The warm weather is finally here, and it’s time to get your lawn in tip-top shape. But before you can start mowing, you need to make sure your Briggs & Stratton 550EX lawn mower is ready to go. Starting a lawn mower might seem like a simple task, but there are a few key steps involved to ensure a smooth and safe experience. This article will walk you through the process of starting your Briggs & Stratton 550EX lawn mower, covering everything from pre-start checks to troubleshooting common starting issues.
Starting a Briggs & Stratton 550EX lawn mower is a straightforward process that involves a few simple steps. First, you need to ensure the mower is in a safe and level location, the fuel tank is full, and the oil level is adequate. Next, you’ll prime the carburetor, engage the choke, and pull the starter cord. Once the engine starts, you can disengage the choke and let the engine warm up before starting to mow.
Pre-Start Checks: Setting the Stage for Success
Before you even think about pulling that starter cord, take a few moments to conduct some essential pre-start checks. These checks will help ensure a smooth start and prevent potential problems down the line.
Fuel Up and Check the Oil
A full fuel tank and adequate oil are crucial for your mower’s performance.
- Fuel: Check the fuel tank and add gasoline if necessary. Use fresh, high-quality gasoline with a minimum octane rating of 87.
- Oil: Use the correct type and viscosity of oil as specified in your owner’s manual.
Note: It’s important to use the correct oil for your lawn mower engine. Using the wrong type can damage the engine.
Check the Spark Plug
A healthy spark plug is essential for ignition.
- Inspect: Remove the spark plug wire from the spark plug and inspect the plug for signs of wear, corrosion, or fouling.
- Replace: If the spark plug is worn or damaged, replace it with a new one of the correct type.
Clear the Cutting Deck
A clean cutting deck ensures smooth operation and prevents clogging.
- Debris Removal: Remove any grass clippings, leaves, or other debris from the cutting deck.
- Mower Blades: Make sure the mower blades are sharp and free of any damage.
Starting the Engine: A Step-by-Step Guide
Now that you’ve completed your pre-start checks, it’s time to get your Briggs & Stratton 550EX lawn mower running.
Prime the Carburetor
Priming the carburetor ensures a rich fuel mixture for easier starting.
- Primer Bulb: Locate the primer bulb on the carburetor (usually near the fuel tank).
- Pumping: Press the primer bulb several times until you see fuel flowing into the carburetor.
Engage the Choke
The choke enriches the fuel mixture for easier starting in cold conditions.
- Choke Lever: Locate the choke lever on the mower’s control panel. It will typically be marked with a “choke” or a picture of a butterfly.
- Engage: Move the choke lever to the “choke” position.
Pull the Starter Cord
Now, it’s time to start the engine!
- Position: Stand firmly with your feet shoulder-width apart, positioned slightly to the side of the mower.
- Grip: Hold the starter cord handle with a firm grip.
- Pull: Pull the starter cord smoothly and steadily.
- Multiple Pulls: If the engine doesn’t start on the first pull, try again, but be sure to release the cord completely each time.
Disengage the Choke
Once the engine is running, gradually disengage the choke to allow the engine to run smoothly.
- Warm Up: Let the engine run for a few minutes to warm up before you begin mowing.
Troubleshooting Starting Issues: Addressing Common Problems
Even with careful pre-start checks, you might encounter some starting issues. Here are a few common problems and their solutions:
Mower Won’t Start:
- Fuel: Check the fuel tank and make sure it’s full of fresh, high-quality gasoline.
- Oil: Ensure the oil level is adequate and the oil is the correct type for your mower.
- Spark Plug: Inspect the spark plug for wear or damage.
- Choke: Double-check that the choke is engaged and the primer bulb has been pumped.
- Air Filter: Check the air filter and clean or replace it if it’s dirty.
Mower Starts but Dies Immediately:
- Fuel: Check for fuel leaks.
- Air Filter: Check the air filter and clean or replace it if it’s dirty.
- Spark Plug: Inspect the spark plug for wear or damage.
Mower Starts But Runs Rough:
- Choke: Make sure the choke is fully disengaged.
- Carburetor: If the engine continues to run rough, the carburetor might need cleaning or adjustment.
Maintaining Your Briggs & Stratton 550EX Lawn Mower: Ensuring Long-Lasting Performance
Regular maintenance is essential for keeping your Briggs & Stratton 550EX lawn mower running smoothly and reliably.
Schedule Regular Maintenance
- Oil Change: Change the oil every 25 hours of operation or at least once per season.
- Air Filter Cleaning: Clean the air filter every 25 hours of operation or as needed.
- Spark Plug Inspection/Replacement: Inspect and clean or replace the spark plug every 100 hours of operation.
- Cutting Deck Cleaning: Clean the cutting deck after each use.
Keep It Clean and Store Properly
- Cleaning: After each use, clean the mower thoroughly to prevent dirt and debris from accumulating.
- Storage: Store your mower in a dry and well-ventilated area.
Safety First: Always Remember These Precautions
When operating a lawn mower, safety should always be your top priority.
- Wear Protective Gear: Always wear safety glasses, sturdy closed-toe shoes, and long pants when operating your lawn mower.
- Inspect the Area: Before mowing, inspect the area for any obstacles or debris that could pose a hazard.
- Children and Pets: Keep children and pets away from the area while mowing.
- Fuel Safety: Only refuel the mower when the engine is cold. Never add fuel while the engine is running or hot.
- Emergency Stop: Know how to operate the mower’s emergency stop switch in case of an emergency.
Conclusion: Ready to Mow?
With a little preparation and understanding of the process, starting your Briggs & Stratton 550EX lawn mower is a simple task. By following these steps and keeping your mower in good working condition, you can enjoy a smooth, efficient mowing experience and keep your lawn looking its best all season long. Remember, safety should always be your top priority. Always wear protective gear, inspect your surroundings before mowing, and never let children or pets near the mower while it’s in operation. With a little care and attention, your Briggs & Stratton 550EX lawn mower will be a reliable companion for many seasons to come!
FAQs
Q1: What are the essential steps to start a Briggs & Stratton 550EX lawnmower?
A: Starting a Briggs & Stratton 550EX lawnmower is a straightforward process. First, ensure the fuel tank is filled with fresh gasoline. Next, locate the choke lever, usually found on the side of the engine, and engage it by pushing it forward or towards the engine. Now, pull the recoil starter cord slowly until you feel resistance, then give it a firm, quick pull. This engages the starter mechanism.
If the engine doesn’t start, check the spark plug to ensure it’s clean and has a good spark. You can test this by grounding the spark plug to the engine block and pulling the recoil starter cord. If the engine still doesn’t start, try spraying a small amount of starting fluid into the carburetor. Once the engine is running, disengage the choke lever by pushing it back to its original position.
Q2: What should I do if my Briggs & Stratton 550EX lawnmower won’t start?
A: Several reasons could prevent your Briggs & Stratton 550EX from starting. A common problem is a clogged fuel line or carburetor. Check for blockages and clean them if necessary. Also, inspect the fuel filter and replace it if it’s dirty. Another possibility is a faulty spark plug. Replace it if it’s cracked or corroded. Finally, check the air filter for dirt and replace it if needed.
Ensure you’re following the correct starting procedure, including engaging the choke lever and giving the recoil starter cord a firm pull. If the engine still refuses to start, consult your owner’s manual for further troubleshooting tips or contact a qualified mechanic for assistance.
Q3: How do I maintain a Briggs & Stratton 550EX lawnmower?
A: Maintaining your Briggs & Stratton 550EX lawnmower is crucial for its long-term performance and longevity. Regularly inspect and clean the air filter, spark plug, and fuel filter. Replace them as needed. Ensure the blade is sharpened and balanced. Check the oil level regularly and top it up when necessary.
Furthermore, lubricate the moving parts like the wheels, deck, and cutting height adjustment mechanism with oil or grease. Clean the entire mower, including the underside of the deck, after each use to prevent grass clippings and dirt from accumulating. Store your mower in a dry place when not in use.
Q4: How often should I change the oil in my Briggs & Stratton 550EX lawnmower?
A: You should change the oil in your Briggs & Stratton 550EX lawnmower every 25 hours of operation or at least once per season, whichever comes first. This helps ensure the engine runs smoothly and efficiently.
To change the oil, start by letting the engine cool down completely. Then, locate the oil drain plug on the bottom of the engine and unscrew it to drain the old oil into a suitable container. Once the oil has completely drained, replace the drain plug and tighten it securely. Now, add new oil to the engine through the oil fill cap located on the top of the engine. Be sure to use the correct type and quantity of oil, as specified in your owner’s manual.
Q5: How do I adjust the cutting height on my Briggs & Stratton 550EX lawnmower?
A: Adjusting the cutting height on your Briggs & Stratton 550EX lawnmower is a simple process. You’ll usually find a lever or a series of levers located on the side of the mower deck. Each lever controls a specific height setting.
To adjust the cutting height, simply lift or lower the levers to your desired setting. Make sure all the levers are set to the same height for a consistent cut. You can refer to the markings on the levers or the owner’s manual for specific height settings. Once you’ve adjusted the height, ensure the levers are securely locked in place.
Q6: What type of gasoline should I use for my Briggs & Stratton 550EX lawnmower?
A: The recommended fuel for your Briggs & Stratton 550EX lawnmower is unleaded gasoline with an octane rating of 87 or higher. Avoid using gasoline with ethanol content exceeding 10%, as this can damage the fuel system and lead to performance problems.
Always use fresh gasoline, as older gasoline can gum up the fuel system and make it difficult to start the mower. Ensure the fuel tank cap is securely closed to prevent fuel evaporation and spills.
Q7: What should I do if my Briggs & Stratton 550EX lawnmower is smoking?
A: If your Briggs & Stratton 550EX lawnmower is smoking, it could indicate several issues, including excessive oil consumption, a worn-out piston ring, or a clogged air filter. To diagnose the problem, check the oil level and ensure it’s within the recommended range. Also, inspect the air filter and replace it if it’s dirty or clogged.
If the smoking persists, consult your owner’s manual for further troubleshooting tips or take your mower to a qualified mechanic for a professional diagnosis and repair. Remember, excessive smoking can be a sign of a serious engine problem, so don’t ignore it.