How to diagnose a lawn mower at home. Gasoline trimmer - repair and maintenance. Replacing the ignition coil

Trimmer repairs should be carried out as soon as possible when the first signs of breakdown appear, so that minor malfunctions do not lead to more serious problems. All models are characterized by the presence of such main components and structural elements : drive system (motor), transfer devices, working part (knife or fishing line), belts and handles. Failure can occur in any part, but some components fail much more often than others.

Petrol or electric powered brush cutters (like different models, from various manufacturers) differ in design and nature of the problems. Some of them can be easily eliminated with your own hands, while others will require more overhaul or contacting service center.

The most common are breakdowns of brush cutters associated with the following structural elements:

• engine (in particular with a piston system);
• carburetor;
• barbell;
• starter (rope break, spring breakage or disengagement);
• with an ignition or fuel supply system;
• transmission mechanism (gearbox);
• filters and muffler.

Symptoms of malfunctions are as follows:

• the appearance of uncharacteristic sounds when operating the lawn mower;
• the lawn mower does not turn on, does not reach the required speed, or stalls;
• when the engine is running, the working part does not rotate or skips;
• gasoline leak;
• excessive heating of individual components.

Smaller breakdowns can also occur, which are detected without any special diagnostics:

• start button sticking;
• limiter drop;
• line break or breakage (loss of sharpness) of the knife.

Minor problems are easy to fix. Repair of a gasoline trimmer in more difficult cases will require preliminary diagnostics to find out the exact reasons. If you have the appropriate knowledge and skills in plumbing, you can fix problems yourself by replacing failed parts.

Disassembling a gasoline scythe, lubricating its parts and replacing faulty elements

To disassemble the trimmer for repair work In general, the following devices will be needed:

• screwdriver set (with different tips) and wrenches;
• small puller for removing bearings;
• special spark plug wrench;
• hammer.

In each case, you will need to disassemble individual components.

It should be taken into account that the starter (starter) in a number of models is non-separable - in this case, if there are problems with it, only replacing the element is possible. If the knot is disassembled, it can be repaired by removing and replacing the rope and spring, or installing the latter in place (when it comes out of engagement).

Disassembly and replacement of the rod

Quite often it is necessary to repair the trimmer rod. It is a structure made up of the following parts:

• a steel drive shaft having polyhedral or square splines at the upper and lower ends;
• aluminum tubes;
• a plastic bushing designed to maintain the centralized position of the drive shaft in the tube (to prevent vibration);
• a rubber shock absorber needed to connect the rod to the motor;
• steering wheel with a handle used for steering, and a stand, a belt.

Some models have a shock absorber between the steering column and the bar. All control elements(lock lever, ignition switch, gas button) are located on the handle.

A bevel bevel gear is connected to the lower end of the rod, but some lightweight models are produced without it. This is due to the fact that their rod has a curved shape, and the shaft is a flexible cable.

How to disassemble the rod and then reassemble it to lubricate the shaft or replace it is shown in detail in the video below. In the same way, replace a broken rod with a new one.

It often happens that the multi-faceted or square splines of the drive shaft “lick”, while the working mechanism does not rotate or does so with over-slip. Then the shaft is changed.

When appears knocking on the phone, you should disassemble the rod and check the condition of the bushing, and if necessary, replace it. How to properly assemble the throttle handle on a trimmer is discussed in the video below.

If there is no intact rod suitable for installation, then you can tighten the fracture site with a clamp or apply something like a splint. This measure is temporary, so you should replace it as quickly as possible.

Clutch repair

When the knife or line spins almost constantly when the engine is idling, and uncharacteristic sounds come from the front of the engine, this indicates a breakdown of the clutch. The cause is a broken spring. At the same time, the equipment mows normally.

If slipping occurs, then in addition the pads are worn out.

The trimmer clutch is repaired as follows:

• remove the cover from the muffler;
• remove the metal stand;
• then remove the cylinder and starter caps to gain access to the clutch;
• unscrew the side screws to remove the shock absorber cover;
• remove the tube from it, having previously loosened the tightening bolts;
• unscrew the clutch (shown in the photo below);

• inspect the condition of the spring, pads and bearings;
• a new spring is hooked by threading the hooks into the corresponding holes;
• To replace the pads, you need to remove the spring, and then unscrew the bolts on them.

If necessary lock the crankshaft using, for example, a rope.

Repair of gasoline engine, carburetor and gearbox

Engine problems can be caused by problems with the piston system, oil seals, and rings. To eliminate them, it is necessary remove drive motor.

Determining what exactly caused the breakdown is not easy. If there is a warranty, you should take the mechanism to a service center for diagnosis and repair. If it is not possible to turn to specialists for help, then it should be borne in mind that most often the piston rings need to be replaced. To do this, you will need to disassemble the engine and remove the piston. They do this in the following sequence:

• remove the cover of the plastic case by unscrewing the screws or squeezing the clamps;
• disconnect the rod with the crankshaft;
• remove the cylinder head;
• take out the piston and rings;
• if necessary, replace them;
• Reassemble in reverse order.

The rings should be installed carefully because they are quite fragile.

How the piston is installed and what happens replacing oil seals when carrying out engine repairs, this is clearly shown in the videos below:

With regular use, the trimmer may gearbox breaks. The gears and bearings wear out (they can also break). To prevent this from happening frequently, this unit should be lubricated regularly. The frequency is almost always indicated in the operating instructions for the model used (at least once a season). The video below can serve as repair instructions.

To lubricate the gearbox, you should unscrew the plug and simply squeeze out a suitable lubricant inside the assembly, turning the shaft.

You can only remove and clean the carburetor yourself, and also replace the gasket between it and the engine. It is quite problematic to determine the tightness of a unit at home. The main thing is to correctly assemble the equipment after repair so that the trimmer works without problems.

Common problems with electric trimmers

Electric trimmers differ from gasoline devices in a more simplified design. Conventionally, the electric scythe is divided into mechanical and electrical part . Accordingly, the same groups of problems that occur with this equipment are identified.

Most breakdowns cannot be visually detected. To do this you will need to use various devices. Visually you can determine the following:

• the integrity of the power cable is broken (the insulation is torn off it, or it is clearly broken);
• sticking or jamming of the start button;
• mechanical external damage to the brush cutter;
• problems with the cutting part;
• stopping the scythe when clogged with grass;
• plug damage.

To find out which part broke in other cases, you will need to disassemble the electric scythe and sequentially check the most likely options. At the same time, pay attention to external manifestations of deviations from normal operation devices. They help determine the cause.

Repairing an electric trimmer will require the following equipment and tools:

• indicator screwdriver;
• multimeter or tester;
• soldering iron;
• set of keys;
• screwdrivers with different bits.

Electric scythes often do not work due to reasons not directly related to them, but caused by a decrease in the supply voltage in the network or the inoperative state of the outlet used.

How to disassemble and repair an electric scythe yourself

Before disassembling and repairing an electric scythe, you should check the condition of the outlet and the voltage in the network. If its value deviates from the norms specified in the operating instructions, then you should not even try to operate the device without stabilizer, designed for the corresponding power. Otherwise, the electric motor may fail. Only after determining that the cause of the trimmer failure is directly related to it, can one begin to disassemble the mechanism for repair purposes.

Disassembly and repair of electrical parts

Disassembling the electric scythe for the purpose of repairing its electrical part is carried out in the following sequence.

The brush and bearing units are shown in the photo below.

The scythe will work without thermostat, you just need to constantly check the temperature of the electric motor yourself, periodically letting it cool down. You can also install a new similar sensor.

The electric motor start button can be checked by closing its contacts with a jumper. If the trimmer works, then the problem is clear. But this option is unsafe. Everything should be done carefully so as not to get hit electric shock. To change the button, use a screwdriver to remove it from seat and connecting wiring from the old to the new. After replacement, you need to assemble the electric scythe and then check its functionality.

Replacing brushes required if they are destroyed. In this case, it is enough to pull out the old ones from the grooves and install new ones in their place.

Connection terminals on different models trimmers are almost identical, so connecting and disconnecting wires is done the same way.

Bearing replacement is quite complex operation, because it can get stuck and not be removed from the motor shaft. It should be pulled or knocked down carefully so as not to damage the rotor or seat.

Bearing for trimmer ET1003A

When the trimmer motor fails and needs to be replaced with a new one, you should carefully remove the fan and bearings, and then install them in their original place. In terms of costs, replacement is almost comparable to purchasing a new mechanism. If you have no experience working with electric motors, it is better to entrust it to specialists.

Assembling an electric scythe

The instructions for assembling the electrical part of the brush cutter are as follows:

• install the engine by tightening the mounting screws;
• connect an electrical circuit;
• lay the wires neatly between the individual compartments in the existing recesses;
• are closing top cover, snapping the locks and screwing it in place.

After assembly, the functionality of the device is checked.

Gasoline and electric trimmers have a lot of possible breakdowns. In order for the device to be operational for a long time, it should be kept clean and in a dry place. An important point is carrying out regular preventive measures(for example, lubrication of the gearbox) and compliance with the operating rules set out in the instructions for the device. Buy better equipment high quality from well-known manufacturers.

When disassembling the mechanism, it is recommended to photograph the process step by step so as not to forget anything, and during assembly not to miss a single detail. When replacing parts, you should pay attention to the selection of suitable components: it is better to use original spare parts.

For some models, the rod consists of two parts; a coupling is used to connect them. Such devices are convenient for transportation.

We work from 9 to 21 on weekdays.

Our highly qualified technicians who repair equipment constantly participate in trainings and seminars and undergo mandatory certification. All service work is carried out using professional tools(Hazet, Snap-on, Chicago Pneumatic, Tissel, Bosch Pro). Cleaning of carburetors and engine parts is carried out in a professional ultrasonic bath VILITEK.

Attention! Our trimmer repair shop accepts any trimmers with Honda engines.

Repair stages

The trimmer may not work due to various factors. Therefore, we carry out a complete diagnosis of all parts of the lawn mower, draw up a list of upcoming work to eliminate breakdowns, and agree with the customer on the list of work, completion time and cost.

After the repair, all dismantled parts are given to the client along with the repaired equipment.

If after diagnostics it turns out that repairing the trimmer is not advisable, the client can receive a discount on the purchase new technology in our salon.

You can also contact our service center to sharpen the gas trimmer blade (gasoline trimmers, brush cutters), because this significantly affects the speed and quality of the tool, and also increases the service life of the trimmer drive gear.

Estimated cost of basic lawn mower repair work

Also in our Service Center there is a service urgent repairs, which provides for repairs in your presence, and only the cost of work increases, the cost of spare parts remains unchanged.

Some useful tips, which will help extend the life of the brush cutter:

Always run at full speed

Use only AI-92 gasoline paired with special 2-stroke oil

Gasoline must be mixed with special 2-stroke oil in the proportion described in the engine instructions

Drain the fuel mixture from the tank at the end of work, or use the mixture completely

Store the fuel mixture in a separate container for no more than two weeks.

Fresh and properly prepared fuel mixture is the key successful work engine. Otherwise, there is a risk of damaging the engine, which will lead to exclusion from warranty service.

After finishing work, take time to clean your tool.

We are always glad to see you at our service center.

The presence of a gasoline trimmer significantly simplifies life for those who often have to mow the grass around the house or in the garden, as well as make hay for animals. However, the simplicity of operation does not exclude the occurrence of malfunctions; moreover, the complexity of the mechanism entails the difficulty of repair. A service imposes additional costs on the instrument.

In order to extend the service life of the tool, preventive measures are necessary. For example, you should not overload the device; every time after 15 minutes, take a 10-minute rest. Do not neglect the operating rules and do not mow grass that exceeds the permissible height. If a breakdown occurs, do not rush to contact service department, inspect the device to identify the cause; perhaps you can actually repair the gasoline trimmer yourself, especially if you have some skill in working with equipment.

First, let's find out how to independently find the cause of a device malfunction, then we'll talk about why these breakdowns occur and how to fix them.

How to find a breakdown - symptoms

Although a petrol trimmer is complex device, some breakdowns can be found and easily fixed without the help of a service center or technician.

Here are a few ways to diagnose a breakdown at home:

• First, check the spark, since without it there will be no ignition. If there is no spark, then the problem is in the spark plug, or in the ignition itself;
• Also, if the spark plug is dry, then the fuel supply probably needs repairs or carburetor cleaning;
• If the spark plug is filled with fuel, wipe it dry and try starting the tool again;
• If everything is in order, but the tool does not work, then most likely the problem is in the engine. If you do not know how to repair this part of the tool, then it is better to take the gasoline trimmer to a service center.

Of course, we all want to save money on the services of a specialist, but do not forget that they charge money for unique knowledge and experience that allows them to fix the trimmer with a 100% guarantee.

Frequent malfunctions

If you make a list of breakdowns that owners of gasoline trimmers most often encounter, it will look like this:

• Engine;
• Carburetor;
• Broken rod;
• Calm;
• Starter;
• Fuel supply;
• Air filter;
• Muffler;
• Gearbox.

Below we will try to help those who want to repair a gasoline trimmer with their own hands, using available tools.

Check the spark plug of the petrol trimmer - is it dry or filled with fuel?

Causes of breakdowns and repair methods

If, for example, the tool stalls immediately after starting or does not start at all, then pay attention to the ignition system:

1. Turn out the spark plug. If there are traces of a gasoline-oil mixture on it, it means the problem is caused by carburetor adjustment. Violation of the cold start rules in the form of pumping up fuel also leads to the spark plug being thrown, and low quality The gasoline used leaves a thick layer of black soot. In these cases, this part will need to be replaced. If the spark plug is dry, then the malfunction is related to the fuel supply.
2. The accumulation of dirt in the gas tank leads to supply hose clogged. Disconnect it - if fuel does not flow, then the fault is in clogged filter or breather, which is cleaned with a needle, but the first one needs to be completely changed from time to time to avoid complications. It is advisable to do this every 3 months.
3. In addition, gasoline trimmers often require replacement air filter, because if it becomes clogged, the fuel mixture is not rich enough.

1. Another cause of a malfunction of a gasoline trimmer may be muffler when soot accumulates in it. To eliminate such a malfunction, you can dismantle the part, wash it in kerosene or burn it with a burner. In general, before buying a trimmer, it is advisable to get acquainted with the chosen tool through reviews of other people. Most models have weak points. This will allow you to protect yourself from a “pig in a poke” and prepare in advance for possible breakdowns.
2. There are often cases when, during operation, extraneous noises such as whistling and strumming are heard in the lower part. This indicates a risk of failure gearbox. Disassemble the housing and pay attention to the space inside the part, if there is no oil there, most likely this is the problem, lubricate the moving parts. If the action does not have the desired effect, then you will have to change the transmission gears or bearings. You can inspect the degree of wear right away, so as not to disassemble the tool several times.

In order to ask as little as possible how to repair the engine, carburetor or gearbox of a gasoline trimmer with your own hands, do not purchase less common models, because It will be extremely difficult to find parts for them, and prices from official dealers do not always correspond to the capabilities of buyers. If you are new to working with complex technical products, then it is better to contact the service department for help, because... Self-adjusting the carburetor, for example, can subsequently lead to combustion of the entire piston system. In addition, some parts cannot be repaired at all, and the entire unit must be replaced, a manual repair in in this case won't make sense. Also, do not rush to open the instrument body if it is under warranty.

To help, we can suggest you contact the services of a trimmer repairman, who can be found on one of the sites, for example, profi.ru - LINK (don't forget to select your city). At least, if the tool is repaired by a master, you can be confident in the result.

New petrol trimmers

If you can’t repair a gasoline trimmer yourself or it’s too expensive, then you should think about buying a new model, especially since today you can buy tools not only from European brands, but also inexpensive Chinese models. We have selected and made a selection of gasoline trimmers in different price categories from Aliexpress (only good ratings) and from several popular online stores.

A personal plot will not have a neat appearance if bushes have grown in its gardening area and the grass has formed a thick cover. This indicates the neglect of the site by the owner, who does nothing even to mow the lawns. But mowing the grass is the easiest task on the site, because various equipment has been created for this work.

The advantage of a gasoline trimmer

For example, a trimmer is a very convenient and productive, lightweight, reliable and practical device to use. It can be electric, having light weight, or gasoline with high performance. Gasoline ones are more common, as they have a fuel tank and can operate at a distance from electrical communications. Perhaps the only disadvantage of a gasoline trimmer is that, like any equipment, it periodically breaks down. But in this matter it also has an advantage, since for people who understand a little about technology, it is possible with their own hands.

Troubleshooting

If the trimmer stops starting, then you should not immediately sound the alarm and contact the service center, since the cause of the inoperability can be easily eliminated. Any DIY repair of gasoline trimmers begins with checking for the presence of a spark, without which it is impossible to ignite the fuel in the combustion chamber. If there is no spark, then the problem is either in the spark plug or in the ignition itself. An exception in cases where the candle is flooded fuel mixture when fuel overflows higher required level. In this case, you just need to wipe it dry and the treasured spark will appear.

It will also indicate that there is no fuel supply. If it is dry and light brown in color, in this case, repairing a gasoline trimmer with your own hands will involve adjusting the fuel pumping or All these reasons can be easily eliminated, the main thing is that the engine itself works properly. But if the cause of the malfunction is still hidden in the engine itself, then it is recommended to contact a service center due to the complexity of repairs. But for people who can hold a screwdriver in their hands, nothing is impossible. In most cases, trimmer ends successfully.

Briefly about engine repair

Engine problems begin after a few years correct operation from wear of components or suddenly due to improper use of the trimmer. Unfortunately, people regret improper operation when they repair gasoline trimmers with their own hands after an engine breakdown. And this happens in cases where the dosage of oil in the fuel is not observed or the device operates to the point of terrible overheating. Overheating may cause the crankshaft to jam, the piston rings to break, or the piston to completely burn out. In order to perform a piston inspection, it is enough to remove the cylinder head, from under which a piston will appear, clearly reflecting the condition of its work surface. The rings themselves do not protrude from the cylinder, so it does not matter whether you change the rings or the piston, in both cases you will have to remove the cylinder. When repairing gasoline trimmers with your own hands, it is worth remembering that they are fragile and can easily break if you lack experience. Installing the piston itself on the crankshaft is not too difficult. The main thing when repairing an engine is to assemble everything the same way as it was before disassembly, and then everything will work again.

Very often, complaints from owners of gasoline trimmers are related to various types of carburetor malfunctions. Of course, in this case, it is best to seek help from specialists in this field, for whom repairing carburetors of gasoline trimmers is an integral part of their profession. However, if you are still familiar with the basic principles of how a trimmer carburetor works, you can try to figure out the problem yourself so as not to overpay for service, since sometimes the breakdown can be really minor.

This article is intended to help you deal with the problem.

The first step is to inspect the carburetor as a whole and find out if there is any fuel leakage.

If it turns out that there are no problems with the fuel, you need to remove the carburetor from the engine and check the condition of the gasket located next to the carburetor.

If no malfunctions are observed here, you can try checking the carburetor for the degree of tightness.

To do this, you can purchase a special device, which is included in the tool kits for repairing the carburetor of brush cutters and is a special pressure gauge, which, in fact, checks the tightness.

If you don’t want to spend money on purchasing it, you can use a regular medical tonometer, on which you just need to change the pressure gauge.

When using this device, pay attention to the indication.

If the pressure does not drop and remains the same for a long time, you can rest assured, as this indicates that the carburetor is tight.

If the pressure through certain time starts to decline, which means there are still problems.

They may be associated with damage to any carburetor parts.

Before running to the nearest repair shop or specialized store selling trimmers and spare parts, try to figure out the problem yourself. Sorry for the banality, but the carburetor of a lawn mower is not spacecraft extraterrestrial civilization, and it is quite possible to repair it yourself. To be confident in your actions, read step by step instructions presented in this article.

Step-by-step instructions for repairing a lawn mower carburetor

Disassembling the carburetor

A visual inspection of the carburetor will help identify fuel leaks and air intake, but the main reasons for device failure lie internally. Therefore, in order to determine and, most importantly, correct the breakdown, the carburetor must be disassembled.

It doesn’t take much effort to disassemble the carburetor of a lawn mower.

Just unscrew the four screws on one side

and two on the other. This can be done using a regular Phillips screwdriver. Carefully unscrew the screws and put them aside. They may be needed during assembly. It is advisable to cover the table with a white cloth before disassembling so that everything can be seen, even the smallest parts that may fall out during disassembly.

Step #1

We begin disassembly from the side of the fuel supply system.

We remove the primer - the pumping bottle, which is noteworthy; during assembly it is simply impossible to install the carburetor parts incorrectly. The products have characteristic ebbs and holes.

Step #2

Remove the pump cover.

Step #3

Now remove the membrane. It is she who performs the function of pumping fuel into the carburetor.

When the membrane vibrates, the other side exerts pressure on the rocker arm of the mechanism and the needle rises, which, in turn, opens the hole and fuel is supplied.

Step #4

Remove the carburetor cover with the injection mechanism.

Step #5

Step #6

There is another gasket under the membrane. We also carefully remove it, without damaging it in any way.

Step #7

There is a valve here, which, when adding gas, opens and increases the flow of air into the engine.

After removing it, you are left with a bare body in your hands. The carburetor is disassembled.

Troubleshooting and Troubleshooting

Now it’s worth paying attention to the problems that occur during carburetor operation and how to fix them.

Problem 1: Clogged holes, channels and jets with dirt

The first thing that happens is that the holes and jets in the fuel supply system become clogged with dirt. Filters installed in the tank and directly in the carburetor do not help. They still allow small particles to pass through, which cause the mower to fail.

Step #8

Now we need to get the needle.

To do this, unscrew the bolt on the mechanism, holding it with your finger. The fact is, there is a spring there and careless action will lead to it being lost.

We take out the needle (see photo) and the spring.

Step #9

What to do with purging. Most effective way– this is the use of an ultrasonic bath.

It is filled with either a special liquid or gasoline, a carburetor is placed there and under the influence of ultrasound, the so-called cavitation effect, the channels are cleared of contaminants.

The second cleaning option is compressed air.

You can use a compressor available on the farm and clean the carburetor channels. However, this method is effective if the contamination is not very large.

If there is neither an ultrasonic bath nor a compressor at hand, then cleaning can be done in a third way using a special cylinder for cleaning the carburetor. They are sold in almost all auto stores and supermarkets. The price is low and is approximately 2-3 $. This cylinder is enough for 4 or 5 purges.

Step #10

Now we need to blow out the channels in the carburetor body and cover. See photo.

Step #11

Another particle of dirt may get stuck under the needle. See photo. This will also lead to failure of the brush cutter.

Important! When cleaning the carburetor, under no circumstances should you use needles, pins or wires. Even the slightest scratch will damage the carburetor. It will have to be changed entirely.

Problem 2: clogged fine filter

It is located on the carburetor cover and is a fine metal mesh. Its contamination occurs very often. This is due to the deposition of oil, additives, and dirt on it.

Step #12

Sometimes, when disassembling into meshes, a certain film is discovered. This carburetor does not have enough fuel and the brush cutter either does not start or works intermittently. The cleaning methods are identical to the first reason: ultrasonic bath, compressor or can of special solution. In addition, if the mesh is thoroughly clogged, you need to take a soft brush for watercolor paints, dip it in gasoline and carefully rinse it without damaging it.

Problem 3: membrane failure

Step #13

They have the ability to wear out during use. From prolonged use, they become deformed, stretch, lose elasticity, low-quality fuel corrodes them, and can no longer perform their functions well. This also applies to the needle itself. The fact is that it is covered with a thin layer of rubber, which wears out during operation and can no longer fit tightly into the hole. The brush cutter begins to work intermittently. To eliminate such a breakdown, it is necessary to replace all worn parts. Where can I get them?

In specialized stores garden equipment repair kit for brush cutter carburetor for sale a certain model. The cost of such a repair kit ranges from 40 to 60 hryvnia.

It includes two diaphragms, a gasket, a needle valve and a spring.

All carburetor wear parts can be replaced. Therefore, you should not rush and buy a new one, and you also don’t need to run to the workshop; repairs can be done by any user of a brush cutter. Professionals claim that the quality of the components in the repair kit even exceeds the characteristics of the original carburetor parts. Therefore, a high-quality repaired unit will work better than a new one.

Problem 4: the bubble button for manual fuel pumping is worn out

Step#14

In addition, the bubble button for manually pumping fuel may fail. Exposure to gasoline leads to the fact that during prolonged use, the rubber is corroded and it begins to stick together or under the influence low temperatures, for example, during storage, it bursts. The button should also be replaced if necessary. In addition, its cost is small and will not affect the size of the repair budget.

Based on the above, we can conclude that there are only three main carburetor malfunctions: clogged channels, contamination of the fine filter and failure of components. In the first two cases, cleaning is enough, and in the third, a repair kit will help.

Carburetor assembly

Assembling the carburetor of a brush cutter is not difficult at all. You must perform all the steps in reverse order:

Step #15

Install a spring and a needle valve in the carburetor cover. Holding the spring with your finger, tighten the fastening bolt.

Step #16

Screw the air supply system valve to the product body with two screws.

Step #17

Turn the carburetor over and proceed to system assembly fuel system. First you need to install the gasket.

Step #18

Install the membrane.

Step #19

Place the carburetor cap.

Step #20

Install the main membrane.

Step #21

Place the pump cover.

Step #22

Install the plate with the manual fuel pumping button and tighten the four screws.

The carburetor is assembled and ready for further use.

Repairing a lawn mower carburetor may seem like a complicated process for the first time, but if you have to disassemble it a second time, this procedure will not cause any particular difficulties.

If you do not find any of the listed problems in your carburetor, it is recommended to seek help from a specialized service.

And you can also watch a video of repairing a brush cutter (trimmer) (part 1 - disassembly)

https://youtu.be/z5o48ZsL2jY

Repair of brush cutters (trimmer) (part 2 - assembly)

https://youtu.be/03Gi12j8wK0