Chainsaw Stihl How To Start On A Cold

19th December 2020

How to properly start a Stihl chainsaw: instructions

The tool manufacturer has taken all measures and developed a manual that makes the mechanism easy to start. The user will protect himself from injury if he fulfills the proposed frequency of actions:

The ignition is turned on and the engine handle is in the down position. The intake of atmosphere from the air filter is blocked by the carburetor flap. In order to properly start the chainsaw, the throttle membrane must be open to enrich the combustible mixture.
The lever is set to the start throttle position. The starter jerks several times before the first spark appears. If the flash passes, the instrument is ready to run. The mechanism runs at high speeds due to the closed throttle diaphragm. To transfer it to the idle speed, the gas trigger is pressed and the rhinestone is released. The number of revolutions quickly returns to normal.
On the Stihl MC unit of the standard configuration, additional devices are not provided to start the chainsaw in a lightweight version.

Stihl chainsaw does not start well when cold

Amateur and professional chainsaws are complex devices. The service life of their two-stroke engines, components and assemblies has its own limitations. For this reason, quite reliable and expensive tools, along with cheap Chinese units, periodically fail and refuse to start. The situation when the chainsaw does not start or stalls is not very pleasant and sometimes confuses the user. How to identify and correct a malfunction by returning the instrument to work.

Checking the spark on the spark plug and troubleshooting.

The first step in looking for reasons why your gasoline saw won’t start is to check the spark on the spark plug. There are many factors that affect the performance of this element. However, the main ones at the initial stage of instrument troubleshooting are:

Incorrect carburetor adjustment;
The presence of more than it should be, the amount of oil in gasoline;
Clogged air filter.

All of them contribute to the formation of carbon deposits on the spark plug electrodes. In 50 cases out of 100, the saws do not start on a cold one due to the absence of a spark due to carbon deposits on the electrodes and their corrosion. As a result, the gap either decreases or increases.

Checking the spark plug with an idle chainsaw

Checking for a spark is fairly easy. This will require:

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

If a good spark is observed between the electrodes at the time the chainsaw engine starts, then everything is in order with the ignition unit. If it is not there, then it is worth cleaning the element itself and checking the gap of the electrodes. If necessary, using a special probe, adjust the distance between the contacts.

There may be no spark on the spark plug for other reasons. Of the main faults affecting the poor start of the chainsaw and the unstable operation of the internal combustion engine at idle, from which the tool can stall, include the following:

Overflow of the spark plug channel with fuel;
Lack of contact between the high-voltage cradle and the tip of the candle;
Failure of the ignition unit.

How to start a cold chainsaw if the candle channel is constantly flooding with gasoline? To eliminate the problem while starting the tool, use the following algorithm:

Unscrew the candle with a special key;
Wipe it with a clean and dry cloth;
Dry for 20. 30 minutes;
Remove carbon deposits with a file and adjust the gap between the electrodes;
Drain the remaining fuel from the spark plug channel and dry it;
Collect everything and try to start the mechanism.

If there is no spark and poor contact of the high-voltage cradle with the spark plug tip, check the connection. The check can be done using a conventional tester. If a defect is found and it is eliminated, the chainsaw should start without any problems.

If the check showed that the contact is reliable, and the saw does not start further, look for the cause in the ignition unit. As a rule, a faulty unit cannot be repaired or restored. A complete replacement is required here.

When you press the gas

Sawing units are idling, but the saw stalls when the gas is pressed, as the load increases. Before use, the tool is warmed up by running the engine at idle for a minute. If this is neglected, the motor will stop after pressing the pedal. Other reasons could be:

Clogged or unregulated combustible fuel mixing assembly;
A clogged air filter does not provide the required air flow when the load increases;
A dirty gasoline filter does not allow the required amount of mixture to pass through;
Cylinder and piston wall rubbing.

Low octane fuel becomes the reason for brakes, because this circumstance does not allow the engine to reach the required power when the load increases.

Checking the breather and cleaning it.

The breather is another element, from the improper operation of which the chainsaw may not start or stall during the sawing process. This element is located on the fuel tank cap in the area of the air hole. This is a kind of valve that does not allow gasoline to flow out and equalizes the air pressure required for the free flow of fuel into the carburetor.

If the breather is dirty, the working chainsaw stalls, and when started it refuses to start. The thing is that air stops flowing through the hole. As a result, a negative pressure (vacuum) is created inside the fuel tank, preventing the flow of gasoline to the carburetor.

Defining the problem is pretty simple. Disconnect the fuel hose from the carburetor and see what happens to the gasoline. If it flows out freely in a good trickle, then everything is in order with the breather. If it is absent or it flows weakly and intermittently, then the reason is identified. the breather is clogged with dirt. You can solve the problem by cleaning the air hole with a regular needle or a powerful jet of compressed air.

Fills the spark plug

In this case, the spark is not able to ignite the fuel, which enters the furnace in large quantities to burn the combustible mixture. If it floods a candle, then the carburetor is faulty or a cold engine does not start correctly. The engine is purged, the procedure is performed with the ignition off and away from an open flame. To ensure that the fuel ignites at the time of start-up, the mechanism is cleaned:

Unscrew the candle, wipe it dry, dry it for half an hour;
A large layer of carbon is removed with a file;
Adjust the gap between the contacts;
The tool is turned upside down and the gasoline is drained;
In this position, pull the starter several times (to remove fuel residues);
Assemble in reverse order.

Identification and elimination of obvious faults of the chainsaw.

To determine the reason why the chainsaw does not start or stalls when starting, it is necessary to troubleshoot the tool. The essence of the procedure is to consistently inspect the condition and operation of the main working elements of the saw motor. At this stage, we check:

Spark plug present;
Fuel supply;
Filter status;
The operation of the breather of the stalling unit built into the fuel cap;
Discharge duct function.

Not gaining momentum

Many mechanisms of the mechanism are involved in the start-up, therefore, the loss of speed of the Stihl chainsaw after idling can be a consequence of various factors. Confident idling and interruptions in the motor under load can occur for the following reasons:

Development of the engine resource;
Wear, deformation and corrosion of the piston group;
Faulty ignition coil or spark plug;
Unbalanced carburetor screws.

If the tool does not develop speed, then the conductivity of the hole in the fuel tank cap is broken. The emergence of a vacuum does not provide the required amount of fuel, therefore the engine does not gain the required power. Turnovers decrease when carbon monoxide deposits accumulate in the muffler, it is difficult to remove gases from combustion.

No spark

Spark plug test is performed. Various factors affect the functioning of an element. When testing the mechanism, the reasons are revealed:

Insufficient carburetor adjustment;
Large oil in gasoline;
Clogged fuel and air filters.

Due to work in such conditions, carbon deposits accumulate on the plug contacts. Subsequent corrosion of the conductors causes no spark in half of the fault cases. This is because the gap between the modular contacts changes. To test the spark, do the following:

The tip of the high voltage cable is removed;
Unscrew the candle;
The tip is put in place;
The wide end of the candle is leaned against the cylinder;
Start the starter.

If a bright spark resembling lightning appears between the electrodes during start-up, then the ignition unit is working properly. In the absence of a flash, clean the entire element and expose a gap between the conductors. Sometimes there is no clearance between the flywheel and the ignition coil. When rubbing the flywheel, scratches are visible on its exterior.

We start Stihl MS 180 C

The device of this model, in comparison with the previous one, has some differences in the trigger mechanism, but it does not carry any changes in the triggering algorithm. The fact is that the ErgoStart system is installed in the Stihl 180 C, which, due to an additional spring installed in the chainsaw starter, reduces the engine resistance when starting.

We start Stihl 180

In order to start a Stihl 180 chainsaw on a cold one, you must follow the algorithm specified by the manufacturer in the instructions for the Stihl 180 chainsaw, namely:

Turn on the ignition and set the engine control lever to the lowest position (in this position, the air damper of the Stihl 180 carburetor blocks the air from the air filter, and the throttle valve is fully open, thus the fuel mixture is enriched);
Pull the starter handle several times until the first flash passes (the flash signals that the fuel mixture has entered the cylinder and the saw is ready to start);
Set the control lever one position up from fully lowered (in this position, the air damper opens, and the throttle valve remains in the same position as before);
Pull the starter and start. The saw will start and run at higher rpm due to the fact that the throttle valve is open as much as possible. To set the damper to idle, you must press the gas trigger and immediately release, the tool immediately normalizes the speed.

The Stihl MS 180 chainsaw, as standard, does not have any additional devices that can facilitate starting.

Below you can see how to start Stihl 180. Reflects in detail all the main points, and the author’s comments allow you to understand the whole process to the smallest detail.

What happens at the moment of priming fuel with a primer, and how it helps to start the saw more efficiently?

At the moment of starting the saw without a primer, several movements of the starter are carried out only so that the gas pump, under the action of an impulse from the saw crankcase, pumped fuel into the carburetor.

A pump installed in the fuel line allows you to manually pump gasoline into the carburetor without unnecessary movements with the starter. The effect of this action is obvious, the saw will start much faster.

There is no need to use a primer on a hot chainsaw, because the fuel in the carburetor is enough to start.

How to start the saw after long periods of inactivity

I can’t start the chainsaw after a long period of inactivity. Such comments can be found on the forums dedicated to the repair and operation of saws. Let’s figure out how to start a chainsaw after a long downtime.

The fact is that a successful start after downtime, you need to take care in advance and properly prepare the saw for storage. According to the manufacturer’s instructions, before storing, it is necessary to drain the fuel from the tank, then start the engine and burn off the fuel in the fuel system.

Preparation is necessary so that the carburetor membranes do not stick together during storage. Performing this simple operation will allow you to successfully start the saw after long-term storage.

It is much easier to start the chainsaw six months after idle time, if just before starting, through the spark plug hole, add 1. 2 ml of the fuel mixture to the cylinder. This can be done with a syringe.

How to start a Stihl chainsaw

All Stihl chainsaws are equipped with two-stroke engines, the cold start of which has a similar algorithm. But there are models on which additional equipment is installed that allows you to start the saw without excessive efforts. For this reason, the algorithm for starting them may differ slightly.

Let’s take a look at how to start a regular saw and how the process differs from starting a modified model.

How to start a chainsaws with a decompression valve

Before starting a Stihl chainsaw on which a decompression valve is installed, you must turn it on. It should be noted that there is no decompression valve on the Stihl 250 saw.

After the first flash has passed, the valve will return to normal operation, respectively, after the engine control lever is set to the open position and starting continues, the decompression valve must be pressed again.

The valve operation is shown schematically in the figure below.

In fact, the valve does not make starting faster, it just simplifies the process and makes it more comfortable, because For during launch, a person will have to apply significantly less effort.

We start Stihl MS 211 C-BE

The fuel supply system in the Stihl MS 211 C-BE chainsaw is additionally equipped with a manual fuel pump, which makes it easier to start the chainsaw on a cold.

The instruction for starting this model of the Stihl chainsaw contains one additional point, which is that before starting the chainsaw on a cold one, it is necessary to pump fuel into the carburetor using a pump. Further, the instruction does not differ from starting Stihl 180 and follows the same algorithm.

Starting a Stihl chainsaw almost always follows the same algorithm, except for those cases when a decompression valve and a fuel primer are additionally installed on the chainsaw. These gadgets are designed to facilitate the startup process and do an excellent job of their functions.

We start Stihl MS 211 C-BE

The fuel supply system in the Stihl MS 211 C-BE chainsaw is additionally equipped with a manual fuel pump, which makes it easier to start the chainsaw on a cold.

The instruction for starting this model of the Stihl chainsaw contains one additional point, which is that before starting the chainsaw on a cold one, it is necessary to pump fuel into the carburetor using a pump. Further, the instruction does not differ from starting Stihl 180 and follows the same algorithm.

We start Stihl 180

In order to start a Stihl 180 chainsaw on a cold one, you must follow the algorithm specified by the manufacturer in the instructions for the Stihl 180 chainsaw, namely:

Turn on the ignition and set the engine control lever to the lowest position (in this position, the air damper of the Stihl 180 carburetor blocks the air from the air filter, and the throttle valve is fully open, thus the fuel mixture is enriched);
Pull the starter handle several times until the first flash passes (the flash signals that the fuel mixture has entered the cylinder and the saw is ready to start);
Set the control lever one position up from fully lowered (in this position, the air damper opens, and the throttle valve remains in the same position as before);
Pull the starter and start. The saw will start and run at higher rpm due to the fact that the throttle valve is open as much as possible. To set the damper to idle mode, you must press the gas trigger and immediately release, the tool immediately normalizes the speed.

The Stihl MS 180 chainsaw, as standard, does not have any additional devices that can facilitate starting.

Below you can see how to start Stihl 180. Reflects in detail all the main points, and the author’s comments allow you to understand the whole process to the smallest detail.

How to start a Stihl 180 cold

Trimmer for giving

How to start a chainsaws with a decompression valve

Before starting a Stihl chainsaw on which a decompression valve is installed, you must turn it on. It should be noted that there is no decompression valve on the Stihl 250 saw.

The valve operation is schematically shown in the figure below.

In fact, the valve does not make starting faster, it just simplifies the process and makes it more comfortable, because For during launch, a person will have to apply significantly less effort.

Stihl 180 saw setting algorithm

If you are faced with the question of how to start a Stihl chainsaw, then this process can be seen on the example of model 180. To be able to perform work on a cool one, you need to turn on the ignition and set the engine control lever to the lower position. With all this, the carburetor flap will block the air from the filter, and the throttle will be open, so the fuel mixture will be enriched.

The starter handle must be pulled a couple of times until the 1st flash occurs. This will indicate that the mixture has entered the cylinder and the equipment is ready for institution. Before starting the Stihl chainsaw, you need to set the control lever one position up. With all this, the air damper will open, while the throttle remains about the same position.

The starter must be pulled and started. The tool runs at high revs, the throttle valve will be open. To set the latter to idle, use the gas trigger and release it. With all this, the tool should start working normally. On the described model of the chainsaw there are no additional devices that would make it easier to start.

Can. Everything fits perfectly. Just don’t run over to, 325″. It’s hard for the motor. But there are a couple of aspects to be understood. How to start a husqvarna chainsaw. Nevsky method. On such a set (with a removable), the sprocket is a little larger in diameter and one tooth more. The speed of the chain will increase in a ratio of 6: 7, respectively, the load on the engine will also increase. But practice has shown that this is not critical with normally sharpened chains. And the second. A brand new chain of 50 links on such an asterisk is difficult to put on. (Generally, 51 links are recommended, but they are rare). The first time you have to suffer for it to stand on the sprocket and the tire. And later, when it stretches a little, everything will be fine to dress.

I bought a Stihl 180 chainsaw. I poured oil, benzyl. Started up and gave it to work without load at idle speed. Burned a tank of gasoline, at times pressed the gas a little. For some reason, the oil for lubricating the chain did not arrive, the oil hole remained dry. Or it will begin to flow when the revolutions are higher and the chain spins longer?

Starting a Stihl chainsaw almost always follows the same algorithm, except for those cases when a decompression valve and a fuel primer are additionally installed on the chainsaw. These gadgets are designed to facilitate the startup process and do an excellent job of their functions.

We start Stihl MS 180 C

How to start the Stihl 180 correctly

How to start a Stihl, start a Stihl chainsaw, how to correctly start a Stihl 180 chainsaw 1st start

The main reasons why the Stihl chainsaw does not start and how to fix them

German saws STIHL (Stihl) have long established themselves as a high-quality and reliable cutting tool. The company offers a wide range of models for various needs:

Low-power chainsaws for working in the garden or in the country for cutting shrubs and felling trees with a small diameter trunk, harvesting firewood: MS 170 (1.3 kW), MS 211 (1.7 kW), MS 230 (2 kW) and others.
Chainsaws of medium power, ideal for farmers, gardeners and builders: MS 271 (2.6 kW) and MS 310 (3.2 kW).
Super powerful saws with a gasoline engine, characterized by high performance and suitable for all industrial and household work related to the processing of wood of various hardness: MS 361 (3.4 kW), MS 361 (5.2 kW) and others.
battery-powered saws and saws that do not require refueling, but are also great for small summer cottages: e.g. MSE 250 C-Q or MSA 220 C-B (with AP 300 S and AL 500).

The lightweight and compact model of the tool is used for domestic purposes, but, despite the optimized performance, sometimes the Stihl chainsaw does not start. Problems are manifested in the fact that the engine turns on and stalls, is unstable, cannot develop the intended power, or suddenly picks up high revs.

No spark

Spark plug test is performed. Various factors affect the functioning of an element. When testing the mechanism, the reasons are revealed:

Insufficient carburetor adjustment;
Large oil in gasoline;
Clogged fuel and air filters.

The tip of the high voltage cable is removed;
Unscrew the candle;
The tip is put in place;
The wide end of the candle is leaned against the cylinder;
Start the starter.

If, at start-up, a bright spark resembling lightning appears between the electrodes, then the ignition unit is operational. In the absence of a flash, clean the entire element and expose a gap between the conductors. Sometimes there is no clearance between the flywheel and the ignition coil. When rubbing the flywheel, scratches are visible on its exterior.

Idle speed adjustment

Before adjustment, the tool is maintained. In order for the idle speed adjustment to be effective, prevention is done:

Carburetor cleaning;
Flushing the engine;
Air filter cleaning;
Warming up the motor.

To adjust the operation of the mechanism at idle speed, an appropriate adjusting screw is used. Its rotation depends on the required setting:

With standard adjustment, the screw is turned against the clock hand to the point where it will turn tightly. After that, make 2 circles in the direction of the arrow.
If the saw is running at low rpm, turn the screw clockwise until the chain starts moving. Then make half a circle in the opposite direction.
At high frequency, the regulator is turned against the clock hand until the circuit stops. After that, the rotation is continued for another half turn in the same direction.

It will not work to adjust the idle operation if there is air suction into the engine through a gasket, an acceleration pump, oil seals, or for another reason.

Idle

Violation of the functionality of the fuel unit system leads to air leakage. In this case, the unit stalls at idle and does not keep their number. Additional suction reduces the air impulse to the fuel pump and passes through the sump membrane or crankshaft oil seals. Diagnostics is done with a vacuum gauge.

The termination of engine cold operation occurs for other reasons:

The candle channel contains an excess amount of the combustible mixture;
The gap between the spark plug tip and the high-voltage cradle is not adjusted;
Power supply failure.

Check the oil seals by pouring gasoline into the crankcase, the leak is visible visually. This means that the engine does not idle, and at a high frequency, leaking oil seals will lead to seizure of the bearings. In case of leakage of elements, they are replaced with new ones and they are sealed.

Stihl chainsaw stalls: reasons

If the tool turns off immediately after starting, it means that a breakdown of some device or part has occurred. To determine the cause, the mechanism is tested independently or in service workshops. Sometimes the reason that the mechanism does not start well is due to improper saw maintenance:

Insufficient amount of gasoline;
Poorly prepared fuel mixture;
Poor lubricant quality;
Silencer clogged with combustion products;
Unadjusted carburetor;
Obstruction of the air filter;
Malfunctioning piston or cylinder.

How to properly start a Stihl chainsaw: instructions

The tool manufacturer has taken all measures and developed a manual that makes the mechanism easy to start. The user will protect himself from injury if he fulfills the proposed frequency of actions:

The ignition is turned on and the engine handle is in the down position. The intake of atmosphere from the air filter is blocked by the carburetor flap. In order to properly start the chainsaw, the throttle membrane must be open to enrich the combustible mixture.
The lever is set to the start throttle position. The starter jerks several times before the first spark appears. If the flash passes, the instrument is ready to run. The mechanism runs at high speeds due to the closed throttle diaphragm. To transfer it to the idle speed, the gas trigger is pressed and the rhinestone is released. The number of revolutions quickly returns to normal.
On the Stihl MC unit of the standard configuration, additional devices are not provided to start the chainsaw in a lightweight version.

Doesn’t slow down

The tool quickly reaches its maximum number of revolutions and the power does not decrease. This situation is explained by the fact that:

The throttle valve does not work due to a weakening of the spring or traction element;
The on toggle switch periodically fails;
No corkscrew on the throttle shaft;
Clogged carburetor;
The fuel hose and the gasoline filter are not functioning correctly.

Ignition setting

Gasoline engines are equipped with an ignition system that ignites the fuel. The timing of the flash will affect the motor performance. In mass production at the factory, the ignition of the chainsaw is not adjusted. Marks are placed on the corresponding rotating elements, which are aligned during adjustment. Incorrect adjustment leads to the fact that the mechanism starts and stalls.

Before adjusting, check the dryness of the spark plug and the performance of the ignition circuit. The voltage supply cable to the plug is brought to the cylinder with a small gap and the starter is started. If there is no flash, test the cable with a probe. Then check the serviceability of the wire to the disconnecting button.

If the cables are intact, then check the ignition coil. This is done with a special tester to ring the device. In this case, the indicators on the device must coincide with the technical characteristics of the coil, which are prescribed in the instructions for use. If inconsistencies are found, then the ignition unit changes to a workable device.

This shows how to quickly set the gap between the ignition coil and the magnet using a piece of plastic cut from a bottle as a probe. You can also use a four-fold A4 sheet or a piece of cardboard from a cigarette pack.

The coil can be damaged by vibration when dropped or bumped, so work with caution.

When you hit the gas

Clogged or unregulated combustible fuel mixing assembly;
A clogged air filter does not provide the required air flow when the load increases;
A dirty gasoline filter does not allow the required amount of mixture to pass through;
Cylinder and piston wall rubbing.

Low octane fuel becomes the reason for brakes, because this circumstance does not allow the engine to reach the required power when the load increases.

Sources:

http://benzopilok.ru/brend/stihl/kak-zavesti-benzopilu.html
http://crast.ru/instrumenty/kak-zavodit-shtil-180-na-holodnuju
http://specmahina.ru/benzopila/stihl-ne-zavoditsya.html

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