Briggs and Stratton lawn mowers are renowned for their reliability and performance, making them a favorite among homeowners and gardening enthusiasts. However, like any other machine, they can sometimes malfunction or refuse to start, especially after sitting idle for an extended period. If your Briggs and Stratton lawn mower won’t start after sitting, it can be frustrating and may leave you wondering what could be wrong. In this article, we will delve into the possible reasons behind this issue and provide you with practical solutions to get your lawn mower up and running again.
Understanding the Basics of a Briggs and Stratton Lawn Mower
Before we dive into the potential causes of the problem, it’s essential to understand the basic components and functioning of a Briggs and Stratton lawn mower. These mowers are equipped with a small engine, typically a 4-stroke gasoline engine, which powers the cutting blade and propels the mower forward. The engine is designed to be efficient, durable, and easy to maintain. However, like any other engine, it requires regular maintenance and care to ensure optimal performance.
The Importance of Regular Maintenance
Regular maintenance is crucial to prevent problems and ensure your Briggs and Stratton lawn mower starts reliably every time. Failures to maintain the mower can lead to a range of issues, including engine damage, decreased performance, and ultimately, failure to start. Some essential maintenance tasks include changing the oil, cleaning or replacing the air filter, sharpening the cutting blade, and checking the spark plug. Neglecting these tasks can result in your lawn mower refusing to start, especially after sitting idle for an extended period.
Common Causes of Starting Issues
There are several reasons why your Briggs and Stratton lawn mower may not start after sitting. Here are some common causes:
- Stale Fuel: Gasoline can break down over time, leading to engine problems and starting issues.
- Clogged Air Filter: A dirty or clogged air filter can prevent the engine from getting the air it needs to start.
- Bad Spark Plug: A faulty spark plug can prevent the engine from igniting the fuel, making it impossible to start.
- Dead Battery: If your lawn mower has an electric start, a dead battery can prevent the engine from turning over.
- Clogged Fuel Filter: A clogged fuel filter can prevent fuel from reaching the engine, making it difficult or impossible to start.
Troubleshooting and Repair
If your Briggs and Stratton lawn mower won’t start after sitting, there are several steps you can take to troubleshoot and potentially repair the issue. The first step is to check the basics, including the fuel level, air filter, and spark plug. Make sure the fuel tank is full, the air filter is clean, and the spark plug is in good condition. If these basics are in order, you can move on to more complex troubleshooting.
Checking the Fuel System
The fuel system is a common culprit when it comes to starting issues. Stale fuel can cause a range of problems, including engine damage and starting issues. If you suspect that stale fuel is the problem, you can try draining the old fuel and replacing it with fresh gasoline. You should also check the fuel filter and replace it if it’s clogged or dirty.
Draining Old Fuel
Draining old fuel from your lawn mower is a relatively simple process. You’ll need to locate the fuel drain plug, which is usually located at the bottom of the fuel tank. Place a container under the plug to catch the old fuel, then remove the plug and allow the fuel to drain. Once the fuel has drained, replace the plug and fill the tank with fresh gasoline.
Replacing the Fuel Filter
Replacing the fuel filter is also a relatively simple process. You’ll need to locate the fuel filter, which is usually located between the fuel tank and the engine. Remove the filter by twisting it counterclockwise, then discard it and replace it with a new one. Make sure to tighten the new filter securely to prevent leaks.
Preventing Starting Issues in the Future
While troubleshooting and repair can get your lawn mower up and running again, it’s essential to take steps to prevent starting issues in the future. Regular maintenance is key to preventing problems and ensuring your lawn mower starts reliably every time. Here are some tips to help you prevent starting issues:
To prevent starting issues, make sure to store your lawn mower properly during the off-season. This includes draining the fuel tank, cleaning the air filter, and storing the mower in a dry, protected area. You should also check the mower regularly for signs of wear and tear, including damaged or rusty parts, and address any issues promptly.
By following these tips and taking the time to properly maintain your Briggs and Stratton lawn mower, you can help prevent starting issues and ensure your mower runs smoothly and efficiently for years to come. Remember, regular maintenance is essential to preventing problems and ensuring your lawn mower starts reliably every time. Don’t neglect your lawn mower – take the time to properly maintain it, and it will reward you with years of reliable service.
What are the common reasons why a Briggs and Stratton lawn mower won’t start after sitting?
The most common reasons why a Briggs and Stratton lawn mower won’t start after sitting are related to the fuel system, spark plug, and battery. If the lawn mower has been sitting for an extended period, the fuel may have broken down, causing it to become stale and ineffective. This can lead to difficulty starting the engine or failure to start altogether. Additionally, the spark plug may be worn out or fouled, preventing the engine from igniting the fuel. The battery may also be dead or weak, making it difficult to turn the engine over.
To address these issues, it’s essential to check the fuel system first. Drain the old fuel and replace it with fresh gas. Check the spark plug and replace it if necessary. Make sure the spark plug gap is set correctly, as a incorrect gap can prevent the engine from starting. If the lawn mower has an electric start, check the battery and charge it if necessary. Ensure the battery terminals are clean and free of corrosion. By addressing these common issues, you can troubleshoot and potentially fix the problem, getting your Briggs and Stratton lawn mower started again.
How do I troubleshoot a briggs and stratton lawn mower that won’t start after sitting due to fuel issues?
To troubleshoot a Briggs and Stratton lawn mower that won’t start after sitting due to fuel issues, you need to inspect the fuel system thoroughly. Start by checking the fuel tank for any signs of leakage or contamination. If the tank is empty, fill it with fresh gas. If the tank is full, drain the old fuel and replace it with new gas. Next, check the fuel filter and replace it if it’s clogged or dirty. A clogged fuel filter can prevent the engine from getting the fuel it needs to start. You should also inspect the fuel line for any signs of damage or cracks, and replace it if necessary.
After addressing the fuel system, try starting the engine again. If it still doesn’t start, you may need to use a fuel additive to help clean the fuel system and remove any deposits or varnish that may have built up. Be sure to follow the manufacturer’s instructions for the fuel additive, and take necessary safety precautions when working with fuel and fuel systems. If the engine still won’t start, it may be necessary to seek the help of a small engine repair professional or take the lawn mower to a authorized Briggs and Stratton service center for further diagnosis and repair.
Can a bad spark plug cause a briggs and stratton lawn mower to not start after sitting?
Yes, a bad spark plug can definitely cause a Briggs and Stratton lawn mower to not start after sitting. A spark plug that is worn out or fouled can prevent the engine from igniting the fuel, making it difficult or impossible to start. Over time, spark plugs can become worn out or fouled due to carbon buildup, oil deposits, or other contaminants. If the lawn mower has been sitting for an extended period, the spark plug may have become corroded or damaged, preventing it from functioning properly. In this case, replacing the spark plug with a new one can often resolve the issue and get the engine started again.
To replace the spark plug, you’ll need to locate it on the engine and remove the spark plug wire. Use a spark plug socket to remove the old spark plug, and then install a new one. Make sure to gap the new spark plug correctly, as a incorrect gap can prevent the engine from starting. Consult your owner’s manual or the manufacturer’s website for the correct spark plug gap specification for your Briggs and Stratton lawn mower. After replacing the spark plug, try starting the engine again. If it still doesn’t start, you may need to troubleshoot other potential issues, such as a faulty ignition coil or a problem with the fuel system.
What is the best way to store a briggs and stratton lawn mower to prevent starting issues after sitting?
The best way to store a Briggs and Stratton lawn mower to prevent starting issues after sitting is to prepare it properly before storage. Start by draining the fuel tank or using a fuel stabilizer to prevent the fuel from breaking down. You should also clean the lawn mower thoroughly, paying particular attention to the engine and muffler areas. Remove any debris or dirt that may have accumulated, and apply a rust-inhibiting coating to any metal parts. Store the lawn mower in a dry, well-ventilated area, away from direct sunlight and moisture.
When storing the lawn mower, make sure to follow the manufacturer’s storage instructions. Typically, this involves disconnecting the spark plug wire and storing the spark plug in a dry place. You should also check the owner’s manual for any specific storage recommendations, such as applying a rust-inhibiting coating to the cylinder walls or using a storage additive in the fuel tank. By following these steps, you can help prevent starting issues and ensure that your Briggs and Stratton lawn mower is ready to go when you need it again. Regular maintenance and proper storage can help extend the life of your lawn mower and prevent costly repairs.
Can I use a fuel stabilizer to prevent starting issues with my briggs and stratton lawn mower after sitting?
Yes, using a fuel stabilizer can help prevent starting issues with your Briggs and Stratton lawn mower after sitting. A fuel stabilizer is a chemical additive that is designed to prevent fuel breakdown and degradation over time. By adding a fuel stabilizer to the fuel tank, you can help prevent the fuel from becoming stale and ineffective, making it easier to start the engine after storage. Fuel stabilizers typically work by absorbing moisture, preventing corrosion, and breaking down deposits that can form in the fuel system.
When choosing a fuel stabilizer, make sure to select one that is specifically designed for use in small engines like your Briggs and Stratton lawn mower. Follow the manufacturer’s instructions for the correct dosage and application, and make sure to use the stabilizer in conjunction with fresh fuel. It’s also important to note that fuel stabilizers are not a substitute for regular maintenance and proper storage. You should still drain the fuel tank or use a fuel stabilizer, clean the lawn mower, and store it in a dry, well-ventilated area to prevent starting issues and ensure the longevity of your Briggs and Stratton lawn mower.
How often should I maintain my briggs and stratton lawn mower to prevent starting issues after sitting?
To prevent starting issues with your Briggs and Stratton lawn mower after sitting, it’s essential to maintain it regularly. The frequency of maintenance depends on how often you use the lawn mower, but as a general rule, you should perform routine maintenance tasks after every 50 hours of use or at the end of each mowing season. This includes changing the oil, replacing the air filter, and sharpening the blade. You should also check the spark plug and replace it every 100 hours of use or as recommended by the manufacturer.
Regular maintenance can help prevent starting issues by ensuring that the engine is in good working condition. Check the owner’s manual for specific maintenance recommendations, as the maintenance schedule may vary depending on the model and type of lawn mower. Additionally, make sure to follow proper storage procedures, such as draining the fuel tank or using a fuel stabilizer, cleaning the lawn mower, and storing it in a dry, well-ventilated area. By following a regular maintenance schedule and storing your lawn mower properly, you can help prevent starting issues and ensure that your Briggs and Stratton lawn mower is ready to go when you need it.