Chainsaw does not download gasoline in the carburetor reason.

Why does not apply gasoline into a chainsaw

If during the launch and operation of the tool its owner hears sounds resembling shots, then this indicates a malfunction of the node in which the fuel is mixed. The reason for this, most likely, are such malfunctions of the carburetor of the chainsaw:

  • The tattered ignition. in this case, the fuel does not burn out, which leads to specific sharp shots;
  • The supply of a low concentration of gasoline to the carburetor. to fix the problem, you will need to configure the nozzles.

If the shooting sound comes from the side of the muffler, then the problem is to oversaturate the fuel mixture with gasoline. If there is too little air in the fuel, then it will burn not only in the chamber, but also in the muffler. Evidence of this will serve as a large amount of soil on the inner walls of the muffler.

Each modern chainsaw, regardless of its purpose and design features, is equipped with a fuel system. It is based on a carburetor, the main function of which is to mix the fuel mixture with previously purified air. Any malfunction of the carburetor leads to power loss and other problems with the garden benchmain. You can solve them yourself. for this you need to study the design of the fuel unit, the features of its adjustment and methods of independent repair.

What to do if the chainsaw does not start further?

If the initial inspection did not give anything or the defects in the search process were eliminated, and the chainsaws are not started, then you need to look for more serious reasons. It is best to identify and eliminate such breakdowns in the service center. However, in the presence of experience, you can find and eliminate them independently. What to diagnose and check?

In the first case, checking the compression in the cylinder will find out the condition of the cylinder.piston group (CPG) of the chainsaws that does not want to start on the cold. To do this, you need a compressometer. The device is screwed into the spark plug and the engine is idle. The measurement of indications allows you to judge the state of the CPG. In the absence of a compressometer, it is possible to determine the compression in the cylinder as follows:

By putting a finger to the candle hole and twitching the starter, you can check the compression in the cylinder

If you feel that the finger is strongly drawn into the candle channel, then everything is in order with compression. Lack of discharge in the cell, indicates the presence of a malfunction. The cylinder.piston group needs a more detailed examination, which will give an idea of ​​the state of the piston and cylinder, piston rings and bearings.

chainsaw, does, gasoline, carburetor, reason

You can’t start a chainsaw on a cold one due to the lack of compression in the engine crankcase. The main reason for this is the damage to the gasket placed between the cylinder and the crankcase. It is quite easy to identify the lack of compression:

  • Disconnect the upper tube from the carburetor;
  • Pour gasoline into ordinary cork;
  • We immerse in the fuel removed the tube;
  • We pull the starter several times.

If the fuel from the lid is absorbed when the starter of the chainsaw is launched, then everything is in order with compression. If not, see the gasket.

If the fuel is drawn, then everything is in the strand. the gasket is the whole. Otherwise, you will have to purchase a reptile and replace. How to do this watch the video, why the Chinese chainsaw is not started:

The launch of the tool can be complicated by the incorrect operation of the carburetor or its breakdown. It often happens that in the process of cutting, the fixing screws are weakened and the air sucks into the cylinder. Check the reliability of the carburetor mounting. Inspect it for fuel leaks. The causes of the malfunction may be a mass. It is possible to accurately determine the malfunction, eliminate it and carry out subtle adjustment of the carburetor only in the service center.

Having passed the cheeky defect of the chainsaw engine, you can find a malfunction, eliminate it yourself and successfully start your working tool. Do not take up those types of work that you are not sure. Trust the search and elimination of a malfunction to specialists from the service center.

The device of the chainsaw

Apart from the listed nodes, the chainsaws have a system of cleaning the air entering the carburetor, the tire with the pollen chain, the starter, the mechanism of tension of the chain, ignition, the silencer, etc.D.


Below is the scheme of another carburetor of the chainsaw.

Carburetors have a throttle valve, which allows the consistency to be watery or richer, depending on the criterion of operation. For a narrow option, there are several screws with which you can adjust the low and highest frequency of rotation of the motor, also the speed of idle. The floor of the carburetor is installed an air filter that cleans the air entering it.

Ignition system

The electric ignition of the chainsaw includes the flywheel (1) with magnets, the ignition module (2) with an electrical circuit, the spark plug (3) and the high.voltage wire (4). A spinning flywheel with magnets causes an electric motor in the module, which is converted by an electronic signals, supplied to the candle. As a result, the spark jumps between the contacts of the latter, lighting the air-fuel mixture.


The chainsaw engine has the highest speed of about thirteen 500 rpm. This makes strict requirements for the oil attached to the fuel consistency.

Why is the chainsaws badly starting

Consider each reason in more detail.

Fuel and air filter

Pollution of the main filter elements of the chainsaw, adversely affect its work.

For example, a dirty air filter will provide air supply to the carburetor in full, which will affect the quality of the fuel mixture and normal engine start. Fuel filter pollution will make it difficult, or even reduce the supply of gasoline to the carburetor and make the engine to work impossible.

Reduced compression

One of the frequent cases of the difficulty starting of the chainsaw is the wear of the CPG (cylinder.piston group).

As you know, for the normal launch of the chainsaw in its engine, compression should be present. It is necessary for the normal compression of the fuel mixture in the engine cylinder, it also affects the operation of the gasoline pump.

The reasons for the lack of compression, or its decrease, can be natural, The engine wear out during operation. Problems can also be caused by serious breakdown, for example, Zadir CPG, or breakdown of a piston ring.

A sign of reduced compression is the weak resistance of the starter during the start. With reduced compression, a decrease in the power of the chainsaw is observed, which negatively affects its performance. The problem of replacing piston rings, or completely CPH, is eliminated.

Carburetor adjustment

Not correct adjustment of the carburetor will cause the chainsaw will not develop full power. It will be bad to start, or not start at all. The setting of the carburetor directly affects the quality of the fuel.air mixture, which is necessary for normal starting and further engine operation.

Excess gasoline in the mixture, it is customary to call overflow. Characteristic signs of overflow, it is a wet spark plug, after several unsuccessful attempts to start a chainsaw.

Spark plug

Spark plug is one of the main elements of the ignition system. On its electrodes, a spark is formed, and when this element fails, it will be difficult to start, or it is not at all possible.

The candle can completely refuse, or work with interruptions or give out a weak spark. Checking the candle is quite simple, for this you will need to unscrew it from the engine, attach to the cap of the high.voltage wire and, putting it on the cylinder, pull the starter. If the candle is in order, the spark will be powerful with a bluish tint. Weak spark with a reddish tint, a sign of a problem. A defective candle needs to be replaced.

Ignition coil

The reason that a new chainsaw is not started, or it starts poorly, may be a ignition coil. Modern chainsaws are equipped with electronic ignition coils. This part is not subject to repair, and, as a rule, in the presence of a defect, it completely changes.

Fixing A Husqvarna Chainsaw That Starts But Does Not Stay Running

Gap between the ignition coil and flywheel

An unbelievable gap between the flywheel and the contacts of the ignition coil affects the quality of sparking, which in turn is responsible for the normal start and stable engine operation. adjustment of the carburetor of the chainsaw

To independently configure the standard carburetor, the owner of the chainsaw will need a cross or flat screwdriver. as well as manual tachometer.

Read also: How to set up a parabolic antenna

To adjust the gas.rosopila carburetor. The base device of its carburetor provides for spring.loaded adjusting screws.

Depending on the brand manufacturer of the chain saw, the marking of its adjusting screws may vary. However, to initially correctly configure the carburetor on the chainsaw. You can always act according to the same algorithm:

Chainsaw Won’t Start. What To Look For & How To Fix. (Husqvarna Carburetor Cleaning)

  • Initially, the operator must find in the instructions for the operation of the saw the exact angles of the gradual rotation of the adjusting spring.loaded screws. Immediately after that, on the used saws with a dried motor, they must be turned according to the instructions in the manual. If you do not do this, the operator risks breaking the engine engine;
  • Further, the chainsaw used on the farm will need to be motionless on a flat stable surface. In this case, the tire and the factory chain should be initially directed away from the operator;
  • Then you need to have a sawtte saw and give it at least 10 minutes to warm up;
  • After that, you need to find the correct position of the screw l. To do this, the operator must slowly turn it along the way and counterclockwise until the engine becomes quietly and without failures;
  • If, as a result of this, the chain began to rotate, then it is necessary to find the position of the screw t, in which the chain will stop in place:
  • Further to the ICE cylinder, you need to connect a tachometer. Then you need to start turning the screw h. As soon as the indicators on the tachometer coincide with the instructions in the instructions of the saw, the screw can be released.

To check the operation of the carburetor and the chainsaw engine, you need to start the engine again and slowly press the gas lever. If the internal combustion engine is smoothly gaining momentum, then the adjustment was performed correctly. If this does not happen, then you will need to turn the screw L to 1/8 turnover against the course of the watch of the clock and again conduct a motor check.

Why does not apply gasoline in a chainsaw?

According to the reviews of the owners of Chinese chainsaws, the technique is often broken and the breakdown is accompanied by the lack of fuel supply to the carburetor. If you have applied the above tips, it is necessary to diagnose the following elements:

The needle of the carburetor. On cheap chainsaws often sticks a needle in a carburetor, which does not allow fuel to act. Sometimes it’s enough just to move the needle and install it correctly.

Basils. Chinese and even branded chainsaws can have low.quality oil seals with poor tightness. Fuel ceases to flow when it begins to squeeze the fuel mixture through the seals. A leak of gasoline is quite possible through the seals.

Sapun check

It is the Sapun who plays a serious role in the establishment of a chainsaw, you can find such a part near the gas tank cover, or rather in the area of ​​the air hole. The sapun plays a simple, but important role. does not allow fuel to flow out and sets the correct air pressure. It is thanks to this air that the fuel enters the carburetor, and the malfunction of this element is a common reason when the fuel does not enter the chainsaw. The impaired the work of the soundtress will serve the formation of negative pressure, from which gasoline will not be able to enter the carburetor when trying to start a tool.

Checking the operability of the cabin is quite simple, disconnect the gasoline of the carburetor pipe and check how the fuel flows. If gasoline flows with a small stream, everything is in order, if it does not flow at all, the sapun is rather clogged with dirt. With proper execution, you can clean the part, sometimes it is easier to replace with a new. The cleaning procedure is performed either manually or by the supply of a strong jet of compressed air.

If everything is in order with the ignition system, then we go further and check the fuel supply system of the chainsaw.

Disconnect the fuel hose from the carburetor and look, flows out of it fuel or not. Fuel does not pump in the further, accordingly, the fuel does not enter the cylinder as I. There is no gasoline for repairing a chainsaw with your own hands with a chainsaw with all the desire. Features of the Husqvarna chainsaw that fuel no longer enters the Husqvarna chainsaw.

Each operating instructions indicate the need to track the condition of the chain lubricant system.

If the brake of the chain does not work, then the cause may be pollution of the brake tape with grease or sawdust with wood resin or covering space.

You can fix the problem that has arisen can be cleaned by pollution and replacing the brake tape.

The first stage in the search for the reasons why the gasoline saw is not started is checking the spark on the spark plug. There are many factors affecting the work of this element. However, the main ones at the initial stage of tool defect are:

  • Improper carburetor adjustment;
  • The presence of more than the amount of oil in gasoline;
  • Flowing the air filter.

They contribute to the formation of a carbon on the electrodes of the candle. In fifty cases out of 100, the saws are not started on the cold due to the absence of a spark due to the deposits of soot on the electrodes not their corrosion. In the course of a decrease in the clearance or its increase.

Checking the spark plug in non.working chainsaw

Check the presence of a spark simply. For this purpose, you will need:

  • Remove the tip of the high.voltage wire;
  • Unscrew the candle;
  • Put on the tip back;
  • Lean the candle with a skirt against the cylinder;
  • Start the starter.

If a good spark is observed at the time of starting the chainsaw engine between the electrodes, then with the ignition node what remains to make our client in order. In that case, it is not, then it is worth cleaning the element itself not to check the clearance of the electrodes. If desired, with the use of a special probe, adjust the distance between the contacts.

In candles of different manufacturers, the distance between the electrodes may fluctuate. Alone it is equal to 0.5 mm. Others have 0.3.2 mm. Therefore, carefully study the recommendations of the manufacturer.

Sparks on the spark plug may not be for other reasons. Of the main malfunctions that affect the poor launch of the chainsaw, the non.stupid operation of the ICE at idle, from which the tool may stall, refers to the following:

  • Overflow of the candle canal with fuel;
  • Lack of contact between a high.voltage cradle by a non.tip of a candle;
  • Damage of the ignition unit.

How to launch a cold chainsaw if the candle channel is constantly filled with gasoline? Eliminate the problem of temporarily starting the tool, there is an option by using the following algorithm:

  • Twist a candle with a special key;
  • Wipe it with a clean, not dry rag;
  • Dry for 20 30 minutes;
  • Remove the Nar with a file not to adjust the gap between the electrodes;
  • Drain the remaining fuel from the candle channel do not dry it;
  • Collect what remains to make our client not try to start a mechanism.

At the beginning, you need to make sure that in the tank of a chainsaw that does not want to start, there is a fuel mixture, not like oil regularly enters the carburetor. With a full tank, we check how the mixture is supplied to the gas pipeline. Disconnect the fuel tube that allows accounting (software) from the carburetor do not try to swipe.

Often the reason for the poor launch of the chainsaw, there will not be a too complete tank. Here it is worth studying the presence of subtexts under the cover of the saw Carter. If they are present, see the connection of the gas supply tube with the carburetor. Most often, the same oil is squeezed out by pressure when twisting the lid of the tank, tucked under the best neck, which prevents the engine from starting.

Fuel system

Fuel system malfunctions also quite often become the main reason that does not allow a chainsaw to work as efficiently as possible. First of all, it is necessary to check the quality of the fuel mixture.

Some owners prefer to use not recommended brand of gasoline, but alcohol.containing solutions or add more oils than that required.

Gasoline from chainsaw flows

If gasoline drops periodically appear on the chainsaw housing, then it is necessary to check the tightness of the fuel tank. Over time, it can dry out. Or the gasket “strangled” and it can no longer fulfill its direct function.

If full.fledged gasoline streams appear, it is likely that you have to change the bursting hose connecting the carburetor and fuel tank.

Gasoline does not enter the chainsaw cylinder

The reasons why the fuel mixture stopped entering the cylinder several:

  • The air filter was clogged.
  • Carburetor work settings flew off.
  • The carburetor membrane ceased to be holistic.
  • Channels through which gasoline is transported are clogged.

Basil does not hold idle speed

In this case, you should start looking for a malfunction from the filter elements. For the most part, it is precisely due to a decrease in the throughput of air and gasoline filters that the turnover at idle starts to “swim”.

If everything is in order with the filters, then it is necessary to check the components of the gas pipeline system, as well as make sure that there are no spontaneous changes in the carburetor settings.

Engine malfunctions

In most cases, subsequent shortcomings are observed in the work of the motor:

In order to find the cause of the problem, it is necessary to analyze the likely prerequisites in order by the way to exclude. Let’s go through this chain so that you know how to find a deficiency in a chainsaw in case of its occurrence.

A small amount of oil mixed with gasoline leads to increased wear of the cylinder.piston group. An excess of oil in the mixture, although not so fatal, is also harmful. Cooking piston rings, rapid formation of soot in the combustion chamber, and a drop in engine power may occur. In addition, the mesh screen of the muffler is closed. Therefore, some users (after the end of the warranty period for a trimmer for grass) recommend it to be dismantled.

Gasoline used in motorcycles. AI 92. The brand of gasoline is accurately prescribed in the operating instructions. Do not try to “force” the engine, filling the 95th gasoline into it. This can lead to overheating, unstable work of a trimmer for grass and breakdown.

It is not recommended to leave fuel in a trimmer tank for grass with a long break in operation. It is better to finish the working day by completely developing the entire mixture. If this is not done, then because gasoline from the engine will evaporate during the night, and the thin oil filter will remain, carburetor jacks may clog. This will cause difficulties the next engine start.

It is also necessary to observe safety precautions when storing fuel. Many pour gasoline into a plastic bottle of water. Is it worth doing so?

After several jerks, he will start and stall, which is a normal phenomenon. What to do when the fuel was definitely normal, there is a spark, but a trimmer for grass does not start a gasoline? Putting the damper to the working position, start the tool again and start working.

Any manufacturer of a benzo.tool first always suggests familiarizing in detail the operating instructions attached to a chainsaw or a chainsaw. Basically, the whole process of launch and further work with a benzo tool is painted there. Sometimes it doesn’t help, then let’s try to solve this problem together.

When buying in the right store of gas technology, you can tell you everything in detail about the launch and work of the gas tool, as well as demonstrate it in practice. If this was not, then it was a hypermarket or you were served by yesterday’s schoolboy or student. our congratulations!

Cold start.up engine. set the air damper lever (switch) to the “damper” closed “. We pump up the mixture in the carburetor in the presence of a fuel pumping pump (primer). Expand the starting handle (launching cord of the starter) to the tangible resistance of the engine, then pull vigorously (according to the amplitude with your hand to the chest).

2-5 such movements and the engine should start and stall-usually it happens. If this did not happen, further, as in the case of a successful first launch, we still transfer the air damper lever to the position of half.gas or even to the working position. And continue the institution in this mode by the same movements (1-4 times).

And finally, some have a regular keying switch, just look at whether it was turned on.

New chainsaw or benzotrimmer (lawn mower) may not start.

All the reasons why the lawn mower is not started can be classified by the specifics of the operation of individual units. In the service center, the malfunctions are classified:

chainsaw, does, gasoline, carburetor, reason
  • engine malfunction (piston wear, bearing malfunction, crankcase crack);
  • Fuel mixture malfunction. clogged pores of an air filter or a malfunction of a carburetor;
  • the ignition system does not work;
  • A mechanical malfunction. a leak of hoses, broken wires under the braid, rupture of the tubes.

The user first needs to check if there is a fuel in the tank. Start the launch in accordance with the instructions, putting the saw on the side. Set the air damper to the position “closed”, pump up fuel, turn on the ignition and produce 3-4 sharp jerks by the starter. If the engine has earned, open the air damper. The lawn mower is not started. we repeat the operations with a slightly open air damper.

With a unsuccessful launch, we begin to look for the reason for the refusal:

  • check the quality of fuel;
  • make sure that the candle and clean canal is working;
  • check the cleanliness of the air filter;
  • Make sure that the fuel filter is not clogged;
  • Check the cleanliness of the bastard;
  • Clean the exhaust channel.

complex reasons will be detected in the diagnosis of a malfunction, leading to the overhaul of the carburetor. Such reasons include clogging of the internal channels of the carburetor, wear on it gaskets and violation of the tightness of internal halls with a vacuum loss. DIY lawn mowing repair, if it does not start, will require patience.

Where to start the diagnosis of malfunctions if a trimmer is not started for grass? In situations where the tool stalls immediately after starting, it is worth examining the following units:

It is the breakdown of the above locations that most often leads to the fact that a trimmer for grass is poorly started. Let’s look at how to eliminate such troubles.

  • To twist the candle. Wipe it thoroughly, and then dry it.
  • Drain excess fuel in the chamber through the corresponding candle hole.
  • Clear the old candle if there is a dozen on its surface. Cope with the task will allow the use of a conventional ladies’ nail file or file.
  • When installing the element in place, set a gap of 1 mm. To check the parameter, it is enough to place any coin in the lumen.
  • Collect a functional block back.
  • Try to start a trimmer for grass.

It is recommended to perform a candle channel to dry for at least half an hour. However, in no case should you resort to the calcination of its elements. After all, heating the spark plug can lead to its final corruption. Что предпринять, если обслуживание функционального блока было выполнено в соответствии вышеуказанным рекомендациям, но триммер для травы не заводится, искра есть при этом?

In this case, it should be treated with gasoline threaded connection. The latter does not need to be saturated abundantly fuel. It should only be slightly moisturized. Resort to such actions should be to ensure the ignition. After all, no matter how much the candle gives a strong spark, in an absolutely dry chamber there simply will not be something to ignite.

If even in this case a trimmer for grass does not start, it is worth evaluating the quality of the contact between the high.voltage wire and the candle. In the absence of a spark (in the presence of a reliable connection between the indicated elements), most likely, the problem is caused by breakdown of the ignition unit. In this situation, you will have to turn to the services of masters who will reinstall the knot.

The stable functioning of a trimmer for grass can be impaired as a result of laying dirt in the graduation canal or the formation of a blockage on a muffler grid. This problem most often occurs during the operation of older generation trimmers. The issue is being solved by dismantling the anti.diploma mesh and its cleaning.

Repair of the GOODLUCK chainsaw carburetor. The principle of operation of the carburetor

Regardless of the manufacturer’s company, the principle and procedure for the operation of the carburetor of internal combustion engines is similar. Adjustment of the carburetor to adjust the carburetor of the chainsaw and

Air under the atmospheric pressure, passing the air cleaner, is supplied to the narrowing zone, where its consumption is regulated by the overlapping section, with a flat damper. After narrowing in the pipe, discharge appears. As a result, the vacuum sucks the fuel from the fuel supply tube, the output from which is regulated by a fuel needle connected to a float chamber with a jackler. The device of the benzopila carburetor, in principle, does not differ from other mixers of fueling internal combustion engines.

The principle of mixing is to regulate the air damper, the level of the float, depending on the degree of discharge. We open the air. more fuel comes, the engine increases the moment. The correct ratio of the combustible consistency is depending on the clear adjustment of the carburetor of the chainsaw. If there is a lot of air in combustible, the power falls, the mixture is called the depleted. With a shortage of air, there is a large fuel consumption, incomplete combustion, a dozen on the cylinder and the release of a unbroken fuel. It says that the mixture is super.saturated.

The Urals by annotation asks for a using enriched fuel consistency. Therefore, the carburetor from the plant comes with the setting for the period of the When switching to the operating mode, the knot is tuned in the ground.

Signs of good operation of the gasopyle carburetor:

How to rinse a gasopyle carburetor?

Think about cleaning the fuel unit of a benzo tool in such cases:

  • if the engine is difficult to launch;
  • with unstable operation of the internal combustion engine at short.term idle;
  • in case of failures by smooth pressing on a regular gas trigger;
  • with a significant increase in the costs of refueling.

Most often, for washing the carburetor of the chainsaw, liquids are used that are in almost every garage:

Modern gardeners using powerful professional saws use more effective and gentle means:

  • Mannol Vergaser Reiniger. Cleaner entering the sale of aerosol. He quickly and easily breaks down even the oldest formations of resins, soot, oily plaque and other types of pollution;
  • HI-GEAR-this cleaner stands out by high dissolution properties. He can bring out old dried spots, oily crust and the first signs of rust without harm to the parts of the fuel system;
  • Jet 100 Ultra. a spray designed to quickly clean the gasopyle carburetor. Shows the high rate of dissolution of the oldest oily spots.

Carburetor cleaning on the chainsaw is performed in the following sequence:

  • First, you need to clean the outer part of the saw engine, as well as dismantle and thoroughly rinse the case of the factory air filter;
  • Next, you can proceed to disassembly of the benzo tool. To do this, remove the filter housing, as well as unscrew the mounts holding the carburetor along with the engine;
  • Then you need to carefully disconnect the traction and gas cable from the carburetor. The springs available in the design must be removed so as not to stretch them;
  • After that, you need to carefully pull the hoses from the factory fittings for the supply of fuel;
  • To clean the carburetor on the chainsaw, you need to remove it from the branded fasteners. At the same time, it is important to maintain the integrity of the gasket installed between the ICE cylinder and the fuel node;
  • At the next stage, you will need to clean the external walls of the carburetor. To do this, they can be treated with a liquid cleaner or gasoline. In this case, you need to try so that dust and garbage do not get inside the node or cylinder of the motor;
  • Next, you need to unscrew the screws of the carburetor diaphragm, remove its lid and rinse the internal cavity with an aerosol cleaner;
  • After that, you need to dismantle the fuel filter of preliminary thin cleaning, as well as disassemble the part of the node to which the fuel is summed up. All the internal details of the carburetor must be thoroughly washed with an aerosol cleaner. If the first cleaning did not bring the result, then the flushing should be repeated.

After the final drying of all the internal details of the standard carburetor, you need to assemble the fuel unit in the reverse sequence, and install it in place in the design of the economic chainsaw.

The Partner 351 chainsaw has a serious drawback in the power system, which leads to interruptions in the work. This drawback lies in the adapter installed between the engine and the carburetor (we already talked about this above, in the same place in the photo we noted the location of the adapter).

Over time, backlash appears at the junction and a chainsaw begins to suck in air. This malfunction is manifested by failure when starting (the saw simply does not start), or while working in the form of speed instability, they spontaneously rise or fall.

Advantages and disadvantages

The main task of engines of motor tools, in particular, chainsaws, is a stable and confident work in any position in relation to the strength of severity. This feature, provided by a membrane carburetor with a pump, along with its constructive simplicity, is a significant advantage of the power supply unit Partner 351.

The disadvantages of the carburetor include the relative complexity of the adjustment, the narrow range of the amount of the mixture at the output and slow transitions between the established modes. In addition, it is sensitive to accelerations directed perpendicular to the membranes.

Malfunctions and their elimination carburetor repair of a chainsaw allows you to eliminate all the malfunctions that appeared during the operation of the device.

If the internal combustion engine is spinning with interruptions and accelerates the course for a long time, then you need to twist L against the sentry at 1/8 turnover. Then set the bolt s. The settings should be made until the engine begins to function correctly and quickly accelerate.

chainsaw, does, gasoline, carburetor, reason

Then check the adjustment of the screw h h. Accelerate the motor to maximum. Watch the exhaust and how the motor is spinning. If bluish smoke comes from it and a saw loudly rustles, then this means that the carburetor creates a too rich mixture. The highest speed ICE is less than the norm. Nar is formed in it. With such a problem, you need to scroll a bit clockwork slightly. Then they control the operation of the motor and, if necessary, repeat the setting.

If the saw screens, this means that the engine overheats, the exhaust occurs with a bang, interruptions are observed during ignition. This means that the mixture is unsaturated, and the largest revolutions of the motor are greater than the norm. This leads to overheating of the motor, combustion of the piston, cylinder and the burning of the candle. If such a problem occurs for configuration, it should be turned H to 1/4 turnover against the movement of the watch arrow.

If there is no fuel in the combustion chamber, such a malfunction is caused by a clog of a filter for fuel, nozzles or channels of the device. To eliminate the malfunction, a complete disassembly of the filter and purging these channels using the compressor will be fully disassembled. For cleaning channels, use a liquid for a carburetor.

It happens that in a carburetor there is a fuel overflow. This turns out if the membrane has failed, dried up and boiled, began to put pressure on the rocker attached to the needle. Then the needle is regulated. To change the membrane, you need to remove the carburetor.

The motor works with interruptions, does not gain speed of rotation poorly. This happens when filter clogged. It is necessary to remove the device cover and clean it using detergents.

How to remove a carburetor

Before repairing or cleaning the carburetor, it must be dismantled and disconnected from other systems. The dismantling of the carburetor is carried out as follows:

  • Remove the top cover. To do this, unscrew the bolts (3 pieces), which are located around the perimeter of the lid.
  • Remove the carburetor filter.
  • Then turn off the gasoline supply hose.
  • Disable the traction of the motor drive.
  • Take the tank connection tip.
  • Carefully remove and pull out a gasoline supply hose.

Disassembled with your own hands

Dismantling the carburetor of the chainsaw of the chomelite is as follows. Prepare a place. flat surface. The following tools will be needed:

After you dismantled the carburetor, you should disassemble it. Dismantling the carburetor is carried out in the order, which is provided by the design of the device.

Details of the device are small in size, so they should be folded in order, make sure that no components are lost.

chainsaw, does, gasoline, carburetor, reason

After disassembly, the device is defected and non.working parts and nodes are replaced. Rinse the device with a special liquid, dried, wiped with a dry cloth. Blown with compressed air tubes and nozzles. Before that they are processed with ultrasound to eliminate the plaque.

How to clean

When conducting work with your own hands, you need to roughly know how the carburetor is cleaned and washed. Rinse the device as follows:

  • Unscrew the screws on the device case.
  • Open the lid, pull out small parts and lay them on fabric.
  • Process the walls of the device and all parts with air from the compressor.
  • If the naggers remained on the nodes, then they are wiped with a degreaser.
  • Nodes and housing are dried.
  • Collect all the nodes of the carburetor and install it on the chainsaw.

It is necessary to rinse the carburetor if low.quality gasoline was used to refuel it or used a chainsaw in severe frost. After cleaning, the engine will work better, and the chainsaws will spin faster.

The malfunction of the chainsaw engine

Signs of malfunction of the chainsaw engine:

In certain situations, it is better to seek help from professionals, and take your saw to an authorized service center. But some malfunctions can be handled independently.

In general, in order to eliminate the cause of the very reason, it is first necessary to correctly determine it, otherwise all the repair will be tantamount to shooting at sparrows from the gun, and perhaps even shooting at “fictional” sparrows, since there may not be breakdowns and there can be no breakdown.

If you are trying to start a chainsaw, and it does not start, and at the same time does not make any strange sounds that are not inherent in it (knock, rattle), then you just get it incorrectly (if you pull the gas station on the leak for a long time, the internal combustion engine is filled with fuel, and then start it It is difficult).

How to start a cold engine correctly? one. Put a lever or switch to the “damper” closed “. 2. If the model has a fuel pumping pump, pump up the fuel mixture into the carburetor. 3. Extend the starter’s handle until the resistance appears, then pull the arm with the arm in the side (2-3 times) vigorously on the amplitude. No need to try to “tear out” the starter’s cord from the chainsaw! The saw should start, and then stall. four. If the engine does not start, transfer the lever to the position of half.gas or to the working position, and try to start the chainsaw in this mode. Please note: some models have a button ignition switch, make sure it is turned on.

What to do if the engine has not started? First we twist and examine the spark plug. It happens that when the chainsaw is launched in cold weather, the combustion chamber is accidentally poured with a fuel mixture. In this case, you should also unscrew the candle, dry the combustion chamber by the idle factory, clean the candle, and try to start the saw again.

How to check the presence of a spark on a spark plug? A twisted candle connected to a high.voltage wire, put on a cylinder and pull the starter. Be careful! With your hands you cannot touch the candle during this procedure! If you see a blue spark, then the candle is in order. We screw the candle in place, try to start the saw again. If failure befell again, we check the connection of the high.voltage wire from the candles, the coil and the ignition system.

By the condition of the candle, you can understand what happened to the saw:

  • Dry candle. Apparently, the fuel mixture will not get into the cylinder. The problem is not in the spark plug, so we tighten the candle back. And check the fuel supply system.
  • Wet, strongly stained with fuel candle. The reason for the excess fuel is hidden either in violation of the rules of the model of the model, or in the wrong adjustment of the carburetor.
  • The candle was covered with a black soil. This may indicate the use of poor.quality oil (therefore use only the original oil for your saw), incorrectly adjusted carburetor or improperly prepared fuel mixture. The candle needs to be washed, well peeled from the car with an awl or needle, wipe the electrodes with a skin and screw it into place.

When checking the candle, pay attention to the gap between the electrodes (it should be 0.5. 0.65 mm). Worn gasket must be replaced.

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