Whether you had a little fight with your mower or winter has announced its final goodbye, it’s time to ask why the lawn mower won’t start like the way it used to. That’s where you need lawn mower troubleshooting.
Like every machine, lawn mowers also show different behaviors depending on how well you maintain and treat them. Some days, it can do wonders in your lawn by starting smoothly and cutting precisely, while other days, your mower can ruin weekends because of common lawnmower problems.
Although these problems are inevitable to happen, solving them in the easiest way possible without the help of a professional lawnmower service is possible. From troubleshooting Briggs and Stratton lawnmower troubleshooting to problems like lawn mower won’t start after running over something, the list is endless when it comes to common lawnmower problems that you need to fix like a pro.
Why Should You Read This Article?
At 10bestlawnmowers, we have come across a number of queries where lawn owners are constantly concerned about their lawn mower troubleshooting and preventing problems.
However, it’s not as easy as it sounds because every lawn mower is different from others, which makes sense if you’re why you should read this guide. Here, our experts have shared everything from troubleshooting electric mowers to why lawn mower loses power and everything in between.
Although lawnmowers have a great life span and also come with a long warranty, there’s still a good chance that you might have to replace one or another part in your lawnmower. For this reason, we’ll also share the best lawnmowers in the market that are not only durable but also give you pleasurable time on your lawn.
- Worx Robotic Lawn Mower, WR165
- Gardena SILENCIO City Robotic Lawn Mower, 15001-41
- Husqvarna Automower 115H Connect
- Gardena Robotic Lawnmower, 4077 R50Li
- MowRo Robotic Lawn Mower, RM18
- Husqvarna Robotic Lawn Mower, 115H
- EGO Power Cordless Self-Propelled Lawn Mower, LM2130SP
- Yard Machines Gas Powered Lawn Mower
Which Lawn Mower Do You Have?
As we said earlier, every lawnmower is different from the others, which is why they need different fixes that we’ll share with you in this article about lawn mower troubleshooting.
Whether you have a Briggs and Stratton lawnmower engine, Toro lawn mower, t1200 craftsman riding mower, or John Deere push mower, you’ll get the most easy-to-follow solutions for your every lawn mower.
Before anything else, it’s important to understand how a lawn mower works, which we’ve shared in detail in our guide here. Once you’re done reading that, check for your relevant lawn mower problem and find the easiest solution.
When To Replace A Lawn Mower?
Lawn mowers are efficient machines that can likely last up to 7-10 years, depending on the model of the lawn mower you have. Many lawn mowers brands also offer a warranty on their lawn mower models, so you can change lawn mower parts and do minor replacements yourself.
However, you can always replace the internal parts of your lawn mower like belts, pull chords, broken cables, damaged spark plugs, lawn mower batteries, and others.
Fix Common Lawnmower Problems Without Breaking A bank!
Buying a lawnmower comes with a number of responsibilities, such as good repair lawnmower maintenance. But if you fail to do this – you’re more likely to find yourself at risk of lawn mower problems and spend hours in lawn mower troubleshooting.
This is why our experts always recommend regularly inspecting the mower, finding the problem in the first place, and treating it the right way before it gets even worse than before. For your ease, here’s a quick breakdown of some simple, easy, and effective ways to detect common lawn mower problems and fix them right away.
All you need is a few tools, some new or used replacement lawn mower parts, and sharp skills to answer things like why lawn mowers won’t start, how to start a lawn mower that’s been sitting for too long, and many others.
Problem 1: Stuck Starting Rope! What to do?
Cause Of Stuck Starting Rope
If you already know how to start a lawnmower, there’s more than a good chance that you’ve attempted many tries to find the answer to why a lawn mower won’t start due to a stuck starting rope.
When starting a lawn mower, you pull the starter rope with force, but it’s not every time the rope is easy to pull. Due to unnecessary use or mishandling, the starting cord is likely to get stuck and eventually hard to pull, requiring lawn more troubleshooting.
To do this, try to pull the starter cord gently to some extent at least 4-5 times and then give it a forceful pull, so it releases the tug. In Briggs Stratton lawn mower, you may likely experience the problem of lawn mower won’t start after running over something, which is possible when you need lawn mower troubleshooting.
Another possibility that could have caused the problem of stuck starter rope is probably why your lawn mower won’t start. In this case, the problem basically lies in your lawnmower brake, which causes difficulty in pulling the rope.
When you pull the starter rope, the engine flywheel brake also exerts pressure against the handle. As a result, the rope gets stuck and needs lawn mower troubleshooting.
If that’s the case, the best way to solve this is by gently bringing the handlebar down with very little force. In this way, the engine flywheel brake will lose its pressure and free the rope.
Problem 2: Forced Blade On The Lawn Mower
Last and the third reason for a stuck starter rope can be a forced blade that has been dragged down to the ground. After every mowing, the blade of your lawnmower is left with the cut grass clippings, which is probably because you’ve cleaned them well.
Because of the dirty underside of the mower, you may have a hard time starting the lawn mower and complain about the stuck starting cord.
The best way to troubleshoot the lawnmower problem is by cleaning the lawnmower blade thoroughly, which obviously comes in necessary lawn mower maintenance. To do that, follow the steps mentioned below.
- Take your lawnmower from the lawn to your warehouse or garage
- Turn the mower off, disengage the throttle and disconnect the spark plug
- Title the mower on to either side and start cleaning.
- Take a brush with hard bristles and clean the underside of the mower carefully.
- make sure to wear gloves while doing so and be safe from the blades.
- After cleaning, correct the lawn mower posistion and give it a quick yank to free the stuck starting rope.
Lawnmower Loses Power While Lawnmowing
A small Lawnmower engine not starting because of losing power is one of many common lawnmower problems. Whether you have a riding mower, toro lawn mower, Briggs and Stratton lawnmower engine, or trying your hands-on troubleshooting an electric lawnmower, this problem can make the lawnmower keep dying while lawnmowing.
When this happens, you’re likely to hear a strange sputtering sound or glitching action coming from your lawn mower engine. It is probably because of the following lawn mower problems.
Causes And Solutions
- Dirty Filter: When we say dirty filter, you have to immediately gear up to clean that dirty filter before the situation worsens. It’s an essential step in regular lawnmower maintenance, but you can also do it separately. To clean a dirty filter, you first need to know the correct location of a filter, remove it, clean it, and put it back in place.
- Wrong Cutting Height Of The Blade: The reason why we stress so much about choosing the right cutting height is that it makes your mower capable of handing tough mowing jobs.
- If you forget to do that, there’s more than a good chance that your mower may strike with hard surface and face lawn mower injuries. If you’ve ever been at that place, it’s because you mowed a lawn less than 2 ½ cutting height, the blades of your lawnmower are likely to strike with each other, get damaged and may require lawn mower troubleshooting.
- Damaged Spark Plug: Be it a dirty, damaged, or dead spark plug, any minor to major ditsubances in lawn mower spark plug is likely to cause lawn mower injuries. Not only is this the main cause of why a lawn mower keeps losing power but may also need help start lawn mower. If that’s the case because of which your lawn mower keeps losing power, the best practice is to repair the spark plug of your lawnmower with a new one.
Why Is My Lawnmower Blowing White Smoke?
Lawn mower blowing smoke can be treated easily unless it’s something as serious as a lawn mower explosion which is the worst lawn mower problem. It can occur for several reasons and result in lawn mower keeps losing power.
Most likely, lawn mowers blow smoke when the lawnmower engine fails to supply enough power to drive the lawn mower blades that cuts the grass. As a result, the engine blows white smoke, which can be treated by replacing it with a new lawn mower engine or inspecting its issues.
Some common signs of blown Lawn Mower Engine can be:
- Oil leakage
- Low pressure
- Lawn mower Smoke
Reasons Of Lawn Mower Blowing Smoke
Another reason for lawn mower blowing smoke can be the underfilled or overfilled oil chamber. In addition to this, a leaked lawn mower engine can also cause the oil to flow into the exhaust muffler, blowing smoke out of the lawnmower.
- Take a thorough check on your lawnmower chamber and make sure it’s filled till the mark (not above or below). It’s good practice to fill the oil in a lawnmower oil tank when it’s half full and always before every mowing.
- For leakage problems, inspect the oil chamber carefully and check if it’s not leaking anyway that might have been the main lawn mower problem. If it’s leaked, the best option is to replace the chamber with a new one while minor fixes can be done at home without the need of any professional lawn mower service.
My Lawnmower Won’t Start After Winter
It goes without saying that winter is a not-so-favorable month for mowing as the low or zero degree temperature may create a layer of frost on the grass. That’s why you should never try to start a cold lawn mower engine.
Another reason why it’s not advised to mow
in winters is that the summer grass reaches dormancy, while the cool-season grass shows a very slow growth rate which minimizes the need for mowing to the least.
This is why mowing in winter is not very favorable because you store the mower straight for 2-3 months without using it. As a result, there’s more than a good chance that a number of problems may arise in your lawn mower, from minor disturbances to major damage and whatnot.
If your lawn mower doesn’t start until after winter, it’s probably due to one or the other problem caused during the time it was stored.
Here are a few possibilities for common lawn mower problems because your lawn mower won’t start after winter.
Why Lawn Mower Won’t Start After Winter?
- Empty Gas/Oil Tank: Obviously, an empty or half-filled gas tank is likely to make your troubleshoot lawn mower as the engine will not get an adequate amount of power. In winter, the gas in the lawn mower is likely to get stale and sits at the bottom of the carbeurator, making it hard to pull and causing rust on the surface.
- If that’s the problem, the easiest way is to turn the mower off, let the engine cool and drain out the leftover gas with the help of a siphon. The same goes for oil.
- If you have oil in your lawn mower over the winter, there’s a high chance that it will corrode and rust the surface of internal engine by the reaction of gasoline, moisture, soot and other acids present in oil.
- Therefore, the best practice is to pour fresh oil into the tank before mowing, run the mower for a few minutes and empty the remaining oil once you’re done mowing.
- Issue in the Battery: When using a battery-powered lawnmower, it’s essential to check the battery thoroughly before starting the lawnmower. Over time, the battery of your lawnmower is likely to get old, damaged or need small fixes due to facing external wear and tear.
- As a result, the battery loses its efficiency and drains quicker than the average time which is why your lawn mower won’t start. If your repair lawnmower keeps dying, don’t wait longer to replace its battery, do regular and proper maintenance so it lasts longer than the average.
Why Is My Lawnmower Losing Speed Constantly?
Nothing can be more frustrating than leaving mowing midway if your lawnmower keeps losing speed continuously. Looking at that half-unmowed lawn urges you to do lawn mower troubleshooting and find the reason why the lawn mower keeps dying.
Since different lawn mowers run at different speeds, the rate at which they lose the speed may differ respectively. If you can relate to this lawn mower problem, the culprit could be your damaged or broken drive belt which keeps your lawnmower dying, and you might need help start the lawn mower again.
Solutions Of Lawn mower Losing Speed Constantly
- Loosened Drive Belt: The drive belt is mostly located in the motor casing of push and ride lawnmowers. If this is the scenario, then simply turn off the mower, find the drive belt and tighten it with any tool. For a damaged drive belt, remove it and replace it with a new drive belt.
- Old Gas: It is the most common cause of a repair lawnmower losing speed constantly after starting. For this, drain out your fuel tank with the old fuel and fill it up with new and fresh gas. If it still doesn’t maintain a constant speed, then your dirty carburetor can be the problem. Tap it off a few times so that the gas easily reaches it and passes through the small lawnmower engine.
Petrol Lawn Mower Troubleshooting
Petrol lawn mowers have a very sensitive working mechanism as compared to the other lawn mowers; you can check that out in our article here. If you too are facing the problem of lawn mower won’t start, it’s probably because of the old petrol that’s causing the problem to start the engine, resulting in lawn mower keeps dying.
Solution Of Petrol Lawn Mower Troubleshooting
The problem is no doubt a hectic one, but we have a solution for this too. When it happens, always drain the old petrol out and fill the tank with new and fresh ones. Once done, tilt the mower to either side so that it lubricates everywhere in the engine.
Lastly, give it a forceful start, or you may also take help to start the lawn mower and run the mower for a few minutes to activate its mechanisms.
Dirty Spark Plug
Most likely, the dirty spark plug in your lawn mower is responsible for causing many lawn mower problems that you might not encounter at first but when the situation worsens. For problems like lawn mower won’t start lawn mower troubleshooting, the fault is in the damaged or dirty spark plug of your lawn mower.
First, clean the dirty spark plug with WD-40 as it’s very effective in removing carbon residue and cleaning moisture, dust, and debris from the spark plug. It can also help dry water from your wet so you can get rid of the problem of lawn mowers losing power while mowing.
If the problem is still there, it’s a problem because of any underlying damage to the lawn mower spark plug. If this is the case, try replacing the damaged spark plug with a new one so the problem can be resolved.
You can implement the same solution with a clogged air filter that has caused the problem of lawn mower won’t start.
A clogged carburetor can give birth to a number of lawn mower problems in which the lawn mower losing power constantly sits on the top. If you also experience a clogged air filter due to any reason, it’s better to treat them right away before the situation worsens.
Because of this, the fuel may not reach properly to the engine, causing the lawn mower to keep dying.
To fix their problem, first drain the old fuel, gasoline, or diesel from your lawn mower in a bowl. Next, clean the dirty carburetor but make sure to turn the power off before doing this. Once this, inspect your lawn mower engine for leakages, and at last, start the mower to check if everything’s up to the mark.
Why My Electric Lawn Mower Won’t Start?
Check Power Supply
As obvious as it sounds, an electric mower works either through a high-powered battery or directly supply from the electric output with the help of a cord. Therefore, starting an electric lawn mower shouldn’t be a problem if you have an uninterrupted power supply connected to your mower.
If the problem is somewhere between this, always inspect your lawn mower battery and check the power supply to ensure it’s safe, efficient, and working well.
Blow Fuses or Tripped Breakers
A blown a fuse could be the reason why your lawn mower won’t start and often keeps losing power. Due to any lawn mower injury, if a fuse has blown or the breaker has been tripped, the best way to solve this issue is by testing the electrical output to check if it works.
If the issue doesn’t resolve here, try replacing or resetting these parts.
Defective Petrol Cap
As the name suggests, a defective petrol cap can be the worst nightmare and cause a number of lawn mower problems. If you’ve got the best petrol lawn mower, you probably know when the petrol cap is damaged or has small vents. When this happens, the vents in the cap let the air into the tank, losing the freshness of the petrol.
Some Other Possibilities That May Be Causing Common Lawn Mower Problems
- Running Out Of Gas?
As obvious as it sounds, lawn mower out of gas can be a common cause why your lawn mower won’t start. That’s where you need lawn mower troubleshooting to resume the speed of your lawn mower, which is only possible when you refill the gas. As a good rule of thumb, always fill the as in the tank when it’s half full.
2. Dirty Fuel Lines:
Dirty Fuel Lines in a lawn mower are a serious threat and a major cause why your lawn mower won’t start. It’s likely possible when your mower has run out of fuel, or the dirt and debris have sat at the bottom of the fuel tank.
In any case, you might face the problem of lawn mowing losing power which can be avoided by cleaning the fuel lines well. Once done, start your lawn mower carefully and inspect the fuel line for any leakage or other lawn mower problem.
Problems With Lawn Mower Blades
It goes without saying that blades are the most important part of a lawn mower, and any disturbance in that could result in problems like lawn mower won’t start and others. Many times, the blades get stuck or blocked due to tall and long grass clippings.
When you cut those clippings, they clog the blades and cause lawn mower engine problems.
The best way to avoid this is by regularly cleaning, maintaining, and fixing the lawn mower blades with easy to fine working tools. Don’t wait for the grass to build up, as it can cause difficulty for the blades to turn and twist properly.
Once you’re done cleaning the underside of the mower, adjust the cutting height of the blades to at least 3 1/2 inches, so you don’t face any trouble in cutting the grass of any length.
Lawn Mower Compression
There’s hardly any possibility you know what lawn mower compression is. It happens when the mower heats up, which causes a change in the size of the valve and causes minor disturbances in the lawn mower engine.
As obvious as it sounds, the higher the compression engine will be, the better the engine will perform, and more power will drive the blades of the mower.
However, identifying this problem can be hard as it’s not noticeable in the first place unless you inspect the lawn mower carefully. To diagnose the problem, check the lawn mower engine, adjust the size of the valve and check other common lawn mower problems symptoms, so you’re not left with any doubt.
Here is our detailed guide on how to troubleshoot your lawnmower. Not only do these common lawn mower problems decrease the life span of your mower. But they also result in irregular cuttings or mowing that are not worth your time, money, or efforts into mowing.
If you don’t have time to read the complete article, we have enlisted a short, simple, and clear table for you to identify your problem and fix your lawnmower at home quickly.
|1||Stuck Starting rope||Clean the Lawnmower blade.|
|2||Lawnmower losing power||Clean the dirty filter. Raise the cutting height. Replace the spark plug.|
|3||Lawnmower blowing smoke||Fill the oil chamber. Treat the leaked chamber.|
|4||Lawnmower Won’t start after winter||Re-fuel the gas tank. Refill the oil tank. Replace the lawnmower battery.|
|5||Lawnmower losing speed||Tighten the drive belt Tap the carburetor Drain the old gas or oil.|
|6||Worn-out or dull blades||Sharpen the blades.|
|7||Clogged Deck plate||Clean the grass clippings.|
|8||Slow lawnmower engine speed||Use full speed to mow the lawn.|
|9||Unleveled or improperly installed tires||Flatten the tires properly.|
|10||Irregularly shaped grass cutting||Raise the cutting height.|
|11||Splutter Sound||Clean the dirty filter Adjust the cutting height Clean the lawnmower blade Check the spark plug Sharp the lawnmower blade.|
|12||Overheated lawnmower engine||Attach cooling fins to the lawnmower engine.|
|13||Corrosion of Carburetor||Cut off the fuel line and replace the carburetor.|
|14||A bumpy ride on a lawnmower||Fill the oil to the mark.|
|15||Bagging, discharging, and mulching of lawnmower||Mow at full throttle and use a deck size of 3/8 high.|
|16||Excessive vibration||Clean the grass clippings and yard before mowing.|
|17||Engine cranking||Charge the battery. Ensure proper connection to the battery.|
Lawnmower Troubleshooting Tips
Some Lawnmower troubleshooting tips to ensure a smooth running of your lawnmower:
- Prepare a good lawnmowing maintenance schedule and replace the worn-out lawnmower replacement parts from time to time.
- Be sure to clean the blade every time after mowing from grass clippings.
- To prevent rust and corrosion, regularly oil the metallic lawnmower replacement parts.
- For battery-powered mowers, frequently recharge the batteries to make sure they’re appropriately connected to the correct voltage.
- Always disconnect the spark plug when turning the mower off or cleaning any of its parts.
- Clean the jet of the mower separately by removing it from the lawnmower.
Long story short, you never know are also prone to minor glitches that require quick fixing lawnmowers at home instead of waiting for a professional lawnmowing service for hours. To save money, time, and effort to hone your craftsman skills; read this article to fix common lawn mower problems like a pro in no time.
Either it’s toro lawnmower or john Deere riding and push mower, these lawnmower troubleshooting tips work for nearly every type of lawn mower. So now it’s time to say goodbye to costly lawn mower service and buy the best lawn mower on the market so you can make it out of it on your lawn.
If you’ve convinced yourself to buy one, you’re in luck for sure, as there are some of the best lawn mower sales going on where you can find your favorite lawn mower for cheap.
Check out our compilation of lawn mowers that cut great, last long, and don’t cause common lawn mower problems in articles 6 best types of lawnmowers, the best lawnmowers for money, the 6 best lightweight lawnmowers, and the 7 best lawnmowers under $500.