Spring has sprung, the sun is shining, and your lawn is begging for a trim. But before you can unleash the power of your trusty lawn mower, you need to get it started. And if you’re dealing with a Briggs and Stratton engine, there are a few key things to know.
This comprehensive guide will walk you through the essential steps of starting a Briggs and Stratton lawn mower, from the basics of fuel and spark plugs to troubleshooting common issues. We’ll also cover some safety tips to keep you and your lawn mower in tip-top shape. So, grab your tools, and let’s get started!
A Quick Overview of Briggs and Stratton Lawn Mower Start-up
Starting a Briggs and Stratton lawn mower usually involves a few simple steps:
- Prepare the mower: Check the fuel level, ensure the choke is engaged, and verify the spark plug is connected.
- Prime the engine: If needed, prime the carburetor with a few pumps of the primer bulb.
- Start the engine: Engage the starter, either by pulling the cord or turning the key, and let the engine warm up.
- Disengage the choke: Once the engine is running smoothly, disengage the choke.
While this may seem straightforward, there are several nuances and potential troubleshooting steps to consider. Let’s delve into the details below.
Preparing Your Briggs and Stratton Lawn Mower
Before you can even think about starting your lawn mower, it’s essential to make sure it’s in good working order. Here’s a checklist of things to inspect:
Fuel Level and Quality
- Check the fuel tank: Ensure you have enough fuel. The amount needed will vary depending on your mower’s tank size and the size of your yard.
- Use fresh fuel: Old gasoline can gum up your engine. If the fuel in your tank is more than a few months old, it’s best to drain it and replace it with fresh gasoline. You can also use a fuel stabilizer to extend the life of your fuel.
- Check for leaks: Inspect the fuel lines for any signs of leaks or cracks. If you find any, replace the damaged lines as soon as possible.
Spark Plug
- Inspect the spark plug: The spark plug is crucial for igniting the fuel-air mixture. A worn or damaged spark plug can prevent your mower from starting.
- To inspect the spark plug: Locate it on the engine (usually near the top). Unscrew it, and use a wire brush to clean off any carbon buildup.
- Check the gap: The spark plug gap should be set according to the manufacturer’s specifications (typically 0.030″ to 0.035″). If the gap is incorrect, you can adjust it with a spark plug gap tool.
- Replace if needed: If the spark plug is severely worn or damaged, replace it with a new one.
Air Filter
- Check the air filter: A dirty air filter restricts airflow to the engine, making it harder to start.
- To clean the air filter: Remove it from the mower and tap it against a hard surface to remove any loose dirt. You can also wash a foam air filter with soap and water.
- Replace if necessary: If the air filter is heavily clogged, it’s best to replace it with a new one.
Blade
- Inspect the blade: Make sure your mower blade is sharp and free of damage.
- Sharpen or replace: A dull or damaged blade can make mowing difficult and can also damage your lawn.
- Safety First: Always wear heavy-duty gloves and protective eyewear when handling the blade.
Starting Your Briggs and Stratton Lawn Mower
With your mower prepped, it’s time to fire it up.
Cold Start
- Engage the choke: The choke restricts airflow to the engine, allowing for a richer fuel mixture for easier starting in cold conditions. Locate the choke lever on the engine and move it to the “choke” or “on” position.
- Prime the carburetor: This is optional for some models but crucial for others. A prime bulb is usually located on the carburetor. Press it a few times to introduce fuel into the carburetor.
- Start the engine: Pull the starter cord (for recoil-start mowers) or turn the key (for electric-start mowers).
- Let it warm up: Allow the engine to run for a few minutes with the choke engaged.
- Disengage the choke: Once the engine is running smoothly, slowly move the choke lever to the “off” position.
Warm Start
If the engine is already warm, you can skip the choke and priming steps. Simply engage the starter and allow the engine to turn over.
Troubleshooting Common Starting Issues
Even after following these steps, you might encounter some problems. Here are some common issues and solutions:
Engine Won’t Turn Over
- Dead battery: Check if your battery is charged. You may need to jump-start it or replace it.
- Faulty ignition system: Inspect the spark plug wires for damage or loose connections. If needed, replace faulty wires.
- Faulty starter: Check the starter motor for signs of damage.
Engine Turns Over But Won’t Start
- No fuel: Make sure your fuel tank has enough fuel and that the fuel lines are not clogged.
- Fuel filter: Inspect the fuel filter for dirt or debris. If necessary, clean or replace it.
- Spark plug issues: Check the spark plug for damage or carbon buildup.
Engine Starts But Immediately Dies
- Faulty choke: The choke might not be working correctly.
- Air leak: Inspect the air filter and air intake for leaks.
- Fuel problems: Check the fuel lines for blockages.
Safety Tips for Using Your Lawn Mower
Safety is always paramount when operating any machinery, especially powerful ones like lawn mowers. Follow these tips to ensure a safe and enjoyable mowing experience:
- Wear appropriate clothing: This includes sturdy shoes, long pants, and protective eyewear.
- Inspect the area: Clear the mowing area of any debris, toys, or other obstacles.
- Never mow uphill: Mow uphill to avoid losing control of the mower.
- Never refuel while hot: Allow the engine to cool down completely before refueling.
- Keep children and pets away: Never allow children or pets near the mowing area.
- Use caution around slopes: Mow slowly and cautiously on inclines.
- Follow the manufacturer’s instructions: Always refer to the user manual for detailed safety guidelines.
Conclusion
Starting a Briggs and Stratton lawn mower doesn’t have to be a daunting task. By following these simple steps and paying attention to the key components of your mower, you can ensure a smooth and reliable start every time. Remember to prioritize safety and always double-check your equipment before starting. Enjoy a fresh-cut lawn and a well-maintained mower!
FAQs
What kind of fuel should I use for my Briggs and Stratton lawn mower?
Briggs and Stratton recommends using 87-octane unleaded gasoline in your lawn mower. Don’t use gasoline that is older than 30 days, as it can become stale and cause problems with your engine. It’s also essential to use a fuel stabilizer to prevent fuel from going bad.
What is the best way to store my lawn mower for the winter?
Before storing your lawn mower for the winter, drain the fuel tank and carburetor to prevent fuel from going bad and damaging the engine. Add fuel stabilizer to the tank and run the engine for a few minutes to ensure the stabilizer is distributed throughout the fuel system. Once the engine is cool, clean the mower, and store it in a dry, well-ventilated area.
How do I know if my lawn mower’s spark plug is working?
The spark plug is an essential component in your lawn mower’s engine, igniting the fuel-air mixture. You can check its condition by removing it and inspecting the electrodes. If the electrodes are worn or corroded, you need to replace the spark plug. To test if it’s working, you can connect it to a spark plug tester and check if it produces a spark when the engine is cranked.
What is the best way to clean my lawn mower?
Regular cleaning of your lawn mower is vital to maintain its performance and longevity. After each use, remove any grass clippings or debris from the mower deck, engine, and underside. For a thorough cleaning, use a garden hose to rinse away any dirt or grime. Avoid using a high-pressure washer, as it can damage the engine components.
What should I do if my lawn mower won’t start?
There are several reasons why your lawn mower might not start. First, check if there is fuel in the tank. If the fuel is old or contaminated, drain it and add fresh fuel. Also, ensure the spark plug is working and the air filter is clean. If these steps don’t solve the problem, you may need to consult a professional mechanic.
What are the safety precautions I should take when using a lawn mower?
Before starting your lawn mower, inspect the area you will be mowing for any obstacles or debris. Wear appropriate footwear and safety glasses to protect yourself from flying debris. When mowing, keep the mower on level ground and avoid steep slopes. Never operate the mower in wet or slippery conditions.
What if I can’t find the choke on my lawn mower?
Not all lawn mowers have a choke. Modern Briggs and Stratton engines typically use a different method to enrich the fuel mixture during cold starts, like a primer bulb or a fuel shutoff valve. Consult your lawn mower’s user manual to identify the correct method for starting your specific model.