Setting a carburetor trimmer for grass two screws. Carburetor adjustment on benzocoses…

Device and adjustment of the carburetor on benzocos and trimmers

A lawn mower or a trimmer for ICE grass requires not only a constant refueling of the fuel mixture of gasoline with oil, but also periodic adjustment of this fuel supply. The carburetor is responsible for the supply of fuel to the lawn mower cylinder, the effectiveness and performance of the tool depends on the good operation of which. If in the process of operation a faulty (abnormal) engine operation is detected, then the first step is to adjust the carburetor of the lawn mower. Before setting up a carburetor of a gasoline trimmer for grass, we will first figure it out with its design.

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.

Когда требуется настройка карбюратора бытового триммера для травы?

It is necessary to adjust the built.in carburetor of a trimmer for grass with:

• Adjustment of the carburetor VAZ 2107 with your own hands

• 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.

Principle of operation

The order of injection and filtering of fuel in the engine of the lawn mower is next.

• With the help of a throttle, the amount of air supplied to the diffuser is set. The more air is supplied, the more oxygen needs gasoline for combustion, and the greater the power released in the form of heat. The energy of the heat is further converted into a mechanical.
• The membrane pump pumps the required amount of gasoline.
• Next, gasoline passes through the engine fitting.
• Fuel passes through a retractable and exhaust valve.
• Fuel is filtered using a mesh filter.
• Through the needle valve, it also enters the camera with the membrane.

The stages of the carburetor is as follows.

• Air enters the pipeline with an air conditioning. The damper sets the desired air flow intensity.
• The diffuser is narrowed in the node of gasoline’s injection. this is necessary to give a higher air flow rate.
• Fuel passes through the bastard compartment and passes the jet, falls into this narrowing of the tube. The float compartment doses the supply of gasoline. In this compartment, the pressure is in a state of equilibrium. In a narrowed tube, it decreases. Due to the difference in both values ​​of pressure gasoline and passes through the jetler.
• Accelerated stream sprays gasoline, converting it into aerosol pairs. The resulting gas-air mixture is ready for a rowing in the combustion chamber.
• Having passed through the fuel pipeline, this mixture is in the cylinder of the carburetor.

Conclusion: To set the required power, first of all, you will adjust the rate of combustion of fuel using an air damper. If the gap is too small, and the oxygen in such a mixture is less than 10%. the fuel does not burn, therefore, the engine will not start or immediately staller.

In the case of buying a Chinese trimmer for grass, it is worth considering that it differs little from European- the same 2- or 4-stroke engine and drive.

However, the quality of the details is saved, forcing the consumer to change them more often. Check what compatible details offer non.Chinese companies for your device.

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.

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.

Carburetor device

The lawn mower (lawn mower) contains the basis. the case of aluminum, which houses the rest of the parts, coordinated as a whole. The carburetor housing has a diffuser. a move with internal channels through which air is pumped.

The larger the cross section of the diffuser, the more actively, oxygen is supplied along with the air-an oxidizing agent in which fuel burns (gasoline mixture).

Channels branching from the course of the diffuser deliver fuel, with which the heated air is mixed, which carries away the vapors of gasoline. Outside the main compartment of the carburetor are placed:

Principle of operation

The flow of air entering the tube with a throttle fabric intensifies or weakens depending on its position. From the fuel chamber, gasoline enters a special tube through a jetler. Float. a device that regulates the supply of fuel, its level determines the volume. Gasoline supplied through a jickler, under the influence of the pressure difference, is mixed with air. So it turns out a fuel mixture for engine operation.

note! The wrong fuel composition is due to a lack of gasoline or air. This means that you need to configure the throttle or the fusion position. The motor can stall due to the jet, but this is a more serious breakdown.

Adjusting the carburetor of the lawn mower

You can adjust the carburetor of the lawn mower with your own hands

lawn mowers, like the entire bench tool for the garden, is not difficult to maintain equipment. Repair, set up on your own and it is necessary. For example, adjusting the carburetor of the lawn mower with your own hands is the matter of five minutes.

The carburetor from the lawn mower is a node in the power supply system. In it, like any carburetors, there is a process of mixing air and fuel (gasoline) for further supply to the motor cylinders.

In this process, the main thing is the correct proportion of fuel and air, for which the carburetor is regulated.

The main problems and malfunctions of the carburetor.

Mesh filter. There are only two problems with this element more often:

In order to find out the cause of the breakdown, the fuel filter lid is unscrewed to extract the mesh filter. If dirt just accumulated on it, then flushing in gasoline or purging will help.

With visible damage on the mesh filter, you must definitely put a new. There may also be damage to the fuel supply pipe (during the repair they practice checking this element).

The starting device of the carburetor in most cases does not function due to blockages. Should be used for flushing acetone or the same gasoline.

Purging parts of a carburetor with click of compressed air. permissible and convenient repair practice.

The hull of throttles, the ligaments of the parts of the carburetor, the intake or graduation pipeline. all of the listed parts are subject to depressurization. You can probably check in a primitive way. spread the problem area with soap foam.

How the benzotrimer carburetor works and works

All varieties of carburetors produced by manufacturers of benzotrimmers are almost unrealistic to cover. But, since the design of this module, as well as its principle of operation, is largely similar between different models, you can make a generalized description of the processes occurring in the carburetor. This information will allow the user to understand the principles of the device, eliminate the malfunctions and properly operate.

The basis of the carburetor trimmer for the grass is an integral aluminum case. Below is a diagram of this block.

Below it, there is a diffuser, which is also called Venturi’s nozzle (18). Air is absorbed through this nozzle with a motor.

The smaller this hole, the higher the air flows, and the higher the level of its vacuum in the zone with the smallest diameter.

In the upper part of the diffuser are fuel channels (11,12). Through these channels, the air flow, adds gasoline. The fuel pump itself, nozzles and a system used to adjust the supply of a mixture of fuel with air can be built.in or installed outside.

The throttle flap (9) regulates the amount of air sucked into the carburetor. Its number affects the power that the engine develops. Damper (7) serves for cold launch. It must be closed if you are going to start the unit. After the engine has launched, it needs to be opened, otherwise, the motor will immediately stall.

The pulse channel (1) connects the impulse chamber of the pump to the engine card, namely, with its internal volume. The piston located in the cylinder, producing reciprocating movements, sequentially changes the pressure in the crankcase (vacuum or increase in pressure). Pressure drops make the membrane move (4). Therefore, the operation of the pump is synchronized with the operation of the engine.

The gasoline leaks from the tank occur precisely with the participation of the membrane (4). Gasoline enters the carburetor through the fitting (2). Further, its path lies through the inlet valve (3), the release valve (5), through the mesh filter (6), the fuel channel (10), passes by the needle (14) and fills the camera (16), which has a control membrane (18).

Valve (14) by means of a lever (17) connects to the membrane (18). The cavity that is located below the membrane is connected to atmospheric air through the hole (19).

The device is functioning as follows.

• During the suction tact, a vacuum is created in the diffuser. This fact causes air leaks. The amount of air entering the carburetor chamber, as well as the engine power and the amount of its revolutions and the amount of its speed, depends on the position of the throttle.
• At this time, a fuel from the chamber (16) is sucked through the nozzles (11,12), after which it is mixed with leaking air. Gasoline, mixing with air, begins to spray. Thus, a fuel mixture is created.
• The finished mixture enters the cylinder, where it is compressed by the rising piston and is ignited at the verge of its point from the spark, the spark plugs produced.
• Since the volume under the control membrane (18) is connected to atmospheric air through the canal (19), the membrane goes up, opening by means of a lever (17) valve (14). After the valve is opened (14), a new portion of fuel enters the camera (16).
• After the camera (16) is filled, the membrane (18) returns to its original position, and the valve (14) is closed.

Further, during the operation of the motor, all of the above processes are repeated. To adjust the number of fuel entering the diffuser through the nozzles, a screw is used (13). A screw (15) is also used to set up idle speeds. When twisting the regulators, the fuel mixture is enriched, and when twisting, the mixture impoverishes occurs. Also, in some models of carburetors, you can adjust the idle speed by the amount of the engine by the number. It is usually located on the outside and, when twisting, rests on the lever, fixed on the axis of the throttle.

Thus, using 3 adjusting screws, you can achieve maximum engine performance, as well as set up its uninterrupted operation at any ambient temperature, and even in mountainous areas.

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Increased fuel consumption and the rapid formation of soot on the candle mowing candle when using a properly prepared fuel mixture indicate the need to adjust the carburetor. It describes the configuration of trimmers with carburetors with one screw for adjusting the supply of fuel.

The main problems and malfunctions of the carburetor.

Mesh filter. There are only two problems with this element more often:

In order to find out the cause of the breakdown, the fuel filter lid is unscrewed to extract the mesh filter. If dirt just accumulated on it, then flushing in gasoline or purging will help.

With visible damage on the mesh filter, you must definitely put a new. There may also be damage to the fuel supply pipe (during the repair they practice checking this element).

The starting device of the carburetor in most cases does not function due to blockages. Should be used for flushing acetone or the same gasoline.

Purging parts of a carburetor with click of compressed air. permissible and convenient repair practice.

The hull of throttles, the ligaments of the parts of the carburetor, the intake or graduation pipeline. all of the listed parts are subject to depressurization. You can probably check in a primitive way. spread the problem area with soap foam.

The device of the carburetor of the lawn mower

The basis of the carburetor of the lawn mower is an aluminum corps. It has a diffuser (hole with internal contours). Air is pumped through this hole. The speed of oxygen (air) is dependent on the cross.sectional (passage opening) of the diffuser.

The diffuser is equipped with fuel channels. Fuel is drawn from them using air flow.

The device of the carburetor of the lawn mower

The basis of the carburetor of the lawn mower is an aluminum corps. It has a diffuser (hole with internal contours). Air is pumped through this hole. The speed of oxygen (air) is dependent on the cross.sectional (passage opening) of the diffuser.

The diffuser is equipped with fuel channels. Fuel is drawn from them using air flow.

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.

Carburetor malfunctions and their elimination.

The main element of the car drive system is the carburetor. Characterized by subtle setting and excessive sensitivity to various external influences. Before changing and modifying it, it is necessary to find out whether this is the cause of the engine malfunction (or its unstable operation). If it is obvious that the carburetor is faulty, then the priority task is to a visual assessment of its details. An external inspection of this part of the car will help assess the degree of damage and focus on further actions.

• The most common carburetor problem is the lack of idle. This can be solved quite simple: just check the condition of the electromagnetic lock valve. In most cases, it flies out of the connector, causing a malfunction of the motor installation of the car.

• Another problem that can be encountered when checking a carburetor is a high engine rotation frequency at idle. The reason may be the wedge of the throttle axis. It is located in the second chamber. Damage can be eliminated by changing the position of the damper lever relative to the adjustment screw. Simply put, this damping lever should completely close the nest in the chamber when the car is idling.

Read how to set up a carburetor on a Stihl chainsaw

The above malfunctions are the most common. They can be removed by visual inspection, without resorting to serious intervention in the design of the carburetor. If the cause of the failure is not in this case, a comprehensive diagnosis is required. The strange operation of the car engine system at idle can be caused by a meager composition of the working mixture. This can be determined by ear. the speed will swim. If you look into the first carburetor chamber, you can see gasoline drops on its walls. The gradual enrichment of the mixture leads to the stabilization of the engine (which is also determined by the ear) and the absence of drops in the chamber.

Typical malfunction of the carburetor. transferring fuel into the float chamber.

• Another reason for an unstable engine in the carburetor compartment (float chamber) may be a high level of gasoline. This error occurs when the foam holder fails or the shut.off valve is damaged. This can be determined by the way the warm engine starts. If the launch is difficult, then most likely you need to evaluate the fluid level in the float chamber. This is due to the fact that after stopping the engine, the fuel is under pressure (due to the operation of the fuel pump). He immediately rises into the float chamber and drowses it, entering neighboring chambers. To avoid this problem, you need to check the carburetor filter more often (it is located right under the plug).

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?