Trimmer Won’T Start On Hot Cause

Eliminating the reasons why the lawn mower won’t start

The fuel mixture must be prepared with the exact proportions of gasoline and oil. In this case, you must not use another brand of fuel. To exclude the ingress of dirt, gasoline must settle in glass or metal containers for 2 days. Do not use plastic utensils for storing fuel. Measure the oil accurately with a medical syringe without a needle. Use only freshly prepared mixture. Do NOT leave used fuel in the tank. If the engine is naughty, the lawn mower stalls, when you press the gas, the fuel may be to blame.

Checking the ignition system, if the lawn mower does not start, is carried out sequentially:

  • The removed candle will be cleaned of carbon deposits and dirt, dried, set a gap of 1 mm;
  • Connect to the high-voltage wire and check for Spark by pulling the starter several times;
  • In the absence of a spark, check the high-voltage wire for integrity;
  • Replace the candle;
  • Dry the candle channel;
  • At the same time the operation of the ignition coil is checked, it is faulty if the working plug does NOT spark.

It is in the event of a malfunction of the ignition coil of the lawn mower Does not start up hot, stalls, works intermittently.

Cleaning or replacing the air and fuel filter will ensure the proper consumption of ingredients entering the carburetor. The air filter can be washed in soapy water or replaced. If nylon is used, it is washed, the porous felt filler is replaced. Change the fuel filter carefully. Do not leave the intake port open. Whether it is necessary to replace the air filter can be determined if the engine starts with the air cleaner removed. Whether it is necessary to change the grid for fuel supply, if the lawn mower does not start, a dry candle will tell.

Breather, gas tank air inlet. If it becomes clogged, a vacuum is created in the tank and the mixture does NOT enter the carburetor. The hole can be blown out with air or cleaned with a needle. Clean the exhaust duct, remove the anti-spark screen of the muffler.

Adjustment and tuning of the carburetor

The maximum and minimum engine speed, smooth idle speed are regulated by the carburetor. Here are the amounts of fuel mixture and air supplied, their ratio depends on the steady operation of the lawn mower. Lawn mower Will not start if the carburetor is incorrectly adjusted. The procedure for adjusting the device for supplying fuel at low speed (L), high speed (H) and idle (T) is regulated by the screws of the same name:

  • The chainsaw should run for at least 10 minutes, since the adjustment is carried out hot.
  • Screw H is turned smoothly to maximum speed, then turned by ¼, counterclockwise, reducing the speed of rotation of the engine shaft.
  • The idle speed is adjusted with the screw T, ensuring that the scythe does NOT rotate.
  • The screw L is adjusted, at first opening the maximum throttle, and then smoothly reducing the speed to stable minimum.

After adjustment, a working carburetor with cleaned filters and a checked ignition must ensure the engine is running. In the event of a carburetor malfunction, after repairing it, you will need to adjust the feed system again before starting the lawn mower.

Rare breakdowns that interfere with the operation of lawn mowers can be:

  • Rewind spring malfunction;
  • Broken or stuck starter pulley;
  • Faulty starter assembly.

The most important malfunction, the elimination of which is associated with replacing the engine, may be the failure of the engine piston group. The cost of repairs will cost about 70% of the cost of the product. Understanding the reasons why the lawn mower won’t start will help:

No matter how confused, if the lawn mower does not start

Troubleshooting

  • Engine failure (piston wear, bearing failure, crankcase cracked)
  • Malfunction of the fuel mixture supply. clogged pores of the air filter or carburetor malfunction;
  • The ignition system does not work;
  • Mechanical malfunction. leaking hoses, broken wires under the braid, ruptured tubes.

The user first needs to check if there is fuel in the tank. The launch is carried out in accordance with the annotation, put the dust on its side. Set the air damper to the “closed” position, pump up fuel, turn on the ignition and make 3-4 sharp jerks with the starter. If the engine is running, open the air damper. The lawn mower does not start. we repeat the operations with a slightly open air damper.

If the launch fails, we start looking for the reason for the failure:

  • Check fuel quality;
  • Make sure that the candle is working and the candle channel is clean;
  • Check the cleanliness of the air filter;
  • Make sure the fuel filter is not clogged;
  • Check the cleanliness of the breather;
  • Cleans the outlet.

complex causes will be found during the diagnosis of malfunctions leading to overhaul of the carburetor. Such reasons include clogging of the internal channels of the carburetor, wear of the gasket on it and a violation of the tightness of the internal Holloway with a loss of vacuum. Do-it-yourself lawn mowers repair, if it won’t start, will take patience.

Taking proper care of your chainsaw

There are unnecessary phrases in the operating instructions, everything that is offered is aimed at trouble-free operation of lawn mowers. Cleaning of all parts after each work cycle helps to easily remove non-hardened residues and dirt. You need to clean only the cooled nodes. This technique contributes to the quality of air cooling of the engine and gearbox.

For refueling, you must use fuel with the oil recommended in the instructions. If the combustible mixture is left in the fuel tank, the oil will float up and, when starting, will land on the damper, impairing its adjustment. The mixture can sediment and clog the fuel supply to the carburetor.

It is impossible, it is dangerous for the tool and the health of the mower, to use a metal cable instead of a fishing line. It cuts more efficiently, but the load on the gearbox and engine increases. A piece of wire that has been worn down flies at the speed of a bullet during separation. Effective mowing can lead to early wear of the engine piston group. For more efficient mowing, it is suggested to use the “star” line profile.

Injection power unit

With a carburetor engine, everything is very clear, but in the case of an injector, it will be necessary to tinker a lot. First of all, it is recommended to check the temperature sensor of the cooling system. It is because of incorrect data that the electronic engine control unit can disrupt the fuel supply and create a lean mixture.

The next place to look for a fault is the injectors. It is the defective fuel injection that can lead to the fact that the engine will start poorly Not only on a hot engine, but also on a cold one. To check the elements, you need to dismantle them from the car, and then check on a special stand.

It is also worth paying attention to the fact that there may be a rupture of the membrane of the fuel supply regulator. As a result, gasoline enters the intake manifold, which leads to an enrichment of the fuel mixture. In turn, the over-enriched mixture is difficult to ignite, and in most cases it does not burn at all.

But, for an injection motor, these are not all the reasons. Previously, the most common were considered, but now it is worth considering the less common causes. Let’s start with the fact that the fuel pump check valve may fail, which will pump fuel back and after turning off the engine until the gasoline is restarted into the system.

Also, gauges and gauges can affect motor re-hot start. So, failure of the following Meter can make it difficult to start the engine hot:

  • Crankshaft position sensor. Incorrect measurement of the crankshaft position leads to the fact that the data entering the electronic engine control unit is NOT reliable, and, accordingly, the normal supply of fuel to the combustion chambers will be disrupted.
  • Mass air flow sensor. If this meter fails, then air can enter in large quantities, which leads to an incorrect air-fuel ratio. In turn, this becomes a prerequisite for poor engine start.
  • Idling sensor. This meter is involved in starting and primary operation of the engine, and therefore its failure makes it difficult not only to start the power unit, but also to idle it.
  • High voltage wires. On an injection motor, it is quite difficult to identify a malfunction of high-voltage wires, since they indirectly relate to many malfunctions. But checking the elements is quite simple. To carry out diagnostic operations, it is necessary to dismantle the elements from the vehicle and ring each element with a tester. Resistance should be around 5 ohms.

Another significant prerequisite for a poor start of an injection vehicle is the failure of the software of the electronic engine control unit. To determine the malfunction, you will have to connect directly to the on-board computer and conduct a full diagnosis. If any faults are found, it is worth eliminating them.

Many motorists are trying to fix the problem on their own. This is not recommended, since you can only harm. As practice shows, it is worth contacting professionals, who quickly classify the malfunction and eliminate it.

Motor will not start when hot

Many motorists have encountered this effect. a heated engine does not start. For different types of power units, this problem will be classified in different ways, and the fault should be looked for in different places.

Diesel

For a diesel engine, a high-pressure fuel pump is the primary prerequisite. Often the cause of the malfunction is quite simple. failure of the oil seals and bushings. In this case, routine site maintenance will help. On the other hand, the reason may lie in the breakdown of the plunger pair, which in fact leads to a major overhaul of the element.

As for injection engines, and for a diesel power unit, a malfunction of the engine control unit disrupts the operation of all systems. To fix the problem, you will have to connect to the motor and carry out repair and diagnostic operations.

Carburetor motor

To begin with, let’s take a look at why the carburetor engine does not start hot. In this case, the reasons are quite simple, but not clear to many owners of such vehicles. To be precise, this effect occurs mainly during hot summer periods.

Explain why a carburetor motor can, Will not start when the motor is heated. Since the carburetor does not have autonomous cooling, then after the power unit stops working, the unit begins to heat up strongly from the red-hot engine. As a result, the existing fuel in the float chamber evaporates and forms air s. To eliminate the malfunction, press the gas pedal once all the way. This will help squeeze out the air.

The second prerequisite for such an effect on carburetor engines is the filling of spark plugs. So that the engine is envy, many motorists press the gas pedal several times to supply fuel. At the same time, no one thinks that a mixture is being enriched, which is already rich.

Conclusion

Find the cause of the malfunction. the engine does not start up hot, you can do it yourself, or you can contact a car service. It is easy enough to do it on carburetor engines. Much more difficult. for the injector and diesel. It is not always possible to eliminate the malfunction on your own, therefore it is recommended to contact a car service to professional specialists.

Why does a warm engine stall

Some motorists are faced with a situation when an already running and warmed-up engine suddenly stalls. over, this happens after the sensor has recorded a set of normal operating temperature. There may be several reasons for this. Next, we will consider them in more detail, and also indicate what needs to be done in this or that case.

  • Poor quality fuel. This situation is typical, for example, if you drive away from the gas station, and after a short period of time the engine starts to “cough”, the car jerks and stalls. The way out here is obvious. drain the low-quality fuel, purge the fuel system and replace the fuel filter. It is also advisable to replace the candles, but if they are new, you can do with blowing them. Naturally, it is not worth visiting such a gas station in the future, and if you have saved the check, then you can go there and make a claim as fuel.
  • Fuel filter. With a stalling engine, you should also check the condition of the fuel filter. And if, according to the regulations, it is already necessary to replace it, then you need to do this, regardless of whether it is clogged or not yet.
  • Air filter. The situation is similar here. The engine can become “bungy” with the rich mixture and stall soon after starting. Check its condition and replace if necessary. By the way, this way you can also reduce fuel consumption.
  • Gasoline pump. If it does not work at full capacity, then the engine will receive less fuel, and accordingly, after a while it will stall.
  • Generator. If it is completely or partially out of order, then it stopped charging the battery. The driver may NOT immediately notice this fact, start the engine and drive. However, he will go only as long as the battery pack is not completely discharged. Unfortunately, it will NOT work to start the engine again. In some cases, you can try to tighten the alternator belt. If this procedure does not help, you need to call a tow truck or call your friends to drag your car to the garage or service station.

Try to monitor the normal condition of the above nodes and mechanisms. Even minor breakdowns, if they are NOT eliminated in time, can develop into big problems, which will turn out to be expensive and difficult repairs for you.

It turns bad on hot

With the arrival of hot days, more and more drivers are faced with the problem of a poor engine start on a hot one, after a few minutes of parking. over, this is a problem not only of carburetor engines. a situation when it does not start up hot can wait for both the owners of cars with an injection engine and diesel cars. Only the reasons are different for everyone. Here we will try to collect them and identify the most common.

When it starts badly on a hot diesel engine

Unfortunately, diesel engines can sometimes fail to start hot. The most common causes of this phenomenon are malfunctions of the following nodes:

  • Coolant sensor. Here the situation is similar to what was described in the previous section. The sensor may fail and, accordingly, transmit incorrect information to the ECU.
  • Crankshaft position sensor. The situation is similar to an injection engine.
  • Mass air flow sensor. Similarly.
  • High pressure fuel pump. In particular, this can happen due to significant wear of the bushings and the pump drive shaft seal. Air enters the pump from under the stuffing box, which makes it impossible to gain operating pressure in the pre-plunger chamber.
  • Diesel engine idle system.
  • Fuel pressure control.
  • Ignition module.

Now we will try to summarize the information provided so that it would be easier for you to find the cause of the breakdown if it happened to your car.

Plunger pair of injection pump

Top 3 Reasons for Bad Hot Start

So, according to statistics, the main reasons for poor engine start after idle at high temperatures are:

  • The enriched fuel mixture, which is formed due to low-quality gasoline (its light fractions evaporate, and a kind of “gasoline fog” is obtained).
  • Defective coolant sensor. At high ambient temperatures, there is a possibility of its incorrect operation.
  • Defective ignition. It may be incorrectly set or there are problems with the ignition switch.

We will also give you a table where we tried to visually show which components can cause problems, and what needs to be checked in engines of different types.

Types of engines and their typical causescarburetorinjectorDiesel
Low-quality fuel, evaporation of its light fractions
Defective coolant sensor
Crankshaft position sensor
Mass air flow sensor
fuel injectors
fuel pump
High pressure fuel pump
Idle speed regulator
Fuel pressure control
Diesel idle system
ignition module

When Won’t Start On A Hot Carburetor Engine

Why is it bad to start hot and what to do

The reasons why the carburetor does not start well on a hot one are more or less clear, here the volatility of gasoline is mainly to blame. The bottom line is that when the engine warms up to operating temperature, the carburetor also heats up, and after turning off, within 10-15 minutes, the fuel begins to evaporate, so it is difficult to start the car.

Pressing the gas pedal to the floor and purging the fuel system will help start a hot engine in such a situation, but no longer than 10-15 seconds, since the fuel can fill the candles. If the question concerns “Zhiguli”, then the fuel pump may also be to blame, since the “Zhiguli” probe do NOT like heat very much and sometimes refuse to work at all when overheated.

When the injection engine does not start

Since an injection engine is somewhat more complicated than a carburetor one, there will be more reasons why such a motor will not start. In particular, they may be malfunctions of the following components and mechanisms:

  • Coolant temperature sensor (coolant). In hot weather, it can fail and give incorrect information to the ECU, in particular, that the coolant temperature is above normal.
  • Crankshaft position sensor (DPKV). Its failure will lead to incorrect operation of the ECU, which in turn will prevent the engine from starting.
  • Mass air flow sensor (DMRV). In hot weather, the sensor may not cope with the tasks assigned to it, since the temperature difference between the incoming and outgoing air masses will be insignificant. In addition, there is always the possibility of its partial or complete failure.
  • Fuel injectors. Here the situation is similar with a carburetor engine. The fine fraction of gasoline evaporates at high temperatures, forming a rich fuel mixture. Accordingly, the engine cannot start normally.
  • Fuel pump. In particular, it is necessary to check the operation of its check valve.
  • Idle speed regulator (IAC).
  • Fuel pressure control.
  • Ignition module.

Next, let’s move on to considering the possible causes of poor hot start in cars with diesel engines.

Conclusion

The first thing to do in order for the engine to start up normally on hot is to refuel at proven gas stations, and also monitor the state of the fuel system of your car. If, even after a short period of inactivity in the heat, the engine does NOT start, then first open the throttle valve (press the accelerator pedal) or Remove the filter cover and leave it open for a couple of minutes. During this time, the evaporated gasoline will evaporate and you can start the engine normally. If such a procedure did not help, then it is necessary to perform troubleshooting among the components and mechanisms described above.

Why do not turn the starter on hot

There can be 5 reasons why the starter does not turn hot, and almost all of them are characteristic of cars with high mileage.

  • Reduced bushing clearance. If bushings or bearings with a slightly increased diameter were installed during the next repair of the starter, then when heated, the gaps between the moving parts decrease, which can lead to wedging of the starter shaft. A similar situation is observed when regular bushings wear out. In this case, the rotor skews and begins to touch the permanent magnets.
  • Deterioration of contacts in the heat. A bad (loose) contact heats up by itself, and if this happens at an elevated temperature, then insufficient current flows through it, or the contact can completely burn out. Often there are problems with the leadership from the ignition switch to the starter (oxides) or poor mass from the battery to the starter. There may also be problems in the contact group of the ignition switch.
  • Decrease in winding resistance. With an increase in temperature, the value of the resistance of the stator or rotor winding on the starter can significantly sink, especially the unit is already old. This can lead to a decrease in the electromotive force, and, accordingly, the starter will turn badly or not turn at all.
  • “Pyatak” on retractor relays. Relevant for VAZ “classic” cars. In them, in the retractor relays, over time, the so-called “penny”. closing contacts, burn out significantly. They burn on their own, with use, however, at high temperatures, the contact quality deteriorates even more.
  • Dirty rotor. Over time, the starter armature becomes dirty from brushes and from natural causes. Accordingly, his electrical contact worsens, including he may become attached.

How to start the engine if the starter does not start hot

When the starter does not turn on hot, but you need to go, there are a couple of emergency methods for starting the starter. They consist in forcibly closing the starter contacts directly bypassing the ignition switch circuit. They will work only in case of problems with the retractor, contacts and insignificant wear of the bushings, for the second reasons you will have to wait for it to cool.

Location of Starter Terminals

The first, and most often used, is to close the contacts with a screwdriver or other metal object. When the ignition is turned on, the contacts on the starter housing are simply closed. The contacts are located on the outside of the starter housing, wires fit to them. You need to close the terminals from the battery (power wire, 12 Volts) and the terminals of the starter motor start. It is impossible to touch the ignition terminals, just as it is impossible to short out 12 V to the starter housing!

The second method implies preliminary preparation, it is used when the problem is known, but there is no opportunity or desire to deal with it. A two-wire cable and a normally open electrical button can be used. Connect two cores at one end of the wire to the starter contacts, and then lay the cable in the engine compartment so that its other end comes out somewhere under the “torpedo” to the control panel. Connect the two second ends of the wires to the button. With its help, after turning on the ignition, you can remotely close the contacts of the starter to start it.

What to do if you do not turn the starter on a hot engine

If the starter cannot turn the engine hot, then you need to dismantle it and check it. The diagnostic algorithm will be as follows:

“Pyatak” of the pull-in relay

  • Check bushings. If the bushings are significantly worn out and play appears, or vice versa, the starter shaft does not spin well because of them, then the bushings must be replaced. When choosing them, be sure to take into account the size recommended by the manufacturer.
  • Inspect electrical contacts. It is imperative to check all electrical connections and wires. If there are poor-quality contacts, tighten them, use a cleaner. Particular attention should be paid to the contacts on the ground, in the ignition switch and the terminal on the retractor. On VAZs, the cross-section of the wire from the battery is often enough (both mass and positive) or rotates the power cable from the battery to the starter. Measuring the voltage at the starter (retractor bolts), must be at least 13.5V.
  • Check stator and rotor windings. This is done using an electronic multimeter, switching to ohmmeter mode. It is better to check at different states of the engine, for a cold, in a semi-heated state and for a hot one, this will allow concepts of how much the value of the insulation resistance decreases. The critical value is 3.5. 10 kOhm. If it is lower, then you need to change the winding or the starter itself.
  • Check the nickle. To do this, it is necessary to remove the retractor relay from the starter and clean them thoroughly. If they are very burnt and cannot be restored, the retractor (or the entire starter) must be replaced. This is a common problem, why the retractor does NOT work on hot.
  • Make sure the cover, rotor and outer surface of the starter stator are clean. If they are dirty, they need to be cleaned. To begin with, it makes sense to use an air compressor, and after that he cleans with a brush and at the final stage. with sandpaper (400th or 800th).

Since all these procedures take time to remove and disassemble the unit, then as a temporary action, get out of the situation and still start a hot engine with such a starter problem will help emergency start methods.

Why does the starter not turn on hot

Most often, the starter does not turn on hot due to the fact that when heated, the bushings expand slightly in size, due to which the starter shaft wedges or does not turn at all. Also, the reasons that the starter does not start on hot is the deterioration of electrical contacts in the heat, contamination of its internal cavity, violation of the contact group, contamination of “Pyatakov”.

To troubleshoot, you need to get rid of the listed reasons. However, there are a couple of “popular” methods by which even a worn-out starter can be made to rotate with significant heating.

Breakdown causewhat to do
bushing wear replace
deterioration of contacts Clean, tighten, lubricate contacts
Reducing the insulation resistance of the stator / rotor winding Check insulation resistance. Eliminated by replacing the winding
Contact plates in solenoid relays Clean or replace “Pyatak”
Dirt and dust in the starter housing Clean interior, rotor / stator / contacts / cover
wear of brushes Clean the brushes or replace the brush assembly

The starter, before it will soon fail completely, begins not to turn the engine to hot. Also, problems with starting can occur with weak wires and contacts. Therefore, in order not to find yourself in such an unpleasant situation, you must follow him and egor wiring.

Filter check

Another common condition that the trimmer won’t start is if there is a blockage in the filter area. To confirm the guess, it is enough to dismantle the indicated block and try to start the unit without it. If the trimmer engine starts, you will most likely need to replace the air filter or at least thoroughly purge the old one. If there is heavy dirt on the surface of the filter element, a new mesh must be used. When resorting to such actions, do not leave the suction pipe completely without a filter. After all, haste in this case can lead to the need to repair the entire piston group of the engine unit.

Lawn mower Will not start when hot

If the mower was recently in operation and has not yet had time to cool down but does not want to start. press the gas trigger, pull the cord sharply several times, until the engine starts and only then the gas trigger is released. If enough time has passed and the lawn mower has cooled down, then it should start as if it were cold.
If the above methods did not help, the lawn mower did not start, then you should contact the service center.

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Reasons why the petrol trimmer won’t start

There are various reasons why the petrol trimmer won’t start:

  • The most common reason for a breakdown lies in the wrong choice of fuel. Often too thrifty users of the device fill the tank with something dubious, but NOT fuel with a normal octane number. Low-quality fuel that has been kept in a plastic Canister for a long time has a Terrifying effect. The device, which has lost its functionality for this reason, is sent to a complete bulkhead of the mechanism.
  • There is another common situation where the petrol trimmer starts and stalls. The problem could be the spark plug or air filter. In the first case, after inspection it will be found that the candle is “thrown”. This happens even if it has been recently wiped and dried. If everything is in order with the candle, then it is worth inspecting the air filter. Most often it turns out to be oily and needs to be replaced. If the device still refuses to start, then the problem lies either in a faulty ignition coil or in a clogged muffler.
  • The device can deteriorate Not only due to low-quality fuel, but also due to improper handling. For example, the fuel is checked, there is a spark, but the device will not start. The cause may be a candle filled with gasoline. To correct the situation, you just need to unscrew the candle, wipe it, dry it and check for operability.
  • Sometimes there is such a situation. the gasoline trimmer Will not start when the plug is dry. Then it is necessary to lubricate the threaded connection with gasoline. It should be slightly damp, otherwise nothing will catch fire.
  • Often, the owners of the device find themselves in a situation where the gasoline trimmer does not start well when hot. Some technicians claim that the problem lies in the ignition coil. Therefore, it must be changed and the device will work. But the problem may also be overheating of the engine, especially if a reinforced circular saw blade was attached to the device. To avoid such situations, you should carefully study the instructions, which specifically describe what types of disks can be installed.

The reasons when a new petrol trimmer won’t start can be the most commonplace, for example, Inability to use the device. If the user stores it correctly, uses high-quality fuel and does NOT leave gasoline in the trim tabs, then the unit will serve faithfully for a long time.

Adjustment and tuning of the carburetor

  • The chainsaw should run for at least 10 minutes, since the adjustment is carried out hot.
  • Screw H is turned smoothly to maximum revolutions, then turned by?, Counterclockwise, reducing the speed of rotation of the engine shaft.
  • The idle speed is adjusted with the screw T, ensuring that the scythe does NOT rotate.
  • The screw L is adjusted, at first opening the maximum throttle, and then smoothly reducing the speed to stable minimum.

After adjustment, a working carburetor with cleaned filters and a checked ignition must ensure the engine is running. In the event of a carburetor malfunction, after repairing it, you will need to adjust the feed system again before starting the lawn mower.

  • Rewind spring failure,
  • Broken or stuck starter pulley,
  • Faulty starter assembly.

The most important malfunction, the elimination of which is associated with replacing the engine, may be the failure of the engine piston group. The cost of repairs will cost about 70% of the cost of the product. Understanding the reasons why the lawn mower won’t start will help:

Troubleshooting strategy

Where to start troubleshooting if the trimmer won’t start? In situations where the tool stalls immediately after starting, it is worth inspecting the following components of the unit:

  • Fuel tank;
  • Spark plug;
  • Fuel and air filter;
  • Outlet channel;
  • Breather.

It is the breakdown of the above locations that most often leads to the fact that the trimmer does not start well. Let’s look at how to eliminate such troubles.

Trimmer Won’t start hot

Topic for Large Models in the Automobiles category; The question is: normal cold start, warm-up, etc. Ok, but it’s worth drowning out and after 5 minutes you will NOT start.

Troubleshooting

  • Engine failure (piston wear, bearing failure, crankcase cracked),
  • Fuel mixture malfunction. clogged air filter pores or carburetor malfunction,
  • The ignition system does not work,
  • Mechanical malfunction. leaking hoses, broken wires under the braid, ruptured tubes.

The lawn mower cannot work for a long time. The gearbox and engine will overheat. Mows Can be no more than 15 = 20 minutes, taking a five-minute break. On sultry noon, the operating time is cut in half. When mowing weeds, sedges, the working time is required.

If the launch fails, we start looking for the reason for the failure:

  • Check fuel quality,
  • Make sure that the candle is working and the candle channel is clean,
  • Check the cleanliness of the air filter,
  • Make sure the fuel filter is not clogged,
  • Check the cleanliness of the breather,
  • Cleans the outlet.

complex causes will be found during the diagnosis of malfunctions leading to overhaul of the carburetor. Such reasons include clogging of the internal channels of the carburetor, wear of the gasket on it and a violation of the tightness of the internal Holloway with a loss of vacuum. Do-it-yourself lawn mowers repair, if it won’t start, will take patience.

Trimmer Won'T Start On Hot Cause

Why won’t the petrol trimmer start? Causes and their elimination

In the near future, the gasoline trimmer acquired the status of the 1st of the main tools in the arsenal of summer residents. And this is logical, because a motorized scythe allows you to quickly put your personal plot in order. But from time to time it happens that the trimmer does not start on hot or even cool. In such situations, it is necessary to establish the cause of the malfunction without the help of others. Let’s figure out what to do if the trimmer won’t start. The reasons that most often lead to such troubles will be discussed below.

Lawn mower Will not start on a cold

When starting a cold engine, it is not recommended to press the gas. Tilting the mower so that the air filter is on top, press the fuel suction button 5-6 times, set the function switch lever to the “start” position, pull the cord several times until the engine starts. After a few seconds of engine running, disable the starting system.