Do-it-yourself mower repair

In detail: do-it-yourself calm mower repair from a real master for the site my.housecope.com.

Trimmer gearbox - malfunctions, causes and remedies

Trimmer reducer (petrol cutter gearbox, brushcutter gearbox) is a mechanical device located at the bottom of the trimmer (petrol cutters or brushcutters) and designed to transmit torque from the engine to the cutting equipment at an angle of 30 °, ensuring the operation of the cutting equipment in a horizontal plane (parallel to the ground surface) , as well as reducing the angular speed and increasing the torque of the output shaft in a ratio of 1: 1.40 (for example, if the engine operates at 12 thousand rpm, then the knife will rotate at a speed of 8.6 thousand rpm).

Malfunction - the trimmer gear is very hot.
The malfunction of the petrol cutter gearbox and the brushcutter gearbox is the same as that of the trimmer.
Causes malfunctions - lack of lubrication in the gearbox, unsuitable lubrication, or the new gearbox is not rolling (when the parts have not yet been worn down).
Repair do-it-yourself trimmer - add grease to the trimmer gearbox, change the grease or run the trimmer in a gentle mode (use up three fuel tanks under light loads and with periodic stops for free cooling).
Malfunction trimmer - knocking, backlash and jamming when the trimmer gearbox, brushcutter gearbox or petrolcutter gearbox rotates.
Causes malfunctions - destruction of one of the bearings in the trimmer gearbox due to lack of lubrication in the gearbox, inappropriate lubrication, severe operating conditions of the trimmer, damage to the anthers on the bearings during their installation.
Repair do-it-yourself trimmer - order the bearings from the dealer and replace them (there are two or three closed bearings) - for more details see below "How to disassemble the trimmer gearbox / petrol cutter gearbox / brushcutter gearbox".
Malfunction trimmer - the reducer wobbles or flies off the trimmer pipe.
Causes malfunctions - mechanical damage to the gearbox housing - for example, if a piece of the housing breaks off with a strong knife hit against heavy metal or stone (or if the gearbox housing is damaged, for example, with a hammer during repairs).
Repair trimmer with your own hands - replace the gear case. Or, if a small piece breaks off, make a metal clamp that tightens the break.
Do-it-yourself repair of petrol cutters is similar to repairing a trimmer.
Malfunction trimmer - the reducer is not clamped on the pipe. As practice shows, the gearbox does not fly off the pipe at all, but theoretically it can fly off the pipe along with the rotating knife.
The malfunction of the brushcutter is similar to the trimmer.
Causes trimmer malfunctions - wear of the gearbox seat on the pipe (the aluminum of the pipe under the gearbox is worn out).
Repair do-it-yourself trimmer - roll up the cloth tape on the pipe under the gearbox or replace the pipe.
Malfunction trimmer - the trimmer knife has completely stopped rotating (with a characteristic metallic sound) or stops rotating under high loads (with a hard gnawing sound).
Causes faults - wear of the teeth on the bevel gear in the trimmer gear.
Repair do-it-yourself trimmer - replace the pairs of bevel gears (the pair is replaced) in the gearbox - for more details, see below "How to disassemble the trimmer gearbox / petrol cutter gearbox / brushcutter gearbox".

Video (click to play).

In order to disassemble the trimmer gear, it is necessary.

Remove the gearbox from the pipe by loosening the two tie bolts under the gearbox.
Wash the gearbox with a brush, for example, in petrol without oil and dry it.
Using round nose pliers, bring the ends of the retaining ring together and remove it.
Remove the second circlip in the same way.
Then it is necessary to strongly heat the housing of the trimmer gearbox, brushcutter gearbox or petrol cutter gearbox with an industrial (technical) hairdryer at an outlet air temperature of 600 ° C.
Then, with strong blows of a wooden block on the upper part of the gearbox housing, knock out the driven shaft with the bearing and gear (first you should try to knock out the bearings without heating). You need to hit only with a wooden block, since a metal hammer, for example, can break the body.
In the same way, we remove the drive shaft with the bearing and the gear (we strongly heat the place where the bearings sit and by striking a wooden block on the housing coaxially with the shaft, knock out the shaft with two bearings and a gear). How to disassemble a trimmer reducer, a petrol cutter reducer and a brushcutter reducer. In order not to heat up, you can try using a camera.

When operating the benzotrimmer Calm sometimes the cutting head breaks, sometimes the cable breaks.

Repair of petrol cutters Stihl fs 38 flexible shaft repair.Assembling the trimmer gearbox is performed in the reverse order of disassembly (assembly after purchase and replacement of faulty spare parts). Assembling the gearbox is much easier than disassembling - everything is literally assembled with your fingers. Sometimes you need to lightly tap something, install the circlip and check if the driven shaft is turning by hand.If you decide replace the trimmer gear not original, then in a new gearbox you should pay attention to the diameter of the pipe for which the gearbox is intended (usually 25.4 mm or 26 mm), the diameter of the drive shaft (usually 8 mm), the size of the square of the drive shaft (usually 5 mm or a star on 9 teeth) and fastening the protection on the gearbox, as well as on the nut (with left-hand thread, usually M10x1.25).Read also: Note: Dear site managers, when copying this material, an active link to the source (to this article) is required!Don't buy champion trimmers full of Chinese shit, throw them in the trash, and the Chinese suck. That's fucking so good.I have a champion trimmer t 541 for 10 years. A year for 2 cows mows hay, plus (at home 1 hectare of land) weeds and weeds. I saw everything. Super. Perhaps they did better beforeand I use my trimmer to harvest firewood in the planting - it freely knocks down and then chops the trees!don't write nonsense
in 2011, the champion bought t336 for 5200r, 32.6 cubic meters, trouble-free equipment, for all the time he changed only the candle after 4 seasons for prevention, the old one was working. All summer at work, mowing huge volumes of grass, mowing everything, oats, potato tops. Fuel consumption is scanty, I lubricate the trimmer reducer with lithol. Against the background of the rest of China, even more, just a song. of course the piston has already begun to creep, on the trail. I plan to buy a more powerful champion for the season, as well as the best equipment for its price, I don't see any reason to overpay twice for calm

Champion T334 purchased in 2009. Kosh, of course, only with a fishing line, from a knife it vibrates too much. As they say, it starts with half a turn. After the winter, you fill in gasoline and oil, the damper, suck in the gasoline and ... go ahead. He laid weeds with a height of one and a half meters, of course, several times. And in 2016 I learned that it was necessary to lubricate the gearbox ... because the teeth were worn out :) New in Teply Stan - 1000 rubles. And back to work. So with my trimer, I was definitely lucky.I also have a champion t 226 fishing line herachit everything starts up almost immediately 2 seasons 10-12 refueling already the flight is normal) assembled soundlyIt's clear how to fix it, but where to buy a conical pair? Image - DIY mower repair

It is inherent in man to ennoble the place in which he spends the lion's share of his time. Residents of cities resort to the services of designers, or they themselves try to change something in their home, buy new furniture, wallpaper, so that, having come home after a hard day, they can mentally rest and relax in a favorable environment.

Residents of their own homes outside the city have completely different concerns and requirements. It is necessary to mow shrubs, grass, various dead wood in a timely manner, carefully monitor the state of the personal plot and garden.

It is clear that this requires a slightly different means of achieving comfort. And here a new brainchild of engineering comes to the fore - brushcutters from the Shtil company.

The history of this German brand dates back to 1926. At the initial stages of its development, the company was engaged in the production and sale of various components for washing and steam machines. It all started, like many companies, with a small production and narrow focus, which made it possible to focus on the quality of products.

At the beginning of the 30s, the first STIHL chainsaw was released, which was already distinguished by its convenience and functionality at that time. The company is developing at a fast pace, constantly introducing new tools, which gives it the opportunity to enter the international market. And already in 1931 the first regular deliveries of products to Russia were organized.

Calm device

To date, the company has expanded its activities in more than 160 countries around the world, opening new centers and production offices in Switzerland, China and many other countries. This is understandable, because the range of the company is impressive: motor-drills, gasoline sprayers, mowers, gasoline trimmers, chainsaws and much more. I would like to note that Shtil chainsaws are very popular due to their functionality and reasonable price.

The "Shtil" mower, which is distinguished by its versatility, reliability and ease of use, deserves a special mention. The company's specialists have developed many types of braids, with different characteristics and applications.

For example, the range of lawn mowers is designed for mowing grass in large areas... For this, a self-propelled wheel system was developed, with the help of which it became possible to take care of a large area without spending a lot of time and effort. A brushcutter is perfect for decorating shrubs, giving them a certain artistic image and texture. And if you need a lawn mower for tall grass and uneven areas, then follow this link and get full information on the selection of this type of technology.

If you need a more subtle approach to trimming grass, for example near flower beds or between trees, then the gasoline trimmer, designed for accuracy and precision, is perfect for this task. The company's specialists have foreseen all the nuances and possible difficulties when working with braids, so they equipped them with nylon strings that prevent mechanical damage to trees.

A special AutoCut trimmer head is also used to ensure the normal functionality of the petrol trimmer string knives. This article will tell you about the prices of petrol hand-held lawn mowers and trimmers, it will also help you make the right purchase, which you will not regret.

There are two types of these mowers: amateur and professional models, designed to solve problems of a certain complexity. The first category includes models FS 38, FS 45, FS 55, etc. The features and differences of these tools are in the motor power (from 0.9 to 1.2 HP depending on the configuration) and the volume of the tank (approximately 0, 34 l).

Trimmers Stihl FS 130 and FS 250 belong to professional trimmers. Let's consider the characteristics and properties on the example of several mowers, in particular FS 38, FS 70 and FS 130.

See the features of the device in the video.

The model is distinguished, first of all, by its simplicity and compactness, which is quite enough for proper maintenance of the local area. The main control keys are located on the handle of the device, which greatly facilitates and speeds up the work.The price for the Stihl FS 38 mower is about $ 130.

engine power - 0.9 hp;

engine displacement - 27.2 cm3;

tank volume - 0.33 l;

engine type - two-stroke;

the bar is straight;

handle - D-shaped;

complete set - 2-toothed grass trimmer blade, goggles for protection, belt;

weight - 4.1 kg.

Stihl FS 38

This model is one of the most popular on the market! You will learn about all the units that are included in the rating of the best gas mowers here.

She is more improved model, featuring higher power and multitasking... An anti-vibration system is provided to significantly reduce the impact of a running engine on the handle.

The new generation engine reduces fuel consumption. The cost of this model varies, but the average price is about $ 300.

engine power - 1.2 hp;
engine volume - 27.2 cm3;
tank volume - 0.34 l;
engine type - two-stroke;
the bar is straight;
handle - T-shaped;
complete set - belt, reel with fishing line;
line diameter - 2.4 mm;
weight - 5.4 kg.

Model FS 70

The model belongs to professional models, so the goals set for it will be slightly higher. It is designed for mowing rough grass, tough shrubs and young trees.

It is equipped with a state-of-the-art, high-power engine that does not emit a large amount of harmful emissions.

The price for the Stihl FS 130 mower is about $ 400.

engine power - 1.9 hp;
engine volume - 36.3 cm3;
tank volume - 0.53 l;
the bar is straight;
handle - T-shaped;
complete set - shoulder strap, two-bladed knife;
line diameter - 2.4 mm;
weight - 5.9 kg.

The range of prices for these models does not mean any difference in quality, first of all, each Stihl mower is designed for a certain type of work.

It is quite clear that there is no point in purchasing a more expensive and powerful model if you have a small plot or lawn in front of the house. Simpler models will do just fine with this task, but the word "simplicity" is not used here in a derogatory manner. More powerful mowers are designed to handle large areas with overgrown and dense surfaces, hence the price difference. If you are confused in such a variety of tools, then do not be upset, but feel free to click here and we will tell you how to choose a lawn mower for a summer residence.

Characteristics of the model in the video.

However, whichever model you choose, you need to follow certain operating rules recommended by the manufacturer in order to avoid possible breakdowns.It is necessary to take temporary breaks from work. This is necessary so that the engine of the device does not overheat and fail prematurely. For amateur models, there is a break every 20 minutes for the same time. For professional mowers, work should be interrupted every 50 minutes, in which case the downtime should be at least 10 minutes.It is necessary to monitor the condition of the fuel tank. If you do not plan to use the mower for a certain period of time, it is better to drain the remaining fuel from the tank compartment. This will help prevent damage to engine parts. Image - DIY mower repair

But what to do if suddenly it was not possible to avoid a breakdown of the mechanism? We will not understand the reasons for this, but it will not be superfluous to consider possible problems that may arise with the mower, as well as methods of eliminating them on our own.

The engine will not start. If you are faced with this problem, then initially you need to estimate the amount of fuel in the fuel tank, maybe there is no problem as such, but you just need to add fuel and continue working. By the way, special attention should be paid to the fuel used, because the service life and quality of the petrol cutter operation depend on its quality.Experts recommend AI-92 gasoline, not lower.

Robotic lawn mowers Stiga are an innovation in the agricultural industry that has won the hearts of many farmers and summer residents.

Homemade circular sawmill is easy and simple, thanks to the detailed instructions that you will find on this site.

Asked the question: "How to choose a professional saw without having experience with this tool?"

Another possible cause of unstable engine performance is a dirty fuel filter. You should carefully examine it, clean it, if necessary. If the filter cannot be repaired by yourself, then you should replace it with a new one.

Do not forget about the air filter, which clogging can also lead to the failure of the tool. In order to avoid this, the part is removed and washed in water with detergents, or in gasoline if there is no access to water supply.

Lawn mower Calm

Then the filter must be thoroughly rinsed and dried, carefully monitoring the integrity of the structure. Before installing the part in the mower, it is necessary to lubricate it with a small amount of oil. However, if you do not want to bother with cleaning the unit, then we suggest that you familiarize yourself with a lawn mower with a mulching function, because it will not only cut the lawn, but also prepare further fertilization.

The spark plug can also affect engine performance. It is necessary to unscrew it and check the condition, if necessary, replace it with a new one.

If, after all the manipulations done, the engine still does not start, then you can resort to the advice of experienced craftsmen who have used them in practice.

It is necessary to adjust the rpm with the carburetor screw. Place the mower in such a way that the fuel hits the bottom of the carburetor. To do this, place the tool so that there is an air filter on top.

Next, you need to remove it and pour some fuel into the carburetor, then installing all the parts in place. The engine should start.

You can pull the starter handle while closing the carburetor choke. Then open it and pull the starter a couple more times. This is a fairly versatile method, proven over the years.

These tips are not a panacea, but they are quite effective and useful.

The mower stalls immediately after starting. The main cause of this problem is incorrect carburetor adjustment. It is quite simple to determine this problem - strong vibration will be felt when the mower is operating. You can fix the problem yourself by looking at the instructions, which describe the problem in detail and how to fix it.

Particular attention should be paid to the fuel line, which is often the reason that the tool stalls. Check it regularly and remove any dirt.

Lawn mower characteristics

Various small parts such as the wire or the fuel pick-up hose can affect the stable performance of the tool. Therefore, you need to monitor their condition, check for cracks and small punctures.

Many may be scared off by the relatively high prices for the Shtil company, but if you think about it, what is more important - reliability and a good result or savings that are detrimental to quality? But, if you set out to save money, then we offer you the option of a lawn mower with your own hands, having assembled the device with your own efforts, you will know all the nuances and structure of the tool.

Of course, you can choose cheaper Chinese counterparts, but then no one will be able to vouch for the result of the final work and for the service life, which is very short for such models. So it is more profitable to purchase a mower once from a reputable company, which Stihl certainly is, and enjoy stable work for many years of operation.

How to repair a Stihl chainsaw with your own hands

With all the variety of modern building materials, the tree species remains very vital. Therefore, woodcutters, improvement workers, summer residents are interested in woodworking tools, including chainsaws.

The Stihl chainsaw is easy to operate, inexpensive in cost, reliable, and has a long service life.

Different people prefer different brands. Someone is interested in the Partner chainsaw, someone is interested in the Shtil brand device, someone else is interested in something else. Common microwave oven malfunctions and how to fix them. Electric. But they all break down periodically, while their breakdowns are both similar and different. Next, let's look at the repair of the Stihl chainsaw do it yourself.

This brand is well known both among professionals and among individuals involved in arranging their own living space. Great popularity chainsaw Calm causes the frequent practical use of this tool and makes us look for ways to effectively deal with its typical breakdowns.

Design chainsaw Calm.

Before you start disassembling a faulty mechanism, you should prepare the appropriate tools. Since a chainsaw is a technically relatively simple device, this list is small and includes:

Screwdriver Set;
spanners;
set of socket wrenches;
igloo.

In order to carry out a full-fledged high-quality restoration of the working condition of the chainsaw Calm do it yourself, you need to accurately establish the causes of the breakdown. Since the specified chainsaw refers to mechanisms driven by an internal combustion engine, the main malfunctions are associated with this unit.

The most common in the operation of the Stihl chainsaw are the following malfunctions:

lack of engine start;
unstable operation of the internal combustion engine immediately after starting, as a result of which, after a short time of operation, the power unit shuts down spontaneously;
the running engine does not reach full power;
oil leaks.

Chainsaw carburetor device Calm

One of the frequent breakdowns of the saw device is also an open circuit in the working chain. But it does not apply to problems that arise during the operation of the motor system. Usually, repairing a broken chain boils down to replacing it with a new one.

The search for the malfunction that led to the failure of the chainsaw is carried out in the following order. First of all, the level of gasoline in the tank is checked. If everything is in order with the level, you should proceed to inspect the starting device. If the trigger does not show any signs of breakage, you must pay attention to the spark plug.

If, as a result of a thorough inspection and checking the correctness of the gap, it is found that the spark plug is in good working order, then the carburetor may be the cause of the malfunctions that force the chainsaw to be repaired. This often happens due to the fact that this device is corny clogged.

However, if the old plug is replaced with a new one, the carburetor is completely cleaned, and the chainsaw still does not start up or, once it is working, it stalls quickly, then a faulty cylinder-piston group (CPG) may be to blame for everything. In order to qualitatively check the entire group, you will have to spend some time, almost completely disassembling the specified system. In this case, the technical condition of the cylinder, piston and piston rings is checked.

And now we will consider each malfunction in a little more detail.

As mentioned earlier, the examination of a faulty sawing tool must begin with establishing the presence of gasoline in the fuel tank, as well as with determining the technical condition of the breather.

Repair of petrol cutters do it yourself: parsing malfunctions and methods their independent eliminating Benzokos.

Chainsaw repair Calm at malfunctions fuel supply systems.

When checking the fuel level, it is imperative to open the gas tank cap. This must be done even if the owner of the tool has confidence that there is gas in the tank.

Often the saw cannot start due to the lack of fuel in the combustion chamber. The reason for this is most often the usual clogging of the breather - a special bypass valve, which serves to equalize the pressure in the tank with a gradual consumption of gasoline. If the gasoline trimmer they highlight malfunctions and how to fix them. In this case, the repair of the chainsaw comes down to careful cleaning of the breather with an ordinary sewing needle.

The cause of failure of the entire tool may be an inoperative trigger or problems in the ignition system. If it turns out that the starting device is operating normally, then you need to make sure that the spark plug is in good working order. In order to do this, the candle is turned out of the socket and carefully examined, paying attention to the presence of foreign plaque on its electrodes.

Chainsaw starter device.

It is worth noting that the presence of traces of a certain property in the place of spark formation speaks very eloquently about the sources of the "disease" of the entire launching system. Such a source, in particular, can be a carburetor. So, the complete absence of any signs of fuel on the plug (its complete dryness), most likely, indicates that the fuel does not pass into the combustion chamber due to the complete clogging of the carburetor.

If the gasoline is fixed on the chainsaw candle, and the cutting device itself does not work normally, then this indicates an excess of the air-fuel mixture. The reason for this condition, perhaps, is a malfunction in the carburetor adjustments, clogging of its nozzles, as well as improper start of the mechanism. In the case of a characteristic carbon deposit on the candle, one can speak with sufficient confidence about the improper functioning of the carburetor or about the use of low quality gasoline.

With all the above signs reflected on the spark plug, it is necessary to remove the carburetor and check its technical condition. If a blockage is found, the carburetor should be thoroughly cleaned, then the device should be adjusted according to the technological requirements and the gasoline used in the tank should be replaced. At the same time, you must always remember that the carburetor is a rather complex unit, consisting of many small components, parts and channels. Therefore, its repairs must be carried out with extreme care and accuracy.

In addition to restoring the carburetor, it is necessary to check the performance of the spark plug itself at the stand and, if necessary, set the correct gap in it. If you do not like the candle and its work at all, it is recommended to replace it with a new candle.

Sometimes the engine of the tool does not start or works with obvious interruptions and without reaching the rated and maximum power due to a malfunction of the cylinder-piston group. In this case, do-it-yourself chainsaw repairs are performed in this sequence.

4 bolts are loosened on the cylinder head, after which the cylinder is removed from the block. The piston is carefully checked for chips, scratches, scoring. Their presence is unacceptable and entails replacement of the piston. At the same time, there should not be the slightest mechanical damage on the cylinder itself. Petrol trimmer possible malfunctions and ways to eliminate them. It can either be repaired by boring the mirror to fit the piston oversize, or replaced with a new one assembled with a piston.

Of great importance for ensuring optimal pressure in the combustion chamber is the absence of signs of wear on the piston housing and piston rings. The normal functioning of the chainsaw engine largely depends on this.

It is possible to find out the degree of wear of the parts only after removing the piston group from the engine. The rings themselves should be tight enough and at the same time sit freely on the piston. The presence or absence of wear on the piston and rings can be verified experimentally.To do this, the piston inserted into the cylinder should be shaken slightly in different directions. Excessive piston free travel is most likely indicative of wear.

To eliminate this defect, either the cylinder is bored and the repair parts are installed, or the entire CPG set is changed. Otherwise, the chainsaw will not develop the required power.

Chainsaw repair is also required if there are problems with the lubrication system. Most often they consist in the absence of oil supply to the chain, as evidenced by the apparent dryness of the latter, or in oil leakage.

Lubricating fluid is either poorly or not at all supplied to the chain, usually due to clogged or completely clogged oil supply channels. To identify where the oil flow is blocked, it is necessary to carefully inspect the oil hose and its connection points. In addition, be sure to clean the oil filter.

If oil leaks, then this indicates a violation of the tightness of the oil channels or hose. As a rule, this is due to mechanical damage. Most often, the unusable hose is removed, and a new one is put in its place. But sometimes a less radical method is used, treating the damaged hose with an appropriate sealant.

Thus, the repair of the Shtil chainsaw, due to the relative simplicity of its design and the fundamental similarity of its power unit with many other internal combustion engines, can be carried out on its own. Lawn mower malfunctions and their elimination | page 3. Moreover, this can be done in ordinary home conditions, without resorting to the help of repair specialists.

The benzokos is one of the main tools of the summer resident, used to quickly put the land in order. Owners of private houses also purchase this tool for mowing grass in the backyard. The period of active use of petrol cutters and electric trimmers is in the summer. Before starting operation, the tool is brought into working condition: rubbing parts are lubricated, the cutting attachment is changed, a fuel mixture is poured into the tank. If the engine does not start at all or stalls quickly, without gaining a sufficient number of revolutions, then you have to look for the causes of the malfunctions and eliminate the identified malfunctions. To repair a petrol brush with your own hands, you need to understand its structure and the principle of operation of the main units. This information can be found in the instructions for use, which the manufacturer applies to the garden equipment without fail. Check for such a guide when purchasing your chainsaw. The imported tool must be accompanied by instructions written in Russian.

A long tubular rod is attached to the gearbox of a two-stroke internal combustion engine. A shaft passes inside the rod, which transfers torque from the gasoline engine to the cutting mechanism. The line or knives rotate at 10,000 to 13,000 rpm. There are holes in the protective housing of the gearbox, into which grease is injected with a syringe. For the convenience of using the tool, the manufacturer equips it with a special adjustable shoulder strap.

A cutting attachment is attached to the brushcutters:

The line, which varies in thickness from 1.6 to 3 mm, is located in the trimmer head. The line is subject to wear during mowing. Changing the line is quick and easy in two ways: by winding a line of the same diameter onto a bobbin or by installing a new spool with line already wound.
Steel knives with double-sided sharpening for the benzokos for clearing the area from weeds, small bushes, hard grass. Knives differ in shape and the number of cutting surfaces.

On the U-shaped, D-shaped or T-shaped handle, which is attached to the boom, there are the petrol cutter control levers. The cutting mechanism is protected by a special casing.Household brushcutters are filled with a mixture prepared from gasoline and oil, which is poured into the fuel tank. The device of semi-professional and domestic brushcutters, equipped with a four-time gasoline engine, is slightly different. The filling scheme is also different: oil is poured into the crankcase, and gasoline is poured into the tank.

The measured piece of fishing line is folded so that one end is 15 cm longer than the second.We put the loop into the slot on the spool and start winding in the direction indicated by the arrow

If you cannot start the petrol cutter, then the first step is to check the presence of fuel in the tank and its quality. For refueling the tool, it is recommended to use high-quality gasoline purchased at gas stations, the grade of which should not be lower than AI-92. Saving on cheap fuel can lead to a breakdown of the cylinder-piston group, the repair of which can take a third of the cost of the brushcutter itself. It is equally important and correct to prepare the fuel mixture from gasoline and oil. The proportional ratio of these components of the mixture is indicated by the manufacturer in the manual. It is not necessary to prepare the fuel mixture in large volumes, since its properties are lost during long-term storage. Better to use a freshly prepared mixture.

When preparing the fuel mixture, pour oil into gasoline using a medical syringe, which allows you to accurately observe the required proportion of components

A dirty fuel filter in the tank can also prevent the brushcutter from operating. Therefore, if problems arise with starting the motor, check the condition of the filter. Replace the filter if necessary. Do not leave the inlet pipe without a fuel filter.

The air filter also needs to be checked. When contaminated, the part is removed, washed in gasoline in the field and put in place. In the country or at home, the filter can be washed in water using detergents. After that, the filter is rinsed, wrung out and dried. The dried filter is moistened with a small amount of oil used to prepare the fuel mixture. Excess oil is removed by squeezing the filter with your hands. Then the part is installed in place. The removed cover is put back and secured with screws.

The air filter, washed in a fuel mixture, wrung out and dried, is installed in place in a plastic case and closed with a lid.

You can see how this procedure is done in more detail in the video:

If all of the above procedures are carried out, and the engine does not start, then adjust its idle speed by tightening the carburetor screw. In the video posted at the beginning of the article, attention is paid to this issue.

Place the tool on its side with the air filter at the top. This arrangement of the chainsaw ensures that the fuel mixture hits the bottom of the carburetor. The engine will start on the first attempt if you remove the air filter and pour a few drops of the mixture into the carburetor before starting, then reinstall the dismantled parts. The method has been tested in practice.
If the first tip doesn't work, then the problem is most likely in the spark plug. In this case, unscrew the plug and check its functionality, and also dry the combustion chamber. Replace the candle that does not show signs of life with a new one.
If the spark plug is in good working order, the filters are clean and the fuel mixture is fresh, then you can use the universal method of starting the engine. Close the carburetor choke and pull the starter handle once. Then open the choke and pull the starter 2-3 more times. Repeat the procedure three to five times. The engine will definitely start.

Some pull the handle with such force that they have to repair the starter of the petrol cutter with their own hands. This is only possible if the cable breaks or the cable handle breaks.In other cases, it is recommended to replace the starter. This unit is sold assembled.

Stop the engine and wait for it to cool down.
Disconnect the high voltage wire from the spark plug.
Unscrew the part using a special wrench.
Inspect the spark plug for replacement. The part changes if it is faulty, heavily soiled, has a crack on the case.
Check the electrode gap. Its size should be 0.6 mm.
Tighten the new spark plug inserted into the engine with a wrench.
Install the high-voltage wire to the center electrode of the spark plug.

As you can see, there is nothing super complicated in this procedure.

A new spark plug for a two-stroke internal combustion engine of a gasoline streamer is installed to replace the old part that is out of order

After starting, the engine may stall if the carburetor is incorrectly tuned or misaligned. What are the signs that you can understand that the reason really lies in this? It is very simple, by the vibrations that will be clearly felt when the mower is running. You can adjust the fuel supply with your own hands by following everything that is written in the operating instructions for the tool.

The engine may stall due to a clogged fuel valve. The cause is eliminated by cleaning it. If the brushcutter starts up and then suddenly stalls, it means that the fuel supply to the carburetor is difficult. Loosen the carburetor valves to ensure that the correct amount of fuel can flow to it.

Excessive air intake can also stall the engine. Increase engine revs to allow air bubbles to escape faster from the unit's fuel system. Also, be sure to check the integrity of the fuel intake hose. If you find mechanical damage (cracks, punctures, etc.), replace the part.

During the period of operation of petrol cutters, monitor the condition of the engine cooling system. The channels in the starter housing and the cylinder fins must always be clean. If you ignore this requirement and continue to operate the brushcutter, you can damage the engine due to overheating.

Competent care of the gasoline scythe during operation allows you to use it for several seasons in a row without major repairs

Allow engine to cool before cleaning. Take a soft bristled brush and clean the outside of the dirt. Cleaning of plastic parts is carried out with solvents, including kerosene, or special detergents.

At the end of the summer season, the brushcutter must be prepared for long-term storage. For this, the fuel mixture is drained from the tank. The engine is then started to use up fuel residues in the carburetor. The entire tool is well cleaned of contamination and goes to "hibernation".

Video (click to play).

As you can see, it is possible to repair the faults of a household petrol cutter on your own. It is worth contacting service departments in case of serious breakdowns. In this case, the cost of repairs should be correlated with the price of a new petrol cutter. It may be more appropriate to buy a new instrument.

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