mixture;
• transfusing a fuel by a carburetor, a result of which is an increase in fuel consumption;
• the regular appearance of the thick layer of tarry deposits and soot on the surface of the electrodes of the standard spark plug of the trimmer for grass;
• starting the engine and its arbitrary shutdown or slow speed;
• lack of fuel intake into the cylinder of the power unit;
• increase in the volumes of ejected gases.

The lack of timely tuning of the carburetor threatens the serious breakdown of the trimmer for the grass, up to the full failure of its factory engine.

Do.it.yourself carburetor adjustment. Periodic adjustment of the carburetor of the trimmer for grass should be performed on the served and completely serviceable power unit. Before starting the procedure, the operator must thoroughly rinse the details of the internal combustion engine and inspect its CPG for the presence of burrs or other defects. In addition, you will need to clean or change the spark plug, as well as rinse the filter elements in the design of motorcycles.

During the tuning of the carburetor, the engine of the lawn mower should operate under a certain load. It is best to install a cord of the corresponding diameter or cutting knives on a trimmer for grass.

After the installation of the cutting organs, the operator must start the ICE of the trimmer for the grass and leave it to work for about 10 minutes. If during the operation of the power unit at idle, it was noticed that the cord or knife rotates, then it is necessary to reduce the speed created by the engine. To do this, turn the lower regulator, often indicated by the letter “t”, to the left side, until the installed cutting organ is completely stopped. The further settings of the fuel node are as follows:

• The “l” regulator, located on the right, is responsible for the enrichment of the fuel mixture by air during the operation of the motor at low speeds. The position of this screw must be configured first. To do this, the operator will need to achieve maximum engine speed when working at idle. for this you need to alternately turn the “l” screw in the right or left side. As soon as the maximum revolutions are achieved, the screw will need to be turned to 1/2 turning to the left;
• The screw “t” or “LA” is necessary to adjust the idle. During its turning to the left, the power unit will decline, and when turning to the right, respectively, increase;
• The H “H”, provided on the left, is responsible for the enrichment of the fuel mixture by air during the operation of the ICE of the Trimmer for high speeds. This screw is also needed to configure the power of the motor and the volume of the consumed fuel. The setting of its position is carried out by turning the screw to the right or left sides until the maximum permissible engine speed is reached. After that, the screw “h” will need to turn 1/2 turn to the left.

Launcher of the starter and gearbox

The gearbox conveys the rotational moment from the engine shaft to the cutting tool, its gears during operation should be absolutely clean and necessarily lubricated with special lubricant.

The starter is necessary to bring a trimmer for grass to working condition, its diagnosis is to check the tension of the lace of the starter coil with the teeth of the coil, which are often destroyed at a sharp launch.

A non.working starter in a benzocos is not subject to repair, it must be replaced with a working unit, as part of a mandatory inspection or a set of repair measures.

Separate attention and care require cutting elements that must always be cleaned of dirt and mowed grass after operation. Regular inspection and thorough preparation of the device for work will help to avoid expensive and costly repair time, always be sure of the operation of the lawn mower.

The principle of operation of the carburetor of the lawn mower

The throttle dashes determines the amount of air for supply, and the engine power directly depends on this.

Fuel is sucked into the carburetor system (its membrane). Then passes through the fitting in the carburetor. Next, the liquid moves through the intake and exhaust valve of the pump. Filtered with a net. The needle valve moves into the membrane chamber.

• Air supply to the tube with an air septum (damper). The partition regulates the intensity of the air flow.
• The fuel supply system is necessarily narrowed by a diffuser to increase the flow rate.
• Gasoline through the float chamber and nozzle with narrowing. The chamber with a float regulates the temporary volume of gasoline. In the float chamber, the pressure level is neutral, and in the tube with narrowing is already low. Thanks to the pressure drop, fuel penetrates through the jetler.
• Air flow acceleration contributes to the transfer of fuel (gasoline) and its spray. As a result, the air-fuel mixture of the necessary proportion or density is formed.
• The air-fuel mixture penetrates the engine cylinder through the fuel tube.

The level of air density in the system depends on the area of ​​the open air damper. The wider the damper is, the greater the fuel consumption and power.

Simply put, adjusting the carburetor on a benzocos. creating an optimal fuel mixture due to the correct air supply.

Benzotrommer carburetor repair tips

Spring of the adjusting screw

For example, the setting method described above may not give positive results with an overly large number of turns of the mixture supply spring and, as a result, the impossibility of optimal reduction in the level of gas supplied. To eliminate this, you can independently shorten the spring or, in accordance with the operating manual, purchase a new.

Oil for gasoline trimmer for grass

So, often the information indicated on the bank by mixing gasoline with oil differs from the instructions in the passport of the trimmer for the grass. As a result of this, a black fog can quickly form on the spark plug, which leads to a drop in power and an increase in fuel consumption. Therefore, when preparing a working mixture, the recommendations specified in the operation manual should be followed. In most cases, the proportion for the chopped ICE is 1:25. It is worth noting that many tool owners prefer to prepare fuel “by eye”, which will certainly lead to the rapid wear of the piston braid for grass in the case of a decrease in the portion of oil and the formation of soot on the spark plug with an increased amount of lubricant fluid.

Adjusting the gas mowing carburetor: the main points WAS Last Modified: June 25th, 2020 by administrator

How to adjust a trimmer for grass on a motorcycle

Most modules have adjustment screws, and the scheme usually helps to understand their functionality:

• L. for fuel supply of low.speed mode;
• H. the supply of fuel at high speeds and its consumption;
• T. debugging idle revolutions.

Motokos adjustment, the production of which is Chinese, can cause difficulties due to the presence of only one screw responsible for the idle.

Important! The answer to the question of how to adjust the carburetor of the Champion lawn mower, it is better to watch on the video where a professional does it.

Malfunctions and their elimination

Electric and gasoline trimmers have typical breakdowns and malfunctions. For devices running from an internal combustion engine, this is:

• problems in the carburetor;
• engine breakdown;
• problems with the fuel system;
• breakdown of the gearbox, starter, muffler;
• blockages;
• Air filter breakdown;
• Problems with ignition coil.

Electric units have specific breakdowns:

With simple problems, you can make a trimmer repair for grass with your own hands.

Why is a trimmer not starting for grass

The most common reason that the unit does not start is the use of poor.quality fuel. The choice of gas stamps below AI-92 can disable the lawnical mower. If high.quality fuel is used, you need to look for other reasons. To do this, carefully check all nodes and systems. The checks are subject to:

The device may not start after prolonged downtime. Before turning on a trimmer for grass, you need to study well the instructions for operation. The solution of many problems is indicated in it.

If it stalls when you press the gas

There are several reasons why a trimmer for grass stalls when gas is pressed:

• The first reason is the dumping of the carburetor.
• Fuel valve.
• Fur valve blockage.
• The weakening and sagging of the carburetor cable or sagging of the fuel intake hose.

So that the described problems with the lawn mower do not arise, you need to carefully monitor the condition of the device and its blocks. Timely cleaning, washing of the unit and spare parts allow you to increase its life.

Starter breakdowns

The most difficult breakdown of the starter occurs when the rope is broken and winding it into the flywheel of the operating engine. As a result, the spring may burst and the pulley plunges. In this case, only a complete replacement of the spare part will help. This breakdown rarely occurs. often:

In this case, it is easy to fix the starter yourself. The manufacturer has prepared a step.by.step instruction for this.

REDUTOR Repair

Caring for the motorcade gearbox consists in the timely lubrication of the unit. The absence of one can lead to rapid wear of the gear and jamming of the gearbox module.

The main malfunctions of the trimmer gearbox for grass:

• severe heating of the gear component due to the use of low-quality lubrication or its absence;
• shaking of the shaft during the rotation of worn bearings;
• staggering or flowering from the bar of the gear ratio as a result of damage to the case;
• Lack of rotation of the output shaft with a knife due to wear on the teeth on the gears.

This happens due to the use of low-quality lubrication or its complete absence. Another reason for the failure of the gearbox is the operation of a trimmer for grass at the limit of its capabilities and the hit of foreign objects. To replace a faulty bearing, a gearbox is disassembled.

Features of the repair of electric models

Electric models of trimmers operating from the network have several main blocks:

Each electrimmer block has specific problems. In the mechanical part, they depend on the presence of a fishing line used as a cutting element. Reasons for the termination of work:

You can identify the problems of the electrical part of the electrocos using special tools:

To eliminate problems, a soldering lamp is needed.

• a malfunction of the power cable;
• problems with an outlet and fork;
• the failure of the control handle;
• combustion of the starter winding, engine replacement is required;
• Contact breaks can be corrected independently using a soldering lamp.

The main problems

Malfunctions of the carburetor Motokos or trimmer for grass, despite the relative simplicity of their elimination, sometimes require a long search by excluding. The main reasons are as follows:

Flamming fuel supercharger

The most repeating breakdown is wear, rupture of the membrane. As a result, its lavation. Fuel moves are not sealed at certain stages of the engine cycle. The reasons here are as follows:

• You have been working on a motorcycle or trimmer for too long without a break;
• Poor.quality fuel was seasoned;
• Wheelled gases fall into the pulse channel.

A deformed membrane is fraught with several bad consequences:

• not enough gasoline or oxygen in the created combustible mixture;
• the launch of the motor occurs after 10 or more unsuccessful attempts;
• the engine knocks, clats during operation, and t. D.;
• The working piston is deformed.

Ground of a mesh filter

The reasons for the clogging of the mesh filter are poor.quality fuel cleaning, damage to the hose and/or the injection head.

The failure of the adjustment lever

Wear of the contact edge of the lever. a consequence of not completely purified fuel, into which grains of sand or particles of clay, metal or other inclusions that are not soluble in liquid hydrocarbons fell. A problem with fuel injection appears, the motor does not function with interruptions without load.

The inlet needle is spoiled

The inlet needle breaks due to the presence of metal and stone particles in gasoline. As a result, the saddle of the intake needle tightly adjacent to it, the fuel mixture flows. In the combustible mixture created by the carburetor, there is too much air, which is why the motor can “sneeze” during operation. Finally, the needle can stop due to poor-quality gasoline, or the unit was idle for a long time.

Clogging the adjusting space

Deposits may accumulate in the adjustment compartment. The needle does not completely cover the hole, and a lot of gasoline enters the fuel chamber. the motor pours it, perhaps floods the spark plugs. Because of this, the gasoline mixture contains an increased number of vapor of gasoline. The efficiency falls noticeably.

The adjustment membrane is spoiled

The membrane is often deformed (sometimes torn) due to continuous operation of motorcycles or trimmer for grass for several hours. If you abuse such a “shock” mode of operation, damage to the membrane occurs more often. New breakdowns will be sprinkled from a cornation of abundance:

• the piston will break;
• The number of attempts by the unsuccessful start of the engine will increase sharply;
• The fuel mixture will contain too little gasoline;
• Useful (thermal) power will drop sharply.

The inlet regulatory lever sees

Sequeling of the adjusting lever. a consequence of the incorrect installation, random flexion. Contactive line will find an incorrect position. This will violate the additional injection of gasoline.

The damper has worn out

Throttle and air conditioning are unusable due to admission to the air flow of dust, metal particles, etc. D. Damaged shutters are similar to details subjected to streaming with sand. Due to wear of the damper, the efficiency of the motor decreases, breakdowns are detected. The piston and cylinder wear out.

In some cases, this filter is simply not suitable for your model motorcycles or trimmer for grass. In the end, the shaft of the motor will suffer. its pieces fall into the engine channels, which is why the piston will be broken.

The carburetor cannot be adjusted

The fact that the adjustment is too rough (it is not possible to accurately set the parameters) are to blame for the adjustment screws. The manufacturer Motokos or trimmer for grass can put excessively thick and hard springs. You can find others either in workshops where such equipment is repaired, or purchased from any dealer or official representative of the company who released the engine for your trimmer for grass or mechanical braid for grass.

The primer broke

Primer-a manual mini-pump for forced swinging fuel into a carburetor. For a successful start of the motor, it may be necessary to pump 20 ml of gasoline manually.

How to adjust a carburetor on a gas tank

Before adjustment, it is necessary to carefully clean the filters according to the maintenance in the instructions.

Further configuration of the carburetor of the lawn mower with your own hands is performed by adjusting screws. There are three of them:

Right (l). adjustment of the fuel mixture for low revolutions.

You need to find the maximum speed at idle. To do this, they slowly turn the screw (l) to the right and left.

For adjustment, the screw is rotated by a quarter of turning must be counterclockwise.

Lower (t). is responsible for adjusting the engine at idle.

For proper adjustment of the idle, it is characteristic:

• Sustainable operation of a cold engine;
• non.high speed of the hot engine;
• for a trimmer head, a large supply supply;
• Sustainable engine operation when changing positions (sharp rise or descent of a knife).

Left (H). adjusting the mixture at high speeds. (The screw is set up last).

The overall adjustment of the maximum revolutions, engine power, temperature and gas consumption depends on the left screw (H).

Setting a carburetor of a lawn mower with a last screw is performed as follows:

• Open the throttle to the full, while issuing a full gas. Turn the screw clock until the speeds fall (in this case, they are oriented by ear).
• Turn the screw as slowly against the clock until the non.uneven operation of the engine.
• Then turn back very little, barely hearing a stable, even work.
• For more visual use of skills, it is more convenient to consider the work of an experienced user:

It is interesting that from the point of view of the author of the video, the configuration (its correctness) is determined by the color of the candle, and not just by the speed and stability of the engine.

Correct tuning of the carburetor with your own hands in this case-combustion of the fuel mixture without a residue, the color of the candle should be light brown.

Setting a carburetor trimmer for grass

The initial stage of restoring the correctness of the fuel system is the cleaning of the air filter.

Experts recommend, after every 10-15 hours, rinse it in a solution of water with detergents. Direct setup of the carburetor of the trimmer for grass is performed by three adjusting screws:

• fuel supply settings screw (“l”);
• high speed adjustment screw (“h”);
• The screw responsible for the work of the motor at idle (“t” or “AT”).

Fuel supply adjustment at minimum speed

Before starting the tuning of the benzotrimer carburetor, you need to warm up the engine to operating temperature.

To do this, we start the internal combustion engine and let it work for 10-15 minutes at idle. At the first stage, when the trimmer is running, slowly tighten the “l” screw until the appearance of intermittent work begins or until it stalls. Next, we turn the screw for ¼ turn and check the speed of a set of maximum speed. If the lawn mower easily and quickly reaches high speeds, this will be the most economical mode. In most of the models presented on the market, the fuel supply screw “L” is twisted clockwise, but there are trimmers for grass, where a decrease and increase in the intake of the mixture occurs in the reverse order.

Holocaulid setting trimmer for grass

Carburetor settings

The screw “t” (“at”) serves as a limiter of the reciprocating movement of the fuel damper and when it is twisted, an increase in engine speeds, and turning away leads to a decrease in the frequency of rotation of the crankshaft. Professionals advise setting up the loop of the lawn mower so that the ICE worked a little accelerated at minimum speed, but the head with a fishing line or knife remains motionless. If, after the manipulations of the trimmer for the grass, it is difficult to start “on the cold”, then it is enough to tighten the “T” screw for a quarter of turn and try to run the engine again.

Adjustment of the screw of maximum revolutions Motokos

After the restoration of fuel supply at minimum speeds and the idle setting, it is necessary to check the stability of the mechanism with an increased speed of rotation.

The motor adjustment at high speeds is performed in order to protect against overheating and reduce the fatigue of the hand when pressing the accelerator key. If the ICE works unstable at maximum speeds, then the “H” screw must be slowly wrapped before ensuring even and clear work.

During operation, motorcycles may need to adjust the fuel supply screw (“l”) for the optimal set of revolutions.

Step.by.step instructions for repairing carburetor motorcosa

Dismantling the carburetor

Visual inspection of the carburetor will help to identify the leakage of the fuel of the air mortgage, but the main reasons for the refusal of the device lie inside. Therefore, in order to determine and most importantly, correct the breakdown of the carburetor must be disassembled.

To disassemble the carburetor, Motokos is not necessary for a lot of effort.

It is enough to unscrew the four screws on one side

And two on the other. This can be done using a regular crossbreed. Unscurately unscrew the screws and put it to the side. They may be needed when assembling. It is advisable to cover the table with a white cloth before disassembling, so that everything is visible, even the smallest details that may fall out during disassembly.

Step

We start disassembly from the fuel supply system.

We remove the primer. a bubble of swing, which is noteworthy, when assembling, installing parts of the carburetor is simply impossible. Products have characteristic castings and holes.

Step

Now remove the membrane. It is she who performs the function of pumping fuel to the carburetor.

With the vibration of the membrane, the other side exerts the pressure of the rocker of the mechanism and the needle rises, which, in turn, opens the hole and the fuel supply occurs.

Step

Remove the carburetor lid with the injection mechanism.

Step

Next, another membrane has been installed. We carefully remove it.

Step

Under the membrane there is another gasket. We also carefully remove it, in no case damage.

Step

Then we move on to the dismantling of parts from the back of the carburetor. As, earlier, we unscrew two bolts. This is already an air supply system.

There is a valve here, which, when the gas is added, opens and increases the air flow into the engine.

After its removal, the bare case remains in the hands. The carburetor is disassembled.

Determination of malfunctions and their elimination

Now it is worth paying attention to the problems that happen when the carburetor is operating and the methods of eliminating them.

Problem 1: Zaror of holes, channels and nozzles with mud

The first thing that happens is the holes and nozzles in the fuel supply system clogged with dirt. Filters installed in the tank and directly in the carburetor do not help. They still miss small particles, which cause motorcycles to fail.

Step

To do this, unscrew the bolt on the mechanism, holding it with a finger. The fact is, there is a spring and a careless action will lead to the fact that it will be lost.

Step

How to make a purge. The most effective way is the use of an ultrasound bath.

It is filled either with a special liquid or gasoline, a carburetor is placed there and under the influence of ultrasound, the so.called cavitation effect, the channels are cleaned from pollution.

The second cleaning option compressed air.

You can use the compressor available on the farm and clean the carburetor channels. However, this method is effective if the pollution is not very large.

If there is no ultrasonic bath or compressor at hand, then cleaning can be carried out in the third way using a special cylinder for cleaning the carburetor. They are sold in almost all car stores and supermarkets. The price is low and equals about 2-3, there is enough such a cylinder for 4 or 5 purges.

Step 0

Now we need to blow the channels in the case and the carburetor lid. See photo.

Step 1

Another particle of dirt can get stuck under the needle. Cm. a photo. This will also lead to the refusal of motorcycles.

Important! When cleaning the carburetor, in no case should not be used with needles, pins or wires. Even the slightest scratch will withdraw the carburetor from the system. It will have to be changed in its entirety.

Problem 2: Flaw clogging of thin cleaning

It is located on the cover of the carburetor and is a small metal mesh. Its pollution occurs very often. This is due to the precipitation of oil, additives, mud on it.

Step 2

Sometimes when disassembling the nets, a certain film is found. This carburetor lacks fuel and the lawn mower is either not starting or working with interruptions. The treatment methods are identical to the first reason: ultrasonic bath, compressor or spray can with a special solution. In addition, if the net is clogged thoroughly, you need to take a soft brush for watercolor paints, get wet into gasoline and rinse it carefully without damaging it.

Step 3

They have the ability to wear out during operation. From prolonged use, they are deformed, stretched, lose their elasticity, poor.quality fuel corrodes them, and can no longer perform their functions well. This also applies to the needle itself. The fact is that it is covered with a thin layer of rubber, which wear out during operation and can no longer enter the hole tightly. The lawn mower begins to work with interruptions. To eliminate such a breakdown, it is necessary to replace all worn parts. Where to get them?

Elimination methods

The list of future work on the engine may be like this:

• Replacement of the fuel pump;
• Disassembly and washing of the strainer;
• Replacement of the adjusting lever;
• It is also necessary to clean the space for regulation;
• Replacing the membrane (or the entire block where this membrane is located)
• Regulation of intake, output and needle valves;
• Replacement of dampers;
• Cleaning of fuel channels and diffuser;
• Replacing screw springs
• Changing the primer.

Not all this work can be done. It is often that many of them are not needed if a specific malfunction is immediately discovered.

The inlet needle is spoiled

The input needle is torn through particles of metal and stone in gasoline. As a result of the suction seat, the needle does not fit tightly to it, the fuel mixture flows. In the combustible mixture created by the carburetor, there are too many air, which leads to the fact that the engine is moving sneezing in the process. Finally, the needle can get stuck for low.quality gasoline, or the device idle for a long time.

Ground of a mesh filter

The causes of the packed driver’s low quality of fuel purification, damage to the hose and / or pump heads.

The damper has worn out

The throttle valve and air damper become unsuitable due to dust, metal particles, etc.P. With a stream of air. Damaged dampers are similar to the details that were covered with sand. Due to the wear of the dampers of the engine efficiency, the engine is reduced and the breakdown is. Piston wear and cylinder.

In some cases, this filter is simply not suitable for your brush model or trimmer for grass. In the end, the shaft of the motor will suffer its pieces fall into the engine channels, which is why the piston was torn.

Flamming fuel supercharger

Most repeated breakdowns wear, rupture of the membrane. As a result, its worthless. Fuel moves do not close at certain stages of the engine cycle. The reasons are as follows:

• You have worked for too long on a brush or trimmer without interruptions;
• Seasoned with low.quality fuel;
• Exhaust gases fall into the pulse channel.

The membrane is deformed threatens with several bad consequences:

• Insufficient amount of gasoline or oxygen in the created combustible mixture;
• The motor starts after 10 or more unsuccessful attempts;
• The knock of the engine, clicks during operation and the like;
• The working piston is deformed.

As a result, the interior of the fuel pump is contaminated from the side of the pulse channel.

The adjustment membrane is spoiled

The membrane is often deformed (sometimes breaks) through the continuous operation of shieldcorrosis or trimmer for grass for several hours. If you abuse the percussion mode of operation, damage to the membrane occurs more often. New breakdowns will fall like a horn of abundance:

• The piston will break;
• The number of unsuccessful attempts to start the engine will increase sharply;
• The fuel mixture contains too little gasoline;
• Useful (thermal) power will drop sharply.

Clogging the adjusting space

Deposits can accumulate in the department for adjustment. The needle does not cover the hole completely and a lot of gasoline the engine overflows it in the fuel chamber, perhaps also fills the spark plugs. Therefore, the gas-air mixture contains an increased number of vapor of gasoline. Efficiency drops noticeably.

The carburetor cannot be adjusted

The fact that the regulation is too rough (it is impossible to accurately set the parameters), the springs on the adjusting screws should. The manufacturer of shield.brown or trimmers can supply thick and hard springs. You can find others either in workshops where such equipment is repaired, or purchased from any dealer or official representative of the company that produced a motor for your trimmer for grass or power braid for grass.