The first sign of spring is often the sound of lawnmowers humming in the neighborhood. But what happens when your trusty mower refuses to cooperate? The dreaded “won’t start” scenario can be frustrating, especially when you’re eager to tackle your overgrown lawn. This comprehensive guide will equip you with the knowledge and techniques to successfully crank your lawn mower, ensuring a smooth start every time. We’ll cover everything from essential tools and safety precautions to troubleshooting common problems and mastering the art of cranking.
The Basics of Cranking a Lawn Mower
Cranking a lawn mower involves initiating the combustion process to power the engine. This is achieved by using a starter mechanism, typically a pull cord or an electric starter, to rotate the crankshaft and ignite the fuel-air mixture inside the cylinder. The resulting explosion generates the power to drive the mower’s blades.
Preparing for a Successful Crank
Before diving into the cranking process, it’s crucial to ensure your mower is in optimal condition. Here’s a step-by-step checklist to follow:
1. Gather Your Tools:
- Spark Plug Wrench: This specialized wrench is designed to remove and install spark plugs.
- Fuel and Oil: Always keep your mower fueled with fresh gasoline and the correct type of oil. Refer to your mower’s manual for the recommended fuel and oil specifications.
- Safety Glasses and Gloves: Protect your eyes and hands from potential hazards like flying debris or hot components.
- Cleaning Supplies: A brush, rag, and some cleaning solution will be handy for removing any dirt or debris.
- Mower Manual: The manual is your ultimate resource for troubleshooting and understanding your specific mower model.
2. Fuel Up and Oil Check:
- Fuel Tank: Ensure your fuel tank is topped off with fresh gasoline. Avoid using old or contaminated fuel, as it can cause engine problems.
- Oil Level: Check the oil level using the dipstick. Add oil if necessary, adhering to the recommended type and quantity specified in your manual.
3. Clean and Inspect:
- Air Filter: A dirty air filter restricts airflow to the engine, hindering performance. Clean or replace it as needed.
- Spark Plug: Check the spark plug for any signs of wear or damage. If necessary, replace it with a new one.
- Mower Deck: Remove any accumulated grass clippings or debris from the mower deck. A clean deck allows for better airflow and reduces the risk of clogging.
- Blade Sharpness: Dull blades can lead to uneven cuts and put a strain on the engine. Sharpen or replace blades as required.
4. Position the Mower:
- Level Surface: Make sure the mower is positioned on a level surface to prevent it from rolling or tipping.
- Free Space: Ensure you have enough space around the mower to safely access it and operate the pull cord.
The Art of Cranking
Once your mower is prepped and ready, it’s time to crank it to life. Follow these steps carefully:
1. Engage the Choke:
- Cold Start: If your mower has been sitting for a while, engage the choke lever. This restricts airflow, creating a richer fuel mixture that helps the engine start easier in cold conditions.
- Warm Start: Once the engine is warmed up, you can disengage the choke.
2. Prime the Engine (If Necessary):
- Primer Bulb: Some lawnmowers feature a primer bulb. This bulb pushes fuel into the carburetor, assisting with cold starts. Press the bulb several times before cranking.
3. Pull the Starter Cord:
- Firm Grip: Hold the starter cord handle firmly and avoid pulling it too quickly.
- Gradual Pull: Slowly pull the cord out until you feel resistance. This helps build up tension in the spring-loaded mechanism.
- Strong Pull: Give the cord a strong, even pull. Avoid jerking or pulling it too forcefully.
4. Keep Pulling:
- Multiple Attempts: If the mower doesn’t start on the first pull, continue pulling the cord a few more times.
- Fuel Mixture: If the engine starts but stalls immediately, it may indicate a problem with the fuel mixture. Check the choke setting and adjust it as necessary.
5. Disengage the Choke:
- Warmed Up: Once the engine is running, gradually disengage the choke lever. The engine should run smoothly without the choke engaged.
Troubleshooting Common Problems
Sometimes, even with meticulous preparation, your lawn mower may still refuse to crank. Here’s a breakdown of common problems and their solutions:
1. No Spark:
- Dead Battery (Electric Start): If your mower has an electric starter, a dead battery can prevent it from turning over. Check the battery voltage and recharge or replace it if necessary.
- Foul Spark Plug: A fouled spark plug can prevent the spark from igniting the fuel-air mixture. Remove the spark plug, inspect it for signs of fouling (black soot, oil, or carbon), and clean or replace it as needed.
- Spark Plug Wires: Ensure the spark plug wires are securely connected to both the spark plug and the ignition coil. Any loose connections or damaged wires can disrupt the spark.
2. No Fuel:
- Empty Fuel Tank: This might seem obvious, but double-check that your fuel tank isn’t empty.
- Fuel Line Clogged: A clogged fuel line can prevent fuel from reaching the carburetor. Inspect the fuel lines for any blockages and clean or replace them as necessary.
- Fuel Filter Clogged: Similar to the fuel line, a clogged fuel filter can restrict fuel flow. Clean or replace the filter if needed.
3. Engine Flooding:
- Too Much Fuel: If you prime the engine too much, the carburetor may flood with fuel, preventing a spark. Wait a few minutes for the excess fuel to evaporate before trying to crank again.
- Choke Engaged: Make sure the choke is fully disengaged once the engine is warm. A choked engine may not start or run smoothly.
Maintaining Your Lawn Mower for Smooth Starts
Consistent maintenance is key to keeping your lawn mower running smoothly.
1. Regular Maintenance:
- Change Oil: Change the engine oil regularly according to the manufacturer’s recommendations.
- Clean Air Filter: Clean or replace the air filter every few uses or as needed.
- Inspect Spark Plug: Check the spark plug for wear and tear, and replace it if necessary.
- Fuel Stabilizer: Add fuel stabilizer to your gasoline during the off-season to prevent fuel from deteriorating.
2. Storage:
- Clean Mower: Before storing your mower for extended periods, clean it thoroughly.
- Empty Fuel Tank: Empty the fuel tank to prevent fuel from going bad.
- Stabilize Fuel: Add fuel stabilizer to the remaining fuel in the tank before storing.
- Protect from Elements: Store your mower in a dry, well-ventilated area, protected from the elements.
Safety First
- Wear Safety Glasses: Protect your eyes from flying debris or hot components.
- Use Gloves: Gloves will protect your hands from potential hazards.
- Keep Children Away: Never allow children to operate or be near a running lawn mower.
- Clear the Area: Remove any obstacles or debris from the area before starting the mower.
Conclusion:
Cranking your lawn mower doesn’t have to be a daunting task. By following these steps and addressing any potential problems, you can ensure a smooth start every time. Remember to prioritize safety, maintain your mower regularly, and consult your owner’s manual for specific instructions. With a little care and attention, your lawn mower will be ready to tackle any mowing job with ease.
FAQ
What are the signs that my lawn mower needs cranking?
If your lawn mower won’t start with the electric starter, it’s a good indication that you’ll need to crank it. Other signs include a dead battery, a faulty starter motor, or a clogged fuel line. If you can’t start the engine with the electric starter, cranking the engine is a good way to get it running.
Why is it necessary to crank a lawn mower?
Cranking a lawn mower is a manual way to start the engine when the electric starter is not functioning. This involves manually turning the engine over using a starter rope or handle. Cranking the engine can be helpful for various reasons, including a dead battery, a faulty starter motor, or a clogged fuel line.
What tools do I need to crank a lawn mower?
You’ll need a few basic tools to crank your lawn mower. First, you’ll need to locate the starter rope or handle. Additionally, you’ll need to ensure the choke is set correctly. Most mowers have a lever or knob for adjusting the choke.
What are the steps involved in cranking a lawn mower?
First, make sure the lawn mower is on a flat surface and the spark plug is properly connected. Next, engage the choke by setting the lever or knob to the “choke” position. After that, pull the starter rope or handle firmly and steadily until the engine starts. Once the engine runs, gradually disengage the choke by moving the lever or knob to the “run” position.
What should I do if the lawn mower won’t start after cranking?
If the lawn mower still won’t start after cranking, check the fuel tank to ensure it’s not empty. You should also inspect the spark plug to ensure it’s clean and properly connected. If the problem persists, it might be time to call a professional mechanic to diagnose and fix the issue.
What safety precautions should I take when cranking a lawn mower?
When cranking a lawn mower, always wear safety glasses to protect your eyes from debris. Make sure the lawn mower is on a flat surface and not near any flammable materials. It’s also crucial to never touch the spark plug wire while the engine is running.
What are some common mistakes people make when cranking a lawn mower?
A common mistake is not engaging the choke before cranking. This can make it difficult to start the engine. Another error is not pulling the starter rope or handle firmly and steadily. This can result in the rope breaking or the engine not starting.