Chainsaw shoots at the carburetor cause

There can be many breakdowns associated with a chainsaw, and some can be quite difficult to solve. If you have been working with this gas tool for a long time, you have had a problem when gasoline does not enter the carburetor or it enters, but it is very difficult and does not allow the chainsaw to start normally. Fortunately, experts have long found the causes of such a breakdown and therefore we have compiled the main repair methods.

First of all, we check the banal reasons, for example, the presence of gasoline in the tank. If there is one, we check the process of supplying fuel from the tank through the wire. To do this, just disconnect the gas line from the carburetor and try to pump fuel. It will be correct to supply fuel through the hose in jerks, this will make sure that there are no problems with the gas tank. If the fuel is not supplied even jerkily or drips too slowly, the reasons may be as follows:

The fuel filter is clogged with dirt and dust;

The fuel supply channel is dirty.

Poor quality gasoline

Every experienced chainsaw user knows that the fuel in the tool tank should not be left for a long time. The fact is that during long-term storage, unnecessary processes will occur inside the tank with the formation of resin and the polymerization of various components. Do not leave fuel in the tank for more than 2 weeks, and even if your tool starts on such fuel, this can lead to carbon deposits on the CPG parts (rings, piston).

Air filter

If the chainsaw does not supply gasoline to the carburetor, pay attention to the type of air filter. Due to its improper operation, the unstable operation of the chainsaw begins, which is then difficult to start or stalls during operation. Air is more difficult to enter the device and makes the mixture too rich. You are unlikely to be able to start it, and the reason for this is the formation of dust.

You need to carefully remove the air filter, because if dust is stored on it, it can crumble onto the carburetor. The air filter should be cleaned well with water and detergent. Be sure to dry the filter before installation.

Why is the chainsaw not getting gas?

According to the reviews of the owners of Chinese chainsaws, the equipment breaks down quite often and the breakdown is accompanied by a lack of fuel supply to the carburetor. If you have applied the above tips, you need to diagnose the following elements:

Carburetor needle. On cheap chainsaws, a needle in the carburetor often sticks, which prevents fuel from flowing. Sometimes it is enough just to move the needle and set it correctly.

Oil seals. Chinese and even branded chainsaws may have low-quality oil seals with poor tightness. Fuel stops flowing when the fuel mixture begins to squeeze out through the seals. Gasoline leakage is quite possible through the seals.

Breather check

It is the breather that plays a serious role in starting a chainsaw; you can find such a part near the gas tank cap, or rather, in the area of \u200b\u200bthe air hole. The breather performs a simple but important role - it does not allow fuel to flow out and sets the correct air pressure. It is thanks to this air that fuel enters the carburetor, and a malfunction of this element is a common cause when fuel does not enter the chainsaw. A disturbed breather will create a negative pressure, from which gasoline will not be able to flow to the carburetor when trying to start the tool.

Checking the breather is quite simple, disconnect the gasoline pipe from the carburetor and check how the fuel flows. If gasoline flows in a small stream, everything is in order, if it does not flow at all, the breather is more likely to be clogged with dirt. If done correctly, you can clean the part, sometimes it's easier to replace it with a new one. The cleaning procedure is carried out either manually or by supplying a strong jet of compressed air.

Video

Malfunctions of the Husqvarna 142 Chainsaw

DIY chainsaw repair Husqvarna 137, 142, 240, 365 - video

The chainsaw is an indispensable assistant for every real owner.

Since the instrument's inception, its popularity has grown rapidly.

So, the Husqvarna 142 chainsaw has the highest functionality. It is widely used not only in forestry, but also in household plots.

Choosing a chainsaw is quite simple. So, it is best to focus on well-known brands such as Husqvarna. This company produces a wide range of such tools. Husqvarna 240 and other models are of the highest quality and functionality. But, unfortunately, even such tools are not immune from breakdowns.

Possible malfunctions

After the chainsaw appeared in the house, many owners breathed a sigh of relief.

After all, this tool allows you to solve complex problems quite quickly and simply.

But, here it is worth considering that the chainsaw often fails. This is due to the fact that it is subjected to enormous loads during operation. Therefore, you must always be ready to eliminate breakdowns.

Now there are a huge number of workshops that offer their services for the repair of chainsaws and other tools. But, this does not mean that when a malfunction occurs, you must immediately run to the repair shop.

Some malfunctions can be removed by hand. To do this, you just need to know the main prerequisites for the appearance of breakdowns and the method for their elimination.

READ Chainsaw Huter Bs 45 Carburetor Adjustment

So, in the process of frequent use of the tool, breakdowns may occur:

carburetor;
muffler;
oil pump;
ignition and fuel supply systems.

Each of these breakdowns can be repaired with your own hands . The main thing is to know the sequence of work when eliminating a particular malfunction.

Read an article about self-repair of the Stihl 180 chainsaw here.

Ignition system

If the tool suddenly stops working, then the first thing to check is the ignition system. And you need to start with a candle.

Work must be done very carefully. For this, a special hook is used. First you need to disconnect the wire and remove the candle.

If it is dry, it means that the cylinder is not getting fuel.

Dismantling assembly chainsaw HUSQVARNA 142

Why the chainsaw

.Cause.How to fix.

The chainsaw does not start or starts poorly. Cause and how to fix it.

common husvarna problem 137/142

Malfunctions in the fuel supply system

If the tool does not work, then this may be due to the fact that the cylinder is not receiving fuel.

First of all, you need to check the fuel filter for contamination. To check this, you need to remove the fuel hose and check how fast the fuel flows.

If it is fed under a little pressure, then the problem lies precisely in the filter.

In this case, you need to clean the filter. It comes directly from the tank. The filter is cleaned and installed back. It is washed under running clean water.

After that, the filter is dried and carefully installed back. To prevent the occurrence of such a problem in the future, it is necessary to periodically clean the filter.

If cleaning the filter did not give a positive result, then you should pay attention to the breather. Clogging of this hole leads to the fact that not enough air enters the carburetor.

READ How to Start a Stihl 180 Chainsaw

Muffler and carburetor failure

With frequent use of the chainsaw, muffler malfunctions may occur. It is very easy to determine this.

If the tool works normally, and starts to stall as the speed increases, then the reason is the spark arrester.

Most often, the breakdown of this element as a result of clogging with combustion waste. You can easily solve this problem with your own hands.

First of all, you need to remove the muffler and disassemble it. It is worth considering here that in some models, spark arresters are not disassembled. After that, the muffler is cleaned of soot. To do this, use special detergents.

When the deposit is removed, the spark arrester is dried with a hair dryer. At the final stage, the muffler is installed in place.

As for the carburetor, its adjustment and repair can be done at home. But in order to perform such work efficiently, you need to know the structure of the carburetor and the principle of its repair.

Poor repairs can cause serious damage to the device. Therefore, experts recommend that it be adjusted and repaired in special workshops.

As you can see, it is fashionable to fix many chainsaw malfunctions with your own hands. But to do this, you need to have certain information. If you are not confident in your abilities, then it is better to seek help from specialists.

Watch the video in which the specialist shows in detail the disassembly-assembly process for do-it-yourself repair of the Husqvarna 142 chainsaw:

Chainsaw engine malfunctions

The engine is the main unit of the chainsaw, and most of the breakdowns that occur in it are related to the gasoline drive. Proper diagnostics can determine the causes and troubleshooting even for an untrained user.

The main problems with starting the engine can be the following:

the engine does not start;
works unstable;
start-up occurs, after which the unit immediately stalls;
bogs down under load.

Ignition system malfunctions

First of all, the reason that the chainsaw does not start must be sought in the ignition system of the unit. You need to start by checking the candle, since there is a possibility that the spark has disappeared.

Causes of chainsaw malfunction

If the chainsaw does not start, then you need to carry out step-by-step diagnostics. It is recommended to go from simple to complex and do everything in order. Although devices from different manufacturers differ from each other, they have the same principle of operation and layout: they are based on a two-stroke gasoline engine that turns a tensioned cutting chain through a gearbox.

Diagnostics must be carried out sequentially:

Inspection of filters.
Checking the electrical system (is there a spark on the spark plug electrode or not).
Revision of the fuel supply and breather, which is built into the fuel tank cap.
Research of channels for release of the fulfilled gases.

Each of the four stages must be considered separately.

What you need for repair:

Set of car wrenches, knobs and heads.
Screwdrivers: Phillips and slotted, flat spatulas for cleaning parts.

Metal brush (cord brush) and brushes with hard bristles.
A bowl for washing parts (a cropped plastic canister is suitable).

It is recommended to use a compressor to purge motor parts. The use of technical gases (especially oxygen) is prohibited.

Filters

Dirty filter on the chainsaw
If the chainsaw has been running for a long time, then the air or fuel filters may be clogged. In the first case, the required portion of air will not enter the cylinders, and the combustion of the fuel mixture will not occur. If the fuel system is clogged, the supply of gasoline mixture will stop.

The air purifying element must be removed carefully to prevent dust from entering the carburetor. The element must be blown out, washed with soap and water, dried and reinstalled in the same way.

To check the condition of the fuel filter, you need to remove the hose from the carburetor, try to pump fuel manually. If the trickle is too weak or completely absent, then the filter needs to be replaced or washed. You can purchase a new one from a dealer, or go to a power tool repair shop.

Checking the candle

It may be necessary to put in new spark plugs.
The operation is similar to that carried out by all motorists with gasoline engines. If there is a new and 100% working candle in stock, then the easiest way is to put it in and try to start the chainsaw. At the same time, the old one should be examined: strong soot indicates that the engine is not working properly. If there are no deposits, the gap between the electrodes may have been broken, due to which the spark stopped forming or was too dim. The distance between the contacts varies between 0.2-0.5 mm.

Why soot is formed:

Mistakes made when adjusting the carburetor.

Too much oil added to the mixture.

The air filter was clogged.

The verification algorithm is simple:

Remove the high voltage wire.
Unscrew the spark plug and attach the previously removed wire back to it.
Lean the "skirt" of the candle against the unpainted part of the cylinder.
Try to start the motor.

You can try to disassemble the ignition unit, clean the contacts, dry it, assemble it and try again. A number of faults cannot be fixed, so in some cases the unit will require replacement, but this is an extreme measure.

Supply of gasoline. Breather

One of the most difficult stages of verification.

First you need to prepare a workplace:

Remove dirt and dust from workbench.
Prepare clean rags, brushes, containers for washing small parts.
If there is a compressor, prepare it to purge the carburetor channels.

The chainsaw itself needs to be cleaned and blown with compressed air. Now you can start diagnosing.

Chainsaw chain problems

In addition to problems with the engine, the chainsaw may have problems in operation due to a malfunction of the cutting (sawing) assembly, which consists of an oil pump, bar and saw chain.

Tire not getting oil

Usually, if oil is not supplied to the chainsaw chain, it is necessary to check the channels through which oil is supplied to the tire and clean them of dirt. If the previous steps did not find the cause of the problem, then you will have to check the oil pump. For this you need:

remove part of the chainsaw casing;
remove the clutch;
unscrewing 3 screws, remove the cover hiding the pump;
get to the worm gear, which rotates the pump shaft.

If the thread on it is worn out, then the shaft does not rotate, the pump does not work, the chain is not lubricated. A worn gear needs to be replaced. You can also pull out the oil pump itself and manually try to pump oil through it. If it does not pump, the pump should be replaced.

Chainsaw oil filter

Remember to remove the oil filter from the reservoir and clean it if necessary.

Also, the lack of lubrication may be due to its leakage. You should check how tight the pipes coming from the oil pump are connected. If the tightness is broken, the tubes are replaced with new ones.

The chain breaks

If the chain broke during the operation of the chainsaw, then this could happen when it hit a hard object, for example, a nail. If the chain is constantly breaking, then the reasons may be as follows.

Poor quality of the metal from which the saw chain is made. It is necessary to buy saws for power cutters from well-known brands.
Chain overheating due to poor lubrication. As a result, the saw overheats, the properties of the metal change, and it breaks under load. A check of the entire chainsaw lubrication system is required (discussed above).

You can also learn about the causes of frequent open circuits from this video.

Chain does not turn

This trouble often haunts inexperienced chainsaw owners. They forget to release the brake after starting the engine. As a result, the chain does not spin, the brake system overheats, and the clutch mechanism fails. The problem is solved by removing the saw from the brake. If the clutch hasn't burned out, you will notice the chain spinning. Otherwise, the clutch mechanism will need to be replaced.

Chain dulls quickly

Basically, the reason that the chain becomes dull quickly is the poor quality of the saw. Trying to save money on buying branded chains, chainsaw owners buy saws from unknown manufacturers, or, out of inexperience, acquire fakes for well-known brands. It is best to buy a cutting element for a gas cutter in company stores. Stihl saw chains (Calm) are very popular among the owners of this equipment.

The chain won't stop

If, when working with a chainsaw, you notice that the saw chain does not stop at the right moment, then this breakdown may have 2 options.

The brake band is dirty. When the saw is operating, dirt, sawdust, dust, etc. can get under the band. As a result, the brake mechanism is blocked, and the chain does not stop when the gas is released. The problem is fixed by cleaning this node.
The brake band has worn out. It is necessary to replace this element of the brake system.

Chain sticking

This happens when the drive or driven sprocket wears out. The chain usually begins to wedge under load. But without load, the saw can rotate. The photo below shows a worn chainsaw drive sprocket.

The next photo shows that the reason why the chain is wedged must be sought at the location of the driven sprocket.

Why is oil flowing

Many owners of chainsaws are faced with such a problem as oil leakage from under the unit. Most often, oil leaks due to damage to the oil hose connected to the oil pump. The photo below shows exactly the case when the end of the hose is torn and does not fit tightly on the pump nozzle.

But to get to this place, you will need to remove the clutch mechanism from the shaft. In some models of chainsaws, oil may leak at the junction of the oil pump with the oil tank hose (indicated by an arrow in the photo).

To repair a lubricant leak, you will need to pull this hose out of the landing site. To do this, you can use pliers by pulling on its outer part. At the end of the hose you will see a rubber plug, which is the reason for the oil to leak out. This plug must be wiped well to remove oil residues, after which its seat must be sealed with something. You can use automotive sealant or fum tape, as shown in the following photo.

Next, insert the hose into the hole, put the plug back in place and seal it using a flathead screwdriver. At this point, the oil leak repair operation can be considered completed.

Why does a chainsaw start badly

fuel and air filters;
reduced compression;
carburetor adjustment;
spark plug;
ignition coil;
gap between the ignition coil and the flywheel;

Let's consider each reason in more detail.

Fuel and air filter

Contamination of the main filter elements of the chainsaw adversely affects its operation.

For example, a dirty air filter will not provide enough air to the carburetor, which will affect the quality of the air-fuel mixture and normal engine starting. A dirty fuel filter will make it difficult or even block the supply of gasoline to the carburetor and make it impossible for the engine to work.

Reduced compression

One of the frequent cases of difficult start-up of a chainsaw is the wear of the CPG (cylinder-piston group).

As you know, for a chainsaw to start normally, compression must be present in its engine. It is necessary for the normal compression of the fuel mixture in the engine cylinder, it also affects the operation of the fuel pump.

During the operation of the tool, the value of the compression index drops, and the chainsaw starts to start poorly.

The reasons for the lack of compression, or its decrease, may be natural, because. the engine wears out during operation. Also, problems can be caused by a serious breakdown, for example, a CPG scuff, or a broken piston ring.

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

Carburetor adjustment

Incorrect adjustment of the carburetor will cause the chainsaw to not develop full power. It won't start well, or it won't start at all. Carburetor tuning directly affects the quality of the air-fuel mixture, which is necessary for the normal start and further operation of the engine.

If the carburetor is not adjusted correctly, there will be more or less gasoline in the fuel-air mixture than required, and the mixture will not ignite even with normal sparking.

Excess gasoline in the mixture is called overflow. A characteristic sign of overflow is a wet spark plug, after several unsuccessful attempts to start the chainsaw.

Spark plug

The spark plug is one of the main elements of the ignition system. A spark is formed on its electrodes, and if this element fails, it will be difficult to start, or not possible at all.

The spark plug may fail completely, either intermittently or produce a weak spark. Checking the candle is quite simple, for this you need to unscrew it from the engine, attach it 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. A weak spark with a reddish tinge is a sign of a problem. A defective spark plug must be replaced.

Ignition coil

The reason that a new chainsaw does not start, or starts poorly, may be the ignition coil. Modern chainsaws are equipped with electronic ignition coils. This part is not subject to repair, and, as a rule, if there is a defect, it is completely changed.

Gap between ignition coil and flywheel

An incorrectly set 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-up and stable operation of the engine.

Chainsaw Shoots Carburetor

Content

The chainsaw does not start: causes and solutions

Today, it is probably difficult to find an owner who would not have such a versatile, practical, and multifunctional tool as a chainsaw.

This device is deeply rooted in everyday life, and this is not surprising, because the chainsaw has become for us simply an indispensable assistant in the field of cutting wood of various types, harvesting firewood for the winter, sawing trees, and it is also used in the construction industry, etc.

Naturally, one can talk endlessly about her positive aspects and she copes with her task just superbly . But, like any technique, no matter how unique and highly practical it is, it fails over time and this is normal. Chainsaw "Ural", why does it shoot at the carburetor? Cause of failure, consequences. Why does a chainsaw shoot at a silencer. The most important thing at this moment is to correctly determine the cause of the malfunction and quickly eliminate it.

Naturally, you can turn to various kinds of services that, for a fee, will put your equipment in order. But in doing so, you will have to pay a significant cost. What for? After all, you can try to determine the degree and cause of the breakdown and fix it yourself.

Since there are such minor breakdowns that can be fixed within five minutes. It is about them and how to eliminate them that we will talk in this article.

Factory device

The first and practically the main element of the chainsaw is the engine, namely the two-stroke carburetor (see carburetor adjustment). Its direct power is varied, it all depends on the model of the device and its intended purpose.

Chainsaw headset The second no less important part of the tool is the headset (saw) which consists of a chain (cutting), tire, sprocket, wheel (chain) . It is worth adding to this that completely different manufacturers provide their own specific range of this headset.

It is important that it always needs to be selected directly from the specific characteristic data of the engine. Since the larger the pitch of this kind of headset, the deeper the incision of the chainsaw will be, one can even say that the more powerful and productive it will be. Often, chainsaw owners think about why the chainsaw shoots at the carburetor, or why does gasoline not enter the chainsaw carburetor? But do not forget that for the full operation of the device, the engine should also not be inferior to it in terms of power.

Its lubrication is carried out by means of special oil directly from the second tank, which is located on the hand block. It is worth noting that the mass of this kind of tank has such features that oil and fuel , which is intended for the engine, run out at the same time.

READ Chinese Chainsaw Disassembly

We figured out the general outlines of the device, and most likely with its basis, and now it's time to start understanding why the chainsaw stopped working, what could be the reasons for this and how to eliminate them.

Causes and remedies

Undoubtedly, after reading this heading, you continue to read this paragraph and this is not surprising.

Since most owners of chainsaws, it can even be said with some certainty that almost every owner has encountered the fact that the device either does not start at all, or there are “signs of life”, but it immediately stalls.

In fact, there are a lot of reasons for this kind of failure in the operation of the tool, and now we will try to deal with the main ones. So let's get started:

The chainsaw starts and immediately stalls

The cause of this kind of malfunction may be the flooding of a direct candle at the very moment when you are trying to start the chainsaw. Since a significant amount of gasoline is collected precisely between the electrodes of the candle, therefore, a spark cannot be created. You can fix this kind of breakdown yourself, and you do not have to contact specialized services. Chainsaw candle To do this, simply unscrew the candle itself and dry it . You can also try to heat up, it will not be superfluous, but remember that this kind of manipulation must be carried out exclusively through a gas burner.

Otherwise, a specific deposit may occur on the surface of the direct electrodes. In the meantime, while your spark plug dries, you need to drain the excess fuel directly through the hole and leave to dry for about half an hour.

Bad cold start

The answer to this question is unequivocal - there is no compression. What happens is that the rings, most likely, simply wore out due to long operation, therefore, when you try to start the device directly in a cold state, there is not enough compression to start it directly. Pull the handle jerky But given that most “literate” people begin to systematically pull the handle, while the rings produce friction on the sleeve, therefore, oil with gasoline gets on them, the compression ratio rises and the engine starts. And when the chainsaw is already warmed up, then of course it will start to start.

The chainsaw does not start or starts poorly. Cause and how to fix it.

Why the chainsaw

.Cause.How to fix.

Shoots either at the carburetor or at the muffler

I tried to explain why there are pops in the muffler at idle and whether it is necessary to remove the longitudinal

But this kind of manipulation is quite harmful to the device , since several times you will achieve the desired effect through such actions, but the time will come when the chainsaw can finally break down. Therefore, the best thing you can do is to change the rings that are already worn out. This is not a complicated process, so you can completely handle it yourself without using the services of the service.

Why won't it start when hot?

Before starting to solve this problem, it should be noted that the productive and correct operation of the engine depends primarily on speed through the use of a starter mechanism. In most models, this “minimum” level is 800 rpm. The air stops flowing into the carburetor in the right amount, the “calm” chainsaw. It is also important that the main reason for the "not factory" chainsaw is the usual flooding of the engine. Air damper In order to eliminate this problem, it is necessary first of all to put the damper (air) in the middle position. After that, blow the chainsaw a couple of times. After the process has begun, warm it up within ten seconds, and then switch to the stroke (idle) mode. After carrying out these manipulations, you can completely open the damper (air).

READ What RPM Should Be On The Circular

After that, it is worth noting that before starting the direct execution of actions regarding the “prescribed recommendations”, try to start the device directly in the idle position. To do this, just pull the "rope" . Since in the event that the engine is not hot, the plant will be produced without any problems.

But if nothing works out for you, it means that it has already cooled down enough. In this case, fix the half-gas according to the instructions in the instructions that came with your chainsaw.

But if this does not help, in this case, you should directly turn the cold-running screw, directly clockwise.

Remember that the higher the rpm level in your device, the easier it will be for you to start the device. Why does the chainsaw shoot at if the chainsaw does not start or shoots at the carburetor. And remember that the chain must be stationary relative to the cold stroke.

Chinese chainsaw won't start

First of all, what I would like to note is that Chinese devices are quite reliable and powerful, at least as practice shows. And the reasons for its breakdowns are not much different from all other models from other manufacturers. But there is one feature that does not tolerate negligence regarding Chinese manufacturers' chainsaws, namely the fuel that is poured directly into it.

It is the low quality of the fuel and oil that is used to prepare the mixture that is the main and probably the only reason that you cannot start a Chinese-made chainsaw.

Since many "wise men" believe that the main thing is to fill in, and what to fill in does not matter, and so it will do. A chainsaw is also needed in construction, as a result, more fuel enters the carburetor. And then they wonder why the device does not work.

Therefore, special efforts are not needed to eliminate this problem, simply use the oil and gasoline of that chainsaw and everything will be fine. See the video for more details:

New chainsaw won't start

In fact, in principle, there should be no problems with a new chainsaw, since all spare parts are only from under the machine and are not subject to wear. The chainsaw shoots at which fuel is supplied to the carburetor from the gas tank. The only reason that the device does not work can be either a factory defect or you are doing something wrong in relation to the instructions in the instructions. In order to fix this kind of problem, carefully check whether you “screwed and attached” everything correctly.

READ How to Choose a Chainsaw Chain File

In addition, an important factor in the malfunction of the tool may be that you have prepared a mixture in the wrong proportionsconsisting of oil and gasoline. Either you filled in such basic “additives” of poor quality, which certainly affects the operation of the chainsaw, or it is completely from the wrong manufacturer that produced your tool. Instructions for using the chainsaw Read the instructions carefully again, and then check to the millimeter each of your actions with the chainsaw. Read the instructions on how to properly break in a chainsaw.

There is a spark, the candle is wet

First of all, it is necessary to remove the muffler and carefully inspect the piston, since this is where the problem may be hiding. In addition, most owners are wondering: why does the chainsaw start and stall, while supposedly there are no problems with candles?

But this is an erroneous opinion and you don’t need to be so sure in this case, because there are situations when the candle sparkles beautifully in air, but does not work directly in the cylinder.

The reason for this may be a direct violation of a kind of compaction in the area of \u200b\u200bthe channel (impulsive) . Or so de there is a kind of development of crankshaft seals, but this feature occurs in very rare cases. Repair of a chainsaw by a specialist But if you notice a similar malfunction of your chainsaw, then do not put off the repair indefinitely and it is best if it is done by professionals. Otherwise, you just simply can "break" the piston.

The price of Stihl chainsaws starts from 8000-10000 rubles. At the same time, they are world leaders in the production of chainsaws.

The Stihl ms 660 chainsaw is the most economical of the entire Stihl chainsaw line. Its price ranges from 3100 to 5500 rubles.

Summing up…

A breakdown of equipment is undoubtedly a very unpleasant and upsetting incident for its owner. But do not despair ahead of time, because if your chainsaw is in need of repair, then this is just a matter of time. In this article, you were able to get acquainted with the most common problems regarding chainsaw malfunctions, as well as options for fixing them at home.

Most importantly, if you want your tool to always be in working order, and there were no problems with its operation, just keep an eye on the technique . Often look directly into its "inner" area. Maybe some part will wear out soon, maybe something needs to be cleaned, etc. Read how to sharpen the chain with your own hands

In fact, this kind of manipulation is not complicated and can be performed periodically. But this is a “plus” for you in the first place, since a breakdown will not catch you at the most inopportune moment, when you need to do a huge amount of work and you do not have to waste time solving problems associated with a breakdown.

Source

Chainsaw does not start well when cold

Violation of the sequence of actions when starting on a cold

If a new chainsaw does not start on a cold one, then the reason may be in the wrong sequence of starting the engine. As a rule, each manufacturer in the instructions for the chainsaw indicates the procedure for starting the chainsaw on a cold one. Basically, it is similar for all two-stroke internal combustion engines that are installed on chainsaws, and is the following procedure.

Closing the air damper (required for fuel enrichment at start-up).
Fuel suction using a special primer for this (on some models of chainsaws, the primer is not provided for by the design, and therefore this item is not available for them).
Turning on the ignition (if you forget about this, you can mistakenly consider the tool to be faulty).
Carry out several movements of the starter, until the first “flash” of the engine (it is important not to miss this moment, otherwise it is possible to “fill in” the engine).
Set the air damper to the open position.
Start the chainsaw engine.

Fuel problems

As with the difficult hot start option, problems in the fuel system can affect starting or not being able to start even when cold. Carburetor adjustment, fuel filter and line contamination are all reasons that cause difficulty starting.

Carry out diagnostics of the fuel system, this is the first thing you need in case of difficult cold start.

It is worth paying attention to the quality of the fuel, because. when using a mixture of gasoline and oil, which contains a small amount of water, starting may be significantly difficult or impossible.

The mixture must be used fresh enough, because. when storing gasoline diluted with oil for more than a month, its properties are lost and complicates starting, both on a cold and on a hot engine. For this reason, gasoline can burn poorly.

Engine malfunctions

CPG scoring, ring sticking, CPG wear, air leaks through seals and gaskets, compression reduction, all these problems can make starting a chainsaw impossible or significantly difficult. For example, if the CPG is not significantly worn, the compression in the engine decreases. In this case, starting on a “cold” one will be much more difficult, or the saw may stop, the tool will start well.

Accurately diagnosing problems in the engine associated with problems in its start is quite difficult, and it is better to contact a specialist in this field for this.

No Gasoline Coming To Carburetor Chainsaw Partner

Gasoline does not enter the chainsaw: a solution to the problem

You will like a huge number of breakdowns associated with a chainsaw, and some are quite difficult to solve. If you work with this gas tool for a long time, you have had a problem when gasoline does not enter the carburetor or it does, but it is very difficult to prevent the chainsaw from starting normally. Modern, specialists have long found the prerequisites for such a breakdown, for this reason we have compiled the main repair methods.

First of all, we check the obvious prerequisites, for example, the presence of gasoline in the tank. If there is one, we check the fuel supply from the tank through the wire. It is enough to disconnect the gas line from the carburetor and try to pump fuel. It will be correct to supply fuel through the hose in jerks, this will make sure that there are no problems with the gas tank. If the fuel is not supplied even jerkily or drips very slowly, the preconditions occur in the following:

Fuel filter clogged with dirt and dust;

The fuel supply channel is dirty.

Mind-bogglingly, even having a full tank will be a prerequisite when there is no fuel coming in. Therefore, try not to fill the tank completely. An overfilled fuel tank can pressurize the tube that connects to the carburetor.

READ Chainsaw Foreman Carburetor Adjustment

Poor quality gasoline

Who is the most experienced chainsaw user knows that the fuel in the tool tank cannot be left forever. What exists is that during prolonged storage, unnecessary processes will occur inside the tank with the formation of resin and the polymerization of various components. Do not leave fuel in the tank for more than a half moon, and if your tool starts on such fuel, this will lead to carbon deposits on the CPG parts (rings, piston).

Why does gasoline not flow from the chainsaw tank to

carburetor

? There is only one reason, the formation of a vacuum in the tank. Solving the problem, pull out the white plug, clean it.

Chainsaw won't start cause

Not

the chainsaw
starts up .
Chainsaw
MAX 3216
no
signs of life. The cause of the error has been found.

Air filter

If the chainsaw does not get gasoline to the carburetor

, pay attention to the type of air filter. Due to its improper operation, the unstable operation of the chainsaw begins, which is later difficult to start or stalls during operation. Air is more difficult to enter the device and makes the mixture too rich. You are unlikely to be able to start it, and the reason for this is the formation of dust.

READ How to Make a Chainsaw Quieter

You need to carefully remove the air filter, because if dust is stored on it, it can crumble onto the carburetor. Air filter

clean enough with water and detergent. Be sure to dry the filter before installation.

Why is the chainsaw not getting gas?

Carburetor needle. On cheap chainsaws, a needle in the carburetor often sticks, which prevents

fuel. Sometimes it is enough just to move the needle and set it correctly.

Breather check

It is the breather that plays a serious role in starting a chainsaw; you can find such a part near the gas tank cap, or rather, in the area of \u200b\u200bthe air hole. The breather performs a simple but important role - it does not allow fuel to flow out and sets the correct air pressure. It is thanks to this air that fuel enters the carburetor, and a malfunction of this element is a common cause when fuel does not enter the chainsaw. Disturbed operation of the breather will serve as the formation of negative pressure, from which gasoline

will not be able to go to the carburetor when trying to start the tool.

Source

Chainsaw stalled and won't start

If the tool stalls and does not start, first you should check the presence of fuel in the tank. Strange as it may sound, but many people forget about it, and when a similar situation arises, they immediately try to repair the instrument, which can lead to serious damage.

In a situation where the saw has stalled, and there is still gasoline in the tank, you need to evaluate how the saw worked up to this point. Maybe when working at the last moment there was an extraneous sound, rattle, ringing, there was a loss of power or the tool stopped abruptly. All this allows a preliminary assessment of the situation.

Engine jammed

Quite often there is a situation when the saw was working and abruptly stalled, the cause of which was the jamming of the engine, which in turn occurred as a result of a broken piston skirt, destruction of the crankshaft bearing, a snap ring of the piston pin or a break in the piston ring.

A seized engine can be easily identified by pulling the starter cord. In the case when the starter does not turn, most likely it is jammed, and further repairs are possible only at a service center.

Fuel line break

During operation of the chainsaw, vibration occurs, which can cause damage or a break in the fuel line of the chainsaw. In this case, the chainsaw will stall and it will be impossible to start. To diagnose a malfunction, you need to inspect and determine the presence of fuel smudges.

Overheat

Overheating of the engine during operation can cause the saw to stall and not start. Overheating is quite dangerous, as it can cause the piston in the cylinder to melt and seize the engine. In the first cases of overheating, it is worth diagnosing the tool for the presence of foreign air leaks into the engine, and adjusting the carburetor.

Air leaks, as well as incorrect adjustment of the carburetor, affect the maximum number of engine revolutions and its lubrication, which in turn causes overheating and wedging of the tool.

Video

The main reasons why the chainsaw does not start on the video. The video will be useful to those who quickly want to start a saw, the author gives good advice.

If a situation arises when the chainsaw does not start, it is important to correctly diagnose, determine the direction in which to look for a malfunction. Do not use a tool that does not idle, as this indicates the presence of air leaks into the engine and can lead to serious problems. If experience in repairing chainsaws is not enough, it is better to contact a specialist who will save you time and nerves.