Mountfield Hedge Trimmer Won T Start [Proven Fixes!]

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Updated in June 2025 | By John

There’s nothing more frustrating than a hedge trimmer that won’t start. It can be a major inconvenience, especially if you’re in the middle of a project. But don’t worry, there’s usually an easy fix. In this guide, I’ll walk you through the steps to troubleshoot a Mountfield hedge trimmer that won’t start. I’ll also provide tips on how to prevent this issue from happening in the future. So if your hedge trimmer is giving you trouble, read on for help!

Why Mountfield Hedge Trimmer Won T Start

No fuel

The most common reason for a hedge trimmer not starting is that there is no fuel in the tank. Make sure the tank is full and that the fuel valve is open.

Bad spark plug

If the spark plug is bad, the engine will not be able to start. Check the spark plug for damage and replace it if necessary.

Dirty air filter

A dirty air filter can restrict airflow to the engine, causing it to stall or not start. Clean or replace the air filter as needed.

Clogged fuel filter

A clogged fuel filter can prevent fuel from reaching the engine, causing it to stall or not start. Clean or replace the fuel filter as needed.

Weak battery

A weak battery may not have enough power to start the engine. Charge the battery or replace it if necessary.

Engine flooded

If the engine is flooded, it will not start because there is too much fuel in the cylinder. Turn the engine off and wait a few minutes for the fuel to evaporate. Then try starting the engine again.

How to Troubleshoot: Mountfield Hedge Trimmer Won’t Start

Symptoms

There are a few different symptoms that can indicate that your Mountfield hedge trimmer is not starting properly. These include:

The engine does not turn over when you press the start button.
The engine starts but dies immediately.
The engine runs but does not produce enough power to trim hedges.
The engine runs but makes a strange noise.

Causes

There are a number of different things that could cause your Mountfield hedge trimmer to not start properly. These include:

A dirty or clogged air filter.
A faulty spark plug.
A bad fuel line.
A faulty carburetor.
A problem with the ignition system.

Solutions

The solution to your Mountfield hedge trimmer not starting properly will depend on the underlying cause of the problem. Here are some troubleshooting tips to help you get your hedge trimmer up and running again:

Check the air filter:
If the air filter is dirty or clogged, it can restrict airflow to the engine and cause it to not start properly. To clean the air filter, remove it from the engine and gently tap it against a hard surface to remove any dirt or debris. You can also use a vacuum cleaner to clean the air filter.

Check the spark plug:
A faulty spark plug can also cause your hedge trimmer to not start properly. To check the spark plug, remove it from the engine and visually inspect it for damage. If the spark plug is damaged, replace it with a new one.

Check the fuel line:
A bad fuel line can prevent fuel from reaching the engine, which can cause it to not start properly. To check the fuel line, inspect it for leaks or cracks. If you find a leak or crack, replace the fuel line.

Check the carburetor:
A faulty carburetor can cause your hedge trimmer to not start properly. To check the carburetor, remove it from the engine and clean it with carburetor cleaner. You can also adjust the carburetor’s settings to ensure that it is properly tuned.

Check the ignition system:
A problem with the ignition system can also cause your hedge trimmer to not start properly. To check the ignition system, inspect the spark plug wires for damage or corrosion. You can also test the spark plug wires with a spark tester. If you find a problem with the ignition system, have it repaired or replaced.

Prevention

You can help prevent your Mountfield hedge trimmer from not starting properly by following these tips:

Keep the air filter clean and free of debris.
Replace the spark plug regularly.
Inspect the fuel line for leaks or cracks.
Clean the carburetor regularly.
Have the ignition system checked and repaired or replaced as needed.

By following these tips, you can help keep your Mountfield hedge trimmer running smoothly and prevent it from not starting properly.

Also Read THis: Mountfield Petrol Hedge Trimmer Won T Start

FAQs: Mountfield Hedge Trimmer Won’t Start

Why won’t my Mountfield hedge trimmer start?

There are a few possible reasons why your Mountfield hedge trimmer won’t start.

The engine is not getting fuel: Make sure that the fuel tank is full and that the fuel line is not kinked or blocked.

The spark plug is not firing: Check the spark plug and replace it if it is damaged or fouled.

The air filter is dirty: Clean or replace the air filter to improve airflow to the engine.

The carburetor is dirty or out of adjustment: Clean or adjust the carburetor to ensure that it is properly metering fuel and air to the engine.

The engine is flooded: If the engine has been flooded, try turning the choke off and cranking the engine for a few seconds. If the engine still doesn’t start, wait a few minutes and try again.

What should I do if my Mountfield hedge trimmer starts but dies immediately?

If your Mountfield hedge trimmer starts but dies immediately, there are a few possible causes.

The spark plug is not firing: Check the spark plug and replace it if it is damaged or fouled.

The air filter is dirty: Clean or replace the air filter to improve airflow to the engine.

The carburetor is dirty or out of adjustment: Clean or adjust the carburetor to ensure that it is properly metering fuel and air to the engine.

The engine is flooded: If the engine has been flooded, try turning the choke off and cranking the engine for a few seconds. If the engine still doesn’t start, wait a few minutes and try again.

What should I do if my Mountfield hedge trimmer is running but not cutting?

If your Mountfield hedge trimmer is running but not cutting, there are a few possible causes.

The blade is dull: Sharpen the blade to improve its cutting performance.

The blade is clogged with debris: Clean the blade to remove any debris that may be preventing it from cutting properly.

The blade is not aligned properly: Align the blade so that it is parallel to the cutting bar.

The engine is not powerful enough: If the engine is underpowered, it may not be able to provide enough power to the blade to cut through thick material.

How can I prevent my Mountfield hedge trimmer from starting problems?

To prevent your Mountfield hedge trimmer from starting problems, you can follow these tips:

Keep the fuel tank full: A full fuel tank will help to prevent the formation of condensation, which can lead to problems with starting.

Clean the air filter regularly: A dirty air filter can restrict airflow to the engine, which can lead to problems with starting.

Adjust the carburetor regularly: A properly adjusted carburetor will help to ensure that the engine is getting the correct mixture of fuel and air.

Store the hedge trimmer properly: When storing the hedge trimmer, be sure to empty the fuel tank and run the engine until it stops. This will help to prevent the formation of condensation in the fuel system.

What should I do if I can’t fix my Mountfield hedge trimmer?

If you can’t fix your Mountfield hedge trimmer, you can take it to a qualified service center for repairs. You can also contact the manufacturer for assistance.

About The Author

I am John, and I am the creator of this website. I have been in the woodworking industry for about 5 years. I developed my passion for DIY projects around the house when I was in high school. I have discovered a new appreciation for those who have the experience to pass along their expertise. They know what works best and are able to help others. I am proud to be among them.

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