Why does my lawn mower cut off when I engage the blades?
We believe the plunger was sticking causing it to malfunction, therefore the engine would cut out when the blades were engaged for a few minutes. The mechanic temporarily screwed a bolt in, until we received the new part. So far, so good.
Why does my engine die when I engage the blades?
A dirty air filter will allow the engine to run but too rich. The clogged filter acts like another choke. But when the load is applied to the engine, it is too rich and so it dies. Make sure that you are running the engine at full throttle when you do engage the blades. Was this answer helpful?
What's up when a Husqvarna mower dies when blades are engaged?
So what's up when a Husqvarna mower dies, when the mower blades are engaged? The mower grass box is not fully closed, which causes the safety sensor to remain open. Other possible causes include: That's a list of all the most likely reasons that the engine dies as you apply the blade button or lever.
What happens if you put a dull blade on a mower?
Dull blades don’t cut well and can lead to your mower bogging down in thick grass. Also, dull mower blades damage your turn and can lead to diseases or insect problems. You can look at your turf to get some idea of how well your mower blades are cutting. Sharp mower blades will leave a clean edge on the cut leaves of grass.
Why does my lawn mower lose power when I engage the blades?
If your lawn mower loses power when cutting, the most common causes are a clogged air filter, stale/contaminated gas, blocked fuel filter, too much/too little engine oil, dirty/damaged spark plug, blocked carburetor, clogged cutting deck or a dull blade.
Why does my lawn mower shut off while mowing?
One of the most common reasons that a lawn mower might stall while it is cutting grass is that it is being overworked. This is a mechanism that is intentionally incorporated into the mower to prevent the motor from being blown.
Why does my Honda lawn mower dies when I engage the blades?
Bad fuel or an empty fuel tank can also cause your Honda mower to stall when starting and engaging the blades. Make sure there is fuel in the gas tank before starting. If the mower has not been operated in several months and gas remained in the tank, the fuel could be bad. Replace the old fuel with fresh gas.
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.
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.
Why won't my riding lawn mower keep running?
A full gas tank and oil reservoir are the essential first steps when checking why the lawn mower won't stay running, but the problem could also be a dirty filter, clogged carburetor, improper fuel mixture, or a dirty spark plug.
How do I know if my lawn mower clutch is bad?
If the clutch is squealing or the mower engine starts revving higher, disengage the PTO and turn off the engine. You may have a bad bearing in the clutch, a bad contact surface on the flywheel, or a bad PTO pulley.
Why does my Honda mower keep cutting out?
If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn't effective, rebuild or replace the entire carburetor. The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time.
How do you adjust the carburetor on a Honda lawn mower?
0:504:14Honda Lawn mower REVS UP TOO MUCH or NOT ENOUGH? - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo when you're adjusting this the idea is to hold the shaft that comes out of the engine steady.MoreSo when you're adjusting this the idea is to hold the shaft that comes out of the engine steady. While you rotate this lever here on that shaft whether you rotate it clockwise or counter clockwise.
Why does my lawnmower run for 10 minutes then dies?
As the fuel level drops, a vacuum begins to form in the fuel tank because air can get in to fill the space the consumed fuel occupied. After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die.
What would cause a lawn mower to run for a few minutes then stops?
Mower Cutting Out After 30 Minutes – Why? (The Short Answer) 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.
Can a bad spark plug cause a mower to stall?
In the case of a riding lawnmower, it could take a lot longer for the starter motor to turn the engine over, which could also start to tax it or even affect the life of the battery. A badly degraded or deformed spark plug could cause the lawnmower's engine to stall.
Why does my lawn mower keep stalling out?
If you find that your lawnmower keeps dying, or keeps stalling while cutting grass, then inspect the spark plugs. Look for signs of damage or wear. Something as simple as a cracked porcelain insulator can mean an electrode has been damaged or burned away.
Why does my mower stop when it gets hot?
Your lawnmower may stop running when hot due to an overheated engine, air leaks, a clogged fuel system, or the carburetor not getting enough gas. It is also possible that the engine is not cooling as it runs because of a dirty air filter. Finally, worn-out pistons may also be the problem.
Why does my lawn mower stop after a few minutes?
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.
Improperly Routed Belts
Belts that are routed improperly can cause contact between the engine and the blades, resulting in an engine failure.
Stuck Pulleys
Pulleys are a type of mechanical device used to transmit motion from one moving object to another. The drive belts drive the pulleys and they turn the spindles.
Damaged Safety Switch
Your lawn mower has been made with a safety feature called the seat-switch. This switch will help protect you and you in case of an accident.
Moisture in your gas tank
If your gas tank has some moisture in it, you might have a problem when you start your lawn mower engine. Heavy rains can cause water to get into the gas tank, which will lead to water settling on the bottom of the tank.
Fouled Carburetor
A carburetor is a device that mixes the right ratio of fuel and air so that an engine can work at its best. It’s purpose is to mix the right amount of fuel and air. The carburetor does this by taking in some air and then adding in a specified amount of fuel.
Bad spark plug
Lawnmower engines are designed with an electric spark plug to provide the right amount of energy to start and run smoothly. You will not get all the benefits your lawn needs if you have a spark plug that is not working properly.
Problem with the grass you are cutting
The problem may also lie in the actual grass that you are cutting. You might need to change the height of your blades if you are mowing in a particularly dense, dry area.
Why does my lawn mower lose power?
Another possible reason why your lawn mower loses power is a faulty safety or power takeoff (PTO) switch. Your lawnmower has safety switches designed to shut the mower automatically in case a roll-over happens. This prevents the operator of the machine from getting seriously injured by the mower’s blades.
Why does my riding lawn mower shut off?
A piece of debris or accumulated grass might be interrupting the cycle. Since the pulley is a moving part, it may have become warped or broken over time. This one reason why your riding lawn mower shuts off when its blades engage.
Why does my lawn mower stall?
Going through tall or thick grasses can cause lawn mower engines to stall. If your lawn mower suddenly sputters on the job, check if the engine has enough airflow. Fuel can’t combust without sufficient air, so your lawn mower loses power.
How long does it take for a lawn mower fuel tank to deteriorate?
It takes less than a month for fuel left inside the tank to deteriorate. This “bad” fuel will become a sticky residue that clogs up the fuel filter.
What happens if your mower pulley is not spinning?
If your pulley is unable to spin completely, your engine will likely die every time the blades are engaged. Getting into the mower deck and manually testing the pulley can help you identify the issue.
What is a carburetor on a lawn mower?
A lawn mower’s carburetor is responsible for setting the rate of your mower’s fuel consumption. Carburetors need frequent adjustments to ensure that the amount of fuel matches the engine speed. Adjusting carburetor screws has a significant impact on your engine, so it is best left to the professionals.
Is a lawn mower worth it?
A lawn mower is the ultimate time-saver for gardeners. It can be a significant investment, but it’s worth the price. There’s nothing like relaxing in your garden surrounded by perfectly manicured grass. A lush, green lawn is also guaranteed visitors and neighbors alike.
Tractor
Repair guides for machines designed to move slowly and get big jobs done, including farm vehicles and construction vehicles designed for specialty tasks.
4 Answers
I'dbe checking your battery and also the volt regulator, my J.D. LX188 had the same problem because the battery wasn't charging and needs a fuul charge for the blades to work. check the adjustment of the clutch, it may also be done up too tight .
What happens when a lawn mower fails?
Written by Dennis Howard in Outdoors. When your lawnmower fails to perform, it causes more complications than just a little frustration. Being unable to keep your lawn and landscape in tip-top shape can be a major problem for some homeowners. For many who use a riding mower, a mower that bogs down is more than a nuisance.
Why does my lawn mower bog down?
Several issues with the air and fuel delivery system can cause your mower to bog down when the blades are engaged. Among the most common problems with the air and fuel delivery systems are: Dirty Air Filter – A dirty air filter may stop your engine from running at full speed and cause bogging down.
How to tell if a lawn mower has half the power?
However, with only one cylinder firing, the mower has only half the power. Diagnosing this problem is as easy as checking the spark on each cylinder. Start the lawnmower and remove the sparkplug wire from the first cylinder and check to ensure that the sparkplug is working. Repeat the process on the second cylinder.
What is a riding mower governor?
Your riding lawn mower engine has an automatic governor on the throttle. When the load on the engine increases, this automatic governor opens the throttle. The governor can be a mechanical linkage in the throttle assembly or computer control.
How does a leaky head gasket affect a lawn mower?
Other issues can affect the power output of your lawnmower’s engine. A leaky head gasket can significantly reduce the power your engine produces. Bad rings on the piston or a damaged cylinder head can have the same effect.
Can a broken belt tensioner be replaced?
A broken tensioner is not a common problem but can happen. If the tensioner is broken, the only solution is to replace the part. Replacing a belt tensioner is well within the capabilities of most homeowners. Check the user’s manual of your lawnmower for the correct part number.
Do lawn mowers have two cylinder engines?
Many riding lawnmowers and garden tractors have two-cylinder engines. On some models, there have been problems with the engine running with only one cylinder firing. It isn’t easy to hear any difference in the engine sounds when this happens. However, with only one cylinder firing, the mower has only half the power.
Why does my mower stall?
Although your mower may seem to run OK, stale gas will likely cause it to hesitate and stall when extra demands like run the blades or climb a steep hill are placed on the engine.
What causes a lawn mower engine to run poorly?
Dirty Carburetor. A lawnmower engine is very simple and forgiving. The carburetor that's bolted to it, is neither of those things. It's a finely tuned piece of kit, any slight change in the air/fuel balance will cause the mower engine to run poorly.
Where is the grass bag on a lawn mower?
The grass bag is one of the components that's monitored by the control panel, and its sensor lives at the rear of the mo wer, between the mower and the grass bag. As the grass bag/box closes, the frame of the grass bag presses on the sensor and closes it. This tells the engine control panel that the box is closed and it's safe to engage the blades.
Why does my gasbag not press on the gasbag sensor?
This often happens when you accidentally reverse into something and the grass bag support arms get bent out of shape. This as you've probably guessed, causes the grass bag frame to no longer press on the gasbag sensor.