The warm weather is here, and that means it’s time to get your lawn in shape. But before you can mow, you need to make sure your Briggs & Stratton lawn mower is ready to go. Starting a Briggs & Stratton lawn mower might seem like a simple task, but there are a few things you need to know to ensure a smooth and successful start. This comprehensive guide will walk you through the process, from pre-start checks to troubleshooting common issues.
In this article, we’ll cover everything you need to know about starting a Briggs & Stratton lawn mower, including:
- Pre-Start Checklist: Ensuring your mower is ready to go.
- Starting Your Mower: A detailed step-by-step guide.
- Troubleshooting Common Starting Issues: Identifying and resolving problems.
- Maintenance Tips: Keeping your mower running smoothly.
Pre-Start Checklist: Setting the Stage for a Successful Start
Before you even think about pulling the starter cord, it’s essential to perform a few quick checks to ensure your mower is ready to go. This pre-start checklist will help you avoid frustration and potential issues later on:
1. Fuel Level Check:
- Locate the Fuel Tank: It’s usually a clear or red plastic tank on the side of the mower.
- Check the Fuel Level: Make sure the tank is at least half full.
- Fresh Gas is Key: Use fresh, unleaded gasoline with a stabilizer, especially if you haven’t used the mower in a while. Old gas can gum up the engine.
2. Oil Level Check:
- Locate the Dipstick: It’s usually on the side of the engine, marked with a “Full” and “Low” line.
- Check the Oil Level: Pull out the dipstick, wipe it clean, and reinsert it. Pull it out again and check the oil level.
- Add Oil if Needed: If the level is low, add the correct type of oil (usually 10W30 or 10W40). Refer to your owner’s manual for specific recommendations.
3. Spark Plug Check:
- Locate the Spark Plug: It’s usually under a metal cover on the top of the engine.
- Inspect the Plug: Check for signs of wear, corrosion, or damage.
- Replace if Necessary: If the plug looks worn or damaged, replace it with a new one of the correct type.
4. Blade Sharpness:
- Check for Dullness: A dull blade will scalp your lawn and tear the grass, leaving it brown and uneven.
- Sharpen or Replace: If the blades are dull, sharpen them with a file or replace them with new ones.
5. Air Filter Check:
- Locate the Air Filter: It’s usually a round, black canister on the side of the engine.
- Clean or Replace: A dirty air filter restricts airflow and can affect starting and performance. Clean or replace the filter as needed.
Starting Your Briggs & Stratton Lawn Mower: Step-by-Step
Once you’ve completed the pre-start checks, you’re ready to start your mower. Here’s a step-by-step guide:
-
Set the Choke: The choke restricts airflow to help the engine start. On most Briggs & Stratton mowers, you’ll find a lever or button labeled “Choke” on the engine. Pull the choke lever out or press the choke button to the “ON” position.
-
Prime the Engine: This step is only necessary if your mower has a priming bulb. Locate the priming bulb, usually near the carburetor, and press it several times to fill the carburetor with fuel.
-
Set the Ignition Switch: Turn the ignition switch to the “ON” position. This will power the ignition system.
-
Start the Mower: With the choke engaged, gently pull the starter cord until you feel resistance. Then, pull the cord quickly and firmly. If the mower doesn’t start after a few tries, release the choke lever and try again.
-
Let the Engine Warm Up: Once the engine is running, let it idle for a few minutes to allow it to warm up. Then, slowly adjust the choke lever or button to the “OFF” position.
Troubleshooting Common Starting Issues: When Things Don’t Go as Planned
Even with the best preparation, you might encounter problems starting your Briggs & Stratton lawn mower. Here are some common issues and their solutions:
1. Mower Won’t Start at All:
- Check the Spark Plug: A faulty spark plug is a common culprit. Make sure the plug is connected securely and that it sparks when you hold it near the engine’s grounding point.
- Inspect the Fuel Line: Ensure there are no blockages in the fuel line.
- Check the Fuel Filter: A clogged fuel filter can prevent fuel from reaching the engine.
- Examine the Ignition Switch: Make sure the ignition switch is in the “ON” position.
2. Mower Starts but Immediately Dies:
- Check the Choke: If you haven’t disengaged the choke, the engine will likely stall.
- Inspect the Air Filter: A clogged air filter can restrict airflow and cause the engine to stall.
- Examine the Fuel System: A leak or blockage in the fuel line can cause the engine to run out of fuel.
3. Mower Starts but Runs Roughly:
- Adjust the Choke: If the engine is running too lean, adjust the choke lever or button to enrich the fuel mixture.
- Check the Spark Plug: A worn or fouled spark plug can cause a rough running engine.
- Inspect the Air Filter: A dirty air filter can affect the air-fuel mixture and lead to rough running.
Maintenance Tips: Keeping Your Briggs & Stratton Lawn Mower Running Smoothly
Regular maintenance is key to keeping your Briggs & Stratton lawn mower running smoothly and extending its lifespan. Here are some important tips:
- Change the Oil: Change the oil every 25 hours of operation or at least once a season.
- Clean the Air Filter: Clean the air filter every 25 hours of operation or more frequently if you mow in dusty conditions.
- Inspect the Blades: Check the blade sharpness after each use and sharpen or replace them as needed.
- Clean the Undercarriage: Remove any grass clippings, dirt, or debris from under the mower deck after each use.
- Store Properly: Store your mower in a clean, dry place during the off-season.
Conclusion: Starting Your Lawn Mower with Confidence
Starting your Briggs & Stratton lawn mower doesn’t have to be a frustrating experience. By following this comprehensive guide, you can ensure a smooth and successful start every time. Remember to perform pre-start checks, follow the step-by-step starting process, and troubleshoot any issues promptly. With proper maintenance and care, your Briggs & Stratton lawn mower will be ready to tackle any lawn, season after season.
Frequently Asked Questions
1. What if my mower won’t start?
There are a few common reasons why your Briggs & Stratton lawn mower might not start. First, check if the fuel is fresh. Old fuel can gum up the engine and prevent it from starting. If the fuel is old, drain it and refill with fresh gasoline. Second, make sure the spark plug is clean and properly gapped. A dirty or mis-gapped spark plug can prevent the engine from igniting. Finally, check the air filter. A clogged air filter restricts airflow to the engine, which can make it difficult to start. Clean or replace the air filter as needed.
2. How do I know if my mower needs oil?
You can check the oil level on your Briggs & Stratton lawn mower by using the dipstick. The dipstick is usually located on the side of the engine. Remove the dipstick, wipe it clean, and insert it back into the tube. Remove it again and check the oil level. If the oil level is below the “Low” mark, you need to add more oil.
3. How often should I change the oil in my mower?
It is recommended to change the oil in your Briggs & Stratton lawn mower every 25 hours of operation or at the beginning of each mowing season, whichever comes first. This ensures that the engine is properly lubricated and running smoothly. To change the oil, simply drain the old oil from the engine and replace it with fresh oil.
4. How do I adjust the cutting height of my mower?
The cutting height of your Briggs & Stratton lawn mower is adjustable using a lever or knob located on the mower deck. To adjust the cutting height, simply move the lever or knob to the desired setting. Make sure that all four wheels are on the same height setting.
5. How do I use the safety features on my mower?
Most Briggs & Stratton lawn mowers come equipped with safety features like a blade brake clutch, which stops the blade when the operator releases the handle, and a safety switch that prevents the engine from starting unless the operator is holding the handle. Make sure that you are familiar with the safety features of your particular model and always use them correctly.
6. How do I clean my lawn mower?
After using your Briggs & Stratton lawn mower, it’s important to clean it to prevent dirt and debris from building up. Remove any grass clippings from the deck and the undercarriage. Clean the underside of the mower deck with a brush or a garden hose. Finally, inspect the blade for any damage and sharpen it if necessary.
7. What should I do if my lawn mower is making a strange noise?
If your Briggs & Stratton lawn mower starts making a strange noise, it is important to identify the source of the noise and address it as soon as possible. A common cause of strange noises is a loose or damaged blade. If the blade is damaged or loose, it needs to be replaced or tightened. If the noise persists after checking the blade, consult your owner’s manual or contact a qualified repair technician for assistance.