Reasons why a chainsaw does not start and stops
A chainsaw has long been an indispensable tool, not a luxury for those who have a garden or a home. But, like any other equipment, this tool tends to malfunction, despite the uncomplicated device.
The classification of the main faults includes:
- complete absence of engine starting
- Engine starts and stops
- Unstable tool operation
- stoppage of work on load
- loss of power.
If the chainsaw does not start at all, the cause may be the following:
- Production fault
- Lack of fuel
- Problems with starting the ignition system
- No spark from the spark plugs
- Poor quality fuel mixture
- Clogged carburetor
- Problems with the high-voltage wire
- No compression.
Why the chainsaw starts and stops, what to do in such a case? It is necessary to consider in detail the reasons for this.
Chainsaw starts and stalls: cause, video
The reason that the chainsaw can stall immediately after starting is due to a malfunction in a certain piece of equipment.
- The most trivial reason why a chainsaw starts and stalls can be a low fuel level in the tank. It can also be caused by the tool stopping when you tilt it and the fuel residue piling up in a certain area of the fuel tank. Poor-quality fuel can also cause problems with the chainsaw’s operation, in which case it must be completely replaced.
- A clogged breather, which greatly reduces the fuel flow to the engine.
- Insufficient contact between the spark plug wire cap and the spark plug which causes the spark plug insulator to become very hot. Deterioration of contact can be caused by mechanical shear or fouling.
- Failure of spark plugs.
- Muffler clogging, which causes deterioration of exhaust gas output, leading to engine stalling. This can cause the chainsaw to start and stop when idling. Sludge in the muffler can also be a result of poor fuel quality or improper use of the tool.
- Poor carburetor adjustment.
- Piston group failure
- Problems with the fuel filter or pump. Gasoline may be leaking through the pump or flowing poorly through the fuel filter to the carburetor. As a result, the chainsaw starts and shuts down when the rpm increases.
- Contamination of the air filter. Problems with this piece of equipment lead to the fact that, with increased loads on the engine, it simply can not cope with them due to clogging and stops. A similar result is also obtained when the rpm is increased.
- Chain shorting due to lack or insufficient lubrication, or chain brake malfunction.
Chainsaw stalls when idling
The situation when the engine stops at idle rpm can be divided into 2 types: immediately after starting and after sawing. The second option involves shutting down “hot” and is described below. For now, let’s consider the first situation, when the chainsaw does not develop speed and stops almost immediately after starting.
This may be caused by a sudden stop of the engine after it is started, if the carburetor is not feeding enough or just too much fuel, flooding the spark plug pins. In case of a mixture shortage, pay attention to the fuel hose, which should be tight on the carburettor and primer. A dirty filter attached to the end of the hose in the tank can reduce fuel supply.
Regarding adjusting screws. On the carburetor there can be 3 of these: H (High. high) to adjust the high revolutions, L (Low) to adjust the low revolutions. low) for low revs and T (may be marked LA or S) for idle speed. We need the L screw, which should be turned half a turn clockwise. If this does not have the desired effect, try turning the same screw 1 turn counterclockwise. In most cases this calibration solves the problem if the chainsaw stops when idling. The causes of this malfunction are usually limited to an imbalance in the air-fuel mixture.
Chainsaw stalls on throttle trigger
One of the most common problems occurring due to tool contamination or improper fuel oil proportions. If your chainsaw starts normally but shuts down when you add gas, it is usually because the fuel, air or exhaust ducts are not working properly. The system is simply unable to deliver or evacuate substances sufficiently, and as a result the operating rhythm is disturbed and the engine stops. Consider each potentially problematic component individually.
The air filter is located in the closest reach, under the upper housing cover. The filter fixed on the carburetor can be made of nylon or ferrite. Products from the first group, it is sufficient to wash in soapy water and dry. If the felt filters get dirty, it is advisable to replace them with new ones, as this material is not easily cleaned. Determine the need for maintenance, you can visually determine by the abundance of contaminants.
The fuel filter is fixed on the hose of the same name which is located loosely in the fuel tank. To remove this element, it is better to use a metal hook, which is convenient to catch on the fuel hose. The level of contamination of the filter cannot always be determined visually, and if there are no obvious signs, you should estimate the amount of time it has been in service. With an average intensity of work, the filter can be used for about 100 hours, after which it should be replaced with a new one. When choosing this part, it is better to give priority to products made of felt or polymers.
Exhaust system, with a heavy accumulation of soot, reduces its capacity to remove the burned substances. In this case, the engine starts to choke and choke at high RPM. To remove, clean or replace the element, it is enough to unscrew a couple of nuts that press the muffler to the engine. A metal brush or sandpaper is good for cleaning the element. The frequency of maintenance of the muffler depends on the frequency of use and the quality of fuel. If you use your saw for normal, heavy-duty work, it’s a good idea to check your exhaust system once a year.
Among the most serious problems, for which the chainsaw stops at high RPM, you can highlight the formation of scoring on the piston. Such defect occurs when there is a lack of oil in the fuel mixture, which increases the friction of the engine components. It is possible to check the piston wear theory by simply filling up the saw with a quality mixture prepared in the correct proportions of the recommended gasoline and oil (the proportions and brands are specified for each model of chainsaw in the individual documentation). If the engine is running, special attention must be paid to the quality of the fuel in the future. Otherwise the scoring will increase and a complete overhaul with replacement of the piston group will be necessary.
The chainsaw won’t start: top 3 main causes of breakdowns
The chain saw starts, but stops when you press the gas
If you can get your chainsaw going but it fails to start after a short while, the first thing to do is to check for fuel. Many people forget that the fuel in the tank is not eternal and immediately try to look for the causes of failure. If you can’t get the chainsaw to start, but it still has fuel, get a good evaluation of how the tool operates before the problem started. Perhaps there was an abnormal sound, rattle, ringing, there was a loss of power or something else.
Breakage of the fuel line
The chainsaw vibrates a lot when you are sawing and this can cause a rupture in the fuel line. In order to diagnose the problem, you need to inspect the saw for fuel mixture leaks. In Chinese models, this problem is common.
Why the chainsaw doesn’t rev up and shuts down?
If the saw does not develop power and rpm, check the carburetor or crankcase for leaks. It is also necessary to check the carburetor for leaks if the saw fails to operate when the gas is pressed. Another nuance to check is the fuel tank breather, which may also influence the fact that the saw doesn‘t rev.
The chainsaw is delivered disassembled (the bar and chain are detached from the block with gasoline engine). In addition to the chainsaw itself in the kit has a pair of keys (for chain adjustment and spark plug), a plastic cover on the bar and instructions. The chainsaw is assembled without any problems in a short time.
About chainsaws, Huter, all jams and the first breakdowns. what weaknesses were found?
The most important thing in any chainsaw is an engine and a guide bar with a chain. Huter BS-45M has a two-stroke carburetor single-cylinder air-cooled engine. Two-stroke engines use a special fuel mix, unlike four-stroke engines (like in a car). The fuel mix consists of gasoline and oil (1 part of oil is added to 40 parts of 92 gasoline and mixed very well). And be sure to buy chainsaw oil in accordance with the manufacturer’s recommendations, so you avoid problems with engine repairs due to poor lubrication and scuffing (this saw manufacturer recommends oils that meet the classification API TV or API TC, JASO FB or JASO FC). The 45 cc engine has a capacity of 1.8 kW (2.3 horsepower).
The chain saw has a short bar and is only 40 cm (16 inches) long. Such a chainsaw is very convenient for cutting brush, small wood and making firewood (from small diameter trunks). Chain adjustment on the bar in this chainsaw is quite simple: the chain is put on the drive sprocket (just do not forget the correct direction), and with the help of the tensioning mechanism the chain is tensioned (the chain must fit tightly on the bar and at the same time) free to slide. By the way, the tire should be periodically turned over (so that the wear is even).
Also starts up the chain saw rather easily. First of all one switches on the starter button, which is located in the area of the chainsaw handle, then the starter rope with the handle at the end (or the handle of the manual starter) is pulled to the length of the free running from the winding mechanism. Then there is a sharp jerk and the chainsaw starts banging! But don’t forget to pump up the petrol with the fuel pump button and adjust the choke. After a short warm-up engine can perform the work on the sawing. Adjust the chain speed on the bar with the “throttle” key on the back handle of the chain saw. By the way, the rear handle is very handy. no hand fatigue. The front handle is rubberized, so it doesn’t slip.
The Huter BS-45M chainsaw starts pretty well (even in frosty weather). If the chainsaw doesn’t start, it often happens because of the absence of spark on the spark plug (it is thrown with petrol). The spark plug is changed fairly quickly (this saw has Champion RCJ6Y spark plugs). In the same way as for any other petrol engine the chain saw engine needs service (it should be done according to the service schedule in the Instruction Manual).
The fuel filler neck of this model of chainsaw is located near the handle, it is covered by a plastic cover with a gasket. The neck is quite narrow, which means that to fill the fuel, stock up on a funnel. The fuel mixture you need to fill a little (tank capacity is only 550 ml). Don’t forget to drain the fuel mix after using the chain saw. The lubrication of the gearbox is done through the oil receiver (closed by the screw cap with a gasket) located near the guide bar. By the way, the lubrication is automatic (your task. Keep an eye on its level and add fuel in time.).
Chainsaw HUTOR BS-45!No traction.
The chainsaw has a protective cover of the air filter at the top, it can be easily unscrewed. The air filter may be easily cleaned (it is necessary to clean it permanently, because when you saw only chips fly). On the handle, the chain saw has several buttons: a trigger for adjusting the chain speed and a lock against unintentional starting. There’s also a chain brake lever on top of the chain saw.
In general, you have to know how to work with a chainsaw, because it is a very dangerous tool (it’s hard to hold it with two hands). Five fingers on the hand are clearly better than two. So read the manual carefully and ask experienced “lumberjacks” for help. So that you don’t forget the little things, there are small and concise instructions on the chain saw body.
From my experience with this chainsaw, I can tell you the following. Huter BS-45M chainsaw works well, but there are a few bugs: First, the chain, which is equipped with a chainsaw, you can throw away immediately; second, the plastic housing of the chainsaw (especially in the upper part) is very flimsy and brittle (in the cold you must work very carefully, so as not to break the accidental cover of the air filter; thirdly, chainsaw is sensitive to proportions of fuel mixture and its “pumping” (the engine will be naughty and will not start until you change the polluted spark plug); fourthly, the rope of the manual starter is weak; fifthly, oil can leak from under the screwed on covers of gas tank and oil receiver.
As I said, chainsaw Huter BS-45M is used for construction work, for pruning trees and shrubs, for cutting firewood. But chainsaws have a much wider range of applications than just chopping firewood and sawing small trees. With it, for example, you can scare a little (though remove the chain just in case).
The chain saw doesn’t start: causes and troubleshooting
Extremely accurate and not the most simple design of chainsaws, includes about a hundred components, the interaction of which ensures the effective performance of the tool. Wear, damage, or misalignment damage the mechanism, reducing its capabilities or completely disabling it. Among the most common malfunctions can be allocated a complete refusal of the engine to start. Here are the main reasons why a chain saw fails to start. The process of troubleshooting each fault has a detailed description with photos and videos.
Among failures, responsible for starting the mechanism, we can distinguish simple. when repair does not require special knowledge, and complex. when repair requires repair of engine or carburetor. Elimination of simple defects, in 90% of cases, is limited to cleaning or replacement of easily accessible components. complex failures may require almost complete disassembly of key system components, followed by replacement of damaged elements.
If the tool was operated carefully and according to the manufacturer’s requirements, the probability of a slight malfunction is high. Banal lack of fuel in the tank, violation of the starting sequence, lack of spark, clogging of filters and breather and similar problems, due to which the chainsaw usually does not start. Causes and nuances of the solution are summarized in the following list (further in more detail):
Lack of fuel may seem to be the most obvious reason for failure to start, but there are occasional service calls about it. It seems that there is enough gasoline in the tank, but the filter on the fuel hose doesn’t allow the carburetor to suck it in from the bottom. In such a case it is necessary to fill up elementary at least on half of it.
Correct sequence of actions before starting, greatly facilitates the starting procedure. Violation of the algorithm can not only complicate the start, but even make it impossible. The process should be as follows: 3-4 presses on the primer to supply fuel to the carburetor, closing the choke (lever on itself) and several steady rotations of the starter until the chainsaw starts for a split second, then stalls. Then you only have to open the choke, start it and you are ready to use it.
Lack of spark may be due to a faulty spark plug or ignition system. The spark plug may be dirty or deformed, which can be solved by cleaning, easy repair or replacement. The problem with the ignition system can be associated with an incorrect gap between the flywheel and coil, the gap between which should not exceed 0.35 mm. If the adjustment does not help, the system should be replaced.
Clogged filters (air and fuel filters) limit the flow of vital substances to the engine, making it impossible to start or reducing its efficiency. This will not be a problem on a new saw, and these elements should be checked after prolonged use. The fuel filter is mounted on the hose in the tank and the air filter on the carburetor.
The fuel tank breather is designed to stabilize pressure by injecting the necessary amount of air instead of the decreasing volume of gasoline. If the breather valve is clogged, the gas tank is sealed and pumping gasoline creates a vacuum in the tank. When the pressure threshold is reached, the carburetor will not be able to suck in fuel and deliver it to the cylinder. If when unscrewing the tank cap, air is sharply sucked into it, then the breather plug is clogged and requires cleaning.
The soot on the exhaust valve or muffler can interfere with the removal of exhaust gases from the engine. In that case, the chainsaw may malfunction right after starting, or it may not start at all. The problem occurs after prolonged use of the tool and can be solved by cleaning the channels.
serious failures are related to the carburetor and engine. Repair of these elements requires a certain experience, and a person with minimal knowledge of the work of the internal combustion engine for it is better not to take. Independently it is possible to adjust the carburetor, to check compression and replace the diaphragm (about it in detail below), but full replacement of the CPG is better to entrust to the expert.
In detail for each malfunction
Having considered the main problematic places and determined the area of repair work, you can proceed to a more detailed analysis of each cause separately. The following instructions are as the difficulty of adjustment increases. The most trivial, simple options will require a minimum of time and a regular set of tools for the maintenance of the chainsaw. To fix more serious damage you may need a set of socket wrenches and a compressometer (to check the engine).
Fuel
The most trivial and at the same time quite common problem with starting can occur because of the usual negligence. If the fuel level in the fuel tank is low the fuel hose and filter are not able to completely fill and circulate. This situation happens especially often when the chain saw does not start when hot, after a short pause. Although even after cooling down, without the right amount of fuel, the engine will no longer start.
To exclude this scenario from the list of possible starting problems, it is sufficient to monitor the fuel level in the tank, and regularly fill it with a high-quality mixture.
Optimal fuel specifications may vary, depending on the model of the chainsaw. The ratio of oil to gasoline can be from 1 to 25 to 1 to 50. The allowable octane number of gasoline can be a value of 80, 92 or 95 (usually 92). Many manufacturers recommend the use of a particular brand of oil whose composition is ideally suited to interact with the alloy from which the engine and carburetor are made.
Accurate adherence to the manufacturer’s recommendations is relevant when operating professional tools that regularly face increased workloads. When working with most domestic chainsaws, any two-stroke engine oil and AI-92 gasoline will do, which should be mixed according to the instructions in the tool’s datasheet.
Ignition
Perhaps the most popular problem with starting a chainsaw, is the lack of spark igniting the fuel. Such malfunction may be due to contamination or damage of the spark plug, high-voltage wire, contacts or alternator (flywheel and magneto). The most accessible and easy to check element is the spark plug, so check it first.
First of all it is necessary to get an access to the potential source of failure. On most chainsaws, the spark plug is located on top of the carburetor, but there are models where this element is at the bottom.
Using a special hex head (comes with the saw), unscrew the spark plug from the socket, and then conduct a visual inspection. The contacts should be clean and dry. If there is soot on the spark plug it means that the fuel to air ratio in the combustion unit is higher than normal and the carburetor needs adjustment. The presence of fuel mixture on the contacts indicates an excessive fuel supply, which can also be adjusted with a special screw on the carburettor. The first thing to do in this situation is to check the function of the spark plug.
Before starting the test it is necessary to remove the carbon deposits (if any) and dry the element completely. You should also check the gap between the contacts of the plug, which should not exceed 1 mm (ideally 0.7 mm). Then it remains to connect the spark plug to the high-voltage wire (candlestick), coming from the generator and pull the starter. The presence of a spark will indicate the serviceability of the ignition system and the need for further adjustment of the carburetor.
If the chainsaw does not start, the spark plug is dry, but there is no spark, the fault should be looked for in the ignition system itself. Usually, the lack of impulse in the rotation of the shaft, due to the displacement of the magneto in relation to the flywheel. On average, the optimum distance between the aforementioned elements, should be 0.25mm (4-5 notebook sheets). To gain access to the magneto, it is necessary to unscrew the side cover of the housing. To adjust the magneto, simply loosen the fixing bolts, put a sheet of paper between the magneto and the flywheel, press it down and tighten.
If calibration of the gap does not result in a check (visually / by dialling), the high-voltage wire, leading to the candlestick. If there is sure contact, the area of failure is narrowed down to a single part. the magneto. It should be replaced or serviced for repair.
Exhaust system
As the engine runs, the fuel burned in the cylinder produces exhaust gases, some of which are deposited inside the resonator, spark arrestor and muffler. A layer of soot gradually builds up, filling the interior and reducing the flow capacity of the exhaust duct. Insufficient or stagnant exhaust gases in the cylinder block the intake of fresh air, and the engine will lose power or stop running.
The work of the filters
The next most popular cause of saw malfunction is clogged filters. Cutter consists of two filters. an air filter and a fuel filter. These parts are responsible for different processes, but equally aid in cleaning and trapping foreign particles.
Fuel filter
To check the operation of the fuel filter, proceed as follows:
- The fuel line is disconnected from the carburetor.
- pumping up the petrol.
- The fuel supply is monitored.
- If the fuel does not flow at a high pressure (or not at all), the fuel filter is blocked.
- All petrol is removed from the tank.
- The filter element is unhooked with a hook.
- The replacement cartridge is cleaned. If you want you can skip this step and replace clogged filter with a new one.
- The saw is put back together.
The filter tends to get clogged over time. That’s why experienced chainsaw owners clean the filters as a preventive measure. The frequency of this procedure depends on the conditions in which the handyman works. If there is a lot of dust in the workshop, the cartridges get dirty faster.
Air filter
As a result of a clogged air filter the saw’s engine becomes unstable. In practice, this factor leads to intermittent shutdowns or difficulty starting up. The absorbent material accumulates dust and dirt, a large volume of which leads to complete impenetrability of the diaphragm. When the air stops flowing into the system, the gasoline becomes too rich.
The air filter is cleaned in the same way:
- The chainsaw is opened, after which the air filter is removed.
- Removing the filter prevents dust particles from entering the carburetor.
- Disconnect the cartridge and clean off accumulated dirt.
- The surface of the filter is washed with a detergent.
- Clean and dry the element thoroughly.
- The saw is put back together.
A chain saw does not start well in the cold
Not following the correct procedure when starting in the cold
If a new chain saw does not start in cold conditions, it may be because the starting sequence is not correct. As a rule, every manufacturer specifies in the manual to a chainsaw, the order of actions when starting a chainsaw in the cold. It is basically the same for all two-stroke internal combustion engines that are fitted to chain saws and is as follows.
- Closing the choke (necessary to enrich the fuel when starting).
- Sucking up the fuel by using a special primer (some chainsaws do not have a primer, and therefore this point is absent).
- Switch on the ignition (if you forget to do this, you could erroneously assume that the tool is faulty).
- Spend some movements of the starter, before the first “flash” of the engine (it is important not to miss this moment, otherwise it is possible “to flood” the engine).
- Turn the choke shutter to the open position.
- Start the chainsaw engine.
Problems with fuel
As with a hot start, problems with the fuel system can affect a cold start or make it impossible to start cold as well. Adjusting the carburetor, a dirty fuel filter and line are all causes of difficulty starting.
Carry out diagnostics of fuel system, it is the first thing to do in case of difficult start in cold.
You should also pay attention to fuel quality.к. the mix of oil and petrol with too little water could make starting difficult or impossible.
The mixture should be used fresh enough, t.к. the quality of the fuel is worth attention, because storing gasoline diluted with oil for more than a month loses its properties and makes starting a cold or hot engine more difficult. Gasoline can burn poorly for this reason.
Troubles in the engine
Scoring of CPG, sticking of rings, wear of CPG, air drainage through gaskets and seals, compression decrease, all these problems can make chain saw start impossible or make it very difficult. For example, if there is not much wear on the cylinder head, the compression in the engine will be reduced. In this case, a cold start will be much more difficult or the saw may stop starting. the tool will start well.
To accurately diagnose engine problems related to problems in starting the engine is quite difficult, and it is better to consult an expert in this area.
A chain saw does not start well in the cold
Improper starting sequence during cold start
If a new chainsaw does not start in the cold, the cause may be in the wrong sequence of starting the engine. As a rule, every manufacturer specifies in the instructions to the chainsaw the procedure to be followed when starting the chainsaw in the cold. It is basically the same for all two-stroke internal combustion engines that are installed on chainsaws and represents the following procedure.
- Closing the air damper (necessary for fuel enrichment at start up).
- Fuel suction with a special primer (some chainsaw models do not have a primer, and therefore this item is absent for them).
- Switching on the ignition (if this is forgotten, it is possible to erroneously consider the instrument as faulty).
- Spend some movements of the starter, before the first “flash” of the engine (it is important not to miss this moment, otherwise you can “flood” the engine).
- Set the choke in the open position.
- Start the chainsaw engine.
Problems with the fuel
As in the case of hard start in hot weather, the problems in the fuel system can affect the start or not be able to make it and in cold weather. Adjusting the carburetor, dirty fuel filter and line, all of these are reasons that cause difficulty starting.
Carry out a diagnosis of the fuel system, this is the first thing to do when you have trouble starting in the cold.
It is also worth paying attention to the quality of fuel, t.к. using a mixture of gasoline and oil, which has a small amount of water in it, can make starting very difficult or impossible.
The fuel mix should be fresh enough to start the tool in the right way.к. If you store oiled gasoline for more than a month, it loses its properties and makes it difficult to start the engine, whether it is cold or hot. Gasoline can burn poorly for this reason.
Troubles in the engine
Scoring of the cylinder-head, stuck rings, wear of the cylinder-head, air drainage through gaskets and seals, compression decrease, all these problems can make chain-saw starting impossible or make it very difficult. For example, if there is not much wear on the cylinder head, the compression in the engine is reduced. In this case, a cold start will be very difficult or the saw may stop. tool will start well.
It is very difficult to accurately diagnose engine problems related to starting problems and it is better to turn to a specialist in this area.
Restrictions in self-tuning of warranty tool
Even with an easy-start system, it is relatively difficult to start new machines that have not yet been running in. Disassembling the manual starter before the end of the warranty service and repair period is not recommended.
- For service departments, such improvement may become a reason to refuse free replacement of more valuable equipment, which has failed.
- In case of independent elimination of minor defects, such as “gasoline does not flow” or “the air intake is loose” penalties are not applied.
- Practice shows that problems with starting the chainsaws of the budget range appear after 2-3 years of operation. In such a situation, the owner has to put up with the additional cost of repairs or rely on their own locksmith skills.
Thanks to the higher quality of materials and factory assembly, the problems with starting the branded models are much less. Nevertheless, the recommendations given in this article may be useful for owners of medium- and high-end chainsaws.
The information you get will tell you how to solve a problem when your Chinese chainsaw won’t start. Virtually all Chinese chainsaw imports are based on European models, so there are few design and operational differences.
The reasons why the chainsaw stalls under load
In this article, the construction site will consider the main reasons why the chainsaw can not start or shut down under load.
The most common of all, are the following causes:
Why the power of a chainsaw decreases
The same goes for the air filter, it should be cleaned right away if you have this kind of problem. Now about the spark plug, if it is very dirty, it also needs to be cleaned and adjusted if necessary. Exactly the wrong gap between the electrodes of the spark plug on the chainsaw may cause it to choke and work very unstably in general.
The saw stops after you let go of the gas
Here you need to adjust the carburetor and check whether there is no strong air drain.
We have already discerned the most common chain saw breaks. We can only hope that your chain saw will operate without downtime. But even rugged models like STIHL and Partner can sometimes malfunction.
Don’t rush to the service center, first of all use my tips. That way you can avoid much money.
If you found this article interesting. share it with your friends on social networks. And I bid you farewell. Good luck and see you again on the blog!
Why the chainsaw stalls when you press the gas pedal. to summarize
Doing an upgrade on the reasons why the saw stops after you press the gas, it is necessary to summarize all the possible causes and their elimination. The causes can be divided into two parts. simple and complex. You start with simple causes and end with more complex ones.
Definitely start with the tank, not the carburetor, but the gas tank. Be sure to use the correct carburetor mixture. Next you need to check the serviceability of the muffler and the presence of the color of soot on the spark plug. After that you will already have an idea in which part of the tool you need to look for a breakdown. The problem may be. That it is necessary to simply crank up the maximum revolutions, for which the carburetor tuning is performed. If that doesn’t solve the problem then check the air filter and clean it.
Pay special attention to the carburetor, after cleaning and possibly repairing it, the chainsaw should work like new. If the problem is still there, then don’t be lazy to check the compression value. The engine may be severely worn out and need to be replaced.
At this point the upgrade to restore the tool performance is complete, and it is worth noting one more such moment as the use of fuel that has been stored for a long time. Many people dilute petrol with oil and keep the mixture for months, sometimes up to half a year. There is no way to do this, because the mixture has the properties of aging, and therefore after cooking it, you need to use for 1-2 weeks. If you do not observe this recommendation, you will need to change not only the fuel filters often, but also clean the carburetor, but the worst thing. it contributes to accelerated wear of the cylinder rod.
What to do
If a malfunction is detected, you can try to fix it yourself. If you can not fix the device with your own hands, contact a specialist. Master will inspect the appliance, make professional repairs. This will avoid the risk of damaging the tool while trying to repair it with your own hands. Methods of eliminating dysfunctions depend on what part was defective, which caused the work of the saw to be disturbed.
If the chainsaw starts and immediately shuts down, it is often caused by a lack of fuel. It is necessary to control quantity of fuel in the gas tank, timely fill up the device.
It is important to operate the tool properly, following the instructions. Improper use of the chain saw can worsen the quality of the cut, cause breakdown or damage the appliance.
New machinery can be difficult to start, even with an easy start system. After some time such a problem eliminates itself. If a person has doubts about the serviceability of the appliance, it is recommended to consult a craftsman.