Carburetor Adjustment Husqvarna 236

The engine stalls when you press the gas: causes and their elimination

  • Clogged fuel filter;
  • Depressurization of fuel hoses;
  • Muffler malfunction;
  • Jamming of the valve in the float chamber due to which the mixture does not flow in full;
  • Dirty air filter;
  • Failure of the crankshaft oil seals.

Elimination of all the indicated reasons is reduced to:

  • Cleaning of working bodies associated with liquids or air working environment;
  • External examination of the listed parts for problems;
  • Replaced old parts with new ones.

An important role for stabilizing the working stroke of the Husqvarna chainsaw is played by the correct carburetor adjustment, which is quite feasible at home.


The 38 cc engine generates 1.4 kW of power. The maximum speed of the chainsaw at such a load is 9 thousand rpm, and at idle. Only 3 thousand. Systems that work with liquids. A fuel mixture and chain lubricant are fully automated for autonomous and long-term operation.

Chainsaw specifications

There were no particular flaws in this Husqvarna chainsaw. The moment you will have to face is the high cost of the consumables and lubricants recommended for use.

Chainsaw “Husqvarna” 236: features, specifications and DIY repair

Carburetor Adjustment Husqvarna 236

Chainsaw “Husqvarna” 236 X Torq is an excellent household tool from the famous Swedish brand “Husqvarna”. In terms of its technical and functional advantages, it is considered the successor of the earlier Husqvarna model 137.

As a basic analogue, it is not designed for commercial operation. For felling, woodworking industries. The ideal areas where this chainsaw found its application are gardening, landscaping, lumber harvesting, repair and construction at the domestic level of complexity. Thanks to innovative technologies, this unit can be operated both outdoors and in closed, unventilated rooms.

Chainsaw “Husqvarna” 236. The unity of environmental friendliness, economy, modern design solutions and the best European traditions of sawmilling.

Malfunctions of the Husqvarna chainsaw 236

According to official statistics, its 5 most vulnerable systems are:

  • Motor;
  • Muffler;
  • Carburetor;
  • Lubrication supply;
  • Inertial braking.

Manifestations of malfunctions of the first group:

  • The motor does not start or does not function stably;
  • Runs with periodic crashes;
  • Does not keep idling;
  • Smokes and does not generate traction as specified by the manufacturer.

In addition to the above, there is one more problem, which we will dwell on in more detail.


Chainsaw Husqvarna (Husqvarna) 236: features, specifications, DIY repair

Husqvarna brand saws come in many models, which include professional and household grade tools. The reliability and durability of these chainsaws proves the high demand for them. The simplicity of the design with the availability of spare parts makes the tool easy to service. The country of origin of these chainsaws is Sweden. The brand has established itself in the world market as a manufacturer of quality tools for general use. Let’s consider the device and characteristics using the example of the Husqvarna 236 chainsaw. Despite its low cost, high-quality materials are used for its manufacture, the design is convenient and ergonomic, and the assembly is very accurate and reliable.

Husqvarna 236 saw malfunctions, how to fix them

There are also a few typical Husqvarna 236 chainsaw malfunctions. There are times when the chainsaw won’t start or stall when you press the gas. The reason for this is most likely clutch wear. To remove and replace the mechanism with a new one, first unscrew the air filter and spark plug. Carefully remove the sprocket, spool and washer. Install a new clutch sprocket, assemble the mechanism in the same order. Do not worry if there are any extraneous sounds after the first few starts. The drive sprocket may turn slightly until it locks into place.

Another common problem is the lack of oil flow to the chain for the Husqvarna 236 chainsaw. In this case, check the serviceability of the oil pump and the tightness of the hoses. To fix this problem, proceed in the following sequence:

  • Remove the protective cover, starter spring and air filter;
  • There is a pump on the right under the filter. Inspect it for damage. Replace if necessary;
  • Inspect the quality of the hoses, their fastening. Replace them if necessary.

Design and features of the Husqvarna 236

The diagram of the structure of the chainsaw is shown in the picture below:

The Husqvarna 236 chainsaw is designed for operator comfort and safety. An emergency brake with a quick stop of the mechanism is provided. There is also a system for catching a loose chain, which protects against accidental injury during operation. Centrifugal air purification system contributes to efficient cooling. Vibration protection reduces the burden on the operator, allows for a long time without interruption. The fuel system is equipped taking into account the environmental standards, additionally cleans the exhaust gases from harmful compounds. The reduction in fuel consumption is achieved using the Husqvarna 236 X-torq chainsaw. An innovative system that reduces fuel consumption by 20%.

Husqvarna 236 Saw Advantages and Specifications

The Husqvarna 236 chainsaw stands out for its versatility, capable of performing a wide range of jobs. This includes both hard work on felling trees, preparing firewood, and work on pruning shrubs, forming crowns of garden trees. For its household class, the model is optimal in terms of price-quality ratio. It is equipped with a productive engine with a sufficient motor resource. Ergonomic design and secure grip ensure comfortable operation and mode switching. Good assembly of the tool prolongs the service life, especially if the instructions for use are followed. In case of serious breakdowns, you can repair the saw yourself by purchasing original spare parts. Also, a high degree of unification of brand tools allows replacement of spare parts between models of the same type.

The rest of the Husqvarna 236 chainsaw has the following technical characteristics:

  • Power. 1.9 liters. From.;
  • Fuel tank capacity. 300 ml;
  • Oil tank. 200 ml;
  • Tire length. 35 cm;
  • Chain pitch. 3/8 inch;
  • Number of links. 52;
  • Dimensions. 540270282;
  • Weight. 7.37 kg.

Features of model operation

Adhering to the manufacturer’s operating recommendations, you will significantly extend the service life of the chainsaw, save it from premature repairs. One of the main requirements is the use of high-quality fuels and lubricants. Refuel the saw with a mixture of petrol and oil in a ratio of 1:40. Gasoline grades AI-92 or 95 is suitable. Oil is selected based on operating conditions. It can be either mineral oil or synthetics. The second option is more expensive, but still more effective.

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It is also important to run in the tool correctly. It is carried out according to the following algorithm:

  1. Start the chainsaw and warm it up for a few minutes.
  2. Work the tool for about half an hour at light loads, sawing thin branches.
  3. Then you can gradually increase the load.

How to adjust the carburetor of a Husqvarna 236 chainsaw?

Adjusting the carburetor of the Husqvarna 236 chainsaw is necessary if there are problems with idling or when the tool stalls when the throttle increases. Also, the carburetor should be readjusted when operating conditions change. Its device is quite simple and straightforward; any user can handle the setup. The main adjusting screws are shown in the photo below:

You can correctly adjust the carburetor in the following sequence:

  1. Warm up the engine for about 5 minutes.
  2. Turn screw L to maximum turns, immediately return it a quarter of a turn back.
  3. While holding the throttle grip, turn screw H a quarter turn forward.
  4. After 10 seconds, lower the throttle and turn the screw T clockwise until the chain starts moving. Immediately after that, start turning the screw back until the chain stops.

For greater clarity, we also suggest that you familiarize yourself with, which demonstrates the adjustment process:


Carburettor adjustments or repairs on Husqvarna chainsaws can be done without any prior experience. In order to do everything right, you must follow the algorithm and have a minimum set of tools. It is also worthwhile to assess your strengths in advance and not take risks if you do not understand anything at all in technology. Believe me, sometimes it is better to pay a small amount to the master than to ruin the instrument by self-adjustment.

Husqvarna 236 Saw Advantages and Specifications

The Husqvarna 236 chainsaw stands out for its versatility, capable of performing a wide range of jobs. This includes both hard work on felling trees, preparing firewood, and work on pruning shrubs, forming crowns of garden trees. For its household class, the model is optimal in terms of price-quality ratio. It is equipped with a productive engine with a sufficient motor resource. Ergonomic design and secure grip ensure comfortable operation and mode switching. Good assembly of the tool prolongs the service life, especially if the instructions for use are followed. In case of serious breakdowns, you can repair the saw yourself by purchasing original spare parts. Also, a high degree of unification of brand tools allows replacement of spare parts between models of the same type.

The rest of the Husqvarna 236 chainsaw has the following technical characteristics:

  • Power. 1.9 liters. From.;
  • Fuel tank capacity. 300 ml;
  • Oil tank. 200 ml;
  • Tire length. 35 cm;
  • Chain pitch. 3/8 inch;
  • Number of links. 52;
  • Dimensions. 540270282;
  • Weight. 7.37 kg.

Adjusting the carburetor of your Husqvarna chainsaw

Modern chainsaws have a complex system and consist of several main units that periodically require maintenance and adjustment. In this article, we’ll talk about how to adjust the carburetor on a Husqvarna chainsaw.

About the carburetor device

The carburetor serves to mix the combustible consistency with air, observing the proportions established in advance. When is the carburetor of a chainsaw necessary to adjust? Husqvarna 137. If precise doses are not adhered to, the proper functioning of the engine is at risk. Adjusting the carburetor of a Husqvarna 137 like a Husqvarna 240 or 260 will save the chainsaw too. When a huge amount of air enters during mixing of a component, and there is not enough fuel, then this mixture is considered “poor”.

Over-saturation should not be allowed, because with a large amount of fuel compared to air, malfunctions or engine wear are also likely. Adjustment of the carburetor is needed not only before the initial introduction, but also when any differences in its operation are revealed. Before using the chainsaw, do not forget to run it in.

Components of the carburetor

The carburetor design contains a standard set of parts, but may vary slightly depending on the manufacturer. Components:

  1. The basis. It is a special tube that visually resembles an aerodynamic structure. Air passes through it. In the transverse direction, a damper is located in the middle of the pipe. Its position can be changed. The more it is pushed into the passage, the less air enters the engine.
  2. Diffuser. This is the tapered part of the tube. With its help, the air flow rate increases exactly in the segment from which the fuel comes out.
  3. Channels for fuel supply. The fuel mixture is contained in the float chamber, then passes into the nozzle, from which it flows into the sprayer.
  4. Float chamber. Carburetor adjustment Husqvarna 236. Do-it-yourself carburetor adjustment; It is a separate structural element, reminiscent of the shape of a tank. Designed to constantly maintain an optimal level of fuel fluid in front of the entrance to the channel where the air comes from.

Not sure which chainsaw to choose? Read our article.

Looking for models that are cheaper, but reliable and time-tested? Pay attention to Russian-made chainsaws.

Alternatively, research foreign chainsaw manufacturers such as Stihl.

Nuances of adjustment

After adjustment, the chainsaw should easily pick up and drop speed, work stably at low and high speeds. If the saw chain rotates at idle speed after adjusting the carburetor control screws, this is a sign that the adjustment has been made incorrectly and it is necessary to correct the position of the screw (T).

Also, when adjusting the Husqvarna carburetor, it is worth considering the response time of the chainsaw to the rotation of the screws. The settings do not change immediately, but within five, ten seconds.

One of the indicators of an incorrect adjustment is a strong smoke when the saw is running, which indicates a large amount of fuel entering the combustion chamber. If such a situation occurs, you need to correct the position of the screw (L).

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DIY chainsaw carburetor setting

For an independent carburetor option, you must familiarize yourself with its device and understand the order of work that is carried out to adjust the parts responsible for the correct functioning of the component parts of the device and parts close to it.

It is necessary to carefully handle the items for the system option, also to determine whether the set characteristics correspond to very permissible values.

Scope of application

Like its predecessor, the Husqvarna 236 is designed to work from time to time in lighter conditions. She perfectly copes with the pruning of branches in the garden or with the annual harvesting of firewood for the barbecue or sauna. It is better not to use a chainsaw as a professional tool, since its resource is not designed for this, accordingly, it will quickly spend it and will require major repairs.

Also, the saw does not have enough power to solve the tasks that the professional models of Husqvarna chainsaws can cope with.

The design of the saw, its weight and technical characteristics are not designed for commercial use, but many do not take this into account and believe that the saw should serve faithfully and truly, indefinitely. Believe me, miracles do not happen, if you need to work 6-8 hours daily, then it is better to choose more powerful saws designed specifically for these purposes.

This model is popular with builders for trimming beams, boards, bars. Due to its low weight, the chainsaw is used when working at height, for example, when building roofs or trimming tree crowns.

Below is an overview from the YouTube site, which tells about the purpose of the 236th Husqvarna, its design features, pros and cons.

Chainsaw reliability

The 236th model of Husqvarna is considered to be quite reliable and, if used correctly, its use does not cause trouble for the owners. In cases where the tool is used and stored incorrectly, the first thing that can fail is the carburetor.

Like all two-stroke chainsaws, the Husqvarna 236 is very sensitive to the cleanliness of the air entering the cylinder. In the event that the owner of the tool does not monitor the cleanliness of the air filter and changes it out of time, the saw’s CPG fails much faster. This is a rather serious problem, the solution to which is to carry out a major overhaul.

For detailed information about the malfunctions of Husqvarna chainsaws, as well as how to fix them, you can learn from the article Husqvarna Repair, which is posted on our website. The article contains information on how to remove the cylinder, what to do if oil leaks or the Husqvarna 236 starts and stalls.

Vladimir. 36 years. Tyumen.

I bought my chainsaw more than 2 years ago. At first I was a little upset, because it seemed to me that it had a little lack of power, but after I visited the service center and adjusted the carburetor on the saw, the engine started working at full capacity and the chainsaw significantly increased performance.

For the entire time of operation in a sawmill, I work on a sawmill, the 236 practically did not break. I change the filters on time and try to keep the saw clean. After every working day, I clean with a compressor. In my opinion, this is what allows you to work without breakdowns.

But there were still breakdowns. After a year of use, I had to replace the starter cord, but I think it’s a trifle. There were also some starting problems, but ended after I replaced the fuel filter. In general, I have not heard that such chainsaws do not start well.

I advise you to use only high-quality Husqvarna oils, because I use them and I am very satisfied. Even to lubricate the chain, I use a special adhesive oil and I noticed that the tire and drive sprocket last much longer than my colleagues who save and fill in used oil from car engines.

I recommend to everyone, the chainsaw is worth the money spent on it.

Pros and cons of using a Husqvarna 236

Any chainsaw has both positive and negative aspects associated with its operation, maintenance and repair. The Husqvarna 236 is no exception. According to real users of this saw, it cuts well, but does not start very well.

Service experts say that the Husqvarna 236 is very capricious in maintenance and repair. This is especially true for the carburetor, which is slightly different from that of previous Husqvarna models.

The 236 is equipped with a Zama carburetor with an accelerating pump, which, if stored improperly, quickly fails.

The problem can be solved by replacing the O-ring, which is installed on the pump piston. Repair kits, in which there are accelerator pump rubber bands, are quite rare on sale and for this reason you have to completely change the carburetor, which greatly increases the cost of repair.

The assembly of the Husqvarna 236 chainsaw is very high-quality, the body parts are well-fitted, there are minimal gaps between them, but the saw is structurally very inconvenient. For example, in order to remove the carburetor, you need to unscrew several screws, remove the control lever and unscrew the rear handle.

Combined control

Another design feature of the Husqvarna 236 is the combination lever with which you can control the position of the choke and stop the engine.

The function is quite useful, according to the manufacturer, it will increase the stability of the chainsaw engine.

Specifications Husqvarna 236

The main characteristic of the Husqvarna 236 chainsaw is the power indicator, the Husqvarna 236 has a power of 1.9 horsepower, which in terms of kilowatts is approximately 1.4. The saw weight is 4.7 kilograms, which makes it possible to use it by women.

The maximum power of the Husqvarna 236 chainsaw develops at 9000 rpm. The volume of the cylinder is slightly more than 38 cm 3, the capacity of the fuel tank is 0.3 liters, and the oil tank is 0.2.

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An oil pump is installed on the tool to supply lubricant to the saw chain, which automatically adjusts the supply in proportion to the increase in crankshaft speed. Such a system allows not only to effectively lubricate the rubbing elements of the saw headset, but also to save oil in idle mode.

Your Husqvarna chainsaw comes standard with a 3/8 pitch saw chain with a 1.3 mm groove width and 52 links. If necessary, you can replace the tire and drive sprocket, which will allow you to install the chain with the required number of links and chain pitch.

Highlights Husqvarna 236

Husqvarna strives to comply with all applicable environmental standards and for this reason equips its saws with modern two-stroke engines made with X-Torq technology. This is the engine that powers the Husqvarna 236 saws.

Do-it-yourself Husqvarna 236 carburetor adjustment

The chainsaw is considered by many as the ideal and irreplaceable assistant. After all, with its help, you can perform all the work that the ax previously helped to do, without spending a lot of time and effort. That is why almost every home craftsman has such a tool in his arsenal.

The design of the units under consideration is not so complicated. And this means that every craftsman can repair the tool, taking into account the advice of specialists. We will look at the sequence in which the Husqvarna 236 carburetor is adjusted with our own hands.

Carburetor accessories

First of all, it is worth figuring out which adjustment screws are provided in the Husqvarna 236 chainsaw.

The manufacturer equipped the model in question with 3 screws:

  • L-screw regulates the jet at low revs;
  • The H-screw is used to adjust the jet at high speeds;
  • T-screw is used to adjust the idle speed.

If it is necessary to adjust the supply of fuel, lubricant mixture and air access, the first 2 elements are used. Turning them clockwise, the mixture can be leaner and slower. Performing actions in the reverse order, that is, unscrewing the elements in the opposite direction, the mixture is enriched and the speed increases.

The idle speed is adjusted by the third element. Turning it clockwise, the revolutions increase, and to decrease them, the screw is simply turned in the opposite direction.

Step-by-step adjustment

Experts recommend making an independent adjustment of the carburetor in the model in question, adhering to the following plan:

  1. First of all, you need to adjust 1 screw, then proceed to the second and only lastly, do the adjustment of the screw responsible for idling.
  2. Next, you need to determine what are the largest idle speed. To do this, you need to carefully turn 1 screw clockwise. Having found the largest value, the element should be turned ¼ turn counterclockwise. If, during this operation, the chain continues to rotate while idling, the T screw must be slowly turned counterclockwise until the chain stops rotating.
  3. Using the screw H for adjustment, it is realistic to change both the power of the unit and the frequency of its revolutions. However, it should be borne in mind that if the carburetor will work for a long time due to the ordinary mixture and at high speeds, this can cause the chainsaw to fail.
  4. To adjust the screw H, you need to do the following steps:
  • Warm up the engine of the unit for 15-20 seconds by selecting the full speed mode;
  • Turn the H-element counterclockwise by ¼ turn;
  • Leave the engine in working condition for 10-15 seconds;
  • Using a tachometer, analyze what the maximum speed is;
  • If the received data do not coincide with the passport, the process should be repeated again.

The four-stroke sound of the engine will help to understand that the adjustment is made correctly. If the mixture after adjustment is too lean, the unit will make a squealing sound. If the mixture is too saturated, smoke will start to appear from the muffler. If in the arsenal of home craftsmen there is a device called a tachometer, then you can begin to independently adjust the H-screw. Under other circumstances, it is better to seek help from specialists.

  1. After the first elements are adjusted, you can start adjusting the idle screw, performing the operation in the following sequence:
  • After activating the engine, you should carefully start turning the screw T clockwise;
  • It is necessary to turn the element until the unit chain begins to rotate;
  • In the next step, the screw must be turned in the opposite direction to stop the rotating movements of the chain.

To understand that it was possible to correctly set the number of idle revolutions, the uniform operation of the engine, in all directions, with the necessary reserve of revolutions, during the rotation of the chain will help.

To independently understand that the work was done correctly, it will be possible to operate the engine, which should instantly accelerate and emit a four-stroke sound at full throttle. If the unit starts with difficulty, the engine will not be able to accelerate immediately, the first screw should be readjusted again to enrich the lean mixture.