The production of leaf blowers is a great upgrade from the normal use of rakes and brooms to clear a yard. While rakes come the way they are, leaf blowers are built with features that contribute to their power.

And to enjoy the power and benefits of a leaf blower, you need to learn and know how to fix whatever damage happens to your leaf blower.

Common Reasons Behind Leaf Blower Starts Then Dies

Leaf Blower Troubleshooting

The consistent use of any power tool or object at all will one-day cause damage or deterioration to its effectiveness. It is inevitable. To tackle these problems is the reason why you are reading this article. And to prepare you for the years you will spend with your leaf blower, here are some problems you need to know.

One common problem is the leaf blower dying after starting for some minutes. The reasons for this are not far-fetched.

All you need is attentive scrutiny through the parts of the leaf blower and a few minutes to fix them. When you encounter this problem with your leaf blower, check these parts.

1. A clogged air filter

When debris enters the air filter and blocks the passage from which air passes, it could cause little or no evaporation of the fuel. This in turn causes too much fuel.

Air will also not be able to enter the engine. The engine will stall but when it starts eventually, it will go off again. To fix this, remove the air filter and clean it. In the worst cases, you might need to change the air filter.

2. A clogged fuel filter

A blocked fuel filter limits the amount of fuel that flows into the engine. Luckily, some amount of fuel might enter but because the fuel is too small, the engine will stop in just a couple of seconds after starting up.

A clog in the fuel filter is not only caused by an accumulation of debris but it can also be caused by old fuel which has deteriorated into a thick sludge. The fuel filter can simply be cleaned but if not, it needs to be changed.

3. Spoilt Gaskets

Between the carburetor and insulator are gaskets. They are also found between the insulator and the cylinders. Damaged insulators allow excess fuel to get into the engine causing it to start idly.

It will only run for some seconds and then go off. Damaged gaskets are to be replaced.

Other reasons why your leaf blower starts and then dies are clogged or damaged spark plug or damaged carburetor.

Also Read: How to Clean Echo Leaf Blower Carburetor?

Why Does My Leaf Blower Die When I Give It Gas?

This issue is a gas-powered leaf blower problem. When this happens, there are several things involved. The problem could be with the air filter, the gas filter, the carburetor, or the muffler. The problem is mostly caused by a clog in any or all of those parts.

They can be fixed by you but you need to know which of the parts is the cause first. After finding out the part with the cause, here’s how to fix it.

1. Air Filter

Cause: If an air filter is clogged, the engine may be able to run idly with just enough air. The engine, however, would want extra air as soon as you step on the gas.

However, the engine will sputter to a stop if the air filter is blocked and unable to deliver the amount of oxygen needed to adequately burn a greater gas flow and long run time.

Repair: this case comes with different methods of fixing different gas leaf blowers. This is why every one of them comes with an instruction manual. Check through the manual to see if the air filter can simply be cleaned and put through a maintenance routine.

But if the air filter is too clogged and damaged beyond proper recovery, then you should get a new air filter. Don’t worry, they are affordable and can be found in hardware stores.

2. Fuel Filter

Cause: like the air filter, If the fuel filter is blocked or partially blocked, it may let just enough gas through the system to allow the engine to run at idle. However, if the engine does not obtain more gas and gets too much air after opening up to gas, the engine will sputter to a halt.

Repair: refer to your instruction manual to see if the fuel filter can be cleaned. If it can, detach it from its position and clean it. If it is beyond saving, then change it.

3. The Muffler

Cause: the muffler does the opposite of the air filter. While the air filter lets air in, it lets air out. Although it allows air out of the leaf blower, it can get clogged too. The clog is caused by the accumulation of the by-product, Carbon, which with time builds up inside the muffler.

Repair: when using a leaf blower, there are maintenance routines to follow. Cleaning the muffler is one of them and it should be done consistently. Anyways, if the muffler begins to rust and wear off, it is advisable to get a new one.

4. Carburetor

Cause: the carburetor cannot get clogged but it can begin to malfunction. It is the part in charge of controlling the gas-to-air mixture.

Repair: the problem might be with the gasket inside the carburetor. If it is, the gasket needs to be replaced and to do that, it will require a carb kit and a rebuild.

The carburetor requires more work than the other components. As a result, it is at the bottom of the list. Instead of being disappointed after opening the carburetor to discover it is not the problem, examine the other parts first. Until you see that the fault is not with the others, the carburetor remains untouched.

Also Read: Is A Blower A 2-Cycle Engine?

Why Has My Leaf Blower Stopped Working?

Leaf blowing can be a fun task especially when it is done with the right leaf blower. A faulty leaf blower can however turn your good day into a not-so-good day especially when it stops in the middle of doing the job. Because, it’s either you give up the task or get an alternative, most annoyingly, a rake.

Some users find it even more annoying because it might require that you spend some money. Well, it might please you to know that, they are cheap to fix and can be done by yourself.

There are a number of reasons why this could happen and it would help you if you know them.

  • Carburetor could be damaged:

Air needs to go into the engine for it to work, hence the need for an uninterrupted flow of air. If the air filter is clogged, air cannot pass through into the engine.

If the fuel filter is clogged, fuel cannot flow properly into the engine. And if the carburetor is damaged, the air-to-fuel ratio cannot be controlled. When all of these parts are suffering and cannot perform their tasks, there is no way the leaf blower will start.

The best thing to do is to check them, clean the parts that can be cleaned and if they are damaged beyond repair, replace them. It does not cost much and they are easy to replace.

  • There is old fuel in the tank:

This is one of the main reasons why a leaf blower will not start. A leaf blower that has been left unused for a long with fuel inside cannot come on with the same fuel. The value of the leftover fuel can depreciate and if left for longer, it can form a thick lump.

This could cause the blower to go off or not start at all. If there is old fuel in the tank, don’t even test to see if the blower would start with the fuel, just pour it out.

To prevent any damage to the blower, it is advised that you check the tank first before trying to switch it on.

  • A miscalculation in oil-to-gas Ratio:

It’s quite exhausting hearing and talking about this oil and fuel ratio thing, but fellas, it cannot be overemphasized. It is very necessary, especially for two-stroke engines.

Two-stroke engines require the right amount of oil and fuel to function properly. The right amount is 50 to 1 where the fuel is 50 parts and the oil is one part. Simply put, 2.6 ounces of oil into one gallon of fuel. With this calculation, your blower is sufficiently fueled.

A four-stroke engine does not require this calculation. So to prevent the mistake that could damage your leaf blower, check the manual for the type of engine the blower uses.

  • The recoil starter could be broken:

The recoil spring allows the rewind cord to recoil into a pulley. If the recoil airing is broken the rope will not recoil into the pulley and the blower engine won’t start.

Nothing can be done to fix it unless you change it. Thankfully, recoil springs can be fixed separately. It would however be a lot helpful if the whole recoil starter is replaced.

  • Worn-out spark plug:

A spark plug could be affected by a buildup of carbon, a crack in the porcelain insulator, or a burnt electrode. All thanks to a spark tester, you can find out if the spring plug is still strong and good for use.

A strong spark indicates strength while a weak or no spark at all shows weakness. If the spark does the latter, replace the spark.

How Do I Know If My Blower Is Flooded?

Before a blower can get flooded, it has to be full first. So, when you start the engine and it does not respond, check the tank to see if there is enough fuel inside. If it is full and you can perceive a strong odor of gas, then your blower is flooded.

The spark plug or fuel filter could be affected by the flood. If the fuel flows well to the engine but still won’t start, remove the plug and fuel filter and clean them.

Cleaning the air filter and plug might not heal the flooded engine. When an engine is flooded it is most likely because the fuel-to-air ratio is not balanced. So what you need to do is to let the ratio reach a balance. Open the tank for as long as it can take for fuel to evaporate. It might take 15 to 20 minutes for this to happen.

Why Does My Cordless Leaf Blower Keep Shutting Off?

If your leaf blower keeps shutting off, turn it off and open it to check any of the parts below.

A cordless leaf blower is powered by a battery. This battery needs to be fully charged before use or else the engine will stop working unexpectedly.

But if the leaf blower keeps shutting off when in use, the battery may have a problem. A damaged battery cannot be helped, so you need to replace it.

Another possible cause is the filter. If the filters of the leaf blower are clogged, the engine will not start. Check the filters and clean them. Replace the ones that need to be replaced.

The motor could be another problem. If the motor is a brushless motor and the engine refuses to start, there could be damage to the brush. Damage to the brush requires that the motor be changed.

Leaf Blower Runs For 5 Minutes Then Dies

The most probable cause for this is a bad battery, that is if the leaf blower is a battery-powered one. Over time, the strength of a battery weakens and its normal runtime automatically reduces. So instead of running for the normal 30 minutes, it will run for a shorter time.

Also, it could be because the battery is not fully charged. A charged battery can only deliver the amount it is charged up to and the amount of power it has.

Another possible cause could be a clog in some parts of the leaf blower. When a port is blocked, its ability to perform its engineered task is reduced. This could cause the leaf blower to stall or go off after running for just 5 minutes.


No matter how much or how much maintenance routine you practice on your leaf blower, some problems are bound to occur. Instead of calling or waiting on professionals to come to fix the problem for you, you can do it yourself and save time and more money.

Most of the problem lies with the plug, filters, and carburetor. When checking for the problem, start with the easy-to-access parts then move to the hidden parts.

Victoria Peterson

I am a passionate gardener who wants to help you create and maintain your dream yard. I know that it can be daunting to take on a project like this, but I am here to help. I have been gardening for years and have learned a lot along the way. I want to share my knowledge with you and help you create the perfect yard for your home.

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