Stihl trimmer does not develop speed stalls

30th April 2021

Recommendations for use

It is necessary to take temporary breaks from work. lawn mower does not develop speed Diagnostics and Lawn mower trimmer Stalls at. This is necessary so that the engine of the device does not overheat and fail prematurely. lawn mower does not develop Dismantling the Stihl 180 chainsaw Stihl FS 55 is not gaining momentum? Yes. 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 avoid damage to engine parts.

In no case should you store gasoline in a plastic container from under water. When mixing the fuel mixture, a static charge accumulates, you can “catch” a spark.

Therefore, at gas stations it is not allowed to fill gasoline in plastic cans, only in metal ones. Before pouring gasoline into a metal canister, it is better to put it on the ground, this way static is removed from the body.

But there are situations when simple manipulations with the lawn mower do not help. The engine still won’t start. In this case, we are going to check the power supply and ignition system, guided by the rule “the engine does not work if there is nothing to burn or nothing to ignite”.

You also need to remember that a piece of the cable, spun by centrifugal force when the trimmer head rotates, flies like a bullet. Imagine what would happen if it hits the leg or someone’s eye?

Using a cable, wire, or multicore cable instead of a fishing line leads to a quick breakdown of the trimmer. In addition, it is a direct violation of safety regulations.!

Experienced users recommend buying a line with a star profile. Compared to a round one, it mows much better, stalks as thick as a finger, a fishing line with a diameter of 3 mm chops into an easy one, and is less consumed.

Any braid has a knife on the protective cover, which cuts off the excess fishing line after winding, and the cable is no longer cut. If part of the cable breaks off, then the result is an imbalance, increased vibration. Bottom line: shaft drive bearings break.

Features and best models

The mower of the Stihl company deserves a special mention, which is distinguished by its own versatility, reliability and ease of use. The company’s specialists have created many varieties of braids, with different features 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 lawn mower is perfect for decorating shrubs, giving them a certain artistic image and texture. Lawn Mower Does Not Develop RPM Reason 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 equipment.

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, will do just fine. 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 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).

The professional trimmers include Stihl FS 130 and FS 250. Let’s consider the characteristics and properties using the example of several mowers, in particular FS 38, FS 70 and FS 130.

See the features of the device on video.

See the trimmer instructions for the continuous running time of the lawn mower. On average, we mow for 15-20 minutes, after which we turn off the trimmer and let it cool for 3-5 minutes. Weather conditions also affect the duration of continuous operation. In hot weather, when mowing tall grass, thickets of weeds, under heavy load, the trimmer overheats faster.

Many lawnmower problems arise from improperly prepared fuel mixtures. In two-stroke engines, lubrication is carried out with a special oil (not ordinary engine oil!), Mixed with gasoline. If the oil is not mixed with gasoline, the lawn mower will quickly fail. Mix the oil / gasoline in the proportion indicated in the trimmer instructions. Usually it is 1:40 or 1:50.

The question often arises: the proportion of 1:50 is how much oil and gasoline?

the lawn mower does not pick up speed, the cause of the malfunction and its elimination

1st start-up of the newest lawn mowers. Removed the mesh from the muffler, began to work.

Another one is the presence of malfunctions in the power system.

In this case, the lawn mower will stall at idle speed. The Champion trimmer stalls at RPM. Lawn Mower Goodluck 4300 stalls on video revs. The mower will stall when you press the gas. The lawn mower stalls at high rpm. A misalignment or improper adjustment of the carburetor can lead to problems with the power system.

Vibrations that occur during the operation of the lawn mowers can lead to misalignment.

Fixing a Stihl trimmer from bogging down

Incorrect adjustment of lawn mowers can be corrected simply by adjusting it in accordance with the requirements specified in the instruction manual.

In addition, sometimes gasoline trimmers can stall due to the fact that the valve located in the gas tank cap is simply clogged or stuck.

To find out, try using a scythe by loosening the gas cap.

If the device works properly in this mode, clean the valve.

What to do if the engine won’t start?

If the lawnmower fails to start, the first step is to check the availability 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 must be at least 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 lawn mower 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 fresh mix.

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 mowers from running. Therefore, if problems arise with starting the motor, check the condition of the filter. Replace the filter if necessary. It is forbidden to 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

How this procedure is done in more detail you can look at

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

So, in order:

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. Method 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 spark 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 people pull the handle with such force that they have to repair the starter of the lawn mowers 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.

Problems with starting the engine

It is very important to correctly determine the cause of the failure, because otherwise we simply cannot fix it. If there are no extraneous sounds when trying to tune the chainsaw (knocking down, grinding, etc.)

And it often turns out that there is actually no problem at all. For example, if it is wrong to start the chainsaw and pull the plug for a long time, the engine just pours and starts very hard.

To properly start the chain saw motor, set the lever or switch to the flap position. Then you need to pump the mixture into the carburetor, if a fuel pump is available. Pull out the starter handle until motor resistance is noticeable and vigorously extend the amplitude by taking your hand to the side. After two. three such movements, the engine must first start and then decay. If this does not happen, then it is necessary to move the lever to the half-throttle position or simply to the working position, and then continue the operation of the chainsaw in this mode. Many chainsaws “half-throttle” are locked automatically when pulling the choke

Some models have key ignition, it is important to make sure it is on

If the engine won’t start, the first thing to do is. unscrew and check the spark plug. There are times when the plant fills the burner with fuel during the cold season. Then you also need to unscrew the candle, dry the combustion chamber with one plant, clean the spark plug, screw it in and restart. It is advisable to check for a spark immediately. on the twisted candle, we put on a cap with high voltage wire, we put it on the cylinder, and we pull the starter. Visually observe a frequent blue spark. OK. We roll the candle into place and fire it up. If there is no spark, change the spark plug and try again. Again, no. check the connection of the high voltage wire to the spark plug, coil and ignition system.

In general, the condition of the spark plug can be used to determine the type of fault.

Dry.
Most likely the fuel mixture is not entering the cylinder. This is not an ignition system, so the plug is screwed in and checked.
Wet, heavily splashed with fuel.
Excessive fuel mixture is caused by a violation of the starting rules as described above, or by an incorrect carburetor setting.
Coated with black carbon.
This could indicate the use of poor quality oil, an incorrectly adjusted carburetor, or an incorrectly calculated gasoline to oil ratio. The candle should be washed, cleaned of carbon deposits with a sharp object (awl or needle), wipe the electrodes with a cloth and reinstall.

When checking the spark plug, you need to pay attention to the gap between the electrodes: the normal is considered from 0.5 to 0.65 mm. Damaged or worn gasket should be replaced

Correctly adjusted carburetor chainsaw ensures full power efficiency with the most economical fuel consumption.

The need for tuning the carburetor chainsaw is infrequent, since the adjustment is initially made by the manufacturer to achieve optimal operation. The adjusting screws are designed to more accurately adjust the carburetor chainsaw, if necessary.

When and why is it needed?

Among the reasons for the failure to fix the adjusting screws, the following are most common:

Strong vibration or damage to the protective cap. It rarely happens, but it does happen.
Serious engine (piston) wear. Of course, in this case, it is better to take care of the repair of the chainsaw, but at the same time adjusting the carburetor can improve its functionality for some time.
Litter in the carburetor due to poor quality petrol or scale formation. In this case, in addition to adjusting the carburetor, it can be avoided.

Immediately after wound up

trimmer

Trimmer ignition module

Another reason why the trimmer starts and stalls immediately is a clogged fuel valve. To restore the circulation of gasoline in the fuel system, it is enough to dismantle the valve and eliminate contamination.

The problem may be a malfunction of the ignition module, but in case of such a malfunction, it is best to contact a specialized center.

Trimmer stalls: causes and troubleshooting was last modified: July 22nd, 2018 by

The unit may stall immediately after starting if the carburetor is misaligned or incorrectly adjusted. this causes an uneven fuel supply. The result is that the device vibrates distinctly. For troubleshooting, the carburetor is reconfigured, following the instructions for the mechanism.

Also, the engine stops when the fuel supply valve becomes clogged. In such cases, it is sufficient to simply clean it. If the lawn mower started working at first, but then immediately stalled, then it is possible that the fuel enters the carburetor unit with some difficulty. The weakening of the valve helps to solve the issue, which ensures free circulation of the mixture in the system.

The stoppage can also be caused by air leaks in the presence of mechanical damage to the hose (holes, cracks) that takes the fuel. In this case, add more revolutions to the drive in order to quickly expel air bubbles from the system.

How to properly replace the spark plug?

The order of work is as follows:

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 defective, 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

Selection Tips

In accordance with the current statistics, it is the gasoline models of mowers that are in the greatest demand. This is largely due to their mobility and functionality. However, when choosing a specific model of equipment, a number of other parameters must be taken into account. In such situations, it is useful to compare lawn mowers with other types of trimmers.

Electrical devices are connected to a household mains with a voltage of 220 V. Such machines do not pollute the air due to the absence of exhaust gases. No less important points will be the minimum noise level and the relatively low weight. At the same time, the area to be treated is significantly limited by the length of the carriers used.

Cordless models are by far the least common grass trimmer. The electric motor of these mowers is powered not from the mains, but from the battery, which ensures maximum mobility. However, the operating time of the equipment is limited by the battery charge and averages 35-45 minutes. Another important point is the relatively high cost of battery models.

When choosing a specific model of a gasoline trimmer, it is necessary to take into account its technical characteristics. So, low-power devices are equipped with reels with fishing line

On more resourceful and powerful models, knives and cutters can be used as cutting elements.

User’s manual

Particular attention should be paid to how to correctly carry out the first start-up and running-in of a gasoline mower. Competent actions will maximize the life of the trimmer and reduce the cost of its maintenance and repair.

Before starting the device for the first time, you will need to carry out several preparatory steps. Their list includes a visual assessment of the condition of the gearbox and the preparation of a high-quality fuel mixture, taking into account which oil should be filled in accordance with the manufacturer’s instructions and recommendations.

It is on the composition of the fuel that experts and experienced owners of gasoline trimmers recommend focusing attention. In situations with two-stroke engines, unlike four-stroke engines, the components will be gasoline and oil.

The proportions are indicated in the corresponding instructions attached to the technique, or on the labels of fuels and lubricants. The annotations, among other things, indicate the type of fuel and engine oil recommended by the developers.

After all the trimmer assemblies have been inspected and the fuel has been properly prepared, you can proceed directly to starting it and then running in the internal combustion engine. This process includes the following steps:

the lawnmower must be positioned horizontally on the most level surface;
the lever controlling the air damper is moved to the closed position;
using a primer, fuel is pumped to the carburetor (a few movements are enough);
the ignition is switched on with the appropriate switch;
the starting cord should be pulled as smoothly as possible until resistance is felt;
the device is launched with several sharp jerks of the cord;
after the engine has started, open the air supply.

In some situations, the trimmer may not start or stall right after starting. In such cases, it is necessary to slightly open the air supply to the carburetor and try again. After a positive result, let the motor run for at least 5 minutes in idle mode.

Using the lever, the air supply should be set so that the line spool or the knives remain stationary. After the engine has completely warmed up, the throttle is opened by moving the said lever to the position marked with the ON icon, and the gas regulator is pressed halfway for 20-30 seconds. In the next step, the trigger is released and the trimmer will idle for approximately 40 seconds. Such manipulations are repeated for 10-15 minutes, after which it is necessary to take a 20-minute break.

By repeating the above steps, further running-in of the internal combustion engine of a gasoline mower is carried out. The next stage is the gearbox running-in, for which you will need to select the appropriate area with soft grass. The latter is mown for 5-10 minutes with periodic podgazovki (1/2. 2/3 of the maximum speed). This cycle is repeated several times with an interval of 20-25 minutes.

Sooner or later, trimmer owners have to deal with the need to change the line. This is an integral part of the operation of such equipment. There are several ways to update the cutter in question. The simplest option provides for the following manipulations:

remove the head from the trimmer and clean it thoroughly;
unwind the required length of the fishing line (2-3 meters is recommended) and bite it off with pliers;
bend the line so that one end is 15 cm longer than the other;
put the bend on the spike located between the grooves of the coil;
wind the fishing line simultaneously in two directions, temporarily fixing it in the grooves (the direction of winding is indicated by the arrow);
thread the ends through special holes in the lid;
insert the spool of new line into place and snap into place.

Often, when using Stihl lawn mowers, it may be necessary to adjust the carburetor. If you have the appropriate knowledge and skills, you can do it yourself. At the preparatory stage, you will need to thoroughly rinse the air filter. It should be noted that it is highly recommended to do this every ten hours of mower operation.

Adjustment is carried out by three screws, one of which is responsible for the fuel supply. It is twisted until the internal combustion engine starts to stall. Then the screw should be unscrewed by a quarter of a turn (if the motor has stalled, then by 1/2). After starting the trimmer, continue to unscrew the same screw until the internal combustion engine starts to work stably at increased speeds.

Benzotrimer (moto mower) carburetor repair does not work does not develop speed. loss of power

In this case, the lawn mower will stall at idle speed. lawn mower does not develop momentum, the reason | funnydog.tv. Misalignment or incorrect carburetor adjustment can lead to dilemmas with the power system.

Vibrations that occur during the operation of the lawn mowers can lead to misalignment.

Incorrect adjustment of lawn mowers can be corrected by simply adjusting it in accordance with the requirements indicated in the annotation for use.

In addition, from time to time, gasoline trimmers may stall due to the fact that the valve located in the gas tank cap is simply clogged or stuck.

To find out, try using a scythe by loosening the gas cap.

If the device works properly in this mode, clean the valve.

over, the lawn mower can stall due to the disgusting flow of fuel into the carburetor.

Why, then, does the device start, you ask?

Cause
this consists in the fact that at first the fuel gradually runs into the carburetor and it is enough to work at an overestimated power.

But then it is produced and at huge speeds the engine starts to stall.

As for the carburetor, there may also be a discrepancy in the fact that its body is very tight.

The premise that the lawn mower stalls at high rpm
on gas, there may also be air leaks.

We are talking about the likely presence of a place through which air can pass during the heating of the motor.

In addition to everything else, be sure to check the fuel inlet hose. The trimmer does not develop speed. One of the reasons. The problem may lie in the fact that it is weakly adhered or, in general, cracked.

These are the main reasons why a lawn mower can stall.

Features and best models

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 lawn mower is perfect for decorating shrubs, giving them a certain artistic image and texture. Lawn Mower Does Not Develop RPM Reason 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 equipment.

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 of petrol hand-held lawn mowers and trimmers, it will also help you make the right purchase, which you will not regret.

The professional trimmers include Stihl FS 130 and FS 250. Let’s consider the characteristics and properties using the example of several mowers, in particular FS 38, FS 70 and FS 130.

See the features of the device on video.

Sources:

http://kartoska.ru/trimmer-stil-ne-razvivaet-oboroty/

Grass Trimmer develop, does, stihl, trimmer