How to clean a brushcutter muffler. If preventive maintenance didn’t work

How to clean a brushcutter muffler

Hi all. Can someone teach me how to descale exhaust pipes, or whatever you want to call all that fouling. It may be desirable to restore the machine to a brilliant condition for aesthetic reasons. I’ve watched a lot of videos on this subject, so please don’t waste your time on stories about Harpies and Sprites with Coke. Are there really powerful tools to pipe back to its original factory condition. shiny as in the salon? With foreign internet stores usually do not allow to order the poisonous chemicals like sending by mail is prohibited. Maybe there is something on the Russian market? Who knows?

As already noted above. chrome clean Autosol’am (metal or chrome. actually it makes no difference. Aluminium did not try). I even removed small scratches from the feathers with it, not that the exhaust “up to the factory” polished. By the way. you can polish (without fanaticism) and aluminum (lasts half a season), and paint (chafes) and windshields (but not visors)! :)) )

Stainless (it’s usually all sorts of “cranked”). in the beginning with a means for cleaning stainless steel from household goods (in especially bad cases. in the beginning of the standard. Т.е. I polished it with sandpaper from and up to 2500, and then with GOI), then degreased (with white spirit!) and then with the same Autosol (I used it to clean the burnt cover). At the end of such a treatment to wipe with a solvent such as 646 or silicone remover. otherwise it may turn blue. After heating. let it cool down and polish a little more with beer Autosol. but without the “after treatment” solvent. Really rusty “pants” from the in-line four the people managed to bring in a pious appearance for half a day of intensive work (or day under beer)

SZY. If blue. on ebay to look for BlueJob (hussars silent!). Happens in the U.S. and costs like gold. 1 gram/1 dollar. It’s like a 20 gram can. But it works. But if it’s not too blue, the same auto-salt works. In general. a tube of Autosol in a repair set of any driver of iron(!) of the motorcycle should be.

All the rest, IMHO. shamanism and, pardon my soul, marketing

SZY. And do not dare to clean chrome with GOI. and dullness is ensured (then you will not even take out avtosol) and chrome can come off. Unless, of course, the GOI is “blue” (I think there were 4 colors depending on the “grit”). Only I don’t even know where to find one. And strongly heated chatsi always degrease after “processing”. And the “glossier” the surface, the longer it will be.

Method one: heat treatment

The essence of this method is that the dust, dirt and soot themselves fall out of the exhaust pipe if it is evenly heated to a certain temperature. There are two ways to do this:

Whichever method you use, the tube should heat up to a red color. After that the heating should be stopped and the parts should be allowed to cool down naturally.

However, this method has very tangible disadvantages. The thing is that most automotive mufflers have a very specific and irregular shape, and therefore heating them evenly over the entire surface (which is necessary for quality cleaning) can be very difficult. It is also worth noting that exposure to high temperatures can have a very adverse effect on the structure of the metal product (especially if we are talking about repeated exposure). The exhaust pipe can become more brittle and thin after several such cleanings. Also the metal it is made of will be more susceptible to corrosion damage. Probably it is not even worth speaking about the fact that putting a pipe into a fire can noticeably influence the presentability of a product. From all of the above, we can conclude that this method is best used only as a last resort.

Heating the muffler with a blowtorch

The need for cleaning a car muffler

A clogged muffler needs cleaning. In fact, its clogging leads to the following consequences:

If low-quality engine oil is used, it does not burn completely and emits separate particles. Oil particles accumulate and form a clog.

After a blockage occurs, the muffler grid falls off and the resulting sludge clogs the exhaust. Before cleaning it is first necessary to determine the cause of the blockage.

Ignition

So, if you have problems with the tool not starting or stopping right after the start, you should first pay attention to the state of the ignition system. Try unscrewing the spark plug and examine it. In the case when the device is completely dry, something must have happened to the fuel mixture supply.

How to Clean the Muffler on a Husqvarna 128 p Trimmer. The problem of power loss often lies on the surface.

Silencer of brushcutter Dnipro-M BT-430

Determining the cause of oil leakage under the muffler of the brushcutter Dnipro-M BT-430.

The spark plug is wet? Completely “covered” with petrol and oil mix? Your gasoline grass trimmer, whose repair we are trying to describe, has problems with carburetor adjustments. This often happens when non-specialists have tried to tune it. If you have no experience, we strongly advise you to contact the service center, as by your actions you may well burn the entire piston system.

However, it’s not all bad: if you violate the rules of cold starting, all the time trying to pump the fuel mixture, it can easily lead to a nip.

It is different when the spark plug is covered with a thick layer of black carbon deposits. In this case, the gasoline trimmer for grass, the repair of which we describe, has been exposed to a low-quality fuel mixture. It may be that the carburettor is set incorrectly and gives too rich a fuel mixture. Simply change the spark plug.

Basic rules and techniques when working with a brushcutter.

To get good mowing results and long working life, it is important to use and maintain your brushcutter properly. Even if it is the first time you are holding a brushcutter, you learn the correct mowing technique very quickly. The machine is simply turned in a semi-circle from right to left, moving steadily forward. Here are the basics and some tips to help you mow even large areas in a short period, and get the best out of your mowing.

The basic mowing technique is the most common.

Because the cutting attachment is counterclockwise, it is more common in working practice to mow from right to left.The advantage of this procedure is that the grass cuttings always rest on the surface that is already cut.

Large, flat surfaces. the right technique.

Huge, even surfaces should ideally be mowed in a square pattern. The area is squared, then you always work along the outside towards the middle.

Basic technique in case of tall grass.

If grass is very high or stubborn weeds, it is best to mow in both directions: first you cut the higher part of the mowed grass in one cut to the right, and then mow the lower part of the grass in the opposite direction (to the left). Even in this case, the grass cuttings are still lying on the left side.

You’ll make great progress the way of straight mowing especially on a slope: mow one swath parallel to the slope and then go backwards on the mowed strip. Then mow the next higher swath. The grass cuttings are always placed on top of the cut surface.

Masterfully bypassing obstacles. mowing with playfulness.

To mow against trees or bushes without damaging limbs or trunks, the line is ideally suited. How to make a grass trimmer blade guard for a grass trimmer boom hole and. If there are many plants at a small distance from each other, mowing is suggested before mowing. To do this, use the protection of your brushcutter as a guide. Always guide it exactly along the tree or bush, and move it around. The trunk remains protected, the area around the trunk will be mowed.

How to Mix the Right Fuel: Fuel = Gasoline Oil

Oil. high quality two-stroke oil for high speed machines (10-15k. RPM, about 200 rpm). Do not use motorcycle oil (low engine speed) or water equipment (a different cooling system). their use does not provide the necessary lubrication of the piston group and the details of the entire engine! You can use, for example, Husqvarna, STIHL or Champion oils.

How to make a muffler for a grass trimmer

The principle of operation and design brushcutter is not very different from any other small gasoline garden equipment, such as chain saw, brush cutter or hedge trimmer. How to make a self-made protection for grass trimmer with his own hands. In the basis of construction brushcutter installed gasoline 2-stroke carburetor engine with one cylinder (less often four-stroke), hand starter and air cooling system. The engine runs on a fuel mix of gasoline and 2-stroke motor oil, in the ratio of 1:50. Proportion of fuel consistency may differ from the standard, depending on personal manufacturer’s advice, indicated in the annotation on the operation of the product. Always follow the recommended ratio. Mowing equipment for brushcutter is a mowing drum with a line or an iron cutting blade, a saw. The engine revolutions are transferred to mowing headset according to the following scheme: crankshaft. clutch. clutch plate. drive shaft. bevel gear. mowing head (cutter).

Clean properly

To clean your chainsaw perfectly, you will need the following tools:

Your tool kit is shown in the photo.

Cleaning the carburetor of a chainsaw should be done according to the following method:

How to Make the Right Fuel Mix: Fuel = Gasoline Oil

Oil. high-quality, two-stroke oil for high speed machines (10-15 thousand rpm). RPM, about 200 rpm). Do not use motorcycle oils (low engine speed) or oils for water vehicles (different cooling system). their use does not provide the necessary lubrication of the piston group and the engine parts! You can use, for example, Husqvarna, STIHL or Champion oils.

How to make a muffler for a trimmer for grass

The principle of operation and design brushcutter is not very different from any other small gasoline garden equipment, such as chain saw, brush cutter or hedgetrimmer. How to make a self-made protection for grass trimmer with your own hands. Gasoline-based, single-cylinder 2-stroke carburetor engine (less often a four-stroke), manual starter and air-cooling system. The engine works with a fuel mixture of gasoline and 2-stroke motor oil in the 1:50 ratio. Proportion of fuel consistency may differ from the standard depending on personal manufacturer’s advice, indicated in the annotation on the operation of the product. Always keep to the recommended ratio. Mowing headset for brushcutters is a mowing reel with a line or an iron cutting blade, a saw. The transfer of engine speed to the mowing headset occurs under the following scheme: crankshaft. clutch. clutch plate. drive shaft. bevel gear. mowing head (knife).

Clean properly

To perfectly clean the chain saw, you will need the following tools:

Tool kit can be seen in the photo.

Cleaning the chainsaw carburetor is worth creating according to the following method:

How to Clean a STIHL Muffler

Engine only ran at idle. Thought it was the carburetor, but spraying some cleaner into the air duct didn‘t make any difference. Took the engine apart and everything was perfect

but maybe there’s a radical way to clean a muffler until it’s almost new?

Same symptoms on a Husk 128. Fixed it with a spark plug. The original spark plug had a lot of soot on it.

Same symptoms on a Hoosk 128. Solved this problem by changing the spark plug. The original one had a heavy soot build-up.

And there’s a lot less mileage in there. The spark plug, if it has a 20 year life, can have no more than 5 000 hours of operating time. Rinse in the morning under a faucet and hold a new spark plug. We look at the ceramic and the integrity of the electrode. If all is normal, we adjust the gap and paglio further exploitation

there is a radical way to clean the muffler

You pour it in and it eats everything up

Here not long ago, antipoliman recipe advised that the oil should be mixed 1k25

I dilute it 1:50 with STIHL brand oil. In a season it goes a liter bottle and 50 liters of gasoline. No gauze in the muffler, but it’s heavy, so it’s got a lot of soot in it.KarapuZ Well, why change it, small, lightweight, works flawlessly, no spare parts. I’ll see if I can’t clean it out, I’ll buy him a new muffler, he deserves it for 12 years.

My neighbor has the same model. Same model, same time, mowing less, but not too much, it still pours gasoline only. It’s a no-holds-barred piece of equipment. you can mow with one hand, you can mow all day long and you won’t get tired. Model fs 45.

I had a tip from the antipolyman a while back that oil needs to be mixed in 1k25

Diluting 1:50 with original STIHL oil. I waste a liter bottle and 50 liters of gasoline in a season. No mesh in the muffler, but it is heavy, so it is a lot of soot.KarapuZ Well, why change it, it’s small, lightweight, works flawlessly, no spares. I’ll see if I can’t clean it out, I’ll buy him a new muffler, he deserves it after 12 years.

Husqvarna 128R Muffler Cleaning.

My neighbor has the same one, purchased at the same time, mowing is smaller and less frequent, but not too little, and also still only pours gasoline. It’s a no-brainer. You can mow with one hand, you can mow all you want in a day and you don’t get tired. Model fs 45.

Т.е. You’re one of those dummies who don’t know arithmetic and think that 1:50 is 50 liters of oil? I don’t know where you got the fouling from.

Trouble with gasoline trimmers

In order to draw a picture of the faults of the gasoline grass trimmer, it is necessary to have an idea of the structural design and operating methodology of the device. The heart and base of the grass mower is the motor, which rotates the shaft that transmits the rotation to the cutting part. Starting from the basics check everything in order, using the necessary tools.

It’s simple, a few basic points for any engine: for the engine to work you need good compression, its absence will not start the engine. The next thing is to check the ignition, without a spark will not ignite. A clogged fuel system will make it difficult to supply fuel and a dirty exhaust system will also make it very difficult to start the motor.

That’s probably the main thing to check. The most popular repair scheme. the method of elimination. That is, in order we cut off the malfunction options, I will tell you in more detail:

Failure of piston group

On all two-stroke machines which are brought to us, we first of all check the scuff marks on the piston and cylinder. To do this, unscrew the 2 bolts of the muffler and remove it, shine a light into the exhaust window. If the piston is smooth and the rings are springy. it is good if the piston is damaged or the rings are stuck and corked. it is not acceptable. The cause of the failure is overheating, old fuel mixture or lack of oil in the solution. The only panacea. Overhaul with piston replacement.

Trimmer ignition malfunctions

Next, we check the spark, leaning on the mass of the plug and cranking properly starter. If there is no spark, disconnect the wires from the coil to rule out the switch. Perform all the operations with a new spark plug only. Dried, hardened, wiped spark plugs are NOT RECOMMENDED. There are also cases when the spark is gone with a warm spark plug and does not appear until it has cooled down. Bad contact of the cap and high-voltage wire is also possible. If the spark does not appear, the ignition coil must be replaced.

Contamination of fuel system

If the motor and the spark are all right, we’ll try to start it. We recommend spraying carburetor cleaner into the combustion chamber, under the spark plug, or into the carburetor window. The engine will start and is likely to stall, repeat the operation several times. If all else fails, you need to try carburetor cleaning. We do not recommend tinkering with it yourself, because of the small parts or lack of them due to inexperienced repair. Contamination of the fuel system, that is the most common problem.

carburetor malfunction

Unfortunately cleaning a carburetor is not a cure-all and it is not always possible to clean it completely. Even ultrasound and a good cleaner can be helpless. Also in carburetors often fail: needle, check valve, gas pedal valve, diaphragms, needle and seat. Some may say that there is nothing to malfunction there, but the carburetor of your chainsaw is structurally more complicated than the carburetor of your car. In many cases you have to replace the whole carburetor or some of its parts.

clogged brushcutter exhaust

Since there is oil in the gasoline, it burns and gives off a lot of carbon monoxide that gets deposited in the muffler and exhaust window. On some trimmers, there’s a mesh. The flame arrestor, it must also be cleaned. The muffler either needs to be replaced or you can try a burnout. My experience is to determine if the exhaust is clogged just by pulling the starter. If you find soot in the window, peel it off, it must not get into the combustion chamber. Use good oil with low smoke emission.

Problems with rotation of the cutting blade

All grass trimmers have a rod with a cutting blade at the end, they come in two types: straight with a gear at the end and curved with a straight gear to the hub. If you have a straight boom, look at the 3 components: the clutch, the shaft, the gearbox. And if you have a curved boom: look at the bushing and the boom respectively. Pay attention to the integrity of connections, check the connection spline on the shaft, gearbox or bushing. The actuator can be checked as long as the motor is running properly. Our practice shows that many people confuse motor and drive problems. If the motor is clogged or malfunctioning, it may seem that there is no transmission to the blade.

Grass trimmer clutch malfunction

All gasoline-driven trimmers have a centrifugal clutch, the essence of which is that the pads begin to separate and catch the cup when the revolutions are added. The easiest way to check the clutch is to unscrew the rod from the motor, usually 4 bolts. If the pads are worn out the clutch needs to be replaced, you hear a metallic rattle. If your trimmer has a clutch and the line keeps spinning, it means the spring is stretched.

Faults in the drive shaft and boom

The main thing to watch is the splines on the shaft, the connection between the gearbox and the clutch cup. It is also very common that users do not insert the boom properly into the connection, on trimmers with collapsible booms. Be sure to check shaft integrity. If there is vibration when mowing, the plastic bushes are broken. Vibration is very harmful to the vascular system. In order to prevent the bushings from melting, they need to be lubricated and the mower needs to rest.

Grass cutter gearbox breakage

The gearbox is the angular transmission of rotation from the boom to the trimmer line or blade, and consists of a worm pair, housing, and bearings. Accordingly two popular problems: seizure of bearings and consequent splintering or wear of the worm gear. Causes of failure. the lack of lubrication and the stress caused by, for example, mowing with the blade and hitting an obstacle deforms the gears. Shrubs are also hard material. Using a blade shortens the life of the gearbox.

Faults of gasoline trimmers

In order to draw a picture of the fault of the gasoline grass trimmer, it is necessary to have an idea of the structural structure and operating methodology of the device. The heart and core of the grasshopper is the engine, which turns the shaft that transmits the rotation to the cutting part. Starting from the basics, we check everything in order, using the necessary tools.

It is very simple, a few basic points for any engine: for the engine to work there needs to be good compression, the lack of compression will not start the engine. The following, that it is necessary to check up is ignition, without spark there will be no ignition. A clogged fuel system will complicate the fuel supply and a polluted exhaust system also makes it very difficult to start the engine.

This is probably the main thing to check. The most popular repair scheme. elimination method. That is in order we cut off variants of malfunctions, I will tell you more about it:

Failure of piston group

On all two-stroke equipment that is brought to us, the first thing we check the scoring on the piston and cylinder. This can be done by unscrewing the 2 bolts of the muffler and removing it, shine a light into the exhaust window. If piston is smooth and rings are springy. it is good if the piston is damaged or the rings are stuck and caked. it is not acceptable. The cause of the failure is overheating, old fuel mixture or lack of oil in the solution. The only panacea. Complete overhaul with piston replacement.

Trimmer ignition malfunctions

Next, check the spark by leaning the spark plug on the mass and cranking the starter properly. If there is no spark, disconnect wires from coil to rule out the switch. Perform all operations only with a new spark plug. Dried, calcined, wiped plugs are NOT REASONABLE. There are also cases where the spark disappears on a warm braid and does not appear until fully cooled. Also possible bad contact between the cap and the high-voltage wire. If the spark does not appear, you need to replace the ignition coil.

Contamination of fuel system

If everything is OK with the engine and the spark, let’s try to start the engine. We recommend spraying a carburetor cleaner in the combustion chamber, under the spark plug or in the carburetor window. The engine will start and most likely will stall, repeat the operation several times. If nothing helps, you need to try and clean the carburettor. We do not recommend you do it yourself, because of the presence of small parts or their absence due to inexperienced repair. Contamination of the fuel system, that is the most common fault.

carburetor malfunction

Unfortunately cleaning a carburetor is not a cure-all and you can’t always get it fully cleaned. Even ultrasound and a good cleaner can be helpless in some cases. Also often the following things fail on carburetors: the needle, check valve, gas pedal valve, diaphragms, needle and seat. You might say there’s nothing to malfunction, but a chainsaw carburetor is more complex than a car carburetor. In many cases you have to replace the whole carburetor or some of its parts.

Clogged brushcutter exhaust

Since there is oil in the gasoline, it burns and gives off a lot of carbon monoxide, which is deposited in the muffler and exhaust window. On some trimmers, a screen is installed. The flame arrestor, it also needs to be cleaned. Muffler either change or try to burn through. My experience allows me to tell if the exhaust is clogged just by pulling the starter. If you find soot in the window, peel it off, it must not get into the combustion chamber. Use good oil with low smoke emissions.

Cutter blade rotation problems

All grass trimmers have a rod with a cutting blade at the end, they come in two varieties: straight with a gear at the end and curved with a straight gear to the hub. If you own a straight shaft look at the 3 components: clutch, shaft, gearbox. And if you have a bent boom: look at the bushing and the boom respectively. Pay attention to the integrity of the joints, check the connecting splines on the shaft, gearbox or bushing. You can check the actuator if the motor is working properly. Our experience shows that many people confuse motor and drive problems. If the motor is clogged or malfunctioning, it may seem like there is no transmission to the blade.

The grass trimmer clutch is not working properly

All gasoline-powered trimmers are fitted with a centrifugal clutch, the meaning of which is that the pads, when the revolutions are added, begin to separate and clutch the cup. The easiest way to check the clutch is to unscrew the rod from the motor, usually 4 bolts. If the pads are worn out the clutch needs to be replaced, you hear a metallic rattle. If your trimmer is equipped with a clutch and the line rotates constantly, then the spring is stretched.

Drive shaft and boom malfunctions

The main things to look at are: the splines on the shaft, the connection between the gearbox and the clutch cup. Also, very often users do not properly insert the boom into the connection, on trimmers with collapsible booms. Be sure to check the integrity of the shaft. If there is vibration when mowing, the plastic bushings are broken. Vibration is very bad for the vascular system. In order to prevent the bushings from melting, they need to be lubricated and to give the mower a rest.

Gearbox breakage of a grasshopper

Gearbox is an angular transmission of rotation from boom to line for trimmer or knife, it consists of worm pair, body and bearings. Accordingly two popular problems: seizure of bearings and consequent splintering or wear of the worm gear. Reasons for failure. It is the lack of lubrication and load, for example, when mowing with a knife and hitting an obstacle, the gears are deformed. The bush is also a hard material. Using a blade shortens the service life of the gearbox.

When the carburetor needs adjustment?

Stable operation of the brushcutter carburetor depends to a large extent on correct carburetor settings.

Adjustment of the assembly is required in the following cases:

  • after the new grass trimmer has been run-in, when 4-5 full tanks of fuel have been used during operation;
  • when the operator frequently changes the brand of gasoline used for refueling;
  • As a result of a sudden change of weather;
  • Long storage of the grass trimmer;
  • As a result of arbitrary unscrewing of the adjusting bolts of the brushcutter, caused by strong vibration of its motor;
  • due to a sharp increase in the amount of fuel consumed by the trimmer.

Adjust the carburetor trimmer also need in those cases where the spark plug instrument quickly appears soot, as well as a sharp increase in the volume of exhaust emissions trimmer.

Methods of elimination

A list of impending work on the engine may include the following:

  • fuel pump replacement;
  • disassembly and flushing of the mesh filter;
  • Replacement of the adjusting lever;
  • It is also necessary to clean the adjustment space;
  • replacing the diaphragm (or the entire unit where the diaphragm is located);
  • adjustment of the intake, exhaust and needle valves;
  • replacement of the butterfly valves;
  • cleaning of fuel ducts and diffuser;
  • replacement of screw springs;
  • primer change.

Not all of these jobs can be done. Often it turns out that many of them are not necessary if a specific fault is immediately detected.