The first warm days of spring are upon us, the grass is growing, and your lawn mower is calling for action. But before you can enjoy the satisfying hum of your Briggs & Stratton engine and the freshly cut scent of green blades, there’s one crucial step: starting it. This guide will walk you through the process, from preparing your mower to troubleshooting common starting problems.
A Quick Overview
Starting a Briggs & Stratton lawn mower is generally a straightforward process. It involves a few key steps: ensuring the mower is in a safe position, priming the engine, setting the choke, and pulling the starter cord. We’ll cover each step in detail, along with tips for troubleshooting any issues that may arise.
Preparing Your Mower for Starting
Before you even think about pulling the starter cord, there are a few basic things you need to do to ensure a smooth start and safe operation:
1. Safety First:
- Fuel Up: Make sure your mower has enough fresh, clean fuel. If you’re unsure about the fuel’s age, it’s best to empty the tank and refill it with fresh gas.
- Check the Oil: Briggs & Stratton engines require regular oil changes. Consult your owner’s manual for the recommended oil type and frequency.
- Clean the Spark Plug: A clean spark plug is essential for proper ignition. Use a wire brush to clean the plug’s electrodes, and replace the plug if it’s worn or damaged.
2. Positioning and Prepping:
- Level Ground: Position the mower on a flat, level surface. This helps ensure the fuel flows properly and the engine starts smoothly.
- Disengage the Blades: Make sure the mower blade is disengaged. This is crucial for safety, as starting the engine with the blades engaged could cause serious injury.
Starting Your Briggs & Stratton Mower:
1. Priming the Engine:
- Purpose: Priming the engine introduces a small amount of fuel into the carburetor. This helps with starting, especially if the engine has been sitting for a while.
- Locate the Primer: The primer button is typically located on the carburetor, near the air filter.
- Pumping: Press the primer button 3-5 times. The number of pumps may vary depending on your mower model. Refer to your owner’s manual for specific instructions.
2. Setting the Choke:
- Purpose: The choke restricts airflow to the engine, enriching the fuel mixture and aiding in starting.
- Locate the Choke Lever: The choke lever is usually on the carburetor or near the handlebars.
- Set to Choke Position: Engage the choke fully, which is often marked with a symbol of a closed hand or a “choke” label.
3. Starting the Engine:
- Locate the Starter Cord: The starter cord is typically attached to the top of the engine.
- Pulling the Cord: Grasp the starter cord firmly and pull it quickly and smoothly. The engine should begin to sputter and then catch.
- Adjusting the Choke: Once the engine is running, gradually move the choke lever to the “run” position. You’ll hear the engine speed up as the choke is released.
Troubleshooting Common Starting Problems:
If your Briggs & Stratton lawn mower doesn’t start, don’t panic! Here are some common issues and how to fix them:
1. No Spark:
- Check the Spark Plug: A faulty spark plug can prevent the engine from starting.
- Test the Spark Plug: Remove the spark plug, attach it to a spark plug tester, and hold it near the engine block. You should see a bright blue spark when you pull the starter cord.
- Replace if Needed: If there’s no spark, replace the spark plug with a new one.
2. Fuel Issues:
- Empty Fuel Tank: Double-check that the fuel tank is not empty.
- Fuel Line Obstruction: Check for any clogs or blockages in the fuel line.
- Bad Fuel: If the fuel is old or contaminated, it may be preventing the engine from running. Drain the tank and refill it with fresh, clean fuel.
3. Air Filter Problems:
- Dirty Air Filter: A dirty air filter restricts airflow to the engine, making it difficult to start.
- Clean or Replace: Clean the air filter with a vacuum cleaner or a gentle blow of compressed air. If it’s beyond cleaning, replace it with a new filter.
4. Engine Flooding:
- Causes: Flooding occurs when too much fuel is injected into the engine, often due to over-priming or a faulty carburetor.
- Solution: Try starting the engine without priming. If that doesn’t work, remove the spark plug and dry it with a clean cloth. Then, let the excess fuel evaporate for a few minutes before reinstalling the spark plug.
Tips for Maintaining Your Briggs & Stratton Lawn Mower:
- Regular Maintenance: Keep your mower in top shape by performing routine maintenance, such as oil changes, air filter cleaning, and spark plug replacement.
- Clean the Deck: Regularly clean the mower deck to prevent grass buildup. This helps improve airflow and prevent rust.
- Follow the Owner’s Manual: Consult your owner’s manual for specific maintenance schedules and recommended procedures.
Conclusion:
Starting your Briggs & Stratton lawn mower is a simple process that can be mastered with a little practice. By following the steps outlined in this guide, you can ensure a smooth start and enjoy the benefits of a well-maintained lawn mower. Remember to practice safe operation, perform regular maintenance, and refer to your owner’s manual for any specific instructions or troubleshooting tips.
FAQ
FAQ 1: What type of fuel should I use in my Briggs & Stratton lawn mower?
You should always use fresh, clean gasoline with an octane rating of 87 or higher in your Briggs & Stratton lawn mower. Avoid using gasoline that has been sitting for more than 30 days, as it can deteriorate and cause engine problems. It’s also important to use a fuel stabilizer to help prevent the gasoline from going bad.
The fuel should be mixed with a fuel stabilizer to prolong its shelf life. You can find fuel stabilizers at most hardware and auto parts stores.
FAQ 2: How much oil should I put in my Briggs & Stratton lawn mower?
The amount of oil you need for your Briggs & Stratton lawn mower will depend on the model of your engine. You can find the recommended oil capacity in the owner’s manual or on a sticker on the mower itself. It’s essential to use the correct type and amount of oil to ensure your engine runs smoothly and lasts longer.
Overfilling the engine with oil can lead to serious damage. Always check the dipstick before adding any oil and only add the amount required to reach the full mark.
FAQ 3: What should I do if my Briggs & Stratton lawn mower won’t start?
There are many reasons why your Briggs & Stratton lawn mower might not start. First, ensure the fuel is fresh and that the fuel lines are not clogged. Also, check the spark plug to see if it is dirty or damaged.
You can also check the air filter to see if it is dirty or obstructed. If all these elements are in good condition, you may need to prime the carburetor or check the choke settings. If none of these solutions work, it’s best to contact a professional mechanic for help.
FAQ 4: How do I change the spark plug in my Briggs & Stratton lawn mower?
To change the spark plug in your Briggs & Stratton lawn mower, you’ll first need to locate the spark plug, which is usually found on the top of the engine. Once you’ve located it, use a wrench to loosen and remove the old spark plug.
Then, thread in the new spark plug by hand until it is snug, and then use the wrench to tighten it an additional 1/8 to 1/4 turn. Be careful not to overtighten it, as this can damage the spark plug threads.
FAQ 5: How often should I change the air filter in my Briggs & Stratton lawn mower?
You should change the air filter in your Briggs & Stratton lawn mower at least once a year, or more often if you use your mower frequently or in dusty conditions. A dirty air filter can restrict airflow to the engine, which can cause it to run poorly and reduce fuel efficiency.
To change the air filter, simply remove the old filter and replace it with a new one. Make sure that the new filter is the correct size and type for your mower.
FAQ 6: What does it mean if my Briggs & Stratton lawn mower is smoking?
If your Briggs & Stratton lawn mower is smoking, it could be a sign of a serious problem. One possible cause is that the engine is burning oil. This can happen if the piston rings are worn or if the valve seals are leaking.
Another possibility is that the carburetor is flooding, which can cause excess fuel to be burned and produce smoke. If your mower is smoking, it’s best to have it checked by a professional mechanic to diagnose the problem.
FAQ 7: How do I store my Briggs & Stratton lawn mower for the winter?
When storing your Briggs & Stratton lawn mower for the winter, it’s important to properly prepare it. First, drain the fuel tank and carburetor. Then, change the oil and clean the mower.
After cleaning, cover the mower with a tarp or store it in a dry place. This will help to prevent rust and corrosion. If you are storing the mower outdoors, make sure it is elevated to protect it from moisture.