STIHL ms 180 won’t start

STIHL STIHL 180 chain saw will not start

Often owners of garden tools are faced with the problem that the STIHL 180 chain saw does not start. Check and see if the oil used to lubricate the chain is leaking and is flooding the spark plug. The problem can be eliminated on your own, the main thing is to understand the device of the tool and follow the repair instructions precisely. There is probably a gap in the hose connection between the oil pump and the tank which can be fixed simply by sealing the connection.

STIHL STIHL chain saw 180 WILL NOT START, Causes and Solutions.

If the STIHL 180 will not start, you may want to dry the spark plug. To do this, unscrew the spark plug and leave it in the open air for a while. Or open and close the gas tank cap to remove any air lock. If there is no serious problem, this is a good way to start the engine.

If the saw starts but immediately stops, the carburetor is malfunctioning. Clean it and bring it back to normal operating parameters.


stihl, start

If STIHL 180 chain saw fails to start but has a spark, spark plug is working and air filter is clean, the breather plug is probably badly contaminated. A clog of dirt is forming and is blocking air flow. No fuel coming out of the engine. Clean the breather plug with a standard needle. To. To gain access to the breather plug, disconnect the fuel hose and clean and inspect it as well.

If the STIHL chain saw ms 180 does not start when it is hot, i.e. after extended use, the muffler needs to be cleaned. If there is a lot of waste material which has accumulated during operation and is increasing in volume as it heats up. Always check the oil level in the tank and the oil pump.

Lack of chain lubrication can be another reason for a difficult engine start. check oil in the tank and the oil pump.

STIHL chain saw fails to start if there is a more serious fault. Cylinder malfunctions for example. If on examination the part has visible defects, then the cause is in it.

STIHL STIHL 180 chain saw does not start? The service center of RemTechService will quickly find the reason of a failure and eliminate it effectively.

General information

The performance of this saw is source of pride for the German manufacturer. The unit is a tool that is designed to do a small amount of work. The tool is positioned for domestic use, which confirms the intensity of its operation, which should not exceed 20 hours per month. With such a unit in your possession it will not be a problem to keep order in your garden, make firewood for the winter, as well as clearance of areas. At the same time, it can help you with other tasks that do not require complex manipulation.

Main features

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 two-stroke engine helps the device to perform its working functions, and its power is sufficient for solving simple problems. In addition, this tool does not produce much noise during operation, which does not exceed 98 dB. For the sake of simplicity, it is enough to say that a human speech generates noise at the level of 76 dB.

  • The STIHL 180 chain saw has a power output of 2.6 watts. This is in principle sufficient, bearing in mind that we are talking about a tool for household use.
  • The oil tank has a capacity of 0.145 liters and the fuel tank has a capacity of 0.25 liters.
  • The bar is 350 mm wide and has a pitch of 0.325 inches.

Winding device

Like in the other machines, the carburetor is the engine that starts the saw. Taking a closer look at the carburetor that the STIHL 180 chain saw is equipped with, it should be noted that it has a single tuning screw. In other words, it is a sort of idle speed adjustment screw. The nozzle that is completely loaded is stationary all the time.

In other words, it is not adjustable. In turn, there is no way to influence the full load. Attention should also be paid to the factory settings, which cause the air/fuel mixture to be fed directly to the engine. And this principle remains the same regardless of the operating conditions of the instrument.

Your chainsaw won’t start. Why? Causes and avoidance.

Your chain saw does not start? It often happens at the most inappropriate moment when you need to work urgently. You should agree that it is unpleasant. It is necessary to admit that chainsaws from famous manufacturers (STIHL, Husqvarna, Echo, Solo, etc.) do not start much less often than those from Chinese producers. Today let’s discuss the causes of this unpleasant event and how to avoid it. If you can’t find your cause among those listed, you can ask a question in the discussions.

First of all, let’s determine if your chain saw is new, or if it has been in use for a long time. This is necessary so that corrective action can be taken.

If you have a new chain saw that won’t start, then:

  • In case 14 days have not passed since the purchase, you can return or exchange the purchased chainsaw. This is the most sensible way out of all. (If you buy a chain saw, always ask the salesman to start it). This does not apply to online stores, because serious IMs always check the goods before sending them to the buyer.)
  • If you can’t exchange your chainsaw for a new one for objective reasons, or if it has been more than a couple of weeks since you purchased it, then the reasons are probably quite serious. To be sure your chainsaw will not start for technical reasons and not due to oversight, read the manual carefully.
  • Here are some good reasons to know why your chainsaw won’t start, and some of the reasons it is just as good for a new chain saw as it is for a second-hand one.
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Here’s why your chain saw won’t start in this checklist.

  • Check the fuel in the tank and its quality. It is quite logical that the chain saw won’t start without fuel. So if there is no fuel, you need to fill it up. If fuel is left in the tank for a long time (more than 3 weeks), then dump it and refill with new fuel. Lack of oxygen and leaking fuel rapidly loses its octane rating and becomes unsuitable for the chainsaw. Read more about fuel here: How to dilute gasoline for a chainsaw? Selection of oil, mix ratio
  • Check the spark plug on the chain saw. First for whether or not it’s primed. If it is wet wipe it off, blow it out and put it back on. Secondly check if there is a spark. It is possible to check it having unscrewed it and having put on a tip, to put on the cylinder block and to pull a cord of the starter. If there is a spark, then we go on with the reasons. Third, look at the condition of the spark plug. Read more about how to diagnose a chainsaw’s performance by the condition of the spark plug here: diagnosis of chainsaw engine by the condition of the spark plug.
  • Check the air and fuel filter. Badly clogged filters can choke the chain saw. The air filter is located just under the cover on top of the chainsaw. The fuel cell is in the tank. Also check the breather plug which is also in the gas tank. For diagnosis it is best to remove them and try to start it without them.
  • It is necessary to examine the muffler for the presence of soot in it. Read more about cleaning your muffler here: Cleaning Your Chainsaw Muffler.
  • Inspect all hoses and connections. A loose or cracked hose is often the cause of a chainsaw not starting. You also need to check the crankshaft oil seals.
  • Clean carburetor. To disassemble your chainsaw’s carburetor it’s best to do it on a bare table, with a clean cloth. All spare parts should be separated to make it easier to assemble. Clean the carburetor with special products for cleaning jets and injectors, for example.
  • Check the ignition system. 1 The angle could be off, the flywheel could turn.
  • If the previous steps didn’t help and the chain saw is still not running, you may need to adjust the carburetor. Any chainsaw has a carburetor adjustment similar to the one in the link above. The only exception is STIHL chain saws, which have only one idle speed adjustment screw.
  • The worst thing you can do if none of the above measures help. You may need to replace the cylinder block (piston/cylinder group). There are three ways to check this: 1.If the piston does not move in the cylinder, it is definitely better to replace the cylinder head. You could certainly install a new piston or bore the cylinder, but it would not work as well as when a new cylinder block is installed. 2.Take the chain saw apart and carry out a visual inspection. 3.Remove the muffler and look at the visible part.

You can help rank chain saws by voting in the poll: Ranking of chain saws

STIHL STIHL-180 chain saw does not start: Recommended Reasons

Today, the production of machines for agricultural and construction work is engaged in a variety of manufacturers, among which the most popular is the equipment made by STIHL. Top quality is not the only reason why STIHL chainsaws are so popular on the market. This is also due to the affordable price and optimum power of the models of this brand.

I think many people have used a chainsaw of this brand. And not just to use, but regularly perform a variety of works and make sure of the high performance of this tool. Such a widespread use of these products is no accident, considering that in addition to power, this tool stands out with its graceful design. However, you need to remember that this is still a technique with a limited service life. Therefore, every owner of such a unit at some point faces the need for repair. The following section deals with the special features of the STIHL 180 chain saw.

winding device

The basis of the plant of this type of model, as well as all other chain saws is a carburetor. But since we are talking about the STIHL 180 chainsaw today, we don’t want to stray too far from the topic. So. The carburetor on this model has a single adjusting screw. that is, this is a kind of idle stroke adjustment screw. While the jug of a fully loaded carburettor is in the stationary state.

In simple words, we can say that it simply can not be adjusted (see. here ), while the adjustment of full-load simply can not be changed. The carburetor was set up at the factory in such a way that regardless of the actual conditions of direct exploitation of the chainsaw the air-fuel mixture is supplied to the engine itself.

Why STIHL chain saw fails to start

For a preliminary diagnosis, check the gas pump, spark plug appearance, fuel flow, carburetor function and filter. Attention is paid to the functionality of the cylinders, pistons, muffler, crankshaft bearings. After preventive measures try to start the chainsaw. Insufficient lubrication of rubbing parts is also a factor in poor performance.

Here are the most important startup problems that can occur with a STIHL chain saw (no spark, stalling or no pickup) and what to do about them.

Lack of spark

Checking spark plug ignition. The function of the element is influenced by various factors. When testing the mechanism, the causes are identified:

Soiling builds up on the spark plug contacts because of these conditions. Subsequent corrosion of the conductors becomes the reason that there is no spark in half the cases of malfunctions. This happens because the gap between the module contacts changes. To check the spark, do the following:

Stihl Chainsaw Won’t Start. The Reason Why Surprised Me

  • the tip of the high-voltage cable is removed;
  • the spark plug is unscrewed;
  • the tip is put back in place;
  • the spark plug is leaning against the cylinder with its wide end;
  • crank the starter.
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If a bright spark resembling lightning appears between the electrodes when starting, then the ignition unit is serviceable. If there is no flash, the entire element is cleaned and the gap between the conductors is adjusted. Sometimes there is no gap between the flywheel and the ignition coil. When the flywheel rubs, scratches are visible on the outside of the flywheel.

Faulty ignition coil

The module or coil is not disassembled, its suitability is difficult to determine without testing devices. Modern ignition systems are sturdy, lightweight and small in size. They are characterized by almost failsafe operation. Problems with chainsaw malfunction due to the ignition coil can be fixed on your own.

Test the lead wire for damage (i.e., if no cracks are found in the lead wire). ч. internal), which are caused by vibration, resulting in friction. If no cracks are found, then the ignition coil needs to be replaced. Sometimes a weak, faintly discernible flash when the saw heats up is indicative of a module malfunction. This is caused by an increase in the temperature of the coil, which leads to an increase in the resistance of the transistor.

A peculiarity is that the spark can appear at the beginning of work, but after extended use it becomes dull and disappears. Modern ignition coils cannot be repaired in a home workshop and are therefore replaced with serviceable components.

Fuel supply

After unscrewing the spark plug, a wet deposit is found on the surface of the plug. This indicates too much gasoline in the combustion chamber. This is the reason why the tool does not work or cuts out, t. к. does not ignite fuel.

Another hindering factor is a clogged breather small hole in the gasoline tank lid. Use a needle to clean it otherwise the STIHL MS 180 chain saw will not start. To determine if the fuel supply is faulty, the following steps are performed in sequence:

  • Remove the spark plug;
  • Using a syringe, pour two cc’s of gasoline into the spark plug hole;
  • put the ignition device in place and put the cap on the high-voltage wire;
  • Move the lever to the hot-start position;
  • Pull the starter handle a few times.

If the instrument starts and immediately stalls, the fuel line is tested further. Check the gasoline filter, the splash from the engine crankcase, the integrity of the partition in the pump when unscrewing the cover.

Crankshaft bearing failure

If the bearings are defective, slight play can be felt. To check for faults, the STIHL MS 180 handwheel is swung from side to side. The movement indicates that the flywheel is shifted toward the electrodes by its own magnets, resulting in a lack of spark. To remove the mechanism remove the cutting element, remove the filter and clutch cover. To lock the crankshaft remove the manual starter cover and tighten the two bolts.

Unscrew the clutch with a wrench in a clockwise direction. Remove the drum with a sprocket, replace the old clutch and screw it all the way in. The crankshaft is blocked so as not to break the starter motor. Reassemble the mechanism in the reverse order. To tighten, the brake handle is tilted forward, the tool is started, then unbraked.

Rarely, defective bearings are detected (holes in the cage are too large). To determine, disassemble and measure with a micrometer. Broken bearings are evidenced by regular knocking. In such cases, urgent repairs are necessary, i.e. к. Failure to lock the crankshaft will damage the piston assembly and cylinder.

Fills the spark plug

In this case, the spark is unable to ignite the fuel, which flows in large quantities into the furnace to burn the combustion mixture. If it floods the spark plug, then the carburetor is defective or the cold engine starts incorrectly. Perform a purge of the engine, the procedure is performed with the ignition off and away from the open flame. To ensure that the fuel ignites at the moment of start-up, clean the mechanism:

  • unscrew the spark plug, wipe dry, dry for half an hour;
  • Remove a thick layer of soot with a file;
  • Adjust the gap between the contacts;
  • Turn the tool upside down and drain the gasoline;
  • jerk the starter a few times in this position (to remove fuel residue);
  • reassemble in the reverse order.

If the STIHL MS 180 chain saw does not start, the main reason is a loose spark between the electrodes on the spark plug. Signs of this malfunction can be detected by unscrewing the spark plug and inspecting. If on examination you find the spark plug wet, begin the search for the cause.

spark plug is defective

The first thing to do is to check the serviceability of the spark plug.

This is quite easy to do. The plug is inserted into the cap of the high-voltage wire and pressed to the engine cylinder, then the starter is moved several times, if no spark is observed between the electrodes of the plug, then it is faulty or the ignition module is defective.

Spark plug test is performed with ignition on.

To find out for sure that the problem is in the spark plug, it is necessary to check the spark plug in the same way. If the test results in a spark, then the problem is found and replace the saw’s spark plug with a new one to fix the problem.

stihl, start

Problems with the ignition coil

The ignition coil, also called the module, is not dismantled, so it is very difficult to determine its functionality without a special tool. If the spark did not appear on the working spark plug, we suspect that the coil is to blame. But do not immediately remove the old coil and run to the store, the problems may be of a slightly different nature.

There is no gap between the flywheel and the ignition module

In some cases the lack of spark on the spark plug is due to incorrect clearance between the ignition module contacts or the flywheel. It may be larger, or it may not be there at all, and then there will be scratches on the surface of the flywheel as a result of contact with the coil contacts.

It is possible to check and set the gap without using a tool. To do this you will need to remove the starter, loosen the two screws fixing the coil and put a plate, cut from a plastic bottle, between the contacts of the flywheel and the ignition module, tighten the screws fixing the module.

If after such clearance adjustment the spark appears, all is well, you can continue to work with the STIHL 180 chain saw, if not, you must re-inspect and check that the flywheel is not rubbing on the coil contacts again. Suppose as a result of checking found that after adjusting the gap, it is again no longer. So the reason is probably the crankshaft bearings.

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Defective crankshaft bearings

If there is a defect in the crankshaft bearings, there is little play on the crankshaft. Check for play by turning the STIHL 180 chain saw flywheel from side to side. If there is play, it means the flywheel is being pulled by its magnets to the ignition coil contacts, i.e. к. the backlash on the bearings allows it to do this and the spark is lost as a result.

Also with this defect, the STIHL MS 180 stops revving, it feels like it is floating or just not reaching its maximum performance level.

Crankshaft bearing replacement

Have the bearings on the crankshaft replaced by a STIHL servicing dealer. к. Replacing it involves completely dismantling the STIHL 180 chain saw and removing all major components.

Without some experience or at least the skills of repair of similar chainsaws to replace the crankshaft bearings qualitatively will not work.

So, with the lack of spark we have solved, but what to do if there is a spark, but the answer to the question of why the STIHL chain saw 180 does not start, no. The cause may lie in the fuel system.

Although the 180 model is the most popular, but in addition to it, there are a number of other interesting chain saws by STIHL, for example: MS 170, MS 210, MS 230, MS 250, MS 270, MS 280.

By the way, many buyers are wondering whether or not to take the 170 model, it is very similar to the 180, in more detail, read a comparative article, here.

A quick summary of the main points

This model is the pride of the German manufacturer and is a straightforward tool designed for a minor level of work. It can be used for no more than twenty hours a month. This beautiful device will help you deal with the care of your garden, prepare firewood for the winter (see., How to cut down a tree), clear areas and will become an indispensable assistant in other areas, say, simple manipulation.

We can say that this mini chainsaw model, as it has a small weight of 3.9 kg, it does not have a large tank weight, both oil and fuel. The manufacturer has equipped it with enough power for easy operation.

In addition, it is quite quiet, because during operation the noise level does not exceed 98 dB. To better understand the volume level, compare its noise to spoken speech, which is 76 dB.

Power output of this model is equal to 2.6 W. It’s worth noting that this is a pretty significant level of power, given that this is not a professional chainsaw. The oil tank has a capacity of only 0.145 liters, and the fuel tank. 0.25 liter. The tire size is 350 mm and the height is 0.325 in.

Troubleshooting the STIHL MC 260/261 chainsaw

STIHL 250 chain saw has been in the closet for about two years. Now it doesn’t start well. If it starts, it stalls if you press the gas pedal. Maybe the carburetor is finished. Adjustments don’t help.Drain the old gasoline and fill it up with new. Your carburetor diaphragms might be sagging. Also need to look at the carburetor pulse port. Try. if you have enough power, dismantle the carburetor and soak all diaphragms and metal parts in gasoline for a day. Blow out the impulse port and try replacing the spark plug.

Why won’t my chainsaw Start. stihl 180

Ex-Art-Kit thank you! I’ve been storing the saw all this time without draining the gasoline. Maybe the diaphragms are stuck? It’s not hard to disassemble the carburetor? So you don’t need to change the carburetor?

vik wrote : it is not difficult to disassemble the carburetor?

.There are usually 4 screws on the carb.Two on the diaphragm and two on the b/f filter gasket. Before you go into the carb, check the spark plug and air filter. You can tell from the look of the spark plug the condition of the carburettor.Try to see if the valve under the diaphragm is jammed or if the diaphragm has failed (no elasticity, no leakage)

vik wrote : it is not hard to disassemble the carburetor?

It’s not hard to disassemble. It is harder to put everything back in the right order. Be careful and keep track of how long the STIHL chainsaw has been in use. I don’t know what’s in the carburetor. Take notes just in case.

Here is a link to pictures with carb ” By the way, if you still do not decide to go to your Wald in St. Petersburg. Good Service. The address is on this site

I don’t know how to tell if the valve is stuck or the diaphragm is out of order from the candle.

Ex-Art-Kit Dry or wet plugs, these are of course indirect signs, but still

If the diaphragm is damaged.the spark plug is usually dry.к. does not create a vacuum to open the valve (but here we must consider the nagneganya gasoline hand pump) “Frozen” membrane is often the opposite much gasoline, which can even see through the air intake-cowl will be wet All this IMHO, but seemed to coincide so far

And what details to load? MS250 is not on the list, there are 210 and 270. Which one fits my carburetor?

STIHL-180 does not start: causes and remedies, why the chainsaw fills the spark plug, no gasoline in the cold

Today, the manufacturer STIHL is in a leading place among other companies that produce equipment designed for agricultural and construction work. The production of this manufacturer is known not only for its high quality level, but also for its optimal pricing policy and capacity of its models. It’s probably hard enough to meet a person who wouldn’t have had a chain saw of this brand.This is one of the world’s most famous companies. But the fact that out of ten possible six people definitely have them. No wonder. STIHL chain saws combine power with graceful design. But unfortunately, even such giants of equipment sometimes break down and need some kind of repair. Let’s talk about the reasons why the STIHL chain saw does not start.

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