Chainsaw Calm does not start Reasons

Chainsaw wet spark plug: why

and what to do

Household and professional chainsaws are equipped with two-stroke internal combustion engines that are simple in design and reliable in operation. A significant portion of drive failures occur due to defects in the fuel system. Why does a chainsaw light a candle?

and how to fix this problem with your own hands?

The power units that make up the entire range of chainsaws operate on a precisely dosed mixture of fuel and special motor oil created for the operation of two-stroke engines.

In the carburetor, fuel and air are mixed in a ratio of 1:16, after which the air-gasoline mixture is supplied to the combustion chamber.

Consequences of running an engine with untuned fuel equipment

The traction properties of the motor and the duration of its service life depend on the composition of the consistency.

• Working with a poor consistency initiates a drop in power, overheating of the cylinder and intense wear of loaded parts and components of the chainsaw.
• It is no longer safe to work with a rich consistency. The malfunction is manifested by an increase in the time it takes to reach operating speeds, increased fuel consumption, and smoke from the muffler.
• There is also intense formation of carbon deposits in the combustion chamber
  and loss of mobility of the piston rings.

Chainsaw Calm First Launch Video

Preparatory running-in of a chainsaw after the first start-up is an essential procedure, both for a new and also for a restored tool. The process allows you to increase the service life of the unit and saw set through the use of lapping of moving units and parts, working in gentle load mode. For beginners, the break-in procedure allows you to acquire the ability to work with chain equipment.

Content

Preparing to use the chainsaw for the first time.

The process of first starting a gasoline saw before running in must be carried out with the bar installed and the chain placed on its surface. Create a launch

Using a motor without a saw set is not recommended, because the engine will not receive the required load. Operating the unit at high speeds will accelerate its early wear and breakdown.

High engine speeds without the tire, chain and clutch cover installed during start-up can injure the operator due to the released clutch.

In addition to the installation and option of the headset, before starting the internal combustion engine of the chain saw, its owner must perform two fundamental steps:

• Prepare the fuel mixture correctly;
• Make sure that there is an assortment of lubricant entering the tire channels that lubricate the chain.

In new and repaired chainsaws, the moving parts are ground in during small loads placed on the tool during break-in. In order for the tool to reach its rated power, it will be necessary to produce about 7...10 tanks of fuel mixture.

Preparing a fuel mixture for a chain saw.

Since the manufacturer installs two-stroke engines on most of the chain saws available to consumers, which do not provide separate lubrication of the rubbing parts, it is of fundamental importance to prepare the correct fuel mixture during break-in. It is prepared from gasoline and two-stroke motor oil in a certain proportion recommended by the chainsaw factory.

What gasoline should I use for the fuel mixture?

The base is gasoline with an octane rating of more than 90. For Russia, Belarus, Kazakhstan and other CIS countries, AI-92 is a good fuel option. Beware of the introduction of unknown types of fuel, and similarly the use of certain additives that increase the octane number. Over time, additives lose their characteristics, and gasoline becomes of low quality.

The introduction of low octane fuel during running-in and operation of a chain saw causes uneven operation of the engine and its knocking. With all this, there is an increase in the engine temperature and an increase in the load on the main bearings. In most cases, far-fetched savings lead to wear of the cylinder-piston group, which requires significant funds to restore it.

READ How to Sharpen a Chainsaw Chain with a Screwdriver

When running in a chainsaw, it is not allowed to use gasoline that has been stored for more than 2 months. During prolonged storage in fuel, natural processes of polymerization and resin formation begin to occur, which leads to the formation of soot in the combustion chamber.

Chainsaw calm 1st start video.

Often new owners of chainsaws have a question about what kind of gasoline to pour into the tool tank: leaded or unleaded? Leaded fuel is used to start an engine without a catalyst. If your saw has a catalyst (greenish gas cap), then use unleaded fuel.

What oil should I use in the fuel mixture, and in what proportions?

Two-stroke engine oil is used both for break-in and for continued operation of the chainsaw. If you do not want to take risks and experiment, then purchase the lubricant recommended by the tool manufacturers. Usually, large companies produce fuel and lubricants according to your wishes. This allows the manufacturer of chain saws and other gas-powered tools to guarantee proper start-up and trouble-free operation of their products.

Since branded oils for chainsaws Husqvarna, Stihl, Partner, Oregon, Jonsered are bottled from the same barrel, you can break in the tool with any of the indicated ones. With all this, it is of great importance to take into account the advice both in the instructions for oils and the advice of chain saw manufacturers. When using branded fuels and lubricants, when making a fuel mixture, follow the instruction manual for using gasoline tools.

If there is a lack of branded oils, break in the newest chainsaw, of course, using lubricants from third-party manufacturers of the JASO class, or, in other words, ISOEGB. According to the annotation, the ratio of the components is taken at the rate of 1:33. Here, the tool manufacturer does not recommend using four-stroke motor oils and two-stroke motor oils for water-cooled outboard engines, labeled as TCW.

How to start Shtil 180 video

how to start a Shtil

,
starting the Shtil chainsaw
, how to properly start
the Shtil
180
first launch video
.

To run in the Ural and Druzhba chainsaws, the fuel mixture is prepared at a rate of 1:15. That is, for 1 liter of gasoline you will need to add 66 ml of oil. After grinding in all the parts, the proportion is adjusted to 50 ml per 1 liter of fuel.

The fuel mixture for a chainsaw to be run in should be prepared in a clean container intended for storing fuel and lubricants.

1. Pour half the required gasoline into the container;
2. Add required amount of oil;
3. Gently mix the ingredients;
4. Pour in the remaining gasoline and stir.

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Check for lubrication.

The next stage preceding the successful start-up of the chainsaw, not only during break-in, but also during the operation of the tool, is checking the presence of lubrication. Where and what should I check?

1. Presence of oil in the tank;
2. Checking the lubrication channels of the saw blade;
3. Availability of lubricant on the needle bearing of the drive sprocket;
4. Presence of lubricant on the driven sprocket.

READ Carburetor Adjustment of Husqvarna 137 Chainsaw Video

If necessary, before running in and each start, clean the channels on the saw bar and lubricate the drive sprocket. If there is no lubrication on the driven sprocket, use grease or LITOL.

First start of the chainsaw.

After all the preparations and checks, it’s time to start the purchased chainsaw for the first time and then run it in. Since the tool motor is cold, we will present a cold start algorithm. To do this, place the saw on a stable surface, so that the saw bar and chain do not touch anything, and do the following series of actions:

1. Set the chain brake to the non-working position by moving the brake handle towards the front handle. In this case, the handles should touch.
2. Turn on the ignition by moving the switch to the extreme left position.
3. Next, move the air supply damper to the closed position.
4. For run-in chainsaws with a decompression valve, it must be pressed to reduce resistance and make it easier to start the unit.
5. We move the throttle valve to the starting position. For saws with combined controls, pull the damper lever out of the body. For saws with separate controls, press the throttle lever and fix it in an intermediate position.
6. Then we wrap our left hand around the front handle of the chainsaw and press it to the bottom.
7. We step on the protective shield of the right handle with our foot.
8. With your free hand, take the starter handle and smoothly pull it towards you until the pawls of the ratchet mechanism engage with the starter drum.
9. When you feel a slight resistance, make a sharp jerk on the starter handle towards you.
10. After the first flash in the engine combustion chamber, return the air damper to its original position (open) and restart the chainsaw.
11. When the engine starts, give full throttle and release the throttle lever. The damper start position lock will then automatically turn off.

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Stages of running in gas-powered chain tools.

After successfully starting up the chainsaw, it’s time to start running it in. First, we recommend that you read the manufacturer's instructions. The procedure itself consists of two main stages, which allow the moving parts of the gasoline tool engine itself and the components of the saw set to break in. Let's look at all the steps in more detail.

Running in the engine of a gasoline saw.

The motors of imported gasoline saws are tested with some differences from domestic units. Husqvarna, Stihl, Partner and others are not designed to operate at idle for long periods of time. In this regard, after starting the chainsaw engine, let it run for about 3...5 minutes at idle speed, and then start cutting wood with a diameter not exceeding 10 cm at medium speed. Sawing is best done in cyclic mode:

• 1…1.5 minutes work with minimum load;
• 15…20 seconds operation without load at idle speed.

READ Saw Shtihl 180 Assembly and Disassembly

During running-in and operation, the thickness of the log does not in any way affect the load exerted on the saw motor and saw set. The load directly depends on the force the operator applies during the sawing process.

Why is it not recommended to idle the power unit during the break-in process of any imported chainsaw? The reason here is this:

1. At idle, the fuel-air mixture does not enter the cylinder in sufficient quantities. It is only enough to maintain the torque of the connecting rod and piston group. Because of this, there is no complete lubrication of the rubbing parts.
2. Lack of lubrication causes temperatures to rise and increases wear on components.

The running-in of domestic chainsaws “Ural” and “Druzhba” is fundamentally different. The tool, developed in the USSR, requires the production of 3-4 tanks of the fuel mixture at idle speed with periodic re-gassing. In the future, it is allowed to work with partial load for 24 hours according to the above cyclic scheme. That is why more oil is added to the fuel mixture than imported analogues.

As a rule, after 5...7 full tanks have been used, the run-in tool of domestic and imported production reaches the full capacity set by the manufacturer. During this period you should not:

• Overheat the engine;
• Allow the chainsaw to idle for a long time;
• Operate at too high speeds;
• Give maximum loads when sawing.

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Running in the saw set.

The saw set of a chainsaw, just like the engine, needs to be broken in. The main point to pay attention to is:

• Chain lubrication;
• Cutting blade tension.

The first step is to “soak” the saw chain in oil. To do this, take a clean container, place the cutting blade in it and fill it with the oil recommended by the manufacturer. Within a few hours, all moving and rubbing components will be completely saturated with lubricant.

At the next stage of running in the saw set

chainsaws, you need to tension the chain so that it rotates freely by hand, and run it at idle for 3...5 minutes. After which the engine is stopped and its tension is checked. If necessary, tighten the cutting blade. Test cut small branches without putting any load on the bar. Stop the tool and tighten the chain.

When stopping the engine, allow the chain to cool. And only after that do you stretch it.

Source

Algorithm for determining the causes of poor mixture formation

Read:

In any case, a wet spark plug on a chainsaw indicates an obvious imbalance in the composition of the air-fuel emulsion

.
Already at a fuel to air ratio of 1:14, the conditions for spark formation worsen; the lack of air prevents the normal combustion of the fuel-air emulsion compressed in the combustion chamber
.

The main reasons for over-enrichment of the mixture in most cases are standard:

• air intake filter clogged;
• incorrect carburetor adjustment;
• interruptions in the operation of the ignition system;
• It is also possible that the quality of gasoline is poor and that the starting sequence of the power unit is not correct.

The chainsaw does not start, it floods the spark plugs

Chainsaw

It won’t start,
the spark plugs are flooded
, what should I do? Vkontakte community:

The oiling of the spark plug is facilitated by the use of heat-resistant motor oils for 4-stroke engines, high wear of the compression rings or the entire piston group as a whole.

Read:

In the first case, the problem is solved by bringing the air intake device into working order. It is recommended to blow out an exhausted paper filter with a reverse air flow or, at best, replace it. Refer to the supplied instruction manuals for cleaning methods for other types of filters.

• The carburetor is adjusted with the engine warmed up to operating temperature. The power unit is brought to optimal mode by rotating the adjusting screws for the quantity and quality of the mixture. The success of the work is determined by knowledge of the design of the fuel supply system and the interaction of all components.
• In particular, the increased complexity of adjusting carburetors with built-in compensators and other automatic control elements. Such equipment is configured using special equipment that is supplied to service and repair centers.

If the engine cannot be tuned, the cause of excess fuel in the emulsion may be a leak in the valve or a stuck carburetor float itself.

The final result of the work performed:

• fast acceleration;
• stable operation at idle;
• restoration of traction parameters;
• absence of increased smoke and detonation noise.

Criteria for the selection and operation of spark plugs

The simplest indicator of mixture quality is the porcelain insulator of the spark plug center electrode. Any shade of brown indicates normal quality of the mixture; white or sooty insulator indicates a poor or over-enriched emulsion composition.

The heat rating of the spark plug in use must meet the stated requirements.

• The cause of oiling may be a so-called “cold” spark plug, which can be visually identified by a short insulator. Interruptions in sparking are possible if the gap is adjusted incorrectly or due to natural contact burnout.
• The recommended distance between the spark plug contacts is indicated in the instructions; in the absence of information, you can focus on the standard value of 0.7-1 mm. With a smaller gap, the efficiency of ignition of the fuel-air emulsion decreases; with an increased gap, interruptions in spark formation are possible.
• It is not recommended to burn a damp or oily candle on an open flame due to the risk of cracks and premature failure.

Over-enrichment of the mixture in the combustion chamber of a technically sound chainsaw is eliminated by purging the engine. To do this, just remove the spark plug and crank the crankshaft several times with a manual starter.

Most often this happens to beginners when, when starting up for the first time, they miss a “pop” on the closed air damper and continue to pull the starter handle, respectively, a lot of gasoline is produced in the combustion chamber, and not enough air prevents the gasoline from igniting.

The problem can be solved simply:

1. Use a spark plug wrench to unscrew the spark plug and check its condition. If the spark plug is wet and there is a spark, then it has been flooded. We open the air damper, turn on the switch button, squeeze the gas “all the way” and start it. The excess gasoline should come out of the saw's exhaust and the saw will start.
2. Use a spark plug wrench to unscrew the spark plug and check its condition. If the spark plug is wet and there is a spark, then it has been flooded. Turn the chainsaw over with the spark plug hole down and turn the starter ten times, while excess fuel will flow out of the engine cylinder. Then wipe dry (calcine) the spark plug, or replace it with a new one and try again to start the engine exactly following the operating instructions. If the spark plug is completely dry, this means that no fuel is entering the engine. And since there is it in the tank, then the problem is probably in the carburetor. You can take a little mixture into a syringe, inject it into the cylinder, tighten the spark plug and try to start the engine. But if the engine starts and immediately stalls, then the problem remains and you need to contact a service center.

The spark plug is an integral part of any internal combustion engine, providing the energy needed to ignite the fuel. If it is corroded, dirty, worn or otherwise damaged, the engine will either not start or perform poorly. A poorly functioning motor in a Stihl chain saw can mean more work for the operator and can be dangerous. Therefore, Stihl recommends replacing the spark plug every 100 hours of operation.

No spark

If the chainsaw does not start, and you have not experienced any particular difficulties before, the first thing to do is check the spark plug. There may simply be no spark between its electrodes; this can only be determined after removing the spark plug. We check its functionality; to do this, we stick the spark plug into the cap of the high-voltage wire, and place the metal side of the spark plug on the cylinder (or other metal object). Now we do several manipulations with the starter, and if during them no spark is observed, the problem is specifically in the spark plug.

Attention : you must make sure that the ignition is on, otherwise the spark plug will not show a spark in any case. Also, to make sure that it is the spark plug and not the ignition coil that is faulty, take a similar spark plug and check for a spark on it. If present, the problem can be solved by simple replacement.

Read also: Which vacuum cleaner is better to choose for your home reviews

Ignition coil malfunction

Repairing the ignition coil is impossible; its design cannot be disassembled. But you can only check the performance of a part with a special device. If there is no spark to the spark plug, do not immediately blame the ignition coil; carry out diagnostics. Some people mistakenly run to the store for a new reel, so first make sure it’s broken and then make a new purchase.

Supplying fuel to the chainsaw

If the Shtil 180 does not start, there is a spark, then first of all we check the presence of fuel in the chainsaw tank. Of course, the problem is funny, but quite common. Next, we check whether fuel is entering the carburetor; to do this, you can disconnect the gasoline hose from the carburetor and pump in gasoline. After several manipulations, gasoline should come out of the hose, but not in a large stream, but in small jerks. If gasoline does not flow or flows poorly, the problem may be the following:

The fuel supply channel is clogged;

The fuel filter is clogged directly.

Read the article that describes why gasoline does not flow into the chainsaw. The described tips apply to Shtil 180.

As unusual as it may sound, even a too full fuel tank can cause this. If the pressure is high, the fuel hose may be squeezed out or the required vacuum may not be created. Be sure to monitor the quality of the fuel used; for proper operation, never leave the chainsaw with gasoline for more than 2 weeks. Long-term storage of fuel in the tank contributes to the creation of resins and the process of polymerization of components.

Faulty crankshaft bearings

If the Shtil 180 does not start and the fuel flows correctly, you will have to look further, namely into the crankshaft. Its bearings tend to wear out, which causes play to appear when you try to shake the flywheel. The fact is that in the presence of backlash, the flywheel magnets are attracted to the ignition coil, or rather to its contacts.

Repairing and replacing bearings requires disassembling the engine, so this work should only be performed by skilled workers or people with experience. You should not disassemble the engine if this is your first time.

Floods the spark plug

In some cases, the Shtil 180 starts and stalls, or does not start at all. Then we check the condition of the spark plug; it may be flooded. There can be two reasons for this “overflow” - improper starting of the engine when cold and a malfunction of the carburetor. We are trying to solve the problem with the following steps:

Remove the spark plug;

We turn the chainsaw over to the other side and wait until the excess fuel flows out;

To be sure, we pull the starter several times, so that gasoline will certainly come out of the cylinder;

We return the spark plug to its place, install the cap and try to start the engine again with the starter.

The role of the spark plug

The spark plug in a Stihl chain engine, or any engine, is a simple device. Every time the engine flywheel completes a revolution, the magnet attached to it induces an electric current in the static magnet. This current generates a spark through the plug's electrodes. The spark ignites the fuel-air mixture in the combustion chamber, which moves the piston and makes the engine run. If the plug electrodes are spaced far apart or are covered with oil, carbon deposits, the spark is intermittent or weak, resulting in incomplete combustion and poor engine performance.

Why does the spark plug on a chainsaw flood?

When a spark plug on a chainsaw is poured, you must immediately conduct a thorough check of the tool.

1. Checking the plug. Part of regular maintenance of your Stihl chain saw is to remove the fork and inspect it (every 10 to 15 hours of operation is recommended.) If the motor is running normally, the outer electrode will likely be covered in light brown deposits. The operator must check the gap between the electrodes using a special tool. If the engine is running normally, the problem appears in the condition of the plug. Thick black deposits indicate that the fuel/air mixture is not balanced. In other words, there is not enough air in the mixture. On the other hand, wide gaps or corroded electrodes are indicators of a lean mixture. Oil on the plug indicates a leak.
2. Clean or replace? If the fork is coated with light brown deposits and the clearance is correct, the operator does not need to do anything to the fork. It is enough to return it to its place, and the chainsaw should continue to work normally. If it is covered with black deposits or oil, you need to remove this layer with sandpaper. If necessary, adjust the gap with pliers. One of the conditions indicating the need for replacement is electrode wear. If the engine stalls, you need to check it with a spark plug tester and replace it if the spark is not strong or appears every once in a while.

Avoid using ethanol fuel

When the spark plug of a Shtil chainsaw fills, you can suspect the fault of low-quality fuel. Regardless of the condition of the plug after 100 hours of operation, Stihl recommends replacing it with a new one. Use a resistor type plug and check the manual for your model of Stihl chainsaw for recommended replacements. If your fork needs replacing because it is too worn, it may be because you are using ethanol-laced gasoline.

Ethanol burns differently than gasoline and can cause the engine to overheat. One of the symptoms of this is worn electrodes, and then flooding of the spark plug. Stihl recommends 89-octane ethanol-free gasoline. Under no circumstances should gasoline contain more than 10% ethanol.

How to quickly fix the problem?

It is important to know why the spark plug on a chainsaw is flooded and what can be done in this case. Stihl saws have a choke that makes cold starting easier, but the operator must use it correctly. When it closes the throttle, the carburetor sprays additional fuel into the combustion chamber. If the engine does not start within the first three or four thrusts, the fuel and air mixture become unbalanced. And if you continue to pull the starter when the throttle is closed, a large amount of fuel will ignite and the spark plug will flood.

If you find out that the chainsaw will not start, and the spark plug is in perfect order, read our recommendations in the article -?

You can simply wait for the fuel to drain, but there is a quick way to clean it.

1. Place the chain saw on a level surface and make sure the chain release system is activated. Pull the wire from the spark plug and remove the plug using a wrench. Check the electrodes and wipe them with a rag if they are full of fuel.
2. Unscrew the air filter cover and remove the air filter. Clean it if it is dirty.
3. Set the main control lever to the minimum throttle or open position. Pull the starting rope five or six times.
4. Install the air filter, spark plug and connect the spark plug wire. Leave the throttle open and pull the starter cord several times. The chain saw should start.

Things you will need to work on the Stihl saw:

• gloves;
• spark plug key;
• rag.

1. When cold starting a Stihl chainsaw, move the drive control lever to position after the fourth attempt to start it to avoid flooding the spark plug again. Move the lever to the minimum shutter position once the saw starts.
2. Removing the air filter, spraying the original fluid into the carburetor and using the starter rope. This is another quick way to clean your engine. This creates a better fuel mixture that is easily ignited and the engine automatically runs smoothly and correctly.

Warnings

1. Wear gloves when operating a chain saw.
2. Before starting the saw, make sure the panel is closed and the chain has stopped rotating before servicing the chainsaw.
3. It is never a good idea to check the ignition system when the spark plug is removed, as this may result in a fire.

Fills a spark plug on a chainsaw: what to do?

The engine of a high-quality chainsaw starts and runs without problems if you provide it with constant technical service, change filters and adjust the carburetor on time. The spark plug is poured into the engine when it is hot. I change the Husqvarna spark plug with them. But even if these requirements are met, unexpected breakdowns occur from time to time: the spark plug floods or its gap changes. Let's talk in this article about the situation when a spark plug on a chainsaw floods: what to do?

Why does the candle flood?

New Shtil Chainsaw Doesn't Start 180 Reasons

Content

How to start a chainsaw

The question of how to start a chainsaw can be divided into two parts:

1. The machine is designed according to the instructions
2. What to do if you can't get started

The information from the first part will be useful to those who have lost the instructions, or those who have few information instructions.

The second part will tell you what to do if you have done everything according to the instructions correctly, but the chainsaw still does not start. Also, it will be useful for those who have a bad saw to start a chainsaw.

We installed the chainsaw according to the instructions

Different cans may be produced differently. We will analyze two of the most popular mechanisms used to make chainsaws that exist today. For example, take the Stihl MS 180 chainsaw and the Echo CS-352ES. If you have a different brand of chainsaw, try starting with an analogy, as you most likely have the same or similar mechanism.

Before I go into the landing process, I want to point out that some chainsaws in the manual say that you need to engage the emergency locking brake before starting the chainsaw. It's safer to say that. However, with a fixed brake, it is more difficult to make a chainsaw, so it is better to unlock it. If you do everything in your head, then nothing will be done for you during the launch. If you are afraid that without locking the chainsaw's brake when you try to start it, it may harm you, then it is better not to handle this tool at all.

So let's start with the Stihl MS 180.

The first thing to do before starting this chain saw. This is to move the adjustment lever to the lower position (Fig. 1). Please note that this lever only moves all the way down on the chainsaw when you press the gas button. So we tighten the gas button and move the lever down. Thus, we close the throttle in the carburetor and fix the gas on the gasoline saw in the pressed position.

READ Chainsaw Doesn't Start Spark Plug Wet

Figure 1 Once you have done this, begin to vigorously pull the starter handle until you hear the chain saw attempt to start and immediately go silent. After this, we move the lever to adjust the position of the damper on the chainsaw one step up (Fig. 2).

Figure 2

• In this position, pull the starter handle until the chainsaw starts. In this case, if it could be started, it is because the throttle grip is locked in the depressed position, it will immediately operate at high rpm.
• Then we press and release the gas button on the chainsaw once. the damper control lever automatically moves to the working position (Fig. 3), and the speed of the chainsaw will drop. Now you can work.

Figure 3

• If you need to start a hot chainsaw, simply set the lever to the position as shown in Figure 3 and you are ready to start.
• To stop the chain saw engine, lift the throttle control lever to the up position (Fig. 4).

Figure 4

Now we will analyze the second second mechanism that allows you to start the chainsaw.

Calm WILL NOT START, what should I do?

For even more information about repairs and tool selection, visit our website www.LookTool.Ru, we welcome everyone.

Reasons why the STIHL saw does not start.

Because of little things, this happens.

First, before attempting to start, turn the ignition on by moving the appropriate rocker or chainsaw switch (Figure 5).

Figure 5 Then press the paddle primer several times (Figure 6). Gasoline is pumped into it, and after that we press it 3-5 times more. If you have a chainsaw

without primer, proceed to the next step.

Fig. 6 Now pull out the lever that regulates the position of the damper completely on the chainsaw (Fig. 7). In some chainsaws, to start it, this lever can only be pulled when the throttle button is pressed, while the throttle button itself is locked in the pressed position. The rest don't need to press the gas button. However, in this case, the gas on the chain saw is locked automatically or not locked at all.

Figure 7

READ Saw Stihl Ms 180 Won't Start

Why doesn't the chainsaw start?

If you have done everything according to the instructions and the chainsaw does not start, then there is something wrong with it. One of the most common reasons may be a malfunction: no spark; no fuel; the air filter is clogged. So, below, we offer a procedure that will help determine the reason why the chainsaw does not start.

Procedure if you don't start the chainsaw

The first thing I would like to point out is if you don't start the chainsaw. Do not tighten the screws on the carburetor. Unless you're an expert, you won't be able to set anything up yourself and you won't be able to run the chainsaw.

The following steps required to start the chain saw are performed in the order shown, starting with the next step only if the previous one does not help.

1. Try to start by simply leaving the chainsaw alone for 5-10 minutes. She may have had a candle when she landed. it happens. Then try again using the instructions.
2. Remove the housing cover from the chain saw and try to start working without it. If the filter is dirty, it should be washed in soapy water and dried or replaced with a new one.
3. Unscrew the spark plug from the chainsaw. Check for spark. If there is no spark, try installing a new spark plug. If a spark does not appear, this means that the ignition unit is damaged and the saw must be transported for repairs. True, visual observation of a spark does not mean that the ignition unit is working. If there is a spark and the chainsaw fails to start, follow the steps listed below.
4. If there is a spark, but the plug is wet, then turn the chainsaw to drain any excess gasoline from the cylinder if it accumulates there. Turn the starter without a spark plug 10-15 times to ventilate the combustion chamber. Light the candle and reinsert it, or replace it with a new one if available. Try to start working according to the instructions.
5. If the candle is dry, then put one or two cubes of the gas mixture into the syringe and pour it into the cylinder. Try to start the chainsaw. It is possible that a small boiler has entered the carburetor, which prevents fuel from entering the combustion chamber. This lump is likely pulled out by the flow generated when the gas saw is started, adding fuel directly to the cylinder.
6. Turn off the muffler and remove it, being careful not to damage the gasket between the muffler and the engine. Try starting without a muffler and air filter. With the muffler removed from the chainsaw, you can inspect the piston from the inside. If there are burrs or linings on the walls of the cylinder or piston, or the ring on the piston is pinched by burrs, then this will be very difficult, as this means that the piston is damaged or worn. This usually occurs when the fuel oil mixture is not filled. If such a malfunction occurs, you will have to contact a service center and perhaps think about buying a new chainsaw, since replacing the piston rod is a rather expensive operation.

READ Chainsaw Carburetor Does Not Get Fuel

Thus, we have analyzed in this article how to make a chainsaw “according to the instructions”, as well as what to do if the chainsaw does not start. We hope you found these tips helpful.

Characteristic

A little earlier, the chainsaw was considered a fairly strong, and at the same time, expensive and heavy professional equipment used for logging work. Attention to those wishing to register for a chainsaw - the candle is filled with a chainsaw). Buy a Husqvarna 137 carburetor and fill the spark plug with futlik is there a breather on this chainsaw?. But over time, manufacturers have significantly expanded the range of such equipment, producing a huge number of light and small-sized products for work in suburban areas.

Nowadays, such units as in the following photo are no longer just professional equipment for woodcutters. This is a tool needed in construction, repair work, pruning dry branches, preparing firewood, and the like. But for it to work without interruption, you need to know what to do if the spark plug on a chainsaw fills. Or how to repair similar equipment in case of breakdowns of its other components. Why does the spark plug on the chainsaw light up? The answer is simple: this happens when the unit starts. Question: “I’m filling a spark plug on a Shtil 180 chainsaw, what should I do?” — arises for every owner of an instrument of this brand. We'll talk about this further.

Business interruptions

The chainsaw is no longer considered an innovative technique intended exclusively for professionals. Let's figure out why the spark plug on a chainsaw floods, how to prevent it and how to deal with it. Why does a chainsaw fill a candle - youtube. Nowadays, many summer residents and owners of personal plots have a similar universal unit in their arsenal. After all, modern manufacturers offer customers a wide selection of types and models of units of this kind.

To be honest, their design is generally not too complex. Therefore, if problems arise with their operation, any more or less experienced summer resident will figure out why he fills a candle on a chainsaw on his own.

If equipment of this type is provided with proper use and maintenance, spark plugs for Stihl chainsaws rarely become unusable. But if one day the chainsaw does not start, you need to figure out the problem in order:

1. A spark plug for a chainsaw is an important part for units of this kind. If problems arise with it (for example, it floods), they can lead to breakdown of all equipment;
2. If, upon inspection, the chainsaw spark plug feels completely dry to the touch, this indicates a lack of fuel supply. Fills the candle, Husqvarna oil 25 ml per liter after work looked at the candle and how. Why the spark plug on a chainsaw floods: reasons and. Why is this happening? The salt of the problem is concentrated in the carburetor. Be sure to clean the fuel filter and turn the engine back on. Nothing happens? Then the carburetor needs to be disassembled and examined, but it is better to entrust this matter to specialists from the service center;
3. If the unit does not start, then this may indicate a problem with the spark plugs of a different nature - it is flooded. Your chainsaw is calm: the spark plug is flooded and the engine of the unit does not start? To fix the problem, remove the flooded spark plug and dry it thoroughly. At the same time, it does not need to be heated. It is enough to drain the fuel mixture from the spark plug hole and leave the part to dry for half an hour. Next, put it back in place and start the engine. adjusting the carburetor why the spark plug on the chainsaw fills up the Ural chainsaw. In addition, it is important to inspect the contact between the tip of the spark plug and the high-voltage wire;
4. It is important to ensure that the chainsaw spark plug gap is adjusted correctly.

Why does the Shtil chainsaw not start?

To pre-diagnose the causes, check the operation of the fuel pump, the appearance of the spark plug, the flow of fuel, the functionality of the carburetor and the condition of the filter. Pay attention to the performance of the cylinders, pistons, muffler, and crankshaft bearings. After preventive measures, they try to start the chainsaw. Insufficient lubrication of rubbing parts also becomes a factor in poor performance.

No spark

The spark on the spark plug is checked. The functioning of an element is influenced by various factors. When testing the mechanism, the reasons are revealed:

• insufficient carburetor adjustment;
• large oil in gasoline;
• clogged fuel and air filters.

Due to working in such conditions, carbon deposits accumulate on the spark plug contacts. Subsequent corrosion of the conductors becomes the reason that there is no spark in half of the cases of malfunctions. This happens because the gap between the modular contacts changes. To check the spark do the following:

• the tip of the high-voltage cable is removed;
• the candle is unscrewed;
• the tip is put in place;
• the candle is leaned with its wide end against the cylinder;
• start the starter.

If during startup a bright spark resembling lightning appears between the electrodes, then the ignition unit is working. If there is no flash, clean the entire element and adjust the gap between the conductors. Sometimes there is no clearance between the flywheel and the ignition coil. When the flywheel rubs, scratches are visible on its exterior.

Ignition coil malfunction

The module or coil cannot be disassembled; its suitability is difficult to determine without testing devices. Modern ignition systems are durable, lightweight and small in size. They are characterized by almost trouble-free functionality. Problems with a chainsaw malfunctioning due to the ignition coil can be resolved independently.

The outlet wires are tested for damage (including internal damage) that occurs due to vibration leading to friction. If no cracks are detected, then the ignition coil needs to be replaced. Sometimes a module malfunction is indicated by a weak, barely visible flash when the saw heats up. This occurs due to an increase in the temperature of the coil, which leads to an increase in the resistance of the transistor.

The peculiarity is that at the beginning of operation a spark may appear, but after prolonged use it becomes dim and disappears. Modern ignition coils cannot be repaired in a home workshop, so they are replaced with suitable elements.

Fuel supply

After unscrewing the spark plug, a wet coating is found on its surface. This indicates an excessive supply of gasoline to the combustion chamber. For this reason, the tool does not work or stalls, because the fuel does not ignite.

Another inhibitory factor is a clogged breather - a small hole in the gas tank cap. It is cleaned with a needle, otherwise the Stihl MS 180 chainsaw will not start. To determine the incorrect fuel supply, the following steps are carried out:

• remove the candle;
• pour 2 cubes of gasoline into the hole of the candle with a syringe;
• put the ignition device in place and put on the high-voltage wire cap;
• the lever is moved to the hot start position;
• pull the starter handle a couple of times.

If the tool starts and immediately stalls, then the fuel line is tested further. Check the gasoline filter, splashes from the engine crankcase, and the integrity of the partition in the pump when unscrewing the cap.

Crankshaft bearing failure

If the bearings are defective, a slight play is felt. To identify it, the flywheel of the Stihl MS 180 saw is swayed from one side to the other. The movement indicates that the flywheel is being moved towards the electrodes by its own magnets, as a result of which there is no spark. To remove the mechanism, dismantle the cutting element, remove the filter and clutch cover. To lock the crankshaft, remove the recoil starter cover and tighten the two bolts.

The clutch is unscrewed clockwise using the key. Remove the drum with the sprocket, replace the old clutch and tighten it until it stops. The crankshaft is locked so as not to break the starter. The mechanism is assembled in the reverse order. To tighten, the brake handle is tilted forward, the tool is wound in, and then removed from the brake.

Bearings with defects are less often detected (the diameter of the holes in the cage is increased). To determine, disassemble and measure using a micrometer. Broken bearings are indicated by regular knocking noises. In this case, urgent repairs are required, because if the integrity of the crankshaft is damaged, the piston group and cylinder will fail.

Floods the spark plug

In this case, the spark is not able to ignite the fuel, which enters in large quantities into the firebox to burn the combustible mixture. If the spark plug is flooded, then the carburetor is faulty or the cold engine does not start correctly. The engine is purged; the procedure is performed with the ignition off and away from open flames. To ensure fuel ignition at the time of start-up, clean the mechanism:

• unscrew the candle, wipe it dry, let it dry for half an hour;
• a large layer of carbon deposits is removed with a file;
• the gap between the contacts is adjusted;
• turn the tool upside down and drain the gasoline;
• in this position, pull the starter several times (to remove residual fuel);
• Reassemble in reverse order.

Briefly about the main thing

This model is the pride of the German manufacturer and is a specific piece of equipment created for low-level work. It can be used for less than 20 hours every month. The reasons for the chainsaw not starting and when the chainsaw does not start is calm and the spark plug is flooded. This beautiful device will easily help you take care of your garden, prepare firewood for the winter (see how to cut down a tree), clear areas, and will also be an indispensable assistant in other areas of, let’s say, simple manipulations.

We can say that these are mini-model chainsaws, since they have a low weight of 3.9 kg

, it does not have a large tank mass, both oil and fuel. Let's analyze the possible reasons: the user fills the candle. chainsaw Shtil 180. The manufacturer has equipped this device with a two-stroke engine with sufficient power for light work.

Moreover, it is quite quiet since during operation the noise level does not exceed 98 dB. So to better understand the level of loudness itself, just compare its noise with conversational speech, which has an indicator of 76 dB.

General information

The characteristics of this saw are a source of pride for the German manufacturer. At the same time, the unit is a tool that is designed to perform a small amount of work. The tool is positioned for domestic use, which confirms the intensity of its use, which should not exceed 20 hours per month . Having such a unit at your disposal, it will not be difficult for you to maintain order in your garden, prepare firewood for the winter, and also clear areas. At the same time, he will be able to help you in solving other problems where there is no need to perform complex manipulations.

Main characteristics

The saw in question can be considered a compact option, because its weight is only 3.9 kg. At the same time, it has a large capacity oil and fuel tank. The device performs its operating functions using a two-stroke engine, the power of which is sufficient to solve simple tasks. In addition to this, during operation this tool does not create much noise, the level of which does not exceed 98 dB . For ease of understanding, it is enough to say that human speech creates noise at a level of 76 dB.

• The Stihl 180 chainsaw has a power of 2.6 watts. In principle, this is enough, remembering that we are talking about a tool for household use.
• The capacity of the oil tank is 0.145 l, the fuel tank is 0.25 l.
• The tire provided by the design has dimensions of 350 mm, with a pitch of 0.325 inches.

Winding device

As with other saws, the carburetor plays the role of the main starting device. Looking in more detail at the carburetor that the Stihl 180 chainsaw is equipped with, it should be noted that it has a single adjustment screw. In other words, it is a kind of idle adjustment screw . In this case, the jet, which bears the full load, is motionless all the time.

In other words, the regulation is not applicable to him. In turn, there is no way to influence the full load in any way. You also need to pay attention to the factory settings, due to which the air-fuel mixture is supplied directly to the engine. Moreover, this principle remains unchanged regardless of the operating conditions of the tool.

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Winding device

The basis of this type of model, as well as all other chainsaws, is the carburetor. But since we are talking today specifically about the Shtil 180 chainsaw, we will not deviate from the topic. So. The carburetor in this model has a single adjustment screw

, that is, this is a kind of idle speed adjustment screw. While the jet of the fully loaded load is stationary.

Chainsaw carburetor Stihl 180

In simple terms, we can say that it simply cannot be adjusted (see here), while the full load setting simply cannot be changed. It is important that the carburetor itself was configured at the factory in such a way that, regardless of the conditions under which the chainsaw is directly operated, the air-fuel mixture is supplied to the engine itself.

The saw does not start: reasons and solutions

First of all, it is worth noting the fact that the 180 chainsaw of this manufacturer is one of his best “creations”, but it also has its drawbacks. Why does the Shtil 180 chainsaw not start, what are the main reasons for the 180 and the spark plug flooding. Actually, which we will talk about now.

A fairly common problem is that the Shtil 180 chainsaw does not start and the spark plug floods
. The reason for this is that the oil that is poured in to lubricate the chain begins to leak. Since time is merciless and the seal is simply broken exactly in the place where the hose from the oil pump and the oil tank is actually connected.

Naturally, this problem can be solved, but given the design of this chainsaw, this will not be so easy, since you simply have to completely disassemble the device in order, as they say, to get to the right place. The video shows it more clearly:

• Many people are concerned about this question: why does the Shtil 180 chainsaw not start? If you believe the experts, then in such a situation you need to first open and then close the cap located on the gas tank. Or take out and dry the candle. Or try to ventilate the combustion chamber. In most cases, this kind of manipulation is quite enough for the device to work. But there are times when the Shtil chainsaw does not start, but there is a spark...
• In the above case, you need to directly check the gasoline supply
  , air filter and the immediate performance of the spark plug. Since the basis of this type of breakdown is the breather, namely its contamination. Because when it is completely clogged, a kind of vacuum appears in the gas tank itself, which simply interferes with the fuel supply process. Solving this issue is not difficult, since all you need to do is clean it using a needle.
• There are also situations when the device basically started up, but immediately stalled
  .

The main reasons for this type of malfunction are the carburetor and filter, which could simply be clogged.

In order to exclude the saloon from damaged objects, it is necessary first of all to disconnect the fuel hose from the carburetor itself and actually check whether fuel is leaking from it. You must remember that during proper operation of the chainsaw, gasoline must flow out in a dense and stable stream.

. Why the Shtil 180 chainsaw won’t start and how to solve the main reasons The spark plug floods. It is also not uncommon for the Shtil 180 chainsaw to not start when hot and actually stall after switching on, or to hold power for a fairly short time.

In this case, the problem of breakdown lies precisely in the muffler, which can simply be clogged with any deposits that arise through the operation of the device and which settle during the exhaust process.

• Also, a fairly common cause of tool malfunction is insufficient lubrication of the device chain itself
  . The reason for this may be channels that are simply clogged, or the reason is an oil line that is leaking.

Why does the chainsaw immediately stall and choke when you press the gas?

Chainsaws are fairly reliable and simple designs. Therefore, if you properly care for them and handle them based on the manufacturer’s recommendations, then they fail very rarely and various types of breakdowns are quickly eliminated. But if you are faced with this situation and want to repair your instrument yourself, without resorting to the help of professionals, then delve into the information presented below.

In fact, it is impossible to unambiguously and accurately determine the reason why the tool does not start or stalls when you press the gas, since there are quite a lot of factors influencing this. But do not forget that starting from the fact that the chainsaw is equipped with a simple two-stroke engine, such conditions as lubrication, fuel, spark and air are important for its effective performance.

Consequently, the carburetor directly prepares the fuel-air mixture, the filter cleans the air from dust, the ignition unit and spark plug create a spark, and the gasoline contains lubricant.

That is why it is necessary to search for the causes of this kind of breakdown in a sequential order, starting directly from the simple ones and gradually moving to the complex ones. And this is an important factor in proper repair, since the person who, without thinking, begins to disassemble the carburetor, puts it at risk. Since this kind of unit must be repaired or adjusted directly in special workshops (read about carburetor adjustment).

Wrong fuel

An important fact is that for trouble-free operation of the tool it is necessary to pay close attention to the fuel itself . Since if this kind of mixture is not prepared correctly, then most chainsaws simply will not start. Consequently, not every owner will think to look for the cause of the breakdown in the fuel. That is why, in order for your tool to always work correctly, you need to use only high-quality gasoline for the mixture.

And also use only the oil that is made by the manufacturer of your tool. In addition, it is important to prepare this kind of mixture in the amount that you will definitely use in one or two weeks, but no more (see the proportion of gasoline and chainsaw oil).

Because otherwise, overexposure of the mixture directly in the canister will lead to it losing all its octane properties and this will lead to significant problems with the instrument.

Filling the mixture when the mechanism is running

The cause of a breakdown can also be the direct pouring of the mixture into the spark plug at the moment when the mechanism is started . In order to solve this problem, you need to turn out and dry the candle, but remember that it should not be heated under any circumstances. Excess fuel must be drained through the hole (spark plug), wait 20-30 minutes, then put it back in place and try to start the tool again.

There is no spark and the chainsaw does not gain momentum

The chainsaw stalls when you press the gas because there is no spark . This can happen when there is no good contact between the tip of the spark plug and the wire (high voltage). However, if this kind of connection works correctly, but there is still no spark, then the ignition unit (electronic) is the cause. It is important to note that these types of spare parts cannot be repaired, so they can only be replaced.

Do not forget that by examining the spark plug you can obtain significant information regarding the breakdown of the chainsaw. Since if its surface is dry, then the reason for this is the cylinder, into which fuel is not directly supplied. That is why you will have to check the entire range of its supply step by step. If the spark plug is covered in black soot, this means that the carburetor is not working properly, that is, it supplies either a lot of fuel or pours oil directly into gasoline.

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There is not enough fuel to supply and operate the chainsaw at full power

If the chainsaw stalls when gas is added, this means that there is not enough fuel supplied for the chainsaw to fully operate . The reason for this may be either a clogged carburetor (its jet) or contamination of the filter itself (fuel). Remember that the first unit should be checked exclusively by professionals, but you can clean the second one yourself.

Filter is dirty

In addition, the cause of breakdown can be the filter (air) if it is contaminated with dust . But do not forget that each model has its own easily eliminated and characteristic features. It is for this reason that do not hastily start disassembling and repairing the instrument, but it is best to “walk” through the forums, where there are a huge number of reviews from various owners, so as not to make things worse.

Since, for example, a Stihl chainsaw stalls when you press the gas for a simple reason, namely a simple clogging of the direct breather.

In order to solve this kind of problem, all you have to do is disconnect the (fuel) hose from the carburetor and pay attention to whether fuel is leaking out of it. Since if the mixture flows in a full stream, this means that the breather is not contaminated, but if on the contrary, then the cause of the breakdown has been found.

Muffler as the reason why the saw stalls under load

Here is another reason why a chainsaw stalls when you press the gas - muffler . It is this part that can interfere with the full operation of the tool in cases where it is directly contaminated with exhaust resinous deposits. To do this, you just simply need to clean it.

Cylinder-piston group

Quite often the partner chainsaw stalls when pressed and the reason for this is the cylinder-piston group . Since by examining them, namely the piston and cylinder, you can easily determine the cause of the tool malfunction by directly replacing them. You can also directly bore the cylinder itself relative to the dimensions of the new piston.

But if after inspection you find that there is no damage on both the piston and the cylinder, then the reason may lie directly in the rings (piston). To do this kind of check, you need to insert a piston into the cylinder and carefully begin to rock it using a connecting rod. If you suddenly feel play, then the rings need to be replaced, as they are already worn out.

Insufficient chain lubrication prevents starting and the saw does not develop speed

Many people wonder: why does the chainsaw stall when I press the gas? The answer may also lie in insufficient chain lubrication (see chain saw oil), since the oil line may be leaking, or the direct channels may simply be clogged. That is why pay attention to the chain, because if it is dry, then without delay, start cleaning the channels that supply oil directly to the tool tire. Then inspect in detail the parts where the oil pump fittings are connected to the pipes. But if you notice that oil is leaking at the joints, or you find cracks in the tubes themselves, then in the first case, seal the leaks with sealant, and the tubes will have to be replaced.