Huter trimmer not picking up speed

Table of Contents:

The trimmer does not gain momentum – what to do

Any person who owns a summer cottage or land plot is well aware of the problems of dealing with excess vegetation. Now a trimmer has come to the rescue, which has successfully replaced the usual braid in this field. This unit is very convenient in operation, but it, like any mechanism, tends to fail due to difficult working conditions or incorrect operation. Situations when the trimmer does not pick up speed are quite common. To understand this problem, it is necessary to understand some aspects related to the operation of the apparatus..

Causes of Slow Trimmer RPM

If users complain about the trim tab that does not pick up speed, it means that it works fine at idle, and when you press the gas, it does not develop the necessary power. This can occur as a result of a long idle device without activity. These problems are typical for gasoline vehicles, including Husqvarna 128r, Stihl FS 38 and Hitachi of various modifications..

When working with the trimmer, you need to monitor its behavior all the time – a drop in speed and unusual noises signal a malfunction in the unit. Sometimes you give the gas, and the trimmer floats. In such cases, the work should be immediately suspended, the mechanism should be allowed to cool down and the search for possible problems should be started. They can be of a different nature, both a technological plan and external factors associated with the conditions and features of the operation of the apparatus..

huter, trimmer, picking, speed

technical issues

Lawn mowers technical problems mainly take place in the fuel supply and ignition systems. You can deal with them on your own..

  • When the hand mower won’t start or stalls, the problem may be with the spark plug. Dark carbon deposits indicate poor carburetor adjustment and poor gasoline quality..
  • A clogged fuel hose may be the cause of the trimmer not working correctly. Filters are also often clogged..
  • Another internal problem – the muffler is covered with carbon deposits. From this, the rpm of the trimmer drops dramatically. Exit – you need to clean the muffler.

Important! If the unit does not work due to engine breakdowns, serious problems can arise. In this case, only the destruction of the piston rings belongs to the malfunctions that can be eliminated by hand. For more serious problems with the motor, if there is no guarantee, you should be ready to visit the workshop.

External factors

Several factors not related to its breakdown affect the decrease in the speed of lawn mowers:

  • contamination of the filter due to the ingress of particles of dirt and dust;
  • use of low-quality fuel;
  • improperly prepared mixture (relevant for trimmers with two-stroke gasoline engines);
  • contamination of the muffler mesh with vegetation particles, soil elements and other objects.

In this case, in the second and third cases, carbon deposits form in the combustion chamber, and the carburetor elements become clogged..


This mechanism is an important part of the petrol trimmer. In order for the carburetor to work properly, several conditions must be met:

  • disassemble and clean it from time to time;
  • adjust the idle speed according to the instructions;
  • seek the help of the wizard when adjusting.

How to fix a Weed Eater when the head doesn’t spin

In the event of a breakdown of this unit, you can do its repair yourself, but only if you have certain knowledge.

Read more:  Gasoline Does Not Receive Into Carburetor Trimmer

One of the reasons for poor carburetor performance is a loose cable. To eliminate the problem, you first need to disassemble the entire assembly, and then, after thoroughly rinsing all the parts, lubricate and tighten the cable, but not very much, so as not to stretch.

Important! Other malfunctions can also adversely affect the operation of the carburetor: failure of the inlet needle, deformation of the membrane, wear of the adjusting lever, contamination of the control cavity, wear of flaps.

When to contact the workshop

If the device is under warranty, at the first signs of incorrect operation it can be safely taken to a specialized workshop. The repair will be done free of charge, regardless of the nature of the damage, if it happened not through the fault of the owner. In case of engine breakdowns, a person who is ignorant of technology is better off immediately contacting a specialist. In any case, the severity of the unit malfunction is determined by the user..

Summarize. Both gasoline and electric trimmers are built to last years of dependable performance. Most of the problems described above occur due to the owner’s insufficient attention to his assistant. Subject to strict adherence to the manufacturer’s requirements and regular maintenance, the hand mower will work rhythmically and without interruption..

Diagnostics and elimination of gas engine problems

Before proceeding with the repair of a particular unit (part), it is necessary to determine the nature of the malfunction. Step-by-step diagnostics and troubleshooting – more.

Video – fixing the problem on a car with a carburetor:

Video – fixing the problem on a car with a carburetor:


Trimmer BLUNTS carburetor adjustment.

For even more information on repair and tool selection on our website www.LookTool.Ru, visit, we are glad to everyone.

Idle ones do not work

  • failure of the idle sensor;
  • clogged throttle;
  • malfunction of the throttle position sensor;
  • dirty injector or carburetor

The grounds for a breakdown can be completely different, therefore, when eliminating them, you will have to operate with all sorts of actions and techniques. If you have a considerable driving experience behind you, and you know the features of the car like the back of your hand, regardless of the model, then troubleshooting this kind of problem will not give you any problems. And all because such breakdowns are not difficult or serious. Why the trimmer stalls on the adjusted carburetor for idling. It follows that you can get the car working without any help. Well, if the level of awareness or lack of free time does not give you the opportunity to eliminate all defects on your own, it is better to seek help from knowledgeable people who can save you from unpleasant moments as soon as possible..


One of the reasons why the chainsaw does not develop speed when you press the gas, but rather stall, is a malfunction of the carburetor. Let’s say the Stihl 180 saw worked properly, and then it was put on for a long time and did not use it. After it was started, and at idle, it works well, and when you press the gas, it can stall. when trying to work, when the air damper is opened by 1 mm, I do not think that the trimmer. Why stalls? The reason is a sticky carburetor injector valve. Of course, this is not 100%, but the likelihood of such a malfunction is high. We recommend reading an article about the device and repair of the Stihl 180 carburetor.

Gas meter (China) Idling adjustment, the coil spins immediately when starting at idle

A Chinese benzo trimmer was brought in for repair (they said it spins in the reverse direction. We do not have time to start how.

In addition, from time to time, 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..

Moreover, the lawn mower can stall due to the disgusting flow of fuel into the carburetor. And nevertheless, the repair i.e. Works normally at low speed. Why then does the device start up, you ask? The reason for this is that at first, the fuel gradually runs into the carburetor and there is enough fuel to operate at an overestimated power. the lawn mower does not idle. 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.

Air leaks may also be a prerequisite for the lawnmower to stall at high rpm on gas. 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 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.

Chinese lawn mower NO IDLE, -PROVISION OF CARBURETOR ADAPTER / BC330 repair

When it’s hard to start a lawn mower, it is worth paying little attention to the fastening of the carburetor, adapter and their seals

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

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.

Moreover, the lawn mower can stall due to poor fuel flow to the carburetor.

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

The reason for this is that at first the fuel gradually runs into the carburetor and it is enough to work at increased power..

However, then it is produced and at high speeds the engine starts to stall..

As for the carburetor, the problem here may also be that its body is too tight..

Air leaks can also be the reason why the lawn mower stalls at high RPM on gas..

This refers to the possible presence of a place through which air can pass during the heating of the engine..

Be sure to check the fuel inlet hose, among other things. For some reason, it is somewhere from 5 times, at idle it works and the trimmer stern ggt950b does not rotate. The problem may be that it does not hold well or is cracked altogether..

These are the main reasons why

What could have broken

Problems with the lawn mower due to the fact that this device does not start are classified in a certain way by service specialists. They highlight faults with the following components of the mechanism:

  • an engine in which the piston and bearings may wear out or fail, crack the crankcase;
  • the fuel supply system, while the filter may be clogged or problems with the carburetor;
  • mechanical damage to wires, tubes, hoses;
  • ignition circuit.

To correctly determine the node where the breakdown occurred, you need to pay attention to the circumstances under which the trimmer stalls.

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..

Terms of use

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?

If you put a cable instead of a fishing line, without the possibility of releasing it, securely fixing the two ends of the cable and cutting them off by welding (a drop of melted metal keeps the cable from unraveling). Such a tool “knocks down” the grass at a time. Cuts off shoots up to about a finger thick. Not as afraid of stones as a disc. There is, however, a problem: when worn, pieces of cable thread break off, and these twisted wires remain in place of the mowing. Stepping on them can cause injury..

But the pieces of the cable left on the field are half the trouble. The fishing line, breaking off, weakens the dynamic shocks on the transmission and the engine, the cable does not give such an opportunity. The result is rapid wear on lawn mowers.

Why is the Chinese lawn mower not picking up speed??

The trimmer does not gain momentum, a very frequent discrepancy and of course does not always have the usual solution..

Possible causes of a problem with electric streamers

When using the trimmer, on which the electric motor is installed, problems with a set of revolutions also occur. But they are caused by completely different problems, compared to the fuel streamers. The electric motor does not develop the required rotation speed in such cases:

  • if the voltage in the supply network is lower than the rated value for the electric motor by more than 10%;
  • in case of malfunctions in the soft start system (if this unit is installed);
  • when there are problems with the brush assembly;
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Electric scythe brush unit

  • in the event of a burn out of the engine windings;
  • if wedging of rotating parts occurs.

To eliminate the problem with the voltage, you need to check its value with a multimeter or tester in the outlet from which the electric power is taken. If it is less than the minimum permissible value, then to increase it, you will need to turn off all electrical appliances or install a stabilizer.

A prerequisite for the normal operation of the trimmer is the use of an extension cord with a cross-section of conductors corresponding to the power of the streamer motor..

To repair the soft starter, you will need to have the appropriate knowledge in electronics, so it is better to contact a service center. There they will decide on its maintainability or the need to replace it. You can check the button yourself or find the block diagram and try to figure it out.

Soft starter block

The brushes may wear out and contact will be lost as a result, causing the motor to stall. The brushes are easy to replace. The features of the process are determined by the lawn mower model used. Along the way, you will also need to clean all contacting surfaces..

If the windings are burnt, if you continue to mow grass or bushes, the electric motor will quickly burn out. This will be accompanied by the appearance of a burning smell, up to the melting of individual parts. You will need to replace the electric motor.

Wedging of rotating parts occurs for various reasons. To identify and eliminate them, you will need to sort out the drive unit. There are models in which the number of revolutions is automatically adjusted depending on the load, increasing with its increase – at idle, the rotation speed drops.

The video shows an algorithm of actions to identify the most common reasons why the trimmer does not pick up the required speed:

About the manufacturer

The history of this German brand begins in 1926. At the initial stages of its own development, the company was engaged in the production and sale of various devices for washing and steam machines. It all started, like many companies, with a small production and a 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 rapid pace, constantly introducing new tools, which gives it the opportunity to enter the international market. lawn mower Stihl And already in 1931 the first permanent deliveries of products to Russia were organized.

Stihl device

At the moment, 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 completely understandable, because the range of the company is impressive: motor-drills, gasoline sprayers, mowers, gasoline trimmers, chainsaws and almost everything else. I would like to note that Shtil chainsaws are very popular due to their own functionality and applicable cost..

You bought yourself a new petrol trimmer and immediately got into trouble with it. It starts very badly. If you mow a little, and then turn it off, then turning it on “hot” is an even bigger problem than “cold”. What to do with it, I don’t know how to get it right?

The instruction for the lawn mowers plant sounds like this:

Switch on ignition.

Pump up fuel with a silicone button (primer) located on the bottom of the carburetor. Pressing must be done as much (or a little more) as written in the instructions, usually about 8-10.

Close air damper.

Lock the throttle lever with a stop button at high rpm.

Pull the starter handle 2-3 times. The engine should “grab”.

If the engine “grabs” and stalled, then you need to move the choke to the 1/2 position and try to start again. If the engine starts, then we release the gas and move the air damper to the “open” position. Getting started.

When performing fuel pumping manipulations, one should not be afraid to pour it over. If this happened, and, as they say, “filled the candle”, then you do not need to unscrew it, it is enough to move the air damper to the “open” position and, while holding full throttle, simultaneously turn the engine with the starter 2-4 times. After that, you can start the engine and get to work..

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.