The warm sun is shining, the birds are singing, and your lawn is calling for a trim. But there’s just one problem: your petrol lawn mower hasn’t been used in a while, and you’re not quite sure how to get it going. Don’t worry, starting a petrol lawn mower can seem daunting at first, but with a little guidance, it’s a straightforward process. This comprehensive guide will cover everything from preparing your mower to troubleshooting common issues, ensuring you’re ready to tackle that overgrown lawn in no time.
A Quick Overview
Starting a petrol lawn mower usually involves a few key steps:
- Preparation: Making sure the mower has fuel, oil, and a properly charged battery.
- Priming: This involves using the primer bulb to introduce fuel into the carburetor.
- Choke: Using the choke lever to regulate air flow and make starting easier.
- Starting: Pulling the starter cord multiple times until the engine roars to life.
Let’s dive into each of these steps in detail!
Prepping Your Mower for a Smooth Start
Before you even think about pulling the starter cord, make sure your mower is ready to go.
1. Fuel Up
- Choose the right fuel: Most petrol lawn mowers require a mix of unleaded petrol and two-stroke oil. The correct ratio is usually specified in your mower’s manual. You can also find pre-mixed fuel at most hardware stores.
- Check the fuel tank: Open the fuel cap and ensure the tank is at least half full.
- Clean the fuel cap: Use a clean cloth to wipe away any dirt or debris from the cap to prevent contamination of the fuel.
2. Check the Oil
- Use the right oil: Refer to your mower’s manual for the recommended oil type and viscosity.
- Check the oil level: Locate the dipstick, pull it out, wipe it clean, and reinsert it. Remove it again and check the oil level. If it’s low, add more oil until the dipstick registers a full level.
3. Battery Power
If your mower is equipped with an electric start, you’ll need to ensure the battery is fully charged.
- Check the terminals: Clean any corrosion from the battery terminals with a wire brush.
- Connect the battery: Make sure the battery is properly connected to the terminals.
The Starting Procedure: Step by Step
Now, it’s time to bring your mower to life!
1. Prime the Engine
- Locate the primer bulb: It’s usually a small, rubber bulb on the side of the carburetor.
- Pump the bulb: Push the bulb in and out several times, until you see fuel being drawn into the carburetor.
2. Engage the Choke
- Find the choke lever: This is usually a lever on the handle of the mower.
- Move the lever to the choke position: This restricts airflow, allowing the engine to run richer and start easier.
3. Pull the Starter Cord
- Locate the starter cord: It’s a long, rope-like cord attached to the engine.
- Pull the cord slowly at first: Avoid jerking or pulling too quickly. You want to build up tension in the recoil spring.
- Pull sharply: Once you’ve built up tension, pull the cord rapidly and forcefully.
4. Disengage the Choke
- Gradually move the choke lever back to the “run” position: Do this after the engine has started and is running smoothly.
Troubleshooting Common Starting Issues
Even with the right preparation and procedure, you might still encounter some problems getting your petrol lawn mower started.
1. The Engine Won’t Turn Over
- Check the spark plug: Remove the spark plug and inspect it. The electrode should be clean and free of carbon build-up.
- Check the spark plug wire: Make sure it’s securely connected to the spark plug and the ignition coil.
- Test for spark: Hold the spark plug wire near the engine block and pull the starter cord. You should see a blue spark.
2. The Engine Starts But Dies Immediately
- Check the fuel supply: Make sure the fuel tank is full and the fuel line is not clogged.
- Check the air filter: A clogged air filter can restrict airflow and cause the engine to stall.
3. The Engine Runs Rough or Backfires
- Check the carburetor: The carburetor might be dirty or out of adjustment. You might need to clean or adjust it.
- Check the spark plug: A worn or faulty spark plug can cause misfires.
Maintaining Your Mower for a Long Life
Just like any machine, your petrol lawn mower requires regular maintenance to keep it running smoothly and extend its lifespan.
1. Clean the Mower Regularly
- Clean the underside of the deck: Remove any grass clippings or debris.
- Clean the air filter: Replace it if it’s dirty or damaged.
- Clean the spark plug: Replace it if it’s worn or damaged.
2. Change the Oil
- Follow the recommended oil change intervals: This is usually specified in your mower’s manual.
- Use the right oil: Use the type and viscosity of oil recommended for your mower.
3. Store Your Mower Properly
- Empty the fuel tank: To prevent fuel from going stale.
- Store in a dry, well-ventilated area: This will help prevent corrosion and rust.
Conclusion
Starting a petrol lawn mower can seem intimidating at first, but by following these steps and paying attention to the warning signs, you’ll be ready to tackle your lawn with confidence. Remember, proper maintenance is key to keeping your mower running smoothly and extending its life. With a little care and attention, your petrol lawn mower will be a reliable companion for many years to come.
FAQs
1. What safety precautions should I take before starting a petrol lawn mower?
It’s crucial to prioritize safety before starting a petrol lawn mower. First, ensure you wear appropriate clothing, including sturdy shoes, long pants, and protective eyewear. Secondly, check the area you’ll be mowing for any obstructions like toys, rocks, or debris. Thirdly, make sure the fuel tank cap is securely closed to prevent leaks and spills. Finally, never start the mower indoors or in an enclosed space as this can lead to carbon monoxide poisoning.
2. How do I prepare the lawn mower for use?
Before using your petrol lawn mower, it’s important to prepare it correctly. This involves checking the oil level and adding more if necessary. You should also ensure the spark plug is clean and properly connected. The fuel tank should be filled with fresh fuel, preferably using a fuel stabilizer to prevent the fuel from going bad. Finally, inspect the blade for any damage or dullness, as a sharp blade ensures a clean cut and a well-maintained lawn.
3. What is the best way to prime the engine?
Priming the engine is a crucial step in starting a petrol lawn mower. To prime it, locate the primer bulb on the carburetor and pump it several times until fuel is visible in the transparent fuel line. This ensures enough fuel reaches the carburetor for ignition. If the engine still doesn’t start after priming, try priming it again and then proceed to the next steps for starting.
4. How do I start a cold petrol lawn mower?
Starting a cold petrol lawn mower requires a specific procedure. First, ensure the choke lever is in the “choke” position, which restricts airflow and enriches the fuel mixture for easier starting. Then, place the throttle lever in the “fast” position to provide more fuel for initial ignition. Once you hear the engine start, gradually move the choke lever to the “run” position as the engine warms up.
5. How do I start a warm petrol lawn mower?
Starting a warm petrol lawn mower is simpler than starting a cold one. With the engine already warm, you can skip the choke step. Simply move the throttle lever to the “fast” position and pull the starter cord several times. The engine should start readily. If it doesn’t, try moving the throttle to the “slow” position and pulling the starter cord again.
6. What should I do if the lawn mower won’t start?
If your petrol lawn mower won’t start, there are a few things to check. First, ensure the fuel tank is full and the fuel line is clear of obstructions. Next, inspect the spark plug to see if it’s clean and properly connected. If the spark plug is faulty, replace it with a new one. Finally, check the air filter for dirt or blockage and clean it if necessary.
7. How do I maintain my petrol lawn mower?
Maintaining your petrol lawn mower regularly ensures its longevity and efficiency. This includes changing the oil at regular intervals, cleaning the air filter, and sharpening or replacing the blade when necessary. It’s also crucial to clean the mower deck after each use to remove grass clippings and debris. Finally, store the lawn mower in a dry and well-ventilated area when not in use.