Lawn mower heats up and stops. Why does the lawn trimmer heat up quickly??

Grass trimmer Stops at idle RPM Cause

Grass cutter, which has a gasoline drive. it is a useful thing for owners of household plots, lawns, and when the grass trimmer suddenly stops, the work of clearing the area of grass stops. The device itself is a fairly complex mechanism, so there are many different causes of its failure. The most common faults are listed in the service manual. Know the reasons why the grass trimmer stalls, it is necessary to effectively perform the repair of the device yourself.

Troubles with the chain saw, related to the fact that this device does not start, are classified in a certain way by specialists of service stations. They stand out faults with the following nodes of the mechanism:

  • engine, in which the piston and bearings can wear out or fail, crack the crankcase;
  • The fuel system, with possible filter clogging or carburetor problems;
  • mechanical damage to the wires, tubes, hoses;
  • The ignition circuit.

In order to correctly identify the node where the failure occurred, you need to pay attention to the circumstances under which the grass trimmer stalls.

the grass trimmer overheats and stops ~ WRCBUX.RU

Why does the gasoline grass trimmer heat up?

Suppose you do not start your trimmer for grass. In this case, you must first check whether there is enough fuel in the tank, and to assess the quality of fuel consistency. Only high-quality gasoline should be used for charging the motorized device. It is recommended to use fuel which brand is not lower than Ai-95.

Why the grass trimmer gasoline does not start? Causes and their elimination

In the near future, gasoline grass trimmer caught the status of the 1st of the main tools in the arsenal of dacha owners. Overheating and stalling. And the grass trimmer immediately throttles down when it. This is logical, because a motorized lawn trimmer allows you to quickly bring order to your lawn. But from time to time it happens that the grass trimmer does not start in hot and even in cool. In such situations, you need no help in finding the cause. Let’s find out what to do if the grass trimmer does not start. Prerequisites, which more often lead to such troubles, will be considered further.

Troubleshooting strategy

How to start troubleshooting, if the trimmer doesn’t start? In situations where the tool stalls immediately after starting, it is worth looking at the following parts of the machine:

Exactly the failure of the above-mentioned locations more often leads to the fact that bad starts trimmer for grass. Let’s look at how to remove such problems.

Checking the fuel mixture

Suppose you do not start the trimmer for grass. Not starting gasoline lawnmower. In this case, you must first check whether there is enough fuel in the tank, and to assess the quality of the fuel mixture. Only high-quality gasoline should be used to fill up the motorized unit. It is recommended to use fuel which brand is not lower than Ai-95. Lawn mower does not turn on video. Filling the grass trimmer with fuel of unknown origin, bought not at a gas station, is fraught with frequent malfunctions of the tool. This can cause damage to the cylinder-piston system. Repair in such a case often exceeds the cost of the device itself.

Why won’t the grass trimmer gasoline start?? It can also lead to this can be caused by improper preparation of the fuel mixture, which consists of oil and gasoline. The proportions in which these components are connected, are specified by the manufacturers in the operation manual of the grass trimmer. It is highly recommended not to prepare the fuel mixture in large quantities, that is, for the future. After all, if you save it for a long time, the loss of the defining properties of the substance occurs. Therefore, if the grass trimmer does not start, it is worth to drain the old fuel and use a freshly prepared fuel mixture.

lawnmower. Stops on hot. Possible Cause and Remedy.

I would like to point out right away that, unfortunately, this is not a carburetor. ( My site.

The lawnmower runs when cold, only warms up and shuts down

Remove the cylinder and see air leaking from the cylinder gasket.

Diagnose the spark plug passage

What to do if the fuel mixture used is fine, but still does not start the grass trimmer gasoline? The causes of mechanism failure may be due to excessive moisture in the spark plug passage. To make a diagnosis and fix the problem, you need to do the following:

  • Unscrew the spark plug. Wipe it thoroughly and then dry it.
  • Drain the excessive fuel in the chamber through the appropriate spark plug hole.
  • Clean the old spark plug, if there is soot on its surface. A normal nail file or nail file will do the job.
  • When replacing the element, adjust the gap of 1 mm. To check the parameter it is enough to place any coin in the gap.
  • Reassemble the functional unit.
  • Trying to start the grass trimmer.
See also  How to wind the line for the trimmer on the spool of the lawnmower

Why the Chinese lawnmower does not revolve?

Removed the cylinder and saw the leakage of air through the cylinder gasket.

lawn, mower, heats, stops, does, trimmer

A cold lawnmower only runs hot and then shuts down

Takozh: yak zalashtuvaty rabotat’ na zafiksovanyj gruzoo?

It is recommended to perform drying of the spark plug channel for at least half an hour. But it would never be a good idea to put it on fire. After all, heating of the spark plug can lead to its final damage. The petrol grass trimmer heats up and shuts down. What to do if the maintenance of the functional unit was performed in accordance with the above recommendations, but the grass trimmer does not start, there is a spark at the same time? In that case it is worth treating the threaded joints with gasoline. Lawn mower does not start when cold. There is no need to soak a lot of petrol in the latter. It should only be slightly moistened. You have to do this to secure the ignition. Because no matter how strong the spark plug gives a spark, in a completely dry chamber simply will not be something to ignite.

If even in this case, the grass trimmer does not start, it is worth evaluating the quality of the contact between the high-voltage wire and the spark plug. If there is no spark (if there is a reliable connection between the specified elements), most likely the problem is caused by a breakdown of the ignition unit. In this situation, you will have to turn to the services of craftsmen, who will perform reinstallation of the node.

Checking the filters

Another common reason for the grass trimmer not starting is a blockage in the filter area. To confirm the assumption, it is enough to remove the specified block and try to start the machine without it. If the grass trimmer engine started, most likely you will have to replace the air filter or at least perform a thorough purge of the old one. If there is abundant contamination on the surface of the filter element, it is necessary to use a new mesh. When resorting to such actions, you should not leave the suction pipe without filter at all. After all, a rush in this case can lead to the need to repair the entire piston group of the machine’s engine.

The lawn mower slows down at high engine speeds

During operation there is a situation when the unit speed does not increase, but decreases when the fuel mixture supply button is pressed. This error can be caused by:

  • Atmospheric air poisoning in the combustion chamber;
  • Malfunctions with fuel mixture circulation;
  • Clogging of the breathing tube in the fuel tank cap (clean the hole with a fine needle);
  • Incorrect carburetor adjustment.

If air is leaking while the internal combustion engine is running, the piping and gaskets in the fuel cell must be checked for leaks. Fuel mixture circulation problems can be solved by clearing blockages in the fuel pipes leading to the carburetor. If there is a vacuum in the tank and the fuel mixture does not get into the carburetor, it is enough to clean the breathing tube with a fine needle and blow it with air.

Lawn mower gets hot and stalls. Construction Portal

What to do when petrol grass trimmers don’t start?

Gasoline trimmer for grass. a surprisingly useful tool with which you can mow not only a small clearing in front of the house, but also a lawn of large. Elmos ept 26 grass trimmer.It’s starting to overheat. It’s still warming up like crazy. And what to do in this. Unfortunately, there is nothing endless in this world, and so you may encounter the fact that gasoline grass trimmers do not start.

Some causes

It often happens that the users of these kinds of machines are trying to “save money” by filling the tank is not a fuel with a regular octane number, and something obscure, which has almost ten years standing in a plastic canister.

The main thing is the fuel mixture!

In this case, the residual plastic dissolved in the brutal environment in the combustion chamber is so awful that without a complete overhaul of the mechanism for you do not work. But you’ll certainly always remember how to properly store fuel.

What, after all, to do when the fuel was exactly the same, there is a spark, but the trimmer for gasoline grass does not start? It may be that you just filled the spark plug with gasoline. In this case, you need to unscrew it, wipe it with an untampered cloth and discuss. By the way, it is not superfluous to check the spark plug itself for performance.

Properly perform a cold start!

Often trimmer for gasoline grass does not start after they tried to “put into operation” after long storage. Trouble with the start in this case is often justified by the wrong actions of the User.

See also  Which lawn mower is better with petrol or battery mower?

If you are faced with this particular phenomenon, then during a cool start should close the valve, then pump a small amount of fuel consistency in the carburetor. Then you pull the starter handle until you feel resistance, then sharply and vigorously start the grass trimmer.

Eliminate overheating on the chainsaw

For the sake of experience but a continuation of the test is yet to come.

lawn, mower, heats, stops, does, trimmer

lawnmower. Stops on hot. Possible cause and remedy.

I’ll tell you right away that unfortunately it’s not the carburetor. ( My page.

After a few jerks it will start and then stop, which is normal. Having put the choke in the working position, start the tool again and start working.


There are not only situations when gasoline grass trimmers do not start, but the cases when, after start-up they work for a couple of seconds and then immediately turn off. Inspect the spark plug again: if it is “covered” and the situation is repeated even after wiping and drying it, run to the “revision” of the air filter.

It’s probably quite greasy and needs to be replaced. If everything is normal with the filter, it may happen that the ignition coil has failed.

In the case where the grass trimmers gasoline are not started, and you have done all of the above, can be clogged muffler. It should be disassembled, burned on a burner, after which all the soot can be easily shaken out.

The carburetor again.

Even if your weed trimmer won’t start after such mockery, you can’t do without disassembling the carburetor. It’s very possible that a stuck needle in the carburetor is to blame. In any case disassembly and washing of this capricious mechanism will not prevent.

In general, when the trimmer for grass began to be capricious and sizzle, it is advisable to carry out a complete prevention: completely change the fuel mixture, try a different oil, as well as be sure to change the plug. My grass trimmer is heating up and oil is oozing out of the gearbox what should I do [answers 1]. Practice shows that in many cases it is cheap low-quality plugs which are to be blamed.

We looked at the most common reasons why the trimmer does not start. If it’s something more “exotic”, you can’t avoid a trip to the service center. You will surely find the smaller and more obvious breakdowns on your own.

A gasoline-powered grasshopper does not give you a cold start

It is not recommended that you pull the gas trigger when starting a cold engine. Tilt the brush so that the air filter is on top, press the fuel intake button 5-6 times, set the functional lever to the “start” position, pull the starter cord several times to start the engine. After a few seconds of engine operation, turn off the starting system.

The gasoline does not run hot

If the brush cutter has been running recently and is still hot but won’t start, squeeze the gas trigger, pull the starter cord briskly several times until the engine starts, and only then release the gas trigger. If much time has passed and the brush has cooled, it should be started as if it were cold. If the above methods did not help, the cleaner does not start, you should contact a service center.

  • Blog
  • About the service center
  • Brands are served
  • Diagnostics and repair prices
  • Delivery
  • Spare parts
  • Contact

Specialized service center “Agrotehservice”, Integrated warranty and after warranty service of gardening and municipal equipment from world manufacturers! We sell spare parts with delivery throughout Russia!

Gasoline grass mower. Useful thing for owners of homesteads, lawns, and when the grass trimmer suddenly jams, the work of cleaning the area from the grass stops. The device itself is a fairly complex mechanism, so there are many different causes of its failure. The most common problems are contained in the instruction manual. Know the reasons why the grass trimmer kiosk should be able to effectively repair the device yourself.

Necessary tools:

If the engine of the brushcutter refuses to start, then first of all you need to check the spark plug. If it is completely dry, it means that the fuel is not supplied to the combustion chamber and the cause of the carburetor. Immediately it is worth checking the spark plug and for a spark to rule it out of the cause on all fronts.

You can also make sure that the motor itself is in good working order. To do this, unscrewing the plug, you need to pour a syringe into the combustion chamber a few milliliters of gasoline. After that, the plug is screwed in and the lawnmower starts. If everything is okay with the engine, it will start for a few seconds. It’ll confirm that it makes sense to disassemble the carburetor.

lawn, mower, heats, stops, does, trimmer

Then the plastic protective cap is removed, together with the air filter. After that a Phillips screwdriver unscrew the 2 screws that hold the air damper and carburetor on the engine. Immediately tear off the fuel pipes.

At the side of the choke cap you need to unscrew 4 screws with a screwdriver and divide it into 2 halves. We’re interested in the half with the choke. There is a valve on the inside center.

See also  What does a small corner grinder look like. What are the corner grinder?

It often sticks, because after evaporation of gasoline, viscous oil that works like glue remains on it when not in use. To check it, you need to put a short thin tube and try to blow air through it. If it’s stuck, it can’t blow in any direction.

A stuck valve can be repaired with a match. Toothpicks are better not to use, because they are sharp and can hurt. Use a match to lightly press into the valve and loosen it. After you clean it with a match, it will blow out.

The fuel will be able to flow, so it can start. Cleaning the valve is not the cure-all for all brushcutters that won’t start after idle time, but it helps in 8 out of 10 cases. The other 20% is usually carburetor related as well, usually the needle.

Electric grass trimmer vibrates

Many mower users have noticed that after a while after starting the machine, it starts to vibrate a lot. Some trimmers, mainly the more expensive models, have an anti-vibration system in the form of shock absorbers between the motor and the shaft. But in some cases there is even no protection from severe vibration. The reason that there is a strong vibration in the trimmer may be a small amount or complete lack of lubrication on the hard or flexible shaft, which is located inside the boom of the machine.

Change the grease of the hard shaft is as follows:

  • unscrew the reducer, which is located at the bottom of the rod;
  • After removing the gearbox, you will see the end of the shaft, which must be pulled to remove the part;
  • after removing the shaft, it should be generously greased with a special grease “Shruz-4” or ordinary. “Lithol-24”;
  • Apply a small amount of grease to the shaft and spread it evenly over the entire length of the part, including the splines on the ends of the rod (if they have worked, the shaft will have to be replaced);
  • After lubricating, reinsert the shaft into the shaft and put the gearbox back in its place.

Lubricate the flexible shaft as follows:

  • Unscrew and remove the mowing head;
  • Remove the rod from the electric motor by unscrewing a couple of bolts;
  • pull the flexible cord out of the rod;
  • Lubricate the entire length of the cable.

It is done like this: first grease the end of the rope and then insert it into the rod, then as you move it inside the tube, apply the grease to the part and distribute it evenly on the surface. Then insert the flexible shaft rod into the electric motor and secure it.

If lubrication does not help and vibration continues to occur, the flexible shaft will need to be replaced.

Block: 4/6 | Number of characters: 1731

Why does the lawnmower start and stop??

the lawn mower starts and stops. Most likely, it is difficult or completely absent access to the fuel tank, so that it forms a zone of low pressure, which stops the engine receives the necessary amount of fuel and thus stops working. lawn mower stops at idle rpm.

If the lawnmower runs jerkily, the engine howls or stops altogether, it means the machine is clogged with grass. Use a sharp object like a scalpel or lady’s nail file to clean the lawn mower.

Rules of lawnmower operation and storage

To keep your lawn mower running well in the future, it needs to be stored in good conditions:

  • during operation carefully monitor the cooling system, clean the housing channels and ribs of the starter carefully and in time;
  • If necessary, use solvents, kerosene and other detergents for cleaning;
  • Do not clean the tool while it is hot. allow it to cool;
  • Always follow the instructions regarding the operation mode or you may overheat the engine;
  • If you do not plan to use the mower in the next month, the fuel mixture should be drained from the mower. к. Over time, it breaks down into heavy fractions, which will definitely clog the carburetor passages;
  • after draining the fuel, let the trimmer run at idle until it stops, this will help remove the remaining mixture completely.

Before winter storage, do the following steps:

  • completely disassemble the braid, rinse and clean all parts that you can;
  • Inspect the parts for damage, and if necessary, repair misalignments, rips, bends, and any other malfunctions;
  • Pour enough oil into the gearbox and clean the air filter;
  • you can partially disassemble the motor, flush, purge, and lubricate all moving parts;
  • To lubricate the piston, you need to unscrew the plug, lift the starter piston to its dead center, pour a little oil into the plug hole and twist the crankshaft a couple of times;
  • if you store the lawnmower out of the house, wrap the engine with an oiled rag.

Remember, the careful observance of the rules, will allow you to forget about the fact that the lawnmower starts badly for several seasons.

| Denial of responsibility | Contacts |RSS