Lawn mower compression problem. Here’s What To Do If Your Lawn Mower Won’t Start

Learn the reasons why a lawn mower won’t start after winter or during peak season, and how to fix those problems.

Family Handyman


Most of the time when a lawn mower won’t start the cause is a problem with the gas or the lawn mower carburetor.

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What to Do if Your Lawn Mower Won’t Start

Whatever kind of lawn mower you’ve got, the last thing you want once winter finally lifts and spring has sprung is a lawn mower that won’t start.

If you’ve taken the proper steps to winterize your lawn mower, you’re far less likely to be dealing with such issues. It’s also why you should tune up your lawn mower at the start of every season. However, it’s not out of the ordinary to find your gas-powered lawn mower not starting from time to time, so it’s important to know why your lawn mower isn’t starting and how to fix it.

Project step-by-step (6)

Check the Gas Tank

Let’s start with the obvious. Before you have a heart attack pulling on the rip cord, you’ll want to check the fuel. Like any gasoline-powered engine, lawn mowers run out from time to time. Maybe you forgot it was running on fumes when you finished mowing last time. It sounds simple, but we’ve all overlooked the gas tank from time to time.

Even if there is gas in the mower, if the fuel’s been in there more than a month, that could be the problem. Gas sitting around too long in the tank can get contaminated with dirt and extra moisture.

So if your gasoline has been in the mower for more than month, drain the gas properly, dispose of it correctly, and fill up the mower with new gas. It may take quite a few pulls to suck the new gas into the lawn mower carburetor, so be prepared to clean and dry the plug a few more times.

Add fuel stabilizer when you fill up the tank to help protect the gasoline in there from dirt and moisture.

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Check the Spark Plug

Start by making sure the lawn mower spark plug cable is connected to the plug itself. It’s quite possible that it got pulled off there over the winter while the mower was being stored in the garage.

If that’s not the issue, the next step is to remove the spark plug to see if it’s wet. There’s no way the engine will start if it is. So clean the plug with carburetor cleaner and let it dry. Cleaning it with compressed air isn’t enough; you need a solvent to remove oil residue. If it’s really grimy and dirty, it might be best to change the spark plug.

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Check for Debris in the Mower Deck

Grass clippings can get clogged in the mower deck, which can prevent the blade from turning. This is a common problem if you’ve cut wet grass or let the lawn get especially long and bushy between cuttings. If the cord is hard to pull, that’s a good sign that there’s debris clogging up your mower’s deck.

This is a pretty easy problem to solve. With the mower off, flip it on its side or upside down and scrape out the gummed up grass clippings. Once that’s done, you can flip it back over and start it up again.

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Check the Air Filter

The lawn mower’s carburetor regulates the mix of gasoline and air going into the engine where it’s burned to create power. Before air goes into the carburetor it passes through the air filter which prevents dirt and debris from getting into it.

If the air filer is clogged or dirty, it throws the ratio out of whack. Sometimes that results in your lawn mower smoking, and sometimes it prevents it from starting entirely. So take a look at the air filter to see if it’s dirty. If so, you can clean it or just change it outright.

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Check the Carburetor

Another common reason for a lawn mower that won’t start is a clogged or dirty carburetor. It can also cause your mower to run rough or spew black smoke when you’re trying to cut the grass. If that’s the case, you may need to clean the carburetor.

To get to the carburetor, you’ll have to remove the air filter. Once that’s out of the way, you can remove the carburetor in order to clean it.

Once it’s out, check for corrosion. If you see chalky/powdery white corrosion like this, it’s probably better just to replace it. To clean it, take it apart and spray carburetor cleaner on the parts and inside the housing. After that, put the carburetor back together and reinstall it in the mower.

Check the Fuel Filter

Like the air filter, the fuel filter prevents dirt and debris from getting into the combustion chamber of your lawn mower’s engine, taking that stuff out before the gas gets mixed with air in the carburetor. Problems with the fuel filter might also result in the engine sputtering or rough idling, even before it gets to the point of preventing the mower from starting.

To start, tap the side of the carburetor to help the flow of gas. If that doesn’t work, you might have a clogged filter.

Not all lawn mowers have a fuel filter, but for the ones that do, it’s usually located in the fuel line or the fuel tank. To find out where the fuel filter is at, check your lawn mower’s owners manual, which will also tell you what type of filter it is.

If the filter is in the fuel tank, you’ll need to drain the gas from the mower into a drain pan, assuming you can’t run the engine until it’s out of gas. If the filter is in the fuel line, clamp off the fuel line before removing the filter. Once you have the filter off, you can check to see if it’s dirty and clogged by holding it up the light. If it is, install a new one. Make sure it works with this lawn mower maintenance checklist.

Lawn Mower Repair Tips – A Self-help Guide

Like any machine, every lawn mower needs regular maintenance. Without regular maintenance, the chances of problems developing increases significantly as time goes by.

In today’s modern world, we all get busy from time to time. Perhaps you’ve missed a service or two and now your lawn mower is showing early warning signs that it is in need of repair. If you are having problems with your lawn mower, for any reason, we hope this guide helps to point you in the right direction.

It is worth noting that, depending on the make and model of your lawn mower, the steps and information contained within this article may not be consistent with your lawn mower. This article is intended as a general guide only. It is recommended to seek professional service assistance from a qualified repairer if you suspect your lawn mower is in need of repairs.

Lawn Mower Uses Excessive Fuel

If you feel that your lawn mower is using more fuel than normal, start by checking common service items. Inspect your air filter to ensure it is not blocked, and replace it if needed. Check and replace your spark plug, as a poor quality spark could lead to incomplete combustion. Check to make sure there is nothing caught up under the cutting deck which may place drag on the motor. And lastly, check and replace your mower blades if they are dull. A fresh set of mower blades will mean you won’t have to run the engine at high RPM to achieve the same cut.

Next, check the float level in the carburettor to make sure it is not sticking open and is correctly adjusted following your service manual. After that, check the high-speed governor setting and then check that the choke plate is fully open when the engine is running. If the choke plate is in good order, check the pilot screw and adjust it as per your service manual to ensure your air/fuel ratios are within specification.

If you still suspect your lawn mower is consuming more fuel than it used to, check the engine’s compression. If the cylinder compression pressure is low (refer to your service manual for test procedures and specifications), first, check to ensure that the valve timing and clearances are set correctly. Other checks will include ensuring the valve and springs (4 stroke engine) are not sticking open or damaged. And inspecting the cylinder bore for scoring with an inspection camera.

Lawn Mower Engine Hard to Start

Petrol mowers have several reasons why they won’t start, with a common one being the spark plug. If the spark plug is not firing, then there is no way to ignite the fuel to fire up the engine. Remove the spark plug and give it a clean to remove any built-up carbon and check the gap is set correctly. If it has not been replaced recently, replace it with the recommended spark plug for your mower.

Next, remove and replace your fuel filter in case it is blocked. While your lawn mower may have a full tank of fuel, it could have been left too long or is not the correct type to use with your mower engine. Empty the fuel from the tank and check the intake system, also check the air filter. You should also top up your oil level before starting it up.

Check that the choke plate closes completely when you engage the choke. If the choke plate does not close completely, then adjust it so it does. If the choke plate is already completely closed, then check that you’re getting spark to your spark plug. If the spark is working as expected, then check the compression as per your owner manual. If all is well with the compression, check for a sheared flywheel key. If the compression is not within specification, then you will need to inspect the valve settings, cylinder bore and piston rings.

Lawn Mower Burning Excessive Oil

Common causes of burning oil include over filling the sump with too much oil (4 stroke), too much oil mixed into the fuel (2-stroke), or a leaking cylinder gasket.

Start by cleaning any excess oil from the engine and surrounding parts, then start the engine and try to isolate if the oil is leaking from the engine itself, or being blown out of the exhaust. An oil leak dripping down the outside of the motor indicates a leaking gasket, and oil blowing out of the exhaust when the engine is running indicates an internal issue or poor fuel mix.

If your mower is 2 stroke, start by draining the fuel and refilling the tank with fresh fuel of the correct mix. If your mower is 4 stroke, check to ensure the oil level is at the right level, and not overfilled. If you aren’t sure, drain and replace the engine oil with the correct grade of oil to the full or high mark on the dipstick, following your service manual. Then if the smoke persists, investigate the breather tube from the crankcase to ensure it is not blocked, and also ensure that the cutting blades are free from excessive debris. If you find that a gasket is leaking, it is recommended to have your mower inspected and repaired by a qualified repairer.

If you have an electric lawn mower that is smoking, then the motor is most likely overheating. The most common cause of this is when the mower is used to cut long grass or particularly dense foliage, or a fault with the battery or motor itself. If you notice smoke coming from your electric lawn mower, turn the power off immediately and allow it to cool down, and get it inspected and repaired by a certified repairer. Do not attempt to repair any battery power tool.

Lawn Mower Low On Power

If your mower keeps cutting out when you are using it or feels down on power, then there are a few easy things to look for.

The first is to check the regular service items. Check the air filter is not blocked as this can prevent air from reaching the engine. Check and replace the fuel filter to ensure it isn’t blocked. And inspect and replace the spark plug. Once you have checked and cleaned your filters, move on to inspecting the blades to make sure they are not being compromised by excessive grass clippings, twigs, and stones.

You will want to ensure the RPM and governor settings are correct, too. If your engine is overheating, check the air inlet filter for any built-up debris. Remove the filter cover and housing and then clean out any dirt or debris in the filter and cylinder cooling fan areas. If your engine is not overheating then check that your oil levels are sufficient and that the oil pressure levels are as per your service manual.

Next, check that your fuel is not contaminated and that the carburettor is not blocked. Drain and refresh your fuel. Clean out the fuel lines. Then remove the carburettor fuel bowl cover and check that the float is correctly adjusted and can open and close freely. Finally, give the carby a good clean with carburettor cleaner, ensuring the jets are not blocked with debris. Most manufacturers will offer a fuel service kit to make this job easier.

Lawn Mower Is Backfiring or Popping

If your lawn mower backfires, it is an indication that your engine is firing at the incorrect time in the engine cycle. This could be due to incorrect ignition timing, perhaps the engine is ‘running on’, or you have an exhaust leak.

Start by checking the easy things, like the exhaust manifold bolts and carburettor are correctly torqued. If they are okay, then move on to check that there are no leaks on the head gaskets and that the head bolts are tight.

Next, check your ignition timing following the instructions in your service manual. This can be tricky so if this sounds beyond your abilities, it’s best to take it to a qualified repairer.

If the backfiring is limited to when you shut off power to the lawn mower, then take a look at your throttle plate. If it is completely closed, then adjust the idle speed of the engine as per the engine manual. Backfiring can also occur due to rich or lean fuel mixtures. Close the choke slightly and listen to your engine. If it runs smoother, the carburettor may need to be cleaned. If it runs rough, then use your service manual to check the compression.

Lawn Mower Starter Rope Is Sticking or Stuck

If your starter rope is refusing to move when pulled or only coming out part way before jamming, then there are several different causes that could be responsible.

Starter Cord is Crossed – When the cord retracts, it may end up crossing over itself causing a tight bond on the tightly wound cord. This can prevent the cord from moving and pulling at it only serves to tighten its grip. You need to remove the cord cover and manually unwind it until the crossed over part has been removed. Once you refit the cover, it should operate like normal.

Mower Blade – If the mower blade won’t spin freely, then the pull cord may not budge. The first thing to do is check for debris that may be preventing the blade from spinning. If this is all clear, then you will need to look closer and see if the blades are bent or damaged. If the blade is damaged, replace them and ensure the mower spins freely, following the procedure in your service manual.

Hydraulic Lock – This may occur if the combustion chamber becomes clogged with oil or fuel. The resulting effect is that the cable locks itself down and becomes impossible to move. You can check if this is the case by removing the spark plug, then pulling on the core again. If it move freely and oil/fuel spits out of the spark plug hole; you know you have found the problem.

If you have tried the above fixes to no avail, then it may be time to take it for a service at your local service centre. While there are options available for self-repair, lawn mowers can become dangerous if you don’t know what you are doing. In the case of tools with blades, combustible fuels, and electrical components it is better to be safe than sorry, and always seek the assistance of a qualified repairer.

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Lawn Mower Stops After Starting a Few Minutes?

Some people enjoy mowing the lawn and many don’t. One thing’s for sure, though – if you have to fight with your Lawn mower to even make it work properly, a boring but simple chore can quickly turn into something far more frustrating that will have you pulling your hair out and kicking the machine in exasperation.

If your Lawn mower starts then stops after a few minutes, there could be several reasons. Here, we’ll look at what could be causing the problem and give you some suggestions for how to fix it.

Be systematic

If your Lawn mower is playing up, the key to fixing it is being systematic. To be able to repair a problem, first, you need to locate and identify the problem. To do this, you need to work through all the possibilities one by one to eliminate them until you find the cause of the issue.

Once you identify the problem in this way, you can then begin to think about what to do to rectify it.

Here, we’ll work through the different possibilities, starting with the most basic and common before moving onto the more complicated issues that can arise. In this way, you can eliminate each one until you discover what’s wrong with your machine.

Here’s a video that shows you how it’s done.

Lawn Mower Possible problems

Are you out of gas?

Since we said we’re going to begin with the most basic issues and work from there, we’ll start with this. Sometimes, people see their mower stop working and automatically assume the worst – but you could just be out of gas.

Check to see that your Lawn mower has not run out of fuel. If it has, you’ve already found your answer.

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Is there another problem with the power supply?

The same is true if you are not using a gas-powered mower. Is the battery out of charge? Or if it is a corded model, has it come unplugged? Is there a power cut? You need to eliminate these kinds of possibilities before you move onto more technical areas.

lawn, mower, compression, problem

If you have a self-propelled Lawn mower, an electric cordless Lawn mower or anything else that doesn’t run on gas, don’t forget to check the power supply before you look at anything else!

Are the fuel lines clean?

One problem can be that when you run out of fuel, if there is any debris in the tank, this will be sucked into the fuel lines and stop it from restarting. If your mower doesn’t restart after running out of fuel, make sure the fuel lines are clear and try again.

Is it a problem with a spark plug?

The next thing to check is the spark plug. Is it clean? Is it old? Is it properly attached?

If it is not properly fixed in place, simply make sure it is attached correctly and try again. If it is dirty, this will also prevent it from working correctly so give it a quick clean.

If your spark plugs are old, they may also begin to fail – in this case, you should replace them. In fact, changing your spark plugs is not expensive and should be part of your annual early spring maintenance schedule before the growing and mowing season gets underway.

Is the air filter blocked?

Another reason a mower might start and then stop is that the air filter becomes blocked. If this is the problem, then it’s good news because it’s easy to fix since most mower filters are cleanable.

Check to see if the filter is blocked and clean as necessary – then try again to see if this has solved the problem.

Is the mower blocked by grass clippings or long grass?

These are two related problems. First, if grass clippings clog the blades, this may cause the engine to stop after running for a while. After checking the problems mentioned above, the next thing to look at is whether the blades are clogged with grass.

If you see that a build-up of clippings is preventing the blades from turning properly, this is another easy problem to fix. Simply clean underneath the mower and remove all lumps of grass and try again.

Sometimes mowers can also stop because the grass you are trying to cut is too long. If your mower stopped as you attempted to cut a longer patch of grass, this could well be what was to blame for the mower breaking down.

Again, check that no grass is clogging up the blades and then adjust the cutting height to a higher setting. You may find that this resolves the problem.

Dull, damaged or loose blades

If your blades are not sharp, are damaged or are not properly attached, this may also cause the engine to stop, especially when cutting thicker grass.

Making sure the blades are in good condition and are properly attached should also be a part of your annual mower tune-up in the spring. Even if they don’t cause the engine to stop, dull blades tear grass rather than cutting and can damage your lawn.

Low oil level

Another quick fix is to check the oil level. If you are running a Lawn mower that is low on oil, this could cause it to cut out after running for a while. If you check the oil and find it is low, simply ensure it is topped up properly and you’ll be good to go.

Compression problems

If you have checked everything above and still can’t discover the problem, you may have a compression problem. This may be because as the mower heats up, the valve changes shape slightly, making the engine less efficient.

lawn, mower, compression, problem

This kind of problem is more difficult to diagnose, and unless you are comfortable tinkering with engines, you might be better off having a professional have a look at your mower for you.

With specialist equipment that you probably won’t have available at home, a professional can identify the problem – and can then resolve the problem. The fix will usually involve realigning the valve lash, something that not everyone is capable of doing by themselves.

Be systematic – work from obvious and simple to more complicated

The key to identifying the problem is being systematic. Start with the most obvious answers – like running out of fuel – and work from there. By eliminating each possible issue one by one, you will eventually be able to find the problem. Once you identify why your mower stopped you can start to think about how to rectify the problem.

Lawnmower won’t start when hot, what to do

On a nice day you take your trustworthy lawn mower outside with the intention to trim your lawn. But somehow your Lawnmower is not running smoothly. You discover that it starts and runs fine when cold. However, starting it again when it is hot is an awful experience.

So the question is why is the mower difficult to start when hot? The main culprit is presumably a failing coil, but there can be other reasons as well. In this article, we will look at the various reasons and how to resolve the situation.

Lawnmower won’t start when hot:

  • A Defective Spark Plug not igniting the fuel
  • High/Low oil level
  • Flawed fins foundation of Overheated Engine
  • Loose nuts and bolts become the basis for leakage of air, causing insufficient air supply to the combustion.
  • A restricted Carburetor due to a faulty auto choke causing engine flooding
  • Problematic Compression due to inoperative valve
  • Presence of alcohol in oil.
  • Faulty ignition coil.

If you are unsure how to troubleshoot the problem, we have broken down the steps in simple and user-friendly instructions.

Common troubleshooting steps when your lawnmower does not start when it is hot:

We have identified seven reasons why your Lawn Mower will not, or is difficult to start when it is hot.

Defective Spark Plug

One of the most common causes of lawnmower engine not cranking is due to a faulty spark plug. There is a minimal gap between the two electrodes of the spark plug. It ignites across that gap and aids the proper air.gasoline mixture to combust and produce power. If this gap does not fulfill the optimum length requirement, the combusted heat widens the gap enough to shut down the mower. The spark plug’s spacing should be fixed according to the details given in your Lawnmower’s manufacturing manual. over, the electrode can also weaken due to wear and tear.

Secondly, the buildup soot can also affect spark creation, and this incomplete ignition gives a hard time for the engine to start when hot. The hot start failures are mostly due to the wrong plug fitting. As we already know that the lengths and heat ranges are specified for spark plugs. Initially, you must inspect the correct plug code with your engine maker. It is an excellent practice to have a spare spark plug with you as it permits you to fix your problem swiftly by restoring the plug with a good one. After examining the sparking plug, if you find its components are not smooth, you will see that the issue is resolved, and your time is saved just by restoring the plug.

You can also not repair a defective spark plug; it is recommended to replace your spark plug at the start of every season.

Faulty plug wire

Plug wires are copper coils looped around a metal core. They work as the high voltage passes through them, searching for ground; positive voltage bounces from the plug electrode to the ground. The spark plug provides a perfect path to ground the voltage and spark ignites. This process took a couple of milliseconds. If we provide a relatively shorter path to the ground for the coil voltage, it will eventually shut down the mower engine because the voltage is not reaching the plug.

Therefore, when we emancipate the bail lever, the coil voltage achieves an ideal track to ground, the engine shuts off suddenly. And everyone wants a short cut whether it is human or machine. The engine will not run intermittently if any abrasion is faced by coil control wire against the ground source.

When the engine starts, massive combustion occurs; high-temperature values cause’ high resistance to the voltage flow, which is why plug wires generally breakdown when the mower is hot and begins operating again when the engine cools down. A precautionary measure always keeps your lawn mowers in ventilated areas because the greatest enemy of plug wire and electrical components is moisture.

Malfunctioned Carburetor

Your engine requires fuel or is getting too much air in a failing carburetor, which is the biggest obstacle in its smooth running? We’ll try to figure it out here.

– Does the engine gets enough fuel

Let us check whether the engine is lacking fuel or not. Lawnmowers may be fitted with different choke types (auto choke, manual choke, or a priming bulb) to start a cold engine and smoothly enrich the fuel mixture. Usually, the auto choke carburetors are prone to supplying extra fuel to the cylinder when starting hot; this phenomenon floods the spark plug with fuel that leads to a no start. The gummed-up and sticky choke located inside the Carburetor is another cause for the hindrance in the starting engine, as it fails to provide the proper fuel ratio. Because it malfunctions, the engine stops working.

– Does the engine gets enough air

Another origin is the lack of ample air or provision of extra air for the flooded engine. The auxiliary air could be from a vacuum leak somewhere in the engine or a carburetor fault, whereas the air’s absence might be due to clogged air filters. For the appropriate AFR, remove the air filter and clean the air filters and chokes; otherwise, the air-fuel ratio is off. Gas engines perform their best when the air-fuel ratio is 14.7 to 1 that mean 14.7 parts of air to 1 part of fuel.

Most lawn mowers will typically have a lever to sway choke; advanced engines now offer a thermostatically controlled automatic choke system. So if you have an engine (auto-choke) with a hot start problem, go ahead and change the Carburetor. It is good to check the choke linkages, thermostat if exits, and clean the choke and air filters. If any of the elements has gone wrong, then the engine will stop. So, it is better to replace the faulty components if cleaning is not successful.

Low oil level

Engine components like coils and plugs will stall when they are above the optimum temperature limit, and the low rise in engine temperature is observed when the oil level is low. Also, an initial start or push cannot be generated if the engine has a critically low oil level to protect the engine because it serves as a basis of coolant and lubricant in the engine. So, whenever you fill the gasoline, make sure you have checked the oil level.

Overheated Engine

Another frequent cause of motor engines not starting when hot is the overheated engine. The lawnmower engine may look small, but it generates a tremendous amount of heat when in operation. To dissipate such extreme heat, it has cooling fins. The sole purpose of the fins is to scatter the inoperable heat. However, when you mow the lawn, the grass clippings and other debris may clog or block the fins. These fins jammed with old grass stuff and debris for an extended period behaves like an insulation blanket, in return overheating the mower.

Lawn Mower Will Not Start?.This is Probably Why! ‘Simple Fixes’

It will eventually stop running, and you will have to wait until the engine cools. The shroud or plastic housing can also trap enough dirt, debris, twigs, and clogs that will eventually lead to the engine shut off. Therefore, cleaning the fins and plastic covers once it is cool prevents the engine from stalling. What you have to do is take away the outer casing of plastic and eradicate the twigs and old grass with compressed air; otherwise, they become the prime source of holding heat close to the engine. When the engine cools, fire it up again, but it perhaps will bog down and stop once more after it overheats.

Air leaks

Loose bolts are commonly the source in a mower engine for shutting down when hot. Let me explain how. Loose bolts are source of air leaks that force an engine to sucks in too much outside air, which abandon the appropriate gas-to-air ratio. When the engine gradually heats up, the remote units expand, and all gaps become larger. Ultimately, you came across the hard running of the engine that will sooner or later shut off.

Therefore, periodically you have to tighten the bolts that keep the motor frame and engine components together to avoid this problem; otherwise, these bolts will probably lose after their overtime use and make the engine of your mower shut off. Check and tighten the bolts, especially those that are linked with the air intake to the engine block. An important tip to check at times the bolts that secure the whole lawnmower frame.

Problematic Compression

The compression issue is prevalent for mowers. It is mostly due to faulty valves. There is an easy way to figure out whether your mower is suffering from low Compression or not. If the mower’s starter rope seems to move easier than it used to be, it indicates the Compression is inadequate along with too large valve clearances, which is the foundation for another problem aggravated by a hot engine. If you do not know about mechanical components, you need to call a professional small engine repair person.

You can refer to a video as attached in this URL that explains the entire process:

Additional causes when your lawn mower does not start when it is hot:

Apart from the earlier mentioned reasons there are two additional reasons that can lead to your mower not, pr difficult starting when it is hot.

Presence of Alcohol in oil.

Sometimes, alcohol in oil may be responsible for shut off. Many manufacturers recommend regular gas or e10 ethanol. As E15 and e85, when set on fire, dissipate much heat so, it will damage the engine because of the low boiling point. And it voids your warranty. You can solve the problem by merely placing a riser or non-metallic shim between the engine and the carb.

Troublesome ignition coil

If your Lawnmower is new, though it is rare but possible, the ignition coil may have gone wrong. But if the mower is 10 years old, the chance is high. The ignition coil and condenser control the flow of electricity to the spark plug. They must be in the best state, and if they are not, they should be replaced on a priority basis; otherwise, it can cause severe problems in starting the engine.

Frequently Asked Questions:

Starter does not crank when hot, what to do?

This issue is the case of heat soaked. It is merely a matter of absorbing and retaining heat from under-hood sources, for instance, from the exhaust. This heat adds up the resistance in the starter’s electrical component, which dramatically reduces the current flow. The limited current in the starter results in improper cranking. Diagnose the battery, cables, and starter before the operation.

Why Honda lawnmower won’t start?

First of all, inspect the spark plug to see if it is damaged by using a spark plug tester. When the engine is cranking, if there is a vital spark, then the spark plug terminals are not defective and vice versa. Replace the spark plug if it’s defective.

A clogged carburetor can restrict the engine from starting, so replace it if it’s not working after cleaning. Insufficient or old fuel (gasoline) may be one reason for carburetor clogging; some components may evaporate with time leaving behind a stickier fluid that causes clogging. Old fuel also causes clogging of the fuel filter. You should check the ignition coil with an ignition coil tester for this issue, replace it if defective.

Torro lawnmower is not starting; what to do?

You should do a thorough cleaning of the mower if your Torro lawnmower is not starting. Do clean your mower’s Carburetor, and at the bottom of the float valve, there is a bolt; pull it out. Clean the tiny holes in that jet and make it sure by passing a wire through the holes. Also, clean the very tiny hole at the brass bolt’s top, which often gets clogged.

Final Remarks:

Indeed, a malfunctioning mower can be a significant source of distress. Being impatient in this case will not help you at all. Follow the systematical approach to solve the problem by checking every possibility mentioned above. The troubleshooting in the steps, as mentioned above, thoroughly takes you through all the issues. over, you will be furnished with the knowledge of what a repair person may need to resolve.