Why Briggs and Stratton Mower Won’t Start After Running?

briggs and stratton lawn mower won't start after running

Is your Brrigs and Stratton lawn mower not starting after running?

Well, it is a common Briggs and Stratton lawn mower problem that many users face after a certain period.

But, why a Briggs and Stratton lawn mower won’t start after running?

The reasons are the lack of fuel, dirty or disconnected spark plug, fuel not reaching the engine, weak ignition coil, and stuck fuel cap.

I can relate with your worries and that’s why the reasons and solutions of a Briggs and Stratton lawn mower won’t start after running are depicted here.

So, let’s get started.

Quick Overview: Briggs and Stratton Lawn Mower Won’t Start After Running?

To make a quick discovery of the reasons and fixes, a chart is included here with their list.

Don’t forget to give it a check.

Serial            Reasons                        Solutions
1Lack of fuelAdd the needed amount of fuel
2Dirty or disconnected spark plugClean and engage the spark plug
3Fuel not reaching engineCheck carburetor and fuel filter
4Weak ignition coilGet a new ignition coil
5Stuck fuel capPurify or replace the fuel cap

Detailed Solutions: Briggs And Stratton Lawn Mower Won’t Start After Running?

Many problems can come up in a Briggs and Stratton lawn mower, but refusing to start after running is a frequent one.

The causes are simple and too easy to solve and you can uproot them by following this section.

Reason 1: Lack of Fuel

The lack of fuel is the most common reason behind a Briggs and Stratton lawn mower won’t start after running.

Sometimes, you can forget about giving a look at the leftover fuel level. This becomes a barrier and the mower won’t start as soon as the fuel reaches the lowest average level.

Solution: Add the Needed Amount of Fuel

I recommend taking a glance at the amount of fuel before every start.

So, check it out and add new fuel as much as needed to reach the recommended amount. You can add a fuel stabilizer to enhance its freshness.

Reason 2: Dirty or Disconnected Spark Plug

Briggs and Stratton lawn mower spark plug problem is a mostly seen reason that I experienced. Because it gets dirty if you forget to clean it a few times.

Also, as the mower does many jobs, with the shakings, the plug tends to lose connection. Its cable gets loose or completely out of the plug. Thus, the mower doesn’t start after running.

Solution: Clean and Engage the Spark Plug

In the case of a spark plug, I always prefer it should be neat and clean. Moreover, you can engage it carefully and always check it before starting the mower.

Reason 3: Fuel Not Reaching Engine

Engine not getting fuel can be an interruption for the mower to start. The carburetor can have malfunctions that cause the fuel to stay right there.

In some cases, the fuel filter can have a condition of badly clogging due to excessive dirt and debris. Not purifying it for an extended period can let it occur.

Solution: Check Carburetor and Fuel Filter

For fixing a carburetor, all you have to do is tapping it on each side and the gas staying inside it will be released. Thus, the fuel can go to the engine.

Then, perform an inspection of the fuel filter and try cleaning it. Installing a new one is better if the filter is clogged.

Reason 4: Weak Ignition Coil

The need of an ignition coil in starting the Briggs and Stratton lawn mower is unavoidable. But, as it works with electric power, spark plug and the engine, it can get weak.

Day by day, it loses the effectiveness of transforming the sparks into the power that the engine demands. Due to its slow functioning, the Briggs and Stratton mower fails to start.

Solution: Get A New Coil

If you ask about repairing an ignition coil, I won’t support that. Because an old ignition coil is not repairable and doesn’t get back the efficiency. So, getting a new ignition coil fits the best.

Reason 5: Stuck Fuel Cap

I guess you have applied all the remedies till now but the problem is still there. At this point, the fuel cap can be the culprit if it is badly stuck.

Because a stuck fuel cap is not able to vent the unwanted pressure from the fuel tank. And, it influences the fuel and stops it from heading towards the engine.

Solution: Purify or Replace the Cap

Inspecting the fuel cap can tell if it is stuck or bad. You can try purifying it to release the build up residues and place it in its position.

In case the cap is not cleanable, I recommend changing it with a new one of similar size.

Why Does My Briggs and Stratton Lawn Mower Not Start After Running?

Answer: Over time, the spark plug and ignition coil get less efficient and it affects the Briggs and Stratton lawn mower. Also, a stuck fuel cap can prevent it from starting after a run.

Why Does My Briggs and Stratton Lawn Mower Take a While to Start?

Answer: In case the Briggs and Stratton lawn mower is taking a while to start, the spark plug can have defects. Whenever it takes more time to deliver sparks, the engine starts late.

Final Words

On the whole, to keep a Briggs and Stratton lawn mower healthy, there is no alternative to its regular take care.

However, the tips mentioned in the article, can solve the issue of Briggs and Stratton lawn mower won’t start after running. For better troubleshooting, check out the Briggs and Stratton throttle spring diagram.

Scott McFadden

Hi! It's Scott McFadden. I'm obsessed with farming. All my life I grew up around my grandfather and his farmhouse. I cannot put in words how they inspired me to farm. From taking care of cows to looking after our gardens I have learned a lot. It would be a real pleasure if I get to share this with you.

Recent Posts