Troubleshoot and solve the problem of your lawn mower not starting with this comprehensive guide. Discover common causes and practical solutions to get your lawn mower back in working order. Don’t let a lawn mower that won’t start spoil your yard maintenance plans.
Regular wear and tear of lawn mower from hours of mowing may lead to hitting a glitch from time to time. Regular lawn mower maintenance fixing aren’t complex and can be easily fixed by the owner itself. In this guide we have covered all common faults that are leading to stoppage in your mowing activity.
For a engine to start it requires a fuel and spark. Of you aren’t getting the spark or fuel the machine will never work.
Table of Contents
Why Won’t My Lawn Mower Start? [15 Common Causes & Solutions]
A lawn mower is an essential tool for keeping your yard looking neat and tidy. However, if your lawn mower won’t start, it can be frustrating and stressful. There are several common reasons why a lawn mower may not start, and we’ll cover some of the most common ones below along with their solutions.
Dirty air filter
An air filter is responsible for filtering the air that enters the engine, and a dirty air filter can prevent the engine from starting. To check if this is the problem, remove the air filter and inspect it. If it’s dirty, replace it with a new one. This simple fix can often be the solution to a lawn mower that won’t start.
Bad spark plug
A spark plug is responsible for igniting the fuel in the engine, and a bad spark plug can prevent the engine from starting. To check if this is the problem, remove the spark plug and inspect it. If it’s worn or damaged, replace it with a new one.
Out of fuel
A lawn mower that runs out of fuel will not start, so checking the fuel level is the first step in diagnosing the problem. If the fuel tank is empty, fill it with fresh fuel, and try starting the lawn mower again.
Clogged carburetor
A carburetor is responsible for mixing fuel and air, and a clogged carburetor can prevent the engine from starting. To check if this is the problem, remove the carburetor and clean it. If the carburetor is clogged, clean it thoroughly and reassemble it.
Dead battery
A dead battery can prevent a lawn mower from starting. To check if this is the problem, use a voltmeter to check the battery’s voltage. If the battery is dead, replace it with a new one.
Dirty or clogged fuel filter
A fuel filter is responsible for filtering the fuel that enters the engine, and a dirty or clogged fuel filter can prevent the engine from starting. To check if this is the problem, remove the fuel filter and inspect it. If it’s dirty or clogged, replace it with a new one.
Bad starter
A bad starter can prevent a lawn mower from starting. To check if this is the problem, remove the starter and inspect it. If it’s worn or damaged, replace it with a new one.
Fuel system leaks
A fuel system leak can prevent a lawn mower from starting. To check if this is the problem, inspect the fuel system for leaks. If there are leaks, repair them before attempting to start the lawn mower again.
Blocked fuel line
A blocked fuel line can prevent a lawn mower from starting. To check if this is the problem, inspect the fuel line for blockages. If there are blockages, remove them before attempting to start the lawn mower again.
Dirty oil
Dirty oil can cause a lawn mower to not start or run poorly. Over time, dirt and other contaminants can accumulate in the oil, making it less effective at lubricating the engine. To check if this is the problem, drain the oil and inspect it. If it’s dirty, replace it with fresh oil.
Blocked fuel cap vent
A fuel cap vent that is blocked can prevent air from entering the fuel tank, causing the engine to not start. To check if this is the problem, inspect the fuel cap vent for blockages. If there are blockages, remove them and try starting the lawn mower again.
Flooded engine
A lawn mower engine can become flooded with fuel, preventing it from starting. To check if this is the problem, try pulling the starter cord a few times without turning the engine over. If you see fuel coming out of the carburetor, the engine is flooded. Wait a few minutes and try starting the engine again.
Bad governor
The governor is responsible for controlling the speed of the engine, and a bad governor can prevent the engine from starting. To check if this is the problem, inspect the governor for wear or damage. If the governor is worn or damaged, replace it with a new one.
Bad fuel
Bad fuel can cause a lawn mower engine to not start or run poorly. To check if this is the problem, drain the fuel tank and refill it with fresh fuel. If this doesn’t solve the problem, try switching to a different brand of fuel.
Poor compression
Poor compression can prevent a lawn mower engine from starting. To check if this is the problem, use a compression tester to check the engine’s compression. If the compression is low, the engine may need to be rebuilt or replaced.
In conclusion, a lawn mower that won’t start can have many potential causes, ranging from simple issues like a dirty air filter or out of fuel to more complex problems like a bad governor or poor compression. By diagnosing and fixing the problem, you can get your lawn mower back up and running, so you can keep your yard looking neat and tidy.
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Conclusion
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