Possible malfunctions
If the saw does not start, the first thing to check is the spark plug that ignites the fuel in the cylinder. Start by removing the high voltage wire that the candle is connected to. Then unscrew the spark plug itself from the cylinder cover and inspect its condition. When working properly, the candle should be dry and small deposits on the light-colored ceramics:
- If the plug is wet, there is a problem with the carburetor. It is necessary to adjust and set the fuel level in it;
- Carbon deposits on the walls of the plug are dark or black in color, it means malfunctions in the piston group.
If you did not find any visible reasons for the malfunction here, the candle is dry, light carbon deposits continue to go from the opposite direction. Since this is the final point of ignition of the working mixture. Now check if the spark is coming to the spark plug. This is the ignition system block.
Checking if there is a spark will not pose any special problems, for this it is enough to take the high-voltage cable to which the candle is connected, bring it to the cylinder block, setting a small gap between them, so that you can notice the spark slipping between them. Then we pull the starter starter cord and see if there is a spark and what color it is. A working spark plug should give a spark similar to lightning. How it looks, look at the photo offered to your attention, everything is clearly visible on it.
If no spark is observed, check with a control lamp, if there is no probe, high-voltage cable. A break is possible in the place where it was bent most often. If the wire is in order, it is possible that the problem is an incorrect ignition angle. It may be too early or too late in both cases, the chainsaw starts well and will not work.
Now let’s try to set the correct gap between the movable and fixed contact. Ideally, it should be 0.2 mm. You can check with a probe, since it is not a deficit.
This was a description of the malfunctions of the older generation of chainsaws. The new generation includes modern chainsaws from Goodluck, Stihl and Husqvarna.
Constructive components
All engines, whether automotive or other tools using an internal combustion engine, have similar operating principles.
There are no exception such famous chainsaws and are gladly used by consumers like Goodluck, Stihl or Husqvarna.
The drive in them is the familiar internal combustion engine, respectively, a fuel tank, an engine and a working body that directly performs work, as well as other attachments that help in control.
Sometimes during operation, some problems may arise, in this rather reliable tool like a chainsaw.
Ignition
The main problem in this group is the engine.
Ignition is one of the main elements affecting the trouble-free operation of the tool. Therefore, we will first consider this particular block.
Gone are the days when a cam-moving contact breaker was in control of the ignition, which supplied a spark to the spark plug.
It was not a very reliable system due to the many elements that affected the operation of the engine. The chainsaw, with no visible malfunctions, could simply stop starting. And we could observe a picture of constant tugging at the winding cord. To date, manufacturers have switched to contactless ignition systems.
They have fewer moving parts and no contacts that need to be exposed periodically, often failing. The reel used on a modern chainsaw will work until the end of the service life of your tool. The chainsaw has become much more reliable and easier to maintain.
The question arises, what to do then?
Here are some common cases:
- The chainsaw will not start;
- If it starts, it works intermittently;
- Not enough power to work properly.
How to set the ignition on a chainsaw
In this review presented to your attention, we will try to reveal the question that arises among many owners of chainsaws. In the process of using such a tool, the consumer may encounter a situation in which it is necessary to correct the ignition timing. Over time, the breaker may fail, the coil also does not last forever, although it serves much more and it is quite difficult to disable it. So let’s figure out how to set the ignition on a chainsaw.
Modern systems
Modern systems are equipped with chips that handle all of the above problems. A method of self-setting the ignition timing depending on the engine speed and the power transmitted to the cutting element. This significantly saves fuel without sacrificing power. It is also much easier to start the saw, regardless of weather conditions.
Tool Time. Stihl Coil Setting Tools
The chainsaw itself has become simpler and more efficient and does not require expensive repairs. Ignition coils made using modern technologies and using new materials have literally become eternal.
In addition to everything read here, a video is offered for a complete acquaintance with the material given.
2 comments on the entry “How to set the ignition on a chainsaw”
I bought a Stihl chainsaw, it practically did not work for her. just repairing. Can’t get.
Modern systems
Modern systems are equipped with chips that handle all of the above problems. A method for self-tuning the ignition timing, depending on the engine speed and the power transmitted to the cutting element. At the same time, fuel is not significantly saved due to electricity. In addition, it is much easier to start the saw, regardless of the weather conditions.
The chainsaw itself has become simpler and more efficient and does not require expensive repairs. Ignition coils made with modern technology and new materials are literally timeless.
In addition to everything that is read here, a video is provided for a complete introduction to the material.
2 comments on the entry “How to put the ignition on a chainsaw”
I bought a Stihl chainsaw, it almost didn’t work. only I am repairing. Does not work.
Assembly Stihl MS180
Stihl, Briggs Stratton. pavel@mechanic.kiev.ua
They have fewer moving parts and no contacts that need to be exposed periodically, often failing. The reel used on a modern chainsaw will work until the end of the service life of your tool. The chainsaw has become much more reliable and easier to maintain.
If such actions were unsuccessful, pay attention to the fuel supply air filter and the functioning of the spark plug. If, in your opinion, the problem was caused by a malfunction of the carburetor, then the chainsaw purchased with a guarantee should be returned to the service immediately. This is due to the fact that it is quite difficult to disassemble it yourself.
Carburetor problems
A feature of the Stihl chainsaw carburetor is the presence of 1 screw, which is responsible for adjusting the idle speed. During the operation of the equipment, it is always necessary to pay attention to the idle speed. A few simple steps will help to adjust this: checking the air filter, as well as the spark protection grille.
It is worth noting that repairing a Stihl chainsaw carburetor is considered a laborious process. The article discusses in detail the adjustment of the spark plug for the Stihl 180 chainsaw. If for some reason it stopped starting, you must do the following:
- open the gas tank cap and then close it;
- remove and dry the candle;
- ventilate the combustion chamber.
How To Replace the Ignition Coil
Removing the flywheel
The flywheel of the Stihl 180 chainsaw is twisted with great effort, so a head with a metal knob is required to remove it. The nut holding the flywheel is unscrewed by the head by 13.
To block the crankshaft from turning, you need to unscrew the spark plug and install the piston stopper through the spark plug hole, if it is not there, you can use the old cord from the starter, with knots tied to it and immersed in the cylinder through the spark plug hole.
It is strictly forbidden to keep the flywheel from turning by installing a power screwdriver and other tools between its ribs and the body of a power screwdriver, with this method of blocking from turning, the flywheel blades are not able to withstand the load and break off.
After the piston is locked in the cylinder, you can unscrew the flywheel nut. The thread in the nut is ordinary, so you need to turn it to the left. Having loosened the nut, it is not necessary to remove it to the end, it is enough to unscrew it until its upper edge is equal to the tip of the shaft, after which a soft metal drift is installed on the nut and a sharp blow is made on it. Thus, the flywheel from a sharp impact jumps off the shaft and can be easily removed without the help of additional tools.
Installation of ignition Stihl ms180
How to adjust the carburetor Stihl ms 180 what are the min and max rpm? And also a similar video about the adjustment on my.
Structural components
All engines, whether it be a car or other tool with an internal combustion engine, work in a similar way.
There are no exception such outstanding chainsaws and are gladly used by consumers such as Goodluck, Calm or Husqvarna.
Drive in them. these are all the familiar internal combustion engine, respectively, the fuel tank, the engine and the working body that performs the work itself, as well as other hinge bodies that help in control.
Sometimes, during operation, some problems may arise in this rather reliable tool, such as a chainsaw.
How to set the ignition on a chainsaw?
Quite often, owners of chainsaws are faced with a problem in which the engine of the tool does not start. One of the main reasons for this breakdown is a malfunction of the ignition system, namely, a failure of the factory settings of the unit.
First of all, the owner of the saw will need to unscrew the protective rubber cap and check the spark plug under it. It is possible that it is flooded with oil, which prevents the flow of current to the candle. In such cases, the problem lies not in the ignition system, but in the fuel system, namely, in the depressurization of the channels.
However, if the spark plug is completely dry, then it may be necessary to install the ignition on the chainsaw. To do this, unscrew the candle and dismantle the protective cover. After that, it is necessary to measure the gap between the flywheel and the ignition coil. The instructions for each of the chainsaw models indicate the optimal clearance between these elements. In most cases, it is between 0.2 and 0.4 mm. Since the handwheel of the tool has a round shape, it will not be possible to use an automotive dipstick to adjust the gap. It is best to use a special template in the form of a spacer for this purpose. However, finding it is not easy. Therefore, many experts advise using a cut out strip from a plastic bottle as a template.
Chainsaw ignition adjustment is quite simple;
- First, loosen the bolts securing the elements of the ignition system;
- Place the plastic bottle plate between the spool and the flywheel;
- Tighten the bolts all the way.
Chainsaw ignition system. device, check and adjustment
The ignition system of a chainsaw is a series of parts that generate a spark when the tool is started. In most cases, the ignition system is a fairly reliable unit, but sometimes, for various reasons, some of its parts fail. Let’s study the features of repair and adjustment of the main elements of the chainsaw ignition system.
The device and principle of operation of the chainsaw ignition system
The ignition system of modern chainsaws consists of a list of important parts. The main structural elements are:
- Spark plug;
- Flywheel magneto;
- Wiring;
- Power button.
The ignition system also includes an ignition coil, an interrupter and a capacitor. The coil is responsible for turning on the core and winding the transformer. Candles in the construction of nodes consist of side and center electrodes, an outer casing and an insulator.
The breaker and coil winding in the structure are connected in series. The breaker is turned off due to the presence of a cam on the crankshaft of the chainsaw. The magneto of the ignition system is located to the left of the crankcase and is secured with a nut and two studs.
In the process of starting the chainsaw, a magnetic field is generated with the help of the flywheel magnets, which crosses the coil. Provided that the contacts of the primary winding are in the closed state, a weak current is generated in the ignition system. If the contacts are in the open state, then the magnetic field is not formed, which leads to the appearance of a high voltage in the secondary winding. Subsequently, the current is supplied to the candle, which ignites the fuel to start the chainsaw.
How to check the ignition coil of a chainsaw with a multimeter?
A special device. a multimeter. will help to accurately determine the breakdown of the chainsaw ignition system. It will make it possible to determine if there are breakdowns in the coil and other elements of the assembly. The procedure is as follows:
- To begin with, you need to set the multimeter so that the arrow of the device is located at the 200 ohm mark;
- After that, you need to open the instruction manual for the chainsaw and study the optimal resistance indicated there for the primary winding of the ignition coil. As a rule, this indicator ranges from 3 to 5 ohms;
- Next, you need to connect the primary ignition coil to the device. If the indicators of this part of the coil are normal, we begin to check its secondary winding;
- We study the operating instructions again, and look at the optimal resistance indicators indicated for the secondary winding. It is worth noting that this part of the element has large indicators, so the multimeter should be adjusted so that its arrow is located next to the 20K indicator;
- Next, we connect the device to the hole in the coil, into which the wires are inserted. If the multimeter shows normal readings, then the coil is fully functional. However, if the resistance on the device display is far from the parameters specified by the manufacturer, then the coil will have to be changed.
Modern systems
Modern systems are equipped with chips that handle all of the above problems. A method of self-setting the ignition timing depending on the engine speed and the power transmitted to the cutting element. This significantly saves fuel without sacrificing power. It is also much easier to start the saw, regardless of weather conditions.
In addition to everything read here, a video is offered for a complete acquaintance with the material given.
- the engine will not start;
- starts, but stalls;
- works unstable;
- does not develop power, i.e. works normally at idle, but stalls under load.
When repairing a chainsaw with your own hands, it is necessary to act in an exclusionary way. to inspect alternately all the probable prerequisites for a malfunction, starting with those whose verification and elimination takes the least time (about the device and operation of a two-stroke engine, see here).
Ignition system. Almost all of the engine problems listed above can be caused by a malfunctioning ignition system. Therefore, when they occur, it makes sense to start troubleshooting with a candle. This is all the more justified since the state of the latter can provide useful information about the operation of the fuel system. So, if a problem occurs, you need to unscrew the candle and inspect it.
The wire is disconnected and the candle is unscrewed with a special key.
If the spark plug is dry, this means that the problem is most likely not in the ignition system, but in the fuel mixture entering the cylinder. You can wrap the spark plug back and start the fuel system. If the spark plug is heavily splashed with a fuel mixture, then there is an excess of it. This may occur from misalignment of the carburetor or violation of the starting rules.
The presence of a large amount of black carbon also indicates a malfunction in the fuel system.
The ratio between oil and gasoline in the mixture may be disturbed, the carburetor is not adjusted or poor-quality oil is used. The candle is washed in gasoline, cleaned with a needle or an awl from carbon deposits, the electrodes are cleaned with a fine sandpaper and installed in place.
In all these cases, it will not be superfluous to check the gap between the spark plug electrodes. Depending on its brand, it should be in the range of 0.5-0.65 mm. It is also necessary to check the spark plug gasket. If it is worn out or damaged, the tightness of the combustion chamber may not be ensured, which leads to a decrease in compression in the cylinder and problems in engine operation.
Even if, when checking the spark plug, there is good reason to believe that the problem is in the fuel system, you need to check the spark plug for the presence of a spark. If only to be sure that everything is in order with it. For this:
- put the ignition cable on the spark plug;
- using pliers with insulated handles, apply the thread or nut of the candle to the cylinder;
- pull the starter handle and see if there is a spark or not.
If there is no spark, you just need to replace the spark plug. If the new spark plug does not have a spark either, you need to check the condition of the high-voltage wire for an open circuit and contact with the spark plug.
Chainsaw ignition system. its design and adjustment
Engine malfunctions
Most often, we think about repairs after the chainsaw has stopped starting, or there are visual signs of serious damage.
If the saw does not start, the first thing to check is the spark plug that ignites the fuel in the cylinder. Start by removing the high voltage wire that the candle is connected to. Then unscrew the spark plug itself from the cylinder cover and inspect its condition. When working properly, the candle should be dry and small deposits on the light-colored ceramics:
- If the plug is wet, there is a problem with the carburetor. It is necessary to adjust and set the fuel level in it;
- Carbon deposits on the walls of the plug are dark or black in color, it means malfunctions in the piston group.
If you did not find any visible reasons for the malfunction here, the candle is dry, light carbon deposits continue to go from the opposite direction. Since this is the final point of ignition of the working mixture. Now check if the spark is coming to the spark plug. This is the ignition system block.
Checking if there is a spark will not pose any special problems, for this it is enough to take the high-voltage cable to which the candle is connected, bring it to the cylinder block, setting a small gap between them, so that you can notice the spark slipping between them. Then we pull the starter starter cord, and watch, there is a spark and what color it is.
Now let’s try to set the correct gap between the movable and fixed contact. Ideally, it should be 0.2 mm. You can check with a probe, since it is not a deficit.
This was a description of the malfunctions of the older generation of chainsaws. The new generation includes modern chainsaws from Goodluck, Stihl and Husqvarna.
Installation of ignition Stihl ms180
Today we will touch on an important topic. How to set the ignition? Wedeo ignition installation.
Selection by model
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- Spare parts for Chinese chainsaws 25 cc
- Spare parts for Chinese Stihl 660
- Spare parts for Partner 350, 351, 352, 371
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- Spare parts for Husqvarna 137, 142
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- Trimmers
- Spare parts for Chinese trimmer 33, 43, 52 cc
- Spare parts for Chinese trimmer 26 cc
- Spare parts for Husqvarna 125, 128
- Spare parts for Favorit T283, T284
Chainsaw does not start or does not start well. Reason and how to fix.
Why the chainsaw won’t start, the reason, how to fix it.
The video talks about the ease of adjusting the magneto gap using the wall of a plastic bottle. Repairs.
Why the chainsaw won’t start, the reason, how to fix it.
- Dismantle the spark plug and inspect it. A dry candle with a slight brown tint of the electrodes can be considered serviceable.
Muffler. Often, the cause of engine malfunction, especially in the case when the engine normally operates at low speeds and stalls under load, is clogging of the muffler’s spark arrester with combustion products, which prevents normal exhaust. Repair in this case consists in removing the muffler, disassembling (if it is collapsible) and wet cleaning it from carbon deposits using detergents.