Proper adjustment of the Husqvarna lawnie carburetor. Husqvarna carburetor adjustment

Frequent trimmer malfunctions for Husqvarna 128r grass

Deciphering symbols

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.

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.

proper, adjustment, husqvarna, lawnie, carburetor

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.

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.

proper, adjustment, husqvarna, lawnie, carburetor

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.

Cleaning the Carburetor on the Husqvarna 350 Chainsaw

  • 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.

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

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 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.

  • 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.

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.

general information

Husqvarna is a company from Sweden, which is a world leader in the production of various garden equipment. Husqvarna trademark products are trusted by buyers around the world.

One of the most popular trimmer models for grass is Husqvarna 128r.

This is a light lawn mower, which is designed to maintain in the purity of small personal plots.

One of the main structural features of the Husqvarna lawn mower is its small mass. Trimmer for grass weighs only 5 kilograms.

This moment is very important for future owners, since the lawn mower is worn on the shoulders, and eventually fatigue occurs over time.

From personal experience

lawn mower or trimmer for grass

Trimmer for grass is a broader concept than a lawn mower (lawn mower), since it can also be an electric. The gasoline trimmer for grass and the lawn mower is the same thing.

Some authors assure that a trimmer for grass is a weaker tool, unlike a more powerful lawn mower, which can be used to mow shrubs. Personally, I have a tool with a maximum capacity of 1.7 kW and capable, as stated in the instructions, to mow a small shrub up to 10 mm thick. User manual is called “trimmer for gasoline grass”.

The proportion of the fuel mixture

I read somewhere that if the law mowing manual and the canister with butter indicates different proportions of the preparation of the fuel mixture, the proportion indicated in the manual should be used.

It was done for a long time. excess oil flowed out of the engine to the gas tank and the fiber was constantly formed on the candle, since the leadership indicated a proportion for a run.in engine 1:25, and on the canister. 1:50. After the transition to a proportion of 1:50, the appearance of oil fluxes stopped. The candle continued to burn, but with less intensity (the carburetor has not yet been adjusted).

Until now, some users of the benzo tool determine the fuel mixture “by eye”. If when preparing the mixture the amount of oil is underestimated, after a while an extraneous sound may appear immediately after the engine starts, gradually disappeared during heating, and the engine stop occurs with a sharp jerk. The continuation of the operation of a trimmer for grass in this mode will lead to its failure.

Clead cleaning

In the worst times of the work with a trimmer with an unresolved carburetor, the engine stopped starting after using each fuel tank. And only after cleaning the candle from the car, could you continue to work.

For cleaning the electrodes, fine sandpaper was used, and a thin stationery clip with a bent end was used to clean the space between the insulator and the case. At first, the electrodes were wiped with high dirt with a rag, then cleaned with sandpaper. After that, the candle fell into the diesel fuel and the moistened carpet was opposed by a paper clip from the surfaces of the insulator, the inside of the body and between them. Further, the candle fell several times into the diesel fuel, which then shake off it along with the pollution. Sometimes the procedure for cleaning a paper clip and washing were repeated. After that, the candle wiped dry and was ready for further operation.

Incredibly, one fuel mixture tank with an unresolved carburetor can be spent in less than 10 minutes. verified in practice, when the trimmer for the grass was launched and operated at high speeds with maximum fuel supply (the adjusting screw was unscrewed much more than the norm).

Other articles: lubrication of the shaft of a lawn mower, a trimmer for the grass of the lawn mower malfunction (trimmer for grass) adjust the valves of the diesel motor block heavy diesel unoic tractor (launch, storage) of the MaxCut MC 55 motorbike. drilling of openings for the poles alignment

Online store AgroSemfond-seeds, planting material and other products for the garden and garden by mail from Nizhny Novgorod.

How to repair a Husqvarna carburetor with your own hands?

During operation and diagnostics, defects in the carburetor may be detected. Most of them can be eliminated on their own with a minimum of knowledge and without contacting a specialized repair center.

Among the methods of elimination, one can distinguish:

  • Replacement of various gaskets in places of connection of hermetic parts;
  • Cleaning or replacing the filter elements of the carburetor;
  • Replacing the pump elements or valves;

Almost all of the above details can be positioned as a reprimatum complex, which is used for small-cutting carburetors’ repair. After installing them, the Husqvarna 137 chainsaw carburetor can forget about the malfunctions for a long time, and regulation will become easier.

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.

Trimmer for Husqvarna grass 128

Review of the gasoline trimmer Husqvarna 128R. Great mowel for a summer residence

I was puzzled a year ago when they bought a cottage outside the city. My wife decided that she needed only natural products and my task was to prepare the overgrown area for landing in order.

Husqvarna 128r reviews in the city of Tyumen

First of all, it was necessary to dig grass, which, in the absence of permanent living owners, has grown capital.

I absolutely did not want to mess with the wires, I “on you” with a gas engineer, and therefore decided that I would take a lawn. The model was not very powerful, why? It is necessary to grab the grass and small shrubs. There is a greater power of horses.

And of course, so that there is a chest belt, otherwise you will get tired quickly on your hands.

For a couple of days, having read reviews, I decided that I would take a gasoline trimmer for the Husqvarna 128R grass. the model is very famous, already running around by many and with a bunch of positive reviews. I bought it, I worked the season and tell you. an excellent device, not without minuses, of course, but many more pluses.

  • Power 1.1 horsepower
  • Weighs about 5 kg
  • Bachk for a gas mixture for 400 ml
  • Engine 29 cubes
  • The kit includes a “head” with a fishing line and a shrub cutting knife
  • There is a shoulder belt. I hung a mole on himself and go, just have time to wave
  • Handles are adjustable in height
  • An ordinary solid mower without bells and ground (without anti.vibration systems and other things)
  • The price tag is now about 10-11 thousand

There is everything that is needed for a normal benzotrimer. a shoulder belt, a trimmer fishing line and a knife in the kit. Well, all sorts of keys and TP. Everything is in the photo, except for the mower itself:

A separate song can be singing a knife, with it the mower turns into a terrible car, cutting everything in its path.

Of course, you need to know the measure and do not “burp” on a thick shrub, but a light shrub like raspberries, young cherries and thick burdocks mows, only scraps scatter.

Well, for himself he noted the moment when to work with a fishing line, and when with a knife. mow young grass with a fishing line, a regular with a diameter of 2.5 mm mows chic.

But if you blink the moment a little and the grass turns into a lignified weeds, then put a knife. He copes at all without problems.

So as not to ditch a trimmer for grass, listen to the sound of a working engine when running.

Feel that it starts to “strain”, take a smaller one, if you mow with a fishing line. rearrange on a knife.

  • Economical apparatus
  • There is a shoulder belt. the load from the hands is redistributed throughout the body
  • Chic knife included for shrubs
  • Solid assembly
  • There is enough power if you do not run the site
  • Low

A very economical mower, my neighbor mows with a parapet (though it will be more powerful), but the consumption varies very noticeably.

For my needs, there is enough engine of 29 “cubes”, well, I feel when the tool is straining. The main thing is not to “overtake” him with high loads. you see, for example, that instead of the time, real bushes, dense, tall, frequent.

And you take and put a head with a fishing line into this bush. Of course, the mower can “zoop”, yet for such thickets you need a engine more powerful. Or put a knife.

In general, so that the device serves faithfully, do not “sit” it, prudently determine when and how to mow.

I have no complaints about all the rest at all.

For work I use a mixture of Benza AI-92 and corporate Khuskvarnovsky oil. Rustling without complaints. Once correctly configure everything and starts with half a pend.

The shoulder belt saves from the load of the hands, although if you work for a long time, then your hands are buzzing.

It would have a good anti.vibration system here, but then the price tag would then be higher than one and a half times. Or you can buy special anti.vibration gloves, who works a lot.

In general, for the house this saw will be the best choice if you do not launch your site and do not turn it into a jungle.

Or you will need something more powerful. For regular use Husqvarna 128r. just super. I really like.

Accurate adjustment of the carburetor of the lawn mower (trimmer for grass) Husqvarna

1) Right screw. regulates the enrichment of a low.speed mixture (regulated first): Find the maximum idle speed, slowly turning the right screw to the right and left. Then turn this screw on ¼ turn counterclockwise.

Note: from the Husqvarna plant, the right screw was completely unscrewed (at 0.5 turnover). Now he is looking at “11 hours”.

The adjustment of the idle speed is considered to be correct when: 1.

The cold engine is stable at idle; 2. The hot engine has not highly high speeds; 3. Before the rotation of the trimmer head, a sufficient supply of revolutions remains; four.

The engine works steadily in any position (for example, with a sharp lowering knife).

Note: from the manufacturer (Husqvarna), the idle screw from the fully twisted, was twisted at 8 full revolutions and “2 hours” (now it remains). Husqvarna.2.recommended idle gas mowing engine. 2.900 rpm.

3) Left screw. regulates the enrichment of a mixture of high speeds (regulated last). It regulates maximum speed, engine power, temperature and fuel consumption.

Note: the Husqvarna engine should not operate at full speed for more than 10 seconds!. Open completely the throttle (give full gas) and slowly turn the left screw clockwise until the speed of the Husqvarna engine is reduced (by ear).

Signs and causes of poor unstable work

Signs of violations of the functioning of the chainsaw carburetor:

  • The engine starts poorly and stalls quickly. Possible reason: impoverished mixture.
  • Excessive (more norm) fuel consumption. In addition, intense (more ordinary) exhausts. Possible reason: oversaturated mixture.
  • The engine does not want to work at all. There are two reasons here: there is no gasoline (the fuel nozzle is clogged) or there is no spark (a candle is faulty, a breakthrough of a high.voltage wire or failure of an electronic unit).

The settings failure itself are rare and the reasons are usually the following: the following:

  • Violation of the mounting screws from a faulty (damaged) coating of a protective casing. Possible reason: inaccurate touch, attempts of rough adjustment or strong external vibrations.
  • Wear of the piston group. Here of course, the adjustment of the carburetor, it will not particularly help. Think about the repair of ICE or the replacement of the saw.
  • Carburetor pollution. Probable reason: breakdown or unsatisfactory condition of the air filter, the use of poor.quality fuel, getting into the fuel channels of the scale, the smallest sawdust, etc. D. In such cases, at first, washing the entire fuel system, and only then. adjustment.

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.

proper, adjustment, husqvarna, lawnie, carburetor

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.

Tutorial: Husqvarna 365SP Carburetor Rebuild and Explanation of Operation

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.

How to remove a carburetor and whether it is necessary to do this before setting

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.

The spring may interfere

My first attempt to adjust the gas mowing carburetor did not give anything, since the spring of the fuel mixture adjustment propeller prevented. The factory spring turned out to be too thick in a compressed state and did not make it possible to reduce the supply of fuel to the required level. I had to choose another spring and continue the adjustment after its replacement.

The adjusting screw for feeding the fuel mixture with the spring

In the photo above the factory spring, below the adjusting screw with a selected spring. I am writing about this, because I am not sure that this is an isolated case, and someone else may face the same situation.

From personal experience

lawn mower or trimmer for grass

Trimmer for grass is a broader concept than a lawn mower (lawn mower), since it can also be an electric. Gasoline trimmer for grass and lawn mower. This is the same.

Some authors assure that a trimmer for grass. This is a weaker tool, in contrast to a more powerful lawn mower, which can be used to mow shrubs. Personally, I have a tool with a maximum capacity of 1.7 kW and capable, as stated in the instructions, to mow a small shrub up to 10 mm thick. User manual is called “trimmer for grass gasoline. “”.

The proportion of the fuel mixture

I read somewhere that if the law mowing manual and the canister with butter indicates different proportions of the preparation of the fuel mixture, the proportion indicated in the manual should be used.

For a long time he did. Excess oil flowed out of the engine to the gas tank and the fog was constantly formed on the candle, since the leadership indicated a proportion for a running.in engine 1:25, and on the canister. 1:50. After the transition to a proportion of 1:50, the appearance of oil fluxes stopped. The candle continued to burn, but with less intensity (the carburetor has not yet been adjusted).

Until now, some users of the benzo tool determine the fuel mixture “by eye”. If when preparing the mixture the amount of oil is underestimated, after a while an extraneous sound may appear immediately after the engine starts, gradually disappeared during heating, and the engine stop occurs with a sharp jerk. The continuation of the operation of a trimmer for grass in this mode will lead to its failure.

Clead cleaning

In the worst times of the work with a trimmer with an unresolved carburetor, the engine stopped starting after using each fuel tank. And only after cleaning the candle from the car, could you continue to work.

Small sandpaper was used to clean the electrodes, and to clean the space between the insulator and the case. Subtle office paper clip with a bent end. At first, the electrodes were wiped with high dirt with a rag, then cleaned with sandpaper. After that, the candle fell into the diesel fuel and the moistened carpet was opposed by a paper clip from the surfaces of the insulator, the inside of the body and between them. Further, the candle fell several times into the diesel fuel, which then shake off it along with the pollution. Sometimes the procedure for cleaning a paper clip and washing were repeated. After that, the candle wiped dry and was ready for further operation.

Невероятно, но один бачок топливной смеси при неотрегулированном карбюраторе может израсходоваться менее, чем за 10 минут. проверено на практике, когда триммер для травы был запущен и эксплуатировался на высоких оборотах с максимальной подачей топлива (регулировочный винт был откручен намного больше нормы).