How to Repair a Lawn Mower
- 1 Remove the spark plug before you start any repairs.. It’ll make sure the blade doesn’t start up. Find the spark plug,...
- 2 Replace the air filter if it’s dirty.. A dirty filter can cause your mower to break down. Find the air filter on the...
- 3 Pull out the dipstick to check the oil level.. Add more oil if your mower needs it. Look for a...
How to fix a lawn mower that won't start?
- Check to ensure the power supply is connected. Long power cables can easily be pulled from the outlet while moving the lawnmower around the lawn.
- Reset or replace any defective fuses or breakers in your home. ...
- Disconnect and empty the cuttings bag. The lawnmower may not start if the bag is detected as full by the lawnmower's system.
- Ensure the lawn mower's safety mechanism is not preventing the motor from starting. Many lawn mowers have a safety feature that stops children from starting the motor.
- Disconnect the mower from the power supply and turn it over so you can see the blades. ...
How to clean a lawn mower the right way?
To do this there are a few simple steps:
- With your mower in a normal position, flat on the ground, you’re going to pull on the starter cord, as if you were trying to start your mower. ...
- If you have a brake handle, pull it down.
- Now, pull softly and slowly on the cord. ...
- When you’ve found that point, on the next pull only pull as far as that point. ...
How to care for and maintain your lawn mower?
Steps Download Article
- Tighten or replace any loose nuts / bolts. Sand, prime and paint rusted structural parts. ...
- Remove the spark plug lead from the spark plug and move it away from cylinder head. ...
- Position your mower. ...
- Change or sharpen the blade, if needed. ...
- Check the motor's "air filter" while doing this sort of maintenance. ...
- Change the oil if needed. ...
- Be aware of stale fuel. ...
How do you fix a flooded lawn mower?
How do you fix a flooded lawn mower engine? The conventional remedy for a flooded engine is to let it set for 15 minutes or so to give the carburetor time to dry. You can do this, but there are quicker solutions. Pull off the spark plug wire and unscrew the spark plug with a spark plug wrench. The plug terminals are probably moistened with ...
How do you fix a lawn mower that won't start?
Your Mower Won't Start:Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten.Dirty Air Filter: Clean or replace.Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn't work, you might need a new fuel filter.
Is it worth fixing an old lawn mower?
Just like with your car, getting your mower serviced prevents problems, extends the lifespan, and ensures you get more on a trade-in when you go to upgrade.
Are lawn mowers hard to fix?
Fortunately, it is easy to learn small engine repair and basic lawnmower repair when it comes to simple issues. Most problems can be remedied with a few tools, replacement lawnmower parts, and patience.
How do you fix a lawn mower that won't stay running?
0:166:26How To Fix Lawn Mower That Wont Stay Running! - YouTubeYouTubeStart of suggested clipEnd of suggested clipMy back or look for tools or anything like that. So the kit that I use to rebuild the carburetor.MoreMy back or look for tools or anything like that. So the kit that I use to rebuild the carburetor. And air filter and all cost less than ten dollars off of Amazon.
How many years do lawn mowers last?
around 10 yearsMost mowers will last around 10 years, but that may vary based on how often you use it, the climate you live in, and the size of your lawn. If you notice any of these problems with your mower, it may be time to look into purchasing a new one.
Is it better to repair or replace a lawn mower?
If any of the blades are bent, you'll want to take the machine to a professional repair shop to replace them. Household lawn mowers will need to have their blades sharpened every two years or so, but if you've attempted this more than once, you'll likely be better off replacing them.
Why does my lawn mower only run for a few seconds then dies?
If your lawn mower starts, runs briefly, then dies these are the four most common reasons that's happening: Dirty carburetor / clogged carburetor bowl. Old gasoline that has gone bad. Dirty or defective spark plugs.
What can damage a lawn mower?
Trying to mow over twigs can dull the mower blades, or even damage them if the branches are large. Hitting a stump with a push mower will most likely damage the blade and crankshaft, and hitting a stump on a riding mower can damage blades, mower deck, and spindles.
How do I take apart a lawn mower?
0:207:06Craftsman Lawn Mower Disassembly – Lawn Mower Repair HelpYouTubeStart of suggested clipEnd of suggested clipUse a wood block or a comparable sturdy object to hold the blade in place. Then use a 5/8 inchMoreUse a wood block or a comparable sturdy object to hold the blade in place. Then use a 5/8 inch socket and strike it with a hammer to help loosen the mounting bolt uh.
Why does my lawn mower run for a few minutes then stops?
If you've got a lawn mower that runs for 30 minutes then dies, the most common culprits are: a faulty spark plug or ignition coil, blocked fuel delivery, and air supply problems. A variety of parts are involved here, but the first things you'll want to check out are the spark plug, carburetor, and fuel cap.
How do you fix Briggs and Stratton lawn mower engine that starts and dies?
0:405:16How to fix Briggs and Stratton lawn mower engine that starts and dies.YouTubeStart of suggested clipEnd of suggested clipYou can use a pair of vise grips or a zip tie or whatever you want but I just clamp that right onMoreYou can use a pair of vise grips or a zip tie or whatever you want but I just clamp that right on there and that has blocked off our fuel flow.
How do you clean a lawn mower carburetor without removing it?
Use Carburetor Cleaner Fortunately, you can generally do this without even taking the carburetor out of the engine. Start by purchasing some commercial lawnmower carburetor cleaner, which comes in a simple spray can and will make it easy to clean the inside and outside of the carb.
How to fix a broken lawn mower?
Find the air filter on the side of your mower’s engine. They’re usually covered by a plastic or metal cover. Use either a screwdriver or a wrench to remove the screws or bolts and take off the cover. Pull out the filter and inspect it for cracks, tears, or holes.
How to get rid of old fuel in lawn mower?
1. If it was left in the tank over the winter, it can affect your engine. Use a siphon to safely remove the fuel from the tank of your mower into a fuel-safe container. Once the tank is completely empty, refill it and try starting it up. Check your local guidelines about how to properly dispose of old fuel. Method 6.
What happens if your lawn mower oil is dirty?
Lawn mower oil should be golden brown and there shouldn’t be any dirt or debris floating in it. If your oil is dirty or dark, tip the mower over on it’s side and allow the oil to drain completely into a container.
Why does my lawn mower overheat?
Having too little oil can cause your mower’s engine to overheat and shut down. Make sure you use the oil your owner’s manual says to use. Otherwise, it could damage your mower’s engine. If you don’t have your mower’s owner’s manual, try looking up the make and model online to see what oil to use. Method 4.
How to check oil level on a lawn mower?
Pull the handle to slide out the dip stick. Wipe the stick on a clean cloth, reinsert it into the mower, then slide it out again to check the oil level. If it’s low (there’s usually a line on the dipstick that indicates how much there should be), top it off with the oil specified in your owner’s manual.
What to do if your lawn mower won't start?
1. Lawn Mower That Won’t Start. Save. If your lawnmower won’t start, there are a couple of things that you should check out: Fuel: Your lawn mower will not run on an empty tank. Similarly, if the fuel is older than 30 days, get rid of it before cleaning the carburetor. Gas tank: Inspect the gas tank for any leaks.
Why won't my lawnmower start?
Two culprits are often responsible for this problem. First, the “kill” or ground wire, which may have been disconnected. Second, the ignition switch connections, which may no longer be working due to wear and tear.
Why does my lawnmower vibrate?
Damaged drive belts can cause lawnmowers to vibrate unusually and excessively. Make sure to have it installed properly and keep it in good shape. Worn out or damaged drive belts may need replacement if simple repairs can’t answer your problems.
Why do lawnmowers need batteries?
Battery: Just like cars, lawnmowers rely on batteries to run. At some point, their batteries will give in to wear and tear and need replacing as they lose the capacity to hold or carry a charge. Air filters : Dirty air filters full of dust and dirt can also restrict airflow and prevent your lawnmower from starting.
What is a well managed lawn?
A well-managed lawn is the hallmark of any DIYer’s home. Learning these common issues and lawn mower repair tips for each of them should help make sure that your mower is always in tip-top shape.
Why is my lawn mower slow?
A damaged or dislocated drive belt might be the reason behind your mower’s slow speeds. This drive belt is typically found in the motor casing, though it is best to consult the manual if you’re not sure how to access it.
Why is my mower not pulling the starter rope?
Before you pull the starter rope, make sure the flywheel brake is completely disengaged and doesn’t press against your mower’s handle.
What to do before repairing a lawn mower?
Before doing any repair, don’t forget to wear safety clothing and disconnect the power cable or spark plug from the mower. It will save you from being electrified and any unwanted injury.
How to check if a lawn mower is working?
Check the flywheel of the engine first. Check out the brake of the flywheel whether it is engaged against the mower handle when you pull the cord. When the flywheel is properly working, then check the mower blade. When the grass clippings make a cake-like layer underneath the mower, the blade becomes stuck.
How many exhaust valves does a 4 stroke mower have?
If you have a four-stroke mower engine, you will have a 2 exhaust valve in the engine. Use a commercial exhaust valve cleaner to clean those. These valves should remain dust-free if you want to run the engine flawlessly. And after cleaning the valves, replace those in their previous position.
What is the only power source to start a lawn mower?
1. The engine of the mower. When the engine doesn’t respond properly, it’s really a tough task to start the mower. You know the engine of the mower is the only power source to start the mower. All the other parts supply adequate power to the engine and finally, the engine works to start the mower. To know how to repair the engine ...
Can you move a mower if the wheel is damaged?
A mower really becomes a useless machine if the wheel of the mower is damaged. With a damaged wheel, you can’t move the mower one step further. If the tire or the tube of the wheel is completely damaged, then it is better to replace them. Just remove the wheel from the axle and replace the tire as well as the tube.
Is it hard to repair a lawn mower?
You know repairing a lawnmower is not a difficult task if you just have patience and a proper guideline. And of course, without proper guidelines, it’s actually a troublesome task. You won’t be needed to repair the entire lawnmower at a time. Rather gradually repairing every part helps you to give the mower its older strength.
Is repairing a lawn mower a time consuming task?
Final verdict. Finally, repairing a lawnmower is literally a time-consuming task. It will seem to be a trouble some task if you do this for the first time. But repairing a mower at home really saves your bucks and increases your skills too.
Most Common Problems
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The Right Parts for the Job
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What to do if valves get chipped?
There is nothing that I know you can do once the valves get this bad, and the only thing you can do is buy new ones. The valve heads can also get chipped and will inject fuel at the wrong time and reduce combustion. Once again if the valves get badly chipped you will have to buy a new valve.
How to examine a piston?
To examine the piston you will have to separate the two halves of the engine. Doing this can be dangerous to your engine which I would not recommend. When you separate the two halves do it very slowly prying all around the engine. Once you have separated the two halves disconnect the piston from the crank shaft.
How to remove valves from a car?
To remove the valves you will need to press down the compression springs, and remove the valve spring retainer. Now, putting the valve parts back together again can get a little tricky .You will have to first put the spring and the valve spring retainers back into the engine together.
How to remove flywheel?
The nut which holds the flywheel is on very tightly, and can only be removed by blocking the rotation of the crank shaft with a wrench holding the nut on the blade or by blocking the rotation of the blade. Do not try to hold the flywheel by sticking a crowbar in the teeth, or they might break off. Once you have remove the nut which holds the flywheel in place you will need to gently pry off the flywheel with a crowbar. Keep rotating the flywheel until it can be lifted off easily. Now put the flywheel key somewhere safe. When you want to put the flywheel back on make sure that the key is in the right direction. It is usually marked in some way.
What is the number one culprit with engine trouble?
The Carburetor is the number one culprit with engine trouble. It such a important part of a 4 stroke engine that I will have to use two pages to fully explain how to clean it. The number one thing about repairing a carburetor is that they must be very clean.
Do you disconnect the spark plug on a lawn mower?
Before you do anything with the lawnmower you should disconnect the sparkplug. This will leave no chance of the engine starting with you working on it. It is better to loose a few second than loose a few fingers!
What to do if your lawn mower is slowing down?
If your mower is slowing down, check your drive belt as it might be damaged or dislocated. This part can be found in the motor casing, but if you’re unsure of the location, you can always check and verify using the manual.
What to do if your lawnmower won't run?
Check the following items if your lawnmower won’t run: Air filter: Dirt, dust, and debris might have built up in your air filter which restricts air circulation in your mower. Clean your filter more often or replace it if damaged. Spark plug: Push back the wire onto your spark plug if you notice that it’s unattached.
Why does my lawn mower cut unevenly?
If your lawnmower cuts grass unevenly, it’s usually caused by either of the following: Damaged wheel: If the wheels of your lawnmower are positioned at the same height and your machine still cuts unevenly, one of your wheels might be broken.
What causes a lawn mower to consume too much fuel?
Air filter: If your air filter is blocked, it might cause your lawnmower to consume excessive fuel. Replace it if necessary. Engine compression: Correct the valve clearances if you have low compression pressure in your cylinders. Additionally, broken valve springs can affect your engine, so check them as well.
Why is my lawn mower vibrating?
Dull blade: Your mower’s blade might be chipped, broken, or dull. An unbalanced or bent blade can cause your mower to vibrate too much, which results in the uneven cutting of grass.
Why is my mower oil low?
Engine oil: When your mower’s oil is low, it causes unlubricated friction, which in turn can overheat the parts. Check your oil level regularly to avoid some serious damage to your engine. Blocked parts: All the grass and debris from your mowing can block the cutting decks, cooling fins, and air cleaners.
How to tell if a lawn mower is out of balance?
You can test its balance by simply hanging it on the wall. You’ll notice that the heavier side will drop lower than the other if the weight is uneven.
Why won't my lawn mower start?
Your Mower Won't Start: Be sure you're filled with fresh gas first. Old gas can also lead to problems starting. If you have last season's gas in your mower, drain your fuel tank and fill with fresh gas. Other possible causes include: Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten.
Why is it important to maintain a lawn mower?
Regular lawn mower maintenance helps prevent problems, plus lengthens the life of your lawn equipment. But even with plenty of TLC, normal wear and tear from hours of mowing the lawn increases the chances of hitting a glitch from time to time.
Why does my lawn mower smoke?
Your lawn mower's engine can smoke if your oil chamber is too full, or if oil leaked into the exhaust muffler when you tilted your mower to the side. It's simply burning off while the engine is hot.
Why is my starter rope stuck?
The Starter Rope is Hard to Pull or Seems Stuck: A typical cause for this is that the engine flywheel brake (the bar you hold down on the handle that stops the engine when released) is engaged. Be sure to bring the bar down all the way to the handle before pulling. This can also happen if your mower blade is dragging in grass or clogged ...
