The lawn mower will not start the candle is dry

the lawn mower starts and stalls. What to do?

There is a spark, and everything seems to be normal, but the lawn mower will not start, in such cases, you should check the air inlet valve to the fuel tank. A clogged valve leads to the creation of a vacuum in the tank, in which the carburetor does not receive enough gasoline, so the lawn mower will start, but then stall. To exclude this cause, you need to clean the valve and try to start the lawn mower with the tank cap not completely twisted.
2. If this does not start the mower, remove and clean the fuel filter and check all carburetor parts and then try to start. The lawn mower will not start again, the air filter is disconnected, try to start without it, if the mower starts up, the reason is in the air filter, replace it.

The lawn mower will not start or will start but stalls. What is the reason?

To understand this, you need to know the principle of operation of the unit as a whole. It also happens that, just bought, a new saw does not start, and the running around the service centers begins, in such cases it is recommended:

carefully read the instruction manual;
study in detail the method of first starting and running in lawn mowers;
try to understand the principle of the product;
how gasoline is pumped up and so on.

Causes of malfunctioning lawn mowers:

the quality of the gasoline is poor;
incorrect proportion of gasoline and oil;
clogging of the fine filter;
the spark was gone.

the lawn mower won’t start after winter

In such cases, the unit must be serviced. Remove the fuel system, including filters (air, fuel), disassemble the carburetor, clean and rinse each unit. Blow out the filters with air. Pay attention to fuel quality and octane number.

It should be borne in mind that products of such well-known companies as STIHL, Husgvarna and other brands will not run on cheap, low-octane gasoline.
Suitable fuel for them is from the AI ​​brand. 92 and higher from car gas stations and then from well-recommended ones, since there is also bad gasoline at gas stations. The use of high-octane and high-quality gasoline will determine how long the lawn mower will be used and how long it will last.

It is necessary to take into account one more fact that when the diluted fuel mixture is stored for a long time, its working qualities fall, which also leads to consequences in which the lawn mower does not start. Therefore, it should be diluted in portions, that is, the amount of the mixture that is produced at a time.
The operating instructions clearly describe and explain the mixing ratio of gasoline and oil. Strict observance of the correct proportions will at least save you from several questions, why the lawn mower does not start and what to do in such cases.

the 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 starter cord several times until the engine starts. After a few seconds of running the motor, turn off the starting system.

the lawn mower will not start, the spark is gone

The loss of a spark entails checking the contacts and the correctness of the gap between them, the conducting wires to the candle and the candle itself.
The way to check the spark is to unscrew the candle, connect a wire to it, put the candle sideways to the motor casing and pull the starter several times as if starting the lawn mower, while you need to look at the coal and the contact of the candle, a spark should run between them.
If there is no spark, take a new candle, do the same procedure, if even the spark is not traced, then there is a problem in the wire or contacts, it is better to replace them.

the lawn mower will not start when hot

If the lawn 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 starter 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 is necessary to start it as if it was 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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Chinese lawn mower won’t start Diagnostics and repair.

Published on 24 May 2018

Diagnostics and repair of the Chinese lawn mowers Rostec. Carburetor, lawn mower repair after downtime.

lawn, mower, start, candle

For a Chinese chainsaw 7 thousand rubles normal price?

fills in a candle and the lawnmower does not start, tell me what could be the reasons thanks

Most likely the oil is bad lil, since such deposits

shoot more vidos about braids and other equipment.

Pidskazhit be-weasel, for a problem, do not start on hot! Just a bahkaє vibuhom either into the muffler, or through the carburetor. To go so-called “vibuhi” through the whirlwind to wind through the half-arms. Is it because of the flames? The first tank is vipraced with gasoline. another bay. bahkalo-bakhkalo, ledve zav_v. Ideally, after finishing the tank (not an additional 600g canister), trying to muffle and start the odor. yak godinnik started up! Leave the bay for the third portion of gasoline. flew xv 5-10. zvodzhu. do not start and that’s it! It dragged on for a long time! Bahkaє i Bahkaє. useless.

Very useful video thanks, but tell me. I have such a problem there is a spark, but how do I try to start a twisted candle, is it dry, it turns out that the toplipo does not come? what could be the reason?

Ha. Starter to the customer tore?

why it is impossible to blow the valve jet?

I changed the piston in the lawn mower and it won’t start. I poured gasoline under the candle also won’t start

Good day to you

hello I have such a problem, the cash register won’t start or it won’t start, well, it doesn’t pick up speed, you add gas, it stalls, what to do please tell me

Good day, please tell me what could be the reason, when the engine is cold, the lawn mower does not start well, when it is hot it is good?

Good day. I have a braid Chinese champion, she does not have a single adjusting screw on her carburetor, how to adjust such a carburetor?

and the carburetor itself needs to be disassembled to clean?

Thank you for the video)

my mower works on suction clean suction Ana stalls

I had such a problem, too, and noticed it by chance. for some reason the plastic shit shrinks and the diameter decreases.

please tell me. from a Chinese trimmer when starting with a starter. the nozzle with a knife began to rotate. the trimmer is working. but no idle. not adjustable with a screw. and threshes. until he dies

Dear viewers. Who is not difficult, please join our group

Hello! Carver bought a lawn mower 2 years ago, used it 3-4 times a year for 1-1.5 hours with interruptions. It worked fine at first. But last year it stopped starting. I reviewed everything, went through, the spark is normal, but the candle is immediately wet, fuel flows out through the air filter. Then I did everything as in the video and the needle walks normally without resistance, but the problem is not solved. The engine does not start, but if you unscrew the mounting bolts and move the carburetor 46 mm to allow air to pass through, it starts, picks up speed and starts to stall when I move the carburetor. When receiving a portion of fuel, the engine is unstable, but it works. When I attach the carburetor, it also does not start.

Help, pzhl. The scythe starts up and works as soon as you give gas. hums and stalls. And it starts to vibrate strongly

Hello, please tell me, I handed over my trimer for repairs, they changed the oil seals, they changed the carburets, now it starts up and works at idle for a minute and a half and stalls then you start and work. it happens to start up and shoots at the glushak. and it also happens if you drowned out, for example, for refueling the eski, then it starts up and the gas dash, it stalls then somehow, as you unleash it, it works at all it is not clear that sny himself has not climbed anywhere.

similar problem. for a long time wound up. no result. I unscrewed the candle and cleaned it. covered in soot. started up. worked for about three minutes and died out. unscrewed the candle again, it is wet (overflowing?) and now it will not start. was once almost started up but then again nothing. where to dig what to watch. the carburetor was changed already that year

Hello. I watched your video and left only a positive impression. Few words, more action))))) I have a question for you. I have a lawn mower, or she has me)))), Expert 430. The same problem constantly occurs. After some time of work, always different, the speed rises to maximum and stalls. If you hear in time that the speed is growing and move your fist on the air filter a couple of three times, work will return to normal. If you “yawn” with this process, then it’s almost impossible to start. Pumping the carburetor drives the air and that’s it. It is necessary to clamp the return pipe with pliers and pump it up until the pumping bulb picks up gasoline. What did you do. Replacing the gaskets and the pumping membrane (twice) in the carburetor, replacing the damper and the needle, respectively flushing and purging, purging in your way)))) Adjustment, as the book writes and in folk ways, is zero sense. I’ve been breaking my head for more than one month, there’s no sense in (((((Maybe you can tell?

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Tell me, Husgvarna 235R petrol trimmer? it starts up perfectly, you mow 1-1.5 ares and starts to “mack”, as if there is not enough fuel, and only when you give “gas”, it will lie down for about 15 minutes and start up perfectly again! and again 1-1.5 hundred square meters and again “poor”. Crankshaft oil seals, piston ring, filter candle changed two months ago, braid worked 50 hours, what’s the problem?

Spare parts for Chinese lawn mowers

Hello! In general, I continue to fight with her. Before starting, I could not pump gasoline by pumping for a long time. Spat, put it aside. He took off the air filter, washed it, put it to dry. Dried up, set. Began to pump up. There were a lot of air bubbles in the return hose, but I pumped it in. Launched the third time. He warmed up the troshki and went to work. He worked for an hour and a half. I went deaf two times. No increase in revs. There was no hissing when unscrewing the fuel tank cap. The big problem is fuel injection. Drives air in the return line and the edge. Turnovers “float” downward. Re-gassed qualitatively, the work is stabilized. she makes me very angry.

Hello. Chainsaw problem. Does not start. After a long downtime, he barely started, worked for 5 minutes and stalled and no longer wants to start. The filter is normal, there is a spark, fuel comes in (cleaned the carburetor), but does not want to start. does not even grasp when I feed fuel from the syringe through the spark plug hole. What do you think, what could be the problem??

Guys, I have a bike for looking for and finding a problem. Some masters (we will not name it) immediately run after a new carb, even for a new instrument.

Hello! I have a question: I have a lawn mower Soyuz BTS-9252L and it consumes a lot of gasoline! What to do and is it possible to reduce gasoline consumption?

I have the same braid, today I started it and there was a terrible vibration, from which it can be?

hello I have such a problem, the cash register won’t start or it won’t start, well, it doesn’t pick up speed, you add gas, it stalls, what to do please tell me

Great video, thanks, but damn it didn’t help. I took off my head, looked at the piston and cleaned the carburetor, but there was no point. Does not start. What else could be the case? The candle gives a spark, but it is constantly flooded. And the screw of the mixture was twisting. nothing helps. The engine sneezes but won’t start

Good afternoon, please tell me how to adjust such a carburetor. the fact is that it is not possible to find quality screws / number. Blends for Champion t347-2

hello. bad breeder and does not gain momentum

People, I bought a BT5200 lawnmower yesterday. I worked for 1 hour in the evening until the gasoline ran out. Today I can’t start. Zero scythe. What could be the reason?

Tell me! My karbirator does not lend itself to adjustment (the mixture quality screw) is cool, and the lawn mower does not change the sound, that is, it does not gas and does not stall. Tell me a hundred maybe.

hello.thanks for the video.I didn’t start a braid. after your video I did everything as you did. I started up. but I worked for 5 minutes in the load and it stalls again. and it’s very hot. I can’t put my hand. Thank you

what is the reason for overheating

You in the video pulled out and cleaned the upper needle with shavings, and how it is regulated, and how it should be by default?

Tell me where to dig, there is a Chinese gas trimmer with the same carb only pumping benzos not on the carb, but on the body, adjusting only with a needle and pulling the cable, the problem is the following, after the service (changed the cylinder with the piston) I did not like how it worked. before replacing the piston, she worked like a clock, until the mother-in-law filled in clean gasoline without oil. I can only adjust the needle so that it works smoothly at idle or at high, and so that it does not work as it should be, so that it works at idle and starts without problems, the needle has to be raised almost to the maximum, but at the same time it cannot develop normally speed as it floods benzene is strong. that is, if I hold full throttle, then it starts to triple and does not gain momentum, as soon as I start lowering the needle (3-4 turns have to be done) it buzzes exactly cleanly at maximum speed, but it is worth just throwing the gas just to try to stall, i.e. the gas stroke is tiny I twisted the idle with the cable tension almost to the maximum and raised the needle a little, the power dropped, but at least it works. Where to dig? I washed out the carb, changed the candle, maybe there was a suction somewhere in the crankcase? What do you advise?

You are the best on YouTube of this kind of master classes! Where did you learn it?

I have the same lawn mower. The problem is looking for some stalls. Put a new purchased carburetor and a new coil, no changes. I pour gasoline into the cylinder, it starts up and stalls right away. Help fix the problem.

Prompt the braid starts up “cold” only when the damper is open (down), it worked normally before. What could be the problem?

the scythe starts working, but when you give full throttle it loses speed, the carburetor is not adjustable (there is no jumper), replacing the carburetor with an analogue with a jumper did not give anything. What could be?

the screw of the quality of the mixture. when you tighten it all the way and then unscrew it, the mixture becomes richer. ? and how to adjust it correctly

As I do according to recommendations from the Internet. on a heated lawn mower, when you press the gas, it stalls, I begin to unscrew the screw until then. until the scythe starts to work at high speeds, and if I leave it that way, then gasoline flies out (dripping a little) from the exhaust pipe. Does this mean that you need to tighten this screw a little back, In general, I would like to look at your example. how does a master of his craft

Tell me it is difficult to start after firing a shot into the carburetor and then a sharp drop and stalled what could be?

Good afternoon Such a question I have for you, you can replace the upper gearbox square with a gearbox with 7 splines.

Guys, thanks a lot for the video, it really helped. I send rays of good, well, I signed up, of course)

help pzh the carburetor does not pump manually

gasoline does not flow to the spark plug, why is it

Good day! Tell me where to flatter, a trimer not to get hot? If you start to cold, it works without intermittently normally until the gasoline runs out. The candle is dry. there is a spark. Apparently no fuel is being supplied. And the code will cool down for about 20 minutes to start the first time.

hello tell me my braid stood for two weeks and such nonsense as in the video is the reason why the braid grasps but does not start?

Good day! A very useful video I have a similar problem, but a little with a subversion: It works like a clock on a hot start from half a barrel, but if it stands for 10-15 minutes it will cool down until you have time in the crankcase, a little gasoline will not start, or how you start it, and everything remains like a song and again deafly tell me what to do. Cleaned the carburetor and dried it dry with clean hands, twisted the foam in the filter and washed it! Maybe the membrane ass I don’t know.

All bolts are tightened !! In short, generally fucked up carburetor! Today I finished mowing the potatoes, I somehow disassembled the carb, washed, cleaned, dried, collected and. The bitch won’t start at all! A drop of gasoline into the crankcase started up from 10 times, but it works at idle, but only dash at least a little gas or lower the damper, dash air, and it stalls! The gasoline is returned and the candle is dry and the crankcase too! This is complete FUCK! Tomorrow I’ll buy a new one and it’s all gone.

the lawn mower does not start, I unscrew the candle dry into the cylinder, pour gasoline, it works, I open the damper, it stalls

Thanks now I will do it myself

Thank you so much for the video! And then mine starts at the first calluses between my fingers.

I have exactly the same.

A cold scythe engine will not start in any way. I supply fuel with a syringe to the carburetor, it started up from one time, it works fine. A warmed-up engine starts well. Then the engine cools down and does not start. Tell me what to do. The carburetor is the same as in your video.

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Hello, tell me, I changed the CPG on the spit, it started up and stalled, it won’t start anymore, the piston is scratched from the side of the carburetor.

Well done! Few people know about this malfunction. everyone starts rape the foot of the needle until it breaks

Hello. Bought a Champion trimmer last year. The hectare mowed down almost immediately, at the end it touched a tin pipe, did not notice it among the grass, then began to work poorly. The hour starts, when idle, it works, when the gas engine is turned off. What to look for?

Thanks for the video, nice and helpful review! Subscribed to the channel. There is a good thing, like a fuel combustion catalyst, is added to gasoline! It helps a lot in the operation of the engine, there are no deposits during combustion. I have been using various modifications for four years now, now the St. Petersburg Scientific and Production Enterprise! Come visit the channel!

there was such a problem the Carver motor-drill did not start gasoline did not enter the cylinder, solved the problem by removing the gum in the jet.

I have such a problem, If you mow a little, and then turn off the lawn mower, then turning it on “hot” is an even bigger problem than “cold”. What to do with him? Please tell me)

why is there a full cylinder of gasoline on the benzo trimmer, what is the problem

People help, the lawn mower throws oil, not from the exhaust, I don’t understand where, who faced such a problem, please help.

hello my Champion lawn mower stayed for a new week and it overheated in 30 seconds and won’t start help what to do

good day, if weasel got a mowing mowing mowing xv5 i stalled now not to start? can you boo?

Hello, on my device, inside the screw that secures the needle, there is also a small screw that adjusts the height of the needle, how to adjust it correctly?

I have a cracked intake manifold on my Alpina TV320 lawn mower, please tell me you should buy the original or a Chinese one.

the collector set it starts everything works. But the problem is different, the screw of the quality of the mixture is non-standard for a screwdriver type 1 (round).

Explain if the needle is shredded, it will stagger and therefore fills the carburetor, is it really possible to drill a plastic pin in the carburetor.

I cleaned everything up, but my gasoline gushed from the air vent

Krasava. everything is clear and clearly explained

low speed, what needs to be repaired, please tell me

What causes the crankcase to collect gasoline when the lawn mowers are started?

what drill to clean the needle landing?

Good day! With a drill of what diameter did you clean the hole?

I’m looking for a trimmer, it gasps a lot at idle, what could be the reason

Well, the video can be called “What was that?” Chinese lawn mowers have problems with starting up all the time. If you fix it every time, then it is better to have a spare carburetor and take it to the field.

Chinese lawn mower “Rostec”?))

lawn, mower, start, candle

on my new spit, the lower and upper gearboxes are heating up. Tell me so it should be ?

Hello! A question about a lawn mower. You start everything up, after 20-30 minutes of work it starts to lose momentum. And without a load, one can sense by ear that the rpm is less than it should, and when you start mowing, it generally drops a lot. Tell me what could be the reason, you may have encountered a similar problem. Kose 4 months (Chinese) CARVER PBC-33. Thanks in advance!

Akita trimer. it is not clear how to catch blanks. you get idle little ones almost stalls. you turn into full throttle, they become large, but after a minute they decrease to normal. you turn off the start. small again. until you turn it off. new

In general, the question is. I ruined two carbs by pouring low-quality fuel and leaving a scythe with unused fuel))) I bought a new carb scythe works fine. Here on YouTube I found a vidos, the author said there that if the scythe with fuel remains, then the light fractions of gasoline evaporate and the carburetor membrane becomes clogged. I’m interested in how to actually dissolve these heavy fractions of gasoline that clogged the membrane? soaked the membranes in pure kerosene for a day. the scythe started to work better but still stalled. maybe there is something better than kerosene, but not something that would dissolve the membranes themselves?)))) searches in the internet, alas, did not give anything (((

What is the adjusting bolt on the return?

Good afternoon, I ask for help, the situation with the lawn mower is like this, it starts up well, but when you hang it on your shoulder and start mowing the grass, it starts to stall, and if you mow vertically, it works perfectly! be? please tell me

You will still suffer when the throttle valve starts to wedge)

what diameter drill? I have a millimeter, I tried to clean it, it does not fit, it is necessary to drill chtoli?

help me need a 37mm piston for a dolmar trimmer I can’t find anywhere! can you tell me what will fit

Give advice! After working, the lawn mowers do not start for 20 minutes until the air filter has cooled down and the gasoline is constantly in the air. how to remove the problem?

hello tell me please mowed the grass everything is fine the next day I could not start the Champion trimmer t 283 spark there is a wet candle but do not start

Good day. I bought a new lawn mower, carried out the so-called running-in, worked without straining for about 30 minutes. then at full power and speed, he began to mow and after 20 minutes he stopped. The engine stalled and will not start, gasoline has gone into the air filter. He unscrewed the candle and checked the spark. there is only a dry candle, unscrewed the muffler, checked the piston stroke, it runs normally just as dry, gasoline is filled, the return flow is in progress, I unscrewed the diaphragm corburetor as if it were intact. the engine is exactly the same as yours in this clip, even the carburetor is one-to-one, only the hatter model. Under the guarantee, this is not an option, since the device was bought in Omsk, but at the moment in the KCR and a specialist does not want to give it away. you can tell by symptoms?

I have where the air filter was all in gasoline what does that mean. help

Scho robiti yaksho zlamav the regulatory gwent feeds і part of yogo was overshadowed in the middle.

Good day. tell the trimmer the throttle lever to start at the “throttle” position, and then when I put it on “start” the engine stalls.

guys in minya problem such a bolt unscrewed fastening the tank broke the flywheel will work the crankshaft does not break.

I have a good start on a cold one, it sometimes stalls during work and then does not want to start on a hot one. you have to wait to cool down, and then start. What is a parable? thank.

finally, the handsome guy helped

Hello, mowed with interruptions, the scythe stalled and did not start the scythe any more 5 years, what could be

Maybe you can tell the lawn mower starts up well, but when you press the gas, it does not adjust to the required speed

I also have this problem, but I bought a scythe 2 months ago

I do that too?

Thank you very much for the detailed story about the carburetor. If possible, give something like that about the ignition system.

Thank you MASTER. Your videos helped a lot

And you can throttle without a bar?

the lawn mower starts to work normally, but when you press on the gas it stalls. Who can beat? lawn mower Centaur 5240TK

tell me, please, the scythe started up (not immediately, but it started up) and continues to work on a closed air damper This should not be so (before that, after bad gasoline, I disassembled and cleaned the carburetor), but now I am trying to mow. mows, but when I try to push on full throttle, it seems that the momentum seems to be gaining momentum.

Fuck power skoko)

Hello. I have a question for you. In general, briefly, I can’t start the scythe from the 15th time, it starts up, there is no idle, and after five minutes the robots, the scythe is heard and the scythe stalls! What could it be? Thank you for earlier. )

I have a subscription, very interesting channel.

Hello The question is if the return line is looped with the main fuel supply hose ??)) (t) shaped adapter? I’m doing a homework here and there will be a tank on top!)

good people need advice from a lawn mower with a cylinder volume of 52 cm which is powerful or choose another.

lawn, mower, start, candle

good people need advice from a lawn mower with a cylinder volume of 52 cm which is powerful or choose another??

5300 in the title is probably the price)

Hello, please tell me the lawn mower starts up normally for a cold one, but after it has worked for 30-40 minutes and drowned it will not start, but if you unscrew the candle and clean it, it starts up right away, changed the candle, put a new one unchanged for a hot one, it will not start only you need to clean it

Hello. My lawn mower won’t start. I put a new carburetor, it did not help it will not start. The reason what could be.

Hello lawn mower China title Champion she is 8 years old and without a single repair

Help me figure it out, I start it on the cold one the first time, I mow it normally, the idle is excellent, as soon as I am off the beaten track, then I can’t start it, I pull the pull, there is no result, the spark is blind, what is the reason tell?

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Why does it stall for a cold one if you let it go off the gas and how it warms up at a very high speed, you can not even call it and if I remove it with the idle board, then I cannot start.

Oleomak Sparta 25, the tenth year of the spit, well, let it lie in the warehouse for a year, it works like a clock! No problem!

In another video, with such a malfunction, you changed the coil

spasibo. palec verx

They gave a boo to the lawn mower a bullet for repairs, after the classmate’s classmate, they filled up the rings, repaired the trochies, and for a given hour, the start-up was immediately deafening, if weasel asked what the problem was, if it was a problem, it would be repaired.

They gave a boo to the lawnmower a bullet for repairs, after the classmate’s classmate, they filled up the rings, repaired the trochies, and for a given hour, the start-up was immediately deaf. be we caress to tell what is the problem and what is the problem?

Start up normally. you give gas. stalls. from a full tank blows out fuel. does not develop full power. what is the problem?

Tell me please ! This year the scythe started to work poorly. I mow for about 20 minutes and it stalls and does not start until it cools down completely. what is the reason ? thank

How to start diagnosing lawn mowers

If the lawn mower does not start or immediately stalls after starting, it is necessary to sequentially check all the main components and assemblies. The verification algorithm is as follows:

  • Fuel tank (fuel quality);
  • Candle and candle channel;
  • Air filter;
  • Fuel filter;
  • Breather;
  • Exhaust channel.

These nodes are most often the source of major problems that can be eliminated after a thorough inspection.

complex reasons for lawn mowers failure

If the step-by-step troubleshooting algorithm does not work, and your scythe still does not start or stalls, it is worth inspecting the carburetor and the engine itself. A clogged carburetor can be one of the reasons for erratic tool performance. There are three main problems here:

  • Clogged ducts or nozzles. All this is cleaned by special washes or blown by a powerful jet of compressed air from the compressor. Do not use needles and wires, as the bore may be damaged;
  • Worn carburetor gasket. Exit. replacement of a failed gasket;
  • Violation of tightness. To check this indicator, you can use an ordinary household tonometer, replacing it with a suitable pressure gauge. Watch the readings: if they do not change, everything is fine, but if the pressure starts to drop, then some part of the carburetor is faulty. We’ll have to find it and replace it with a new one.

If everything is in order with the carburetor, then the gasoline trimmer may not start due to wear of the piston group. If chips, scratches or scuffs are found on the piston or cylinder, they should be replaced. Piston rings are subject to mandatory checks. A small backlash of the piston when rocking the connecting rod indicates that it is time to change the rings. This procedure is best entrusted to the specialists of the service center.

We carry out diagnostics of a candle and a candle channel

If the quality of the fuel mixture is not in doubt, and the lawn mower stalls when started, then a flooded spark plug may be the cause. Here, for repairs, an ordinary candle wrench is suitable (every motorist probably has) and a spare candle.

  • We unscrew the candle and wipe it;
  • Dry it thoroughly (it is not necessary to ignite it);
  • We drain the excess fuel in the chamber through the spark plug hole and dry it;
  • We clean the old candle from carbon deposits using a file or a lady’s file;
  • We set a gap with a distance of 1 mm (you can check with any coin);
  • We put everything back in place and try to start the trimmer.

It is necessary to dry the canal for at least 30–40 minutes. Otherwise, there is a risk of re-filling and a new candle.

If the candle is working, the socket where it is located is completely dry, and the lawn mower does not want to start, lubricate the threaded connection with gasoline. It should be slightly damp. No matter how wonderful a spark the candle gives out, there is simply nothing to light up in a dry chamber.

If the trimmer motor still does not start, you should exclude such a reason as the absence of a spark due to poor contact between the spark plugs and the high-voltage wire. If the connection is of good quality, and there is still no spark, most likely, your ignition unit has “flown”. Here it will not be possible to do without a master, since the part is not repaired, but is sold as a single unit.

Top Reasons Lawn Mower Not Starting — Lawn Mower Troubleshooting

Filter diagnostics for lawn mowers

Another reason why the gasoline scythe stalls is the air filter. To eliminate it, try removing the filter and starting the trimmer without it. If it works out, then you will have to change the air filter to a new one, or at least blow through and thoroughly clean the old one.

The petrol trimmer may not start if the fuel filter is dirty. This is the next step in our algorithm. Here we check the condition of the filter element and, if necessary, replace it with a new one. When replacing, try not to leave the suction inlet without a filter at all, this is prohibited by any operating instructions. Haste can turn into repair of the engine piston group.

Breather and exhaust port

Often, “gentle” branded lawn mowers will not start and stall due to a dirty breather. The main function of this element is to equalize the pressure in the gas tank. When this unit becomes clogged, a vacuum is created in the tank, which prevents the supply of fuel. You can eliminate the malfunction by cleaning the breather. You can use a regular needle for cleaning.

Normal operation of streamers with internal combustion engines can be disrupted due to the ingress of dirt into the exhaust duct or clogging of the muffler mesh. There is such a problem on older generation models. The issue can be resolved by traditional cleaning and removal of the anti-spark grid.

Checking the fuel mixture

Before starting the engine of the gasoline streamer, check the presence and quality of the fuel mixture. Do not save, do not be greedy and do not be clever in this matter. Repair or replacement of the piston group will cost you too much (sometimes up to 70% of the cost of a new tool). Prepare the oil-fuel mixture strictly according to the instructions. Calculate its amount based on real needs. Excess gasoline left over after work loses its quality over time.

Why the lawn mower won’t start. troubleshooting

Caring for the personal plot, summer residents periodically encounter the fact that the lawn mower does not start. There are many reasons for tool failure. To correctly diagnose the problem, the owner of a useful unit in the country needs to know the device and the principle of operation of its individual parts.

  • How to start diagnosing lawn mowers
  • Checking the fuel mixture
  • We carry out diagnostics of a candle and a candle channel
  • Filter diagnostics for lawn mowers
  • Breather and exhaust port
  • complex reasons for lawn mowers failure
  • Rules for the operation and storage of lawn mowers

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