Gasoline gasoline Husqvarna adjustment of the carburetor. How to configure it correctly…

Frequent trimmer malfunctions for Husqvarna 128r grass

Deciphering symbols

Two-Stroke Carburetor | Adjustment Screws | How they Work?

Conditions ………………… 2 …………………………………………………………………………. 3 Before launch, follow the following: …………………………………………………………………………. 3 that there is something? What is there?……………………………… 4 General Security Proposits important information 5 Operator protection products …………. 5 Protective devices of the tool ………………………………………. 6 Cutting equipment ………………… 10 Sub.Book Assembly of the handle …………………………………………………………………. 13 Fixing belt fastening the holder of the shoulder belt …………………………………………………………………………………………………………………. 13 fastening of the knives and head of a trimmer for grass …………………………………… 14 fastening of the shield, knife and disk for clearing. 15 installation of protection and trimmer head ………………………………………………………………………. 15 Rules for the handling of the safety rule during refueling ……………………………………………………………………………………………. 16 Preparation of the fuel mixture ………… 16 Refueling …………………………………………………………………………………. 18 Latin and stop Verification before launch. 19 launch and stop …………………………. 19 Method of work General working instructions. 25 muffler …………………………………………………. 26 Speak of ignition …………………………. 27 Air Filter …………………………… 28 Angular Reducer …………………………………………………………………. 28 Sharpening of knives and disks ………………… 28 Schedule of maintenance. 29

Specifications …………. 31 EC guarantee on compliance (

Before starting, follow the following:

Please, carefully read the operating instructions.

circumstances should not make changes to the initial design of the machine without the permission of the manufacturer. Always use only original spare parts. The use of unauthorized changes and/or accessories can lead to serious injury or death of the operator or other people.

Custosens or trimmer for grass, which are used carelessly or incorrectly, can become dangerous and lead to serious injuries of the operator or others. You must definitely know and understand this instruction.

Prolonged impact of noise leads to incurable violations. Therefore, always use the recommended protection against noise.

Husqvarna AB is constantly working on the improvement and development of its products and therefore reserves the right to make changes to form and design without preliminary warning.

Device and principle of operation of the carburetor Husqvarna

To successfully configure the carburetor of the Husqvarna chainsaw, you need to know its device and understand how it works. In fact, everything is not as difficult as it seems at first glance.

The saw carburetor has a built.in fuel pump, which is responsible for transporting a mixture of gasoline with butter, as well as a diaphragm, a needle valve with a rocker. Their joint work allows you to dose the supply of fuel into the main chamber and two shutters.

One of the shutters is designed to adjust the fuel supply to the cylinder when pressing the gas, it is called throttle, the second is responsible for restricting the air filter air supply to facilitate the launch of the Husqvarna cold chainsaw. At the moment when the operator blocks the air damage to the carburetor, the fuel mixture is impoverished and its supply to the cylinder is increased, due to which the chainsaws are launched much easier than when the cold launch is carried out in normal mode.

The Khuskvarna carburetor is involved in the Khuskvarna valve, which sprays fuel and prevents the flow of air into the main chamber. Often, problems during the operation of the saw can be caused by defects of this particular element. For example, the valve, if the chainsaw is improperly stored, can stick, the fuel supply will stop, which will make the engine impossible to operate. Also, no violations in the work of the nozzles can cause air leaks in the main fuel chamber of the carburetor. In such cases, adjustment of the position of the adjusting screws will not correct the situation, you will need to repair or replace the assembly.

For setting the quality and amount of the mixture, as well as the number of crankshaft revolutions in idle, three adjusting screws installed in the carburetor case:

  • screw (l). regulates the amount of fuel in low and medium.speed mode;
  • (H). is responsible for traction at high speeds and their number;
  • (T). changes the position of the throttle ditch, thereby regulating the amount of fuel mixture entering the cylinder and the operation of the tool engine in idle mode.

How To Install A Purge / Primer Bulb Properly

Screws (l) and (h) cannot be adjusted without certain knowledge and experience. Incorrect setting of quality and the amount of fuel mixture can lead to the fact that the engine will stop working or work incorrectly, which will lead to its rapid wear or even jamming.

Husqvarna 125 r trimmer adjustment of a trimmer carburetor video

Modern chainsaws have a complex system and consist of several main nodes, which at times require maintenance and adjustment. Next, let’s talk about how to adjust the carburetor on the Husqvarna chainsaw.

Troubles, the solution of which is the adjustment

carburetor, a lot.Husqvarna chainsaw carburetor adjustment is needed when defects arise as:

  • high speed revolutions;
  • strong smoke during the tool;
  • difficult to start the cool in other words of the hot motor;
  • Lack of traction and low.reduced speed.

This is not a complete list of troubles, the solution of which will be the configuration of the carburetor Khuskvarna. In a number of all kinds of cases, setting the properties and amount of fuel consistency is carried out after the overhaul of the motor is different in the course of a planned chainsaw.

AB advises to adjust the carburetor before and after the run.in.

To successfully conduct the option of the Husqvarna chainsaw carburetor, you should know its device and realize how it works. In fact, what remains to make our client is not at all as difficult as it might seem.

The saw has an integrated fuel pump, which is responsible for transporting the consistency of gasoline with butter, also a diaphragm, an needle.shaped valve with a rocker. Their joint work allows you to dose the supply of fuel in the main camera and two shutters.

One of the shutters was created to adjust the supply of fuel to the cylinder when pressing the gas, it is called throttle, the 2nd-is responsible for limiting air from the air filter to facilitate the launch of the cool chainsaw of Husqvarna. At the moment when the operator blocks with the help of the air damage to the air supply to the carburetor

, The fuel consistency is impoverished and its supply to the cylinder is increased, through which the chainsaws are launched much easier than in this case, when the cool start is carried out in ordinary mode.

Carburetor adjustment Motokosa Husqvarna 125, 128

The Khuskvarna carburetor is involved in the Khuskarna Khuskvarna valve, which sprays fuel and prevents the flow of air into the main camera. Often, obstacles during the operation of the saw are caused by the shortcomings of this element. For example, a valve, with incorrect storage of a chainsaw may be stuck, the fuel supply will end, which will make the motor work unrealized. Also, violations in the work of the nozzles will be a prerequisite for the air leaks in the main fuel chamber of the carburetor. In this embodiment, adjustment of the position of the adjusting screws will not correct the situation, the repair or change of the node will come in handy.

Three adjusting screws installed in the carburetor case are responsible for setting the properties and quantity of the consistency, and the number of crankshaft revolutions in idle:

  • screw (l). regulates the number of fuel working in low and medium.speed mode;
  • (H). is responsible for the craving at large speeds and their number;
  • (T). changes the position of the throttle ditch, which regulates the amount of fuel consistency entering the cylinder and the operation of the tool engine working in idle mode.
gasoline, husqvarna, adjustment, carburetor

Screws (l) and (h) cannot be adjusted, without certain knowledge and experience. The incorrect setting of the properties and amount of fuel consistency leads to the fact that the engine does not work as it is also called incorrectly, which will lead to its rejection or even jamming.

Ordinary slotted screwdriver for adjustment is not suitable, t. to. Husqvarna chainsaw adjusting screws

They have a different section. We will have to purchase a special, this feature of the repair of the chainsaws of Husqvarna, they created our client to so that you can repair the saw exclusively in the special service of Husqvarna.

Husqvarna carburetors settings (factory)

Husqvarna carburetor is adjusted in the same way how carburetors are set up on the chainsaws of other manufacturers.

Before adjustment itself, it is necessary to carry out a complete diagnosis of the saw and make sure that there is no difficulty supplying fuel and air leaks to the chainsaw crankcase. You also need to make sure the air filter is clean and, if you wish, replace it to a new.

  • Husqvarna carburetor factory options are installed on a drowned out saw.
  • Starting the motor and heating the saw for a few minutes.
  • With the help of rotation of the screw (l) clockwise, there is a position when the engine develops the highest turns, after which the screw must be unscrewed 1⁄4 ago. If, with all this, the chain of the chainsaw is spinning, then you need to reduce the speed of the idle speed, by adjusting the position of the screw (t).
  • Subsequent step, this is the power adjustment at the greatest revolutions and the adjustment of their number. For this purpose, the tachometer connects to the focused chainsaw, the gas handle is squeezed to the full, after which the testimony of the tachometer is checked. If the value of the largest revolutions differs from the largest amount recommended by the manufacturer, then using the configuration of the screw position (h) the tachometer readings are carried out to the norm.

Read Mini Drill with revolutions

After adjustment, the chainsaws should simply type and drop speeds, work measuredly at low and high speeds. If the saw chain after adjusting the carburetor control screws is idle, this is a sign that the setting is carried out incorrectly and you need to adjust the screw position (t).

Also, when adjusting the Husqvarna carburetor, it is worth taking into account the time of the response of the chainsaw to rotation of the screws. The options do not change immediately, within 5, 10 seconds.

Diagnosis of a carburetor on chainsaws and motorcycles (accelerator, nozzle)

One of the characteristics of an incorrectly conducted adjustment, this is strong smoke during the operation of the saw, which indicates a large amount of fuel entering the combustion chamber. When such a situation appears, it is necessary to adjust the position of the screw (l).

Standard factory options for the Husqvarna carburetor, this position of the screws (H) and (L) in which serviceable chainsaw should be guaranteed to start. For Husqvarna tools, this is one and a half turns from one hundred percent twisted screws (H) and (L). During the adjustment, you must first install the screws in the standard position, then start the chainsaw and conduct accurate power adjustment, the number of the highest revolutions and idle speeds.

Make a carburetor to adjust

The module configuration cannot be repaired, and the replacement is not required. Honda carburetor Carburetor cleaning. In this case, the repair kit of the carburetor for a gas trimmer for grass is not required.

  • L. Initially regulated because it is responsible for supplying fuel at low speeds;
  • N. is responsible for supplying gasoline at high speeds, as well as for fuel consumption and temperature;
  • T. With its help, simple debugging occurs.

There are options, as a rule, a carburetor of a Chinese gasoline scraper, when only one screw on the case remains to adjust. To adjust the idle. This does not mean that the module is configured automatically. This means that it will be difficult to even carry out this type of repair as a debugging. The photo shows the adjustment of the Chinese gasoline carburetor.

  • The module is set up only when the engine is heated: for this, the device first turns on for 10 minutes. Adjustment of the carburetor if the head of the lawn mower operates at idle, immediately start adjusting: turn the t with the clockwise, until it stops rotating.
  • Adjustment starts with a screw l. The screw rotates to the left and right until it finds its position in which the idle speed does not become maximum.
  • Then turn the screw and turn it counterclockwise. This will be his work position.
  • The idle action should be adjusted by turning counterclockwise to increase speed, and clockwise. decrease. Its setting is to achieve a regime in which sufficient rotation is performed before the mower begins to rotate. In this case, the engine should work stably in different positions.
  • The position of the screw L is determined by the last. At maximum speeds, a trimmer for grass should not work for more than 10 seconds. The throttle opens, the screw rotates clockwise, very slowly, until the rotation speed decreases to the ear level.
  • Then the screw also slowly rotates counterclockwise until the engine starts to crawl with failures. Then the screw turns back the clock, until the engine rests normally.

We offer to familiarize yourself with shoes for extremely low temperatures if there is a tonometer and if the product is the recommended speed of rotation in the product passport, correction can be made more accurate, focusing on the ear, but on the testimony of the device.

gasoline, husqvarna, adjustment, carburetor

Please explain. In the regulation section of paragraph 5 of the screw l l? Should I read the screw a? Thanks

Tell me the initial position of the screws h l la

Tell me the initial position of the screws h l la

Maintenance of the chainsaw Husqvarna 137

Service and repair of the chainsaws require special training. The manufacturer recommends contacting a specialized service center for professional repair.

The motor on the chainsaw does not start. The reasons:

The motor is not working hard at the time. The reasons:

The motor does not gain momentum, loses power or stops, unable to withstand the load. The reasons:

Smoke comes from the motor. The reasons:

Air filter of the chainsaw Husqvarna 137

Dirty air filter reduces engine power and increases fuel consumption and excretion of harmful fumes. It is necessary to clean it after every 5 hours of work.

The tire is necessary for maintenance or replacement if

It is necessary to replace the tire if it is deformed or the internal grooves of the tire are worn out, it is necessary to clean the openings for supplying oil every 5 hours of operation. Regularly and carefully remove pollution from the tire groove with wire or putty knife.

Change the spark plug every year using Champion Rcj7y. The correct gap is 0.5 mm.

conducts planned and urgent repairs, as well as maintenance of chainsaws in accordance with the recommendations of manufacturers of technology.

When you need to adjust the carburetor?

The reasons why the adjustment of this node will be needed can be listed for a very long time.

Among the main malfunctions, the following can be distinguished:

  • An increase in revolutions at idle;
  • The appearance of a large amount of smoke during operation;
  • Worsening starting properties;
  • Insufficient capacity of the tool when cutting.

This is not a complete list of all known malfunctions. Sometimes such a procedure as adjusting the carburetor on the Husqvarna chainsaw is necessary after the overhaul of the power plant or after maintenance.

The developers of Husqvarna 137 write in the passport that the carburetor adjustment must be carried out before and after the instrument is running.

Adjust the carburetor yourself

Gas braids, like all gasoline garden tools, are not easy to serve. It can and should be repaired, configured without outside help. For example, carburetor adjustment gasoline braids for herbs. Right 5 minutes.

Board.cutting carburetor is a knot in the energy system. In it, as in all carburetors, there is a process of mixing air and fuel (gasoline) for a future supply to the engine cylinders.

The main thing in this process. the correct proportion of fuel and air, so the carburetor is regulated.

Repair of the carburetor itself

If, during the complete diagnosis of Husqvarna chainsaws, carburetor defects were found, some of them can be eliminated without contacting the Husqvarna AB service center. For example, you can:

  • replace the gaskets under the lids of the main camera and the fuel pump;
  • Clean or replace the filter;
  • replace the membrane of the main camera or needle valve;
  • repair the fuel pump membrane.

Gaskets, diaphragms and rogue needle are in a repair kit available for each model of the Husqvarna chainsaw carburetor.

In addition, if you have some experience, you can try to repair a faulty valve nozzle, but you cannot guarantee a positive result when trying to repair the nozzle, if it is faulty, manufacturers recommend completely replacing the carburetor.

Before you remove the carburetor with Husqvarna, it is necessary to clean the saw using a compressor, since dirt can interfere with quality repair. Then you need to open the top cover of the chainsaw, remove the air filter, disconnect the connecting rods from the air control levers and the throttle. Then unscrew the screws of the carburetor mount.

It is easy enough to remove the carburetor housing for repair. The cover of the main chamber is held by four screws that can be removed with a regular screw, the fuel pump cover is fixed with one wide screw.

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Below is a video that explains how to repair a carburetor without contacting the Husqvarna service center.

Tools necessary for work

Before starting the tuning of the carburetor is Khuskvarna, you need to take care of the presence of the whole tool that may come in handy. To carry out this type of work yourself, you will need:

    screwdriver for adjusting the screws (h) and (l), it can be bought in specialized stores;

An ordinary slot screwdriver for adjustment is not suitable, t. to. Husqvarna chainsaw adjusting screws can have a different section. We will have to purchase a special, this is the peculiarity of the repair of the chainsaw of Husqvarna, they did everything so that the saw could be repaired only in the specialized service of Husqvarna.

Algorithm and description of the Husqvarna carburetor settings

Husqvarna carburetor is adjusted in the same way how carburetors are set up on the chainsaws of other manufacturers.

Immediately before adjustment, it is necessary to carry out a complete diagnosis of the saw and make sure that there is no difficulty supplying fuel and air leaks to the chainsaw crankcase. You also need to make sure the air filter is clean and, if necessary, replace it with a new.

  • Husqvarna carburetor factory settings are installed on a drowned out saw.
  • The engine is launched and sawing the saw for several minutes.
  • By rotation of the screw (l) clockwise, there is a position in which the engine develops maximum speed, after which the screw must be unscrewed by 1⁄4 back. If at the same time the chain of the chainsaw rotates, then it is necessary to reduce idle speed by adjusting the screw position (t).
  • The next stage is the power adjustment at maximum speeds and adjusting their number. To do this, the tachometer is connected to the focused chainsaw, the gas handle is squeezed to the full, after which the testimony of the tachometer is checked. If the value of maximum revolutions differs from the maximum amount recommended by the manufacturer, then by changing the position of the screw (h) the testimony of the tachometer is carried out to normal.

Which tool is required

First of all, it is necessary to prepare a tool for adjusting the carburetor of the chainsaw. A set of screwdrivers and rock keys, a special cleaning composition that dissolves corrupt and garbage will be required.

It is better to disassemble on a table or workbench. On part of the table, lay the flap of clean, preferably light and plain fabric, on which the parts removed and a tank for washing will be laid out. Optimal if it is an ultrasound bath.

Technical characteristics of the chainsaw “Husqvarna 240 16-3 / 8 9665112-26

This model costs 13,000. and has an air purification system, which reduces the wear of the filter. The engine in the device is quite reliable and powerful, it contributes to an economical fuel consumption, reducing the number of harmful emissions. During the launch, the chainsaw must be warmed up. As soon as the cold tool is launched, you should allow it to work for 30 seconds. Then you can use and release the throttle lever. This will prepare a tool for work.

In the event that the chainsaw does not develop turns or, on the contrary, works at excessively high, the carburetor can be configured without removing.

But if the chainsaw does not start, the turns freeze at the same level or it works unstable. Setting up a chainsaw carburetor will not change the situation. It must be removed for cleaning or replacing parts. It is necessary to act in the following order:

  • By unscrewing the holding mounts, remove the upper saw cover.
  • Remove the gasket and part of the air filter by unscrewing the bolts or clicking the mount.
  • On the right on the carburetor is the fuel hose. Remove it along with the control of air damper control.
  • Remove the carburetor from the fasteners holding it.

Dismantling the carburetor is performed in accordance with the instructions supplied with the kit. When disassembled with particular caution, it is necessary to put the parts on a pre.prepared fabric. Because of small dimensions, there is a risk of losing components when disassembling and washing.

All parts obtained in this way are washed in a special liquid, dried and wiped with a fabric that does not leave a pile.

Channels, tubes and nozzles blow out with compressed air, if possible, after washing them in an ultrasound bath.

Champion chainsaw adjustment »Chainsaw carburetor

The carburetor has three adjusting screws: l. the screw of low speed h. the Gikler Gikler screw T. the idle adjustment screw adjusting screws ECHO3500

Using the H and L screws, the ratio of the fuel and lubricants and air is regulated by the opening of the throttle. When twisting the screws (clockwise), the mixture is impoverished. low speeds, when unscrewing the screws (counterclockwise), the mixture is enriched, the revolutions are growing.

Screw t regulates idle speed. When turning clockwise, the number of revolutions increases, counterclockwise. decreases.

The main setting of the carburetor is made at the manufacturer when testing the saw. The carburetor is adjusted to a richer than the optimal mixture. Such adjustment should be saved at the first hours of the saw. Then the accurate adjustment of the carburetor is made. When the chain rotates at idle, it is necessary to turn the screw T counts the clock until the chain stops.

Accurate adjustment of the carburetor can only be carried out in a preheated state by specialists with special equipment (revolution meter).

First adjusted the screw l, then h and at the end of the screw t.

First you need to find the highest stories of the idle, slowly turning the screw L clockwise (or against). After finding the position of the highest revolutions, it is necessary to turn the screw L to 1/4 turnover counterclockwise. If the chain rotates at the same time at idle, turn the screw T forgiving the clockwise until the chain stops.

Screwing N affects the power and frequency of speed. Adjusting the carburetor to the depleted mixture leads to excessive turnover and the failure of the saw.

After warming up the engine at full speed for 10 seconds, turn the screw N by 1/4 turning counterclockwise. Let the engine work about 10 seconds. Check maximum speed with a tachometer. Repeat the operation in case of maximum turnover of the passport. The engine should operate on the sound as a four.stroke. With a too poor mixture, the drank squeals. When adjusting the carburetor on a too rich mixture, the muffler begins to smoke.

For optimal adjustment, you need to contact a specialist that has access to the tachometer. Accurately adjusting the idle speed, by a screw T, after adjusting the screws L and H. If you need an adjustment of the number of revolutions of the idle, then when the engine is running the engine, you need to rotate clockwise until the saw chain starts to rotate. Then you need to turn the screw back counting the clock until the chain does not stop spinning. The number of revolutions of the idle speed is set correctly if the engine works evenly all positions with a sufficient speed of revolutions when the chain begins to rotate.

The carburetor is adjusted correctly if the engine accelerates immediately and works as four.stroke on full gas in the noise. The adjustment of the screw l on the too poor mixture leads to a difficult launch and poor acceleration of the engine.

Which tool is required

First of all, it is necessary to prepare a tool for adjusting the carburetor of the chainsaw. A set of screwdrivers and rock keys, a special cleaning composition that dissolves corrupt and garbage will be required.

It is better to disassemble on a table or workbench. On part of the table, lay the flap of clean, preferably light and plain fabric, on which the parts removed and a tank for washing will be laid out. Optimal if it is an ultrasound bath.

Husqvarna 125R Setting a carburetor without a tachometer (temporary solution)

How to adjust the carburetor if you need to work, and the service with a tachometer is far.

A combustible pump (its membrane) is sucked into the carburetor system. Then passes through the fitting in the carburetor. Then the liquid moves through the intake and exhaust valve of the pump. Filtered with a net. Husqvarna 137, 14, 435 and other models adjusting the carburetor. DIY Carburetor Carburetor. On the needle valve moves into the membrane chamber.

We offer to familiarize yourself with a hibiscus of triple

  • Air supply to the tube with an air septum (damper). The partition regulates the intensity of the air flow.
  • The fuel supply system is certainly narrowed by the mixer to accelerate the flow.
  • 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 small. Thanks to the pressure drop, fuel seeps through a jickler.
  • Acceleration of the air flow contributes to the transfer of fuel (gasoline) and its spray. Ultimately, a fuel mixture of the desired proportion or density appears.
  • The air-fuel mixture seeps into the cylinder of the motor through the fuel tube.

The level of air density in the system depends on the area of ​​the open air damper. Husqvarna carburetor adjustment of the grass is identical to the Husqvarna chain carburetor adjustment. The more extensive the damper is open, the greater the fuel consumption and power.

Simply put, adjusting the carburetor on a benzocos. creating a good fuel consistency due to the correct air supply.

How to set up a carburetor on Husqvarna 128r

The adjustment of carburetic gasoline can be carried out with its own hands

Gasoline, as well as the entire gasoline tool for the garden, is easy to maintain in technology. Repair, setting on its own can and should. For example, adjusting the carburetor of a gasoline pump with your own hands is five minutes.

Carburetor from a gasoline machine. Node in the energy system. In it, as in any carburetors, there is a process of mixing air and fuel (gasoline) for further supply of engine cylinders.

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

The main problems and malfunctions of the carburetor.

The filter of the grid. There are only two problems with this element:

To find out the cause of the failure, the fuel filter cover is unscrewed to remove the filter. If he simply accumulates dirt, then washing with gasoline or purging will help.

If there are visible damage on the mesh filter, you need to place a new. In addition, there may be damage to the fuel connection (in the repair practice of checking this element).

The starter of the carburetor in most cases does not work due to clogging. Use acetone or the same gasoline for washing.

Filling parts of the carburetor with compressed air is an acceptable and convenient repair practice.

Throttle body, carburetor fittings, intake or exhaust pipeline. All of these details are subject to depressurization. You can probably check in a primitive form. Problem site to spread with soap foam.

Carburetic gasoline device

The basis of the carburetor is a gas tank. aluminium case. It has a diffuser (hole with internal contours). Air is pumped through the hole. The speed of oxygen (air) is dependent on the transverse section (passage opening) of the diffuser.

The diffuser is equipped with fuel channels. Of these, the fuel is directed by a stream of air.

The principle of operation of the carburetor

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

Carburetor adjustment Motokosa Husqvarna 125, 128

Motokosyhusqvarna 125, 128 (without a tachometer) Article of the spare part: 5450818-48.

Husqvarna 125R Setting a carburetor without a tachometer (temporary solution)

,If you need to work, and the service with a tachometer is far away.

In the carburetor system, the fuel is absorbed by the pump (its membrane). Then passes through the throttle in the carburetor. Then the liquid moves through the intake and exhaust valve of the pump. Filtered mesh. The valve needle moves to the membrane chamber.

gasoline, husqvarna, adjustment, carburetor
  • Air supply to the tube with an air septum (valve). The partition regulates the intensity of the air flow.
  • The system is narrowed by a diffuser to increase the consumption.
  • Gasoline through a float chamber and a jet with a 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. Due to the pressure difference, the fuel penetrates through the stream.
  • Air acceleration facilitates the transmission of fuel (gasoline) and its spray. As a result, the air-fuel mixture of the required proportion or density is formed.
  • penetrates the engine cylinder through the fuel tube.

Read adjustment of the Champion chainsaw carburetor 142

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

Simply put, adjusting the carburetor on a gasoline pump. creating an optimal fuel mixture due to the proper supply of air.

How to set up a carburetor on a gasoline pump

Before setting up, filters must be carefully cleaned in accordance with the instructions for maintenance in the manual.

Further configuration of the carburetor of the gasoline pump with its own hands is carried out using adjusting screws. There are only three of them:

Right (l). Fuel mixture adjustment for low speeds.

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

For adjustment, turn the screw for a quarter turnover by the clockwise.

Lower (t). He is responsible for setting up the engine at idle.

For proper adjustment of the olfactory speed, it is characteristic:

  • stable operation of a cold engine;
  • not excessive speed of hot engine;
  • for the head of the trimmer for the grass, a large supply;
  • Stable engine operation when the position changes (sharp rise or lowering the knife).

Left (h). mixture adjustment at high speeds. (Adjust the last screw).

Complete adjustment of the maximum rotation frequency, engine power, temperature and gasoline consumption depends on the left screw (h).

Setting the carburetor for the last screw is as follows:

  • Open the throttle all the way, giving full gas. Turn the screw clockwise until the rotation falls (in this case, focus on the ear).
  • Turn the screw as slowly as possible, counterclockwise, so that uneven operation of the engine.
  • Then turn back a little, barely hear a stable, smooth 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 installation (its correctness) is determined by the color of the candle, and not just the speed and stability of the engine.

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

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