6 Reasons Why Your Lawn Mower Stalls When Cutting Grass
There are a variety of reasons why a lawnmower may stall while mowing grass, and the best way to approach the problem is to start with the simplest and least expensive fixes first, which can save you a lot of time and money.
1. Being Overworked
One of the most common causes of a lawn mower stalling while cutting grass is that it is overworked.
Solution:
Lifting the mower before working on a new area and then slowly lowering it onto the next spot is one way to help reduce the stress on the motor.
3. Grass is Wet
A build-up of grass on the underside of the mower could be a sign that something is wrong with the motor.
4. Low Fuel
Before starting a lawnmower, check the gas tank to see how much gas is in it; a lawnmower can start and run in idle with very little gas in the tank; if it isn’t full enough for you to see the gas, add a liter.
5. Issue With Fuel Line
There could be a buildup in the line that is causing the engine to run out of fuel. If you do not have experience working with fuel lines, it is probably best to hire a professional to investigate the problem. This will save you time and money.
6. Dirty Air Filter
Every lawnmower has an air filter that allows air to enter the engine while keeping it clean of dirt and debris; a common problem is the airflow reaching the engine. The air filter can usually be found at local hardware stores.
Solution:
Remove the shroud as well as the air filter.
In Conclusion
If you are not experienced with lawnmowers, avoid attempting to repair basic engine problems. Having professionals handle the repairs will save you money because the parts are typically inexpensive, and the savings will be passed on to you in the end.
Why did my riding mower stop cutting?
If the riding lawn mower starts but the blades don’t cut the grass, the problem could be with the blade belt, which you should inspect and replace if it’s worn or broken. Check the PTO switch and the electric clutch on riding mowers that use a PTO switch to activate the blades.
Why would a lawn mower suddenly stop working?
Clean off debris, re-connect, and tighten any loose, dirty, or disconnected spark plugs in your lawn mower. 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 may need a new fuel filter.
Why does my lawn mower stop running after a few minutes?
Most lawnmowers have a vented gas cap, which acts as a check valve, allowing air into the fuel tank while keeping gas fumes out. After about 10 or 15 minutes, the vacuum builds up to the point where fuel stops flowing to the carburetor and the lawnmower dies.
Why does my zero turn mower shut off while mowing?
Overworked. One of the most common reasons for a lawn mower to stall while cutting grass is that it is overworked, which is a mechanism built into the mower to keep the motor from blowing out.
Why is my mower leaving lines?
Your lawnmower’s cutting blades may be dull or otherwise damaged, resulting in rows or streaks of uncut grass. Dull blades are the result of normal wear and tear from mowing; occasionally, one or both blades become warped, curled, or nicked; in any of these cases, it’s best to replace the blades.
Why won’t my riding lawn mower blades engage?
Your riding mower blades will not engage if the clutches are broken and the cable is damaged; additionally, if the deck belt is damaged, the pulley system is frozen, and the battery has a weak charge, your riding mower blades will most likely not engage.
Why is my push lawn mower turning over but not starting?
Q. Why is my lawn mower turning over but not starting? The most likely cause is bad gas, which will eventually break down after sitting for several months during the off-season, clogging the fuel line and carburetor in the engine and preventing it from starting.
Will a lawn mower start if the spark plug is bad?
A dirty or fouled spark plug can cause your lawn mower to not start, as well as loosening and causing problems. If the spark plug appears to be seated correctly but the engine still won’t start, a new one may be required.
Why does my lawn mower sound like it’s dying?
A faulty or improperly adjusted spark plug can also cause a lawnmower engine to rev and die. Check the spark plug to see if the wire is securely connected and not wobbling around, and if it is, remove the spark plug to see if it is covered in corrosion.
Why does my lawn mower quit running when it gets hot?
Air leaks cause an engine to draw in too much outside air, causing the gasoline-to-air ratio to be thrown off. As the engine heats up, parts expand, and all tiny gaps become larger, resulting in a poorly running engine that eventually stops. Loose bolts are a common cause of a mower engine shutting down when it gets too hot.
What do you do when your lawn mower keeps shutting off?
Clean off debris, re-connect, and tighten any loose, dirty, or disconnected spark plugs in your lawn mower. 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 may need a new fuel filter.
Why does my Ryobi mower keep dying?
The alternator provides voltage to the lawn mower while the engine is running and also recharges the battery. Common solutions for: Ryobi Lawn Mower Battery Keeps Dying If the battery still won’t hold a charge, this indicates that the battery is defective and will need to be replaced.