Imagine this: you’re ready to tackle the weekend yard work, but your lawnmower refuses to start. You pull the cord, but it feels limp and unresponsive. You’ve likely encountered a broken or worn-out pull cord – a frustrating but fixable problem!
This comprehensive guide will walk you through the process of restringing your lawnmower pull cord. We’ll cover everything from identifying the right parts to troubleshooting common issues, ensuring you get your mower back in action quickly and efficiently.
A Quick Overview
Restringing a lawnmower pull cord is a relatively straightforward repair that can be done with basic tools and a little patience. The process involves removing the old cord, installing a new one, and making sure it’s correctly tensioned.
Understanding the Pull Cord System
Before we dive into the restringing process, let’s understand how the pull cord system works. The pull cord is essentially a rope connected to a spring-loaded recoil system. When you pull the cord, the spring unwinds, rotating the engine crankshaft and starting the mower.
Here are the key components:
- Pull Cord: The rope itself, usually made of nylon or similar material.
- Recoil Starter Assembly: The mechanism housing the spring, pawl, and other components.
- Spring: The main power source for the recoil starter.
- Pawl: A small, tooth-like component that engages with the engine’s crankshaft.
Tools and Materials You’ll Need
To restring your lawnmower pull cord, you’ll need these tools and materials:
- New pull cord: This is the most important part. Make sure you get the correct length and type for your mower model. You can find these at your local hardware store or online.
- Phillips head screwdriver: For removing and attaching screws.
- Flat head screwdriver: For prying open the recoil starter housing.
- Wire cutters: For trimming the cord to the correct length.
- Gloves: For protecting your hands.
- Work space: A clean, flat surface to work on.
Step-by-Step Guide to Restringing Your Lawn Mower Pull Cord
Now that you have your tools and materials ready, let’s begin the restringing process:
Step 1: Disconnect the Spark Plug
- Locate the spark plug on your mower’s engine. It’s usually a small metal cylinder with a wire attached.
- Remove the wire from the spark plug by pulling it straight off. This is essential for safety, as it prevents accidental ignition while working on the engine.
Step 2: Access the Recoil Starter
- For easy-access mowers: The recoil starter is usually on the side of the engine and held in place by a few screws. Remove these screws, and the starter assembly should come loose.
- For mowers with a shroud: You may need to remove the engine shroud to access the recoil starter. Refer to your mower’s user manual for specific instructions.
Step 3: Remove the Old Pull Cord
- Locate the cord’s attachment points: The cord usually connects to a hook or a spring-loaded pin.
- Release the cord: Carefully release the cord from its attachment points. Be cautious not to damage the recoil starter components while doing this.
Step 4: Install the New Pull Cord
- Thread the new cord: Feed the new cord through the recoil starter housing. This might require some gentle prying or using a small screwdriver to create a small opening.
- Attach to the spring: Connect the end of the new cord to the spring inside the recoil starter. There’s usually a small hook or groove where the cord attaches.
- Attach to the pawl: Secure the other end of the cord to the pawl. This is typically done by wrapping the cord around the pawl and securing it with a small nut or clip.
Step 5: Reassemble the Recoil Starter
- Reverse the disassembly process: Reinstall the recoil starter assembly by reversing the steps you took to remove it.
- Secure the screws: Ensure all screws are properly tightened.
Step 6: Test the New Pull Cord
- Connect the spark plug wire.
- Pull the cord: Test the pull cord several times. Make sure it has a smooth, consistent feel and that the engine is starting correctly.
Troubleshooting Common Issues
Sometimes, restringing the pull cord isn’t enough to solve your starting problem. Here are some common issues you might encounter and how to troubleshoot them:
1. Engine Not Starting:
- Check the spark plug: Make sure the spark plug is clean and has a good spark. You can test it by holding the spark plug against a metal surface and pulling the cord. If there’s a spark, the plug is likely good.
- Verify the fuel supply: Ensure your lawnmower has enough fuel and that the fuel lines are not clogged.
- Inspect the air filter: A dirty air filter can restrict airflow and prevent the engine from starting.
- Check for loose connections: Ensure all connections in the engine compartment, including the spark plug wire and fuel lines, are secure.
2. Weak or Flimsy Pull Cord:
- Check for proper tension: The new pull cord needs to be properly tensioned to provide a smooth and effective pull. If it feels weak, adjust the spring tension by turning a small screw located on the recoil starter housing. Consult your mower’s manual for specific instructions on adjusting the spring tension.
- Make sure the pawl is engaged: The pawl is a small, toothed component that engages with the crankshaft. If it’s not properly engaged, the pull cord won’t start the engine.
3. Pull Cord Binding:
- Check for obstacles: Make sure the pull cord isn’t snagged or caught on any objects inside the recoil starter housing.
- Inspect for wear or damage: Look for any signs of wear or damage to the recoil starter components, such as frayed cord, a broken spring, or a worn-out pawl. These issues might require replacement.
Tips for Maintaining Your Lawn Mower’s Pull Cord
Here are some tips for keeping your lawnmower’s pull cord in good condition:
- Regularly inspect the cord: Check for fraying, wear, or damage, and replace it as needed.
- Avoid excessive force: Don’t yank on the cord with too much force. This can put stress on the recoil starter components and shorten the cord’s lifespan.
- Keep the recoil starter clean: Dust and debris can build up in the recoil starter, preventing it from working properly. Clean it regularly with compressed air or a soft brush.
- Use the right type of cord: Ensure you use a replacement cord that’s specifically designed for your lawnmower model.
Conclusion
Restringing a lawnmower pull cord is a simple and cost-effective repair that can save you from frustration and wasted time. By following the steps outlined in this guide and troubleshooting any common issues, you can get your mower back in action quickly and efficiently. Remember to always prioritize safety by disconnecting the spark plug before working on the engine. With a little patience and the right tools, you can keep your lawn looking its best!
Frequently Asked Questions
Q1: What tools do I need to restring a lawn mower pull cord?
You’ll need a few basic tools to restring your lawn mower pull cord. These include a Phillips head screwdriver, pliers, a pair of wire cutters, a measuring tape, and a new pull cord. Make sure the new pull cord is compatible with your mower model. You can find this information in your owner’s manual or by contacting the manufacturer.
Q2: How do I know if my lawn mower pull cord is broken?
If you notice that your lawn mower is difficult to start or that the pull cord is loose or frayed, then it’s likely broken. Another telltale sign is if the cord retracts slowly or doesn’t retract at all. If you have any of these problems, you should replace the cord as soon as possible. A broken cord can lead to a more serious problem with your lawnmower, so it’s always better to err on the side of caution.
Q3: How long should the new pull cord be?
The length of the new pull cord will vary depending on the model of your lawn mower. However, it’s always best to use a pull cord that is the same length as the original. You can find the correct length in your owner’s manual or by contacting the manufacturer. If you don’t have the information, you can measure the old cord before removing it.
Q4: How do I remove the old pull cord from the lawn mower?
To remove the old pull cord, you need to access the recoil housing, which is usually located under the engine cover. Use a screwdriver to remove the screws holding the cover in place. Once the cover is off, you can see the recoil assembly. The old cord is attached to the recoil assembly with a spring. Use pliers to gently remove the spring and then pull the old cord out of the housing.
Q5: How do I attach the new pull cord to the recoil assembly?
Once the old cord is removed, you can attach the new cord to the recoil assembly. The new cord will have a small loop on one end. This loop needs to be threaded through the hole in the recoil assembly. You can use a small screwdriver or your finger to push the loop through the hole. Once the loop is through, you can then attach the spring to the other end of the cord. Make sure the spring is securely attached before closing the recoil housing.
Q6: How do I test the new pull cord?
After installing the new cord, you need to test it. To do this, pull the cord gently a few times. The cord should retract smoothly and without any resistance. If it doesn’t, you may have installed the cord incorrectly or the spring may not be attached properly. You may have to repeat the steps above to correct the issue.
Q7: What are some tips for preventing future pull cord problems?
To prevent future pull cord problems, you should lubricate the recoil assembly regularly. You can use a light oil or grease, but avoid using anything that is too thick or sticky. It’s also important to keep the engine cover clean and free of debris. This will help prevent dirt and grime from getting into the recoil assembly. Finally, if you notice that the pull cord is getting frayed or worn, it’s time to replace it. This will help you avoid future problems with your lawnmower.