The warm weather has arrived, and with it comes the dreaded task of mowing the lawn. But what happens when you pull the cord on your lawnmower and nothing happens? A broken or malfunctioning pull cord can turn a simple chore into a frustrating ordeal. Don’t worry, though! This article will guide you through troubleshooting and fixing your lawnmower pull cord, equipping you with the knowledge to conquer this common lawnmower problem. We’ll cover the common issues, how to identify the problem, and provide step-by-step instructions on how to repair your pull cord, saving you time, money, and a whole lot of frustration.
Understanding the Pull Cord System
The pull cord system is a vital part of your lawnmower’s engine. It uses a series of components to convert the force of your pull into the rotational motion needed to start the engine. The pull cord itself is attached to a recoil spring, which stores energy when you pull the cord. This energy is then released, spinning the crankshaft and ultimately igniting the engine. The system also includes a starter rope, a pull starter housing, and a few internal components like the pawl and the spring.
Common Pull Cord Problems
Several factors can cause your lawnmower’s pull cord to fail. Here are some of the most common issues:
1. Worn or Broken Pull Cord
The most common problem is a worn or broken pull cord. This can happen over time due to frequent use or if the cord is snagged or pulled too harshly.
2. Worn or Broken Recoil Spring
The recoil spring is responsible for storing and releasing the energy that starts the engine. If it becomes worn, weak, or broken, it will not be able to provide the necessary force to turn the crankshaft.
3. Stuck or Damaged Pawl
The pawl is a small, metal piece that engages with a ratchet to turn the crankshaft. If the pawl is stuck or damaged, it will prevent the recoil spring from properly engaging with the crankshaft, leading to a weak or no-start situation.
4. Damaged Starter Rope
The starter rope is the visible part of the pull cord system that you grab and pull. If the starter rope is frayed, worn, or broken, it may slip or break when you pull, preventing the pull cord from properly engaging the engine.
Troubleshooting Your Pull Cord Issues
Before you start taking your lawnmower apart, it’s essential to troubleshoot the problem. Here’s how to narrow down the cause of your pull cord malfunction:
1. Visual Inspection
Begin by inspecting the pull cord system. Look for any obvious signs of wear and tear, including:
- Frayed or broken pull cord: Examine the cord for any breaks, tears, or fraying.
- Worn or broken starter rope: Check the starter rope for signs of wear, fraying, or damage.
- Damaged pull starter housing: Look for cracks, breaks, or other damage to the pull starter housing.
- Loose or missing screws: Make sure all screws are tightened and that there are no loose or missing parts.
2. Pull Cord Tension Test
If your pull cord feels slack or doesn’t have much resistance, the problem may be a worn or broken recoil spring. Gently pull the cord to check the tension. If there’s very little resistance or the cord moves freely, it’s a strong indication the recoil spring needs replacement.
3. Engine Starting Attempt
Try to start the engine with the pull cord.
- If the cord doesn’t recoil or feels stiff, it could indicate a problem with the recoil spring, pawl, or other internal components.
- If you hear a clicking sound when pulling the cord, the pawl might be stuck or damaged.
Fixing Your Lawn Mower Pull Cord
Once you’ve identified the problem, you can begin the repair process.
1. Replacing the Pull Cord
This is often the simplest fix, and you can do it without disassembling the entire pull starter housing.
Here’s what you’ll need:
- New pull cord: This can be purchased at most hardware stores or online. Be sure to buy a cord specifically designed for your lawnmower model.
- Scissors or wire cutters: To cut the old cord.
Instructions:
- Remove the old cord: Using scissors or wire cutters, carefully cut the old pull cord as close to the pull starter housing as possible.
- Thread the new cord: Feed the new pull cord through the pull starter housing, following the path of the old cord. Make sure the cord is properly threaded through any guides or pulleys.
- Secure the cord: Tie the new cord to the end of the recoil spring inside the pull starter housing. Ensure the cord is secured tightly.
- Wind the cord: Wrap the excess cord around the pull starter housing as before, making sure it’s wound evenly.
2. Replacing the Recoil Spring
If your recoil spring is worn or broken, you’ll need to replace it.
Here’s what you’ll need:
- New recoil spring: Obtain a spring specifically designed for your lawnmower model.
- Phillips head screwdriver: To remove the pull starter housing screws.
Instructions:
- Remove the pull starter housing: Using a Phillips head screwdriver, unscrew and remove the screws that hold the pull starter housing in place.
- Remove the old spring: Carefully remove the old recoil spring from the pull starter housing.
- Install the new spring: Install the new recoil spring in the same location as the old one. Make sure the spring is properly seated and that its ends are attached to the correct components.
- Reassemble the pull starter housing: Replace the pull starter housing and secure it with the screws.
3. Replacing the Pawl
If the pawl is stuck or damaged, you’ll need to replace it.
Here’s what you’ll need:
- New pawl: Find a pawl specifically designed for your lawnmower model.
- Screwdriver: To remove any screws holding the pawl in place.
Instructions:
- Remove the pull starter housing: Follow the same instructions as for replacing the recoil spring.
- Remove the old pawl: Identify the pawl and remove it, carefully noting its position and orientation.
- Install the new pawl: Install the new pawl in the same location as the old one, ensuring it’s correctly positioned.
- Reassemble the pull starter housing: Replace the pull starter housing and secure it with the screws.
4. Replacing the Starter Rope
If your starter rope is frayed, worn, or broken, you’ll need to replace it.
Here’s what you’ll need:
- New starter rope: Buy a starter rope compatible with your lawnmower model.
- Scissors: To cut the old rope.
Instructions:
- Remove the old rope: Carefully cut the old starter rope as close to the pull starter housing as possible.
- Thread the new rope: Feed the new starter rope through the pull starter housing, following the path of the old rope.
- Secure the rope: Tie the new starter rope to the end of the pull cord inside the pull starter housing. Ensure the rope is securely tied.
- Wind the rope: Wind the excess rope around the pull starter housing, ensuring it’s wound evenly.
Preventing Future Pull Cord Problems
Here are some tips for preventing future pull cord issues:
- Use the correct pull technique: Always pull the cord smoothly and firmly. Avoid jerking or pulling too hard, as this can damage the cord, starter rope, or other components.
- Regularly inspect the cord: Check the pull cord, starter rope, and pull starter housing for signs of wear and tear, and replace any damaged parts promptly.
- Lubricate the pull cord system: Apply a light lubricant to the pull cord and starter rope to reduce friction and extend their lifespan.
- Store your lawnmower properly: When storing your lawnmower, ensure the pull cord is not stretched or snagged.
Conclusion
Fixing a broken lawnmower pull cord is a relatively straightforward task that can save you money and frustration. By following the steps outlined in this article, you can diagnose and repair your pull cord system with confidence. Remember to always prioritize safety and use the appropriate tools and precautions. With a little knowledge and effort, you’ll be back to mowing your lawn in no time!
FAQ
What are the most common causes of a lawnmower pull cord breaking?
The most common reasons for a lawnmower pull cord to break or malfunction are wear and tear, improper use, and incorrect maintenance. Over time, the cord can become frayed or weakened due to repeated use, especially when the mower is pulled too forcefully or with excessive force. Additionally, leaving the pull cord exposed to extreme weather conditions can also damage it. Lastly, improper maintenance, such as neglecting to lubricate the cord or the recoil spring, can lead to friction and breakage.
How can I tell if my pull cord is worn out?
You can identify a worn-out pull cord by looking for signs of fraying, cracking, or stiffness. The cord should be smooth and flexible, but if it feels rough or brittle, it’s likely worn out. Additionally, if the cord stretches excessively or the recoil spring doesn’t return smoothly, it’s an indication that the cord is no longer working as it should.
How do I replace a lawnmower pull cord?
Replacing a lawnmower pull cord is a fairly straightforward task that can be done with basic tools. First, disconnect the spark plug wire to prevent accidental starting. Then, remove the housing that covers the pull cord mechanism, which typically involves removing a few screws or bolts. Next, detach the old cord from the recoil spring and remove the housing. Install the new cord, making sure to thread it through the correct route, and attach it to the recoil spring. Finally, reassemble the housing and reconnect the spark plug wire.
Can I use a different type of pull cord for my lawnmower?
It is important to use a pull cord specifically designed for your lawnmower model. Using a different type of cord could result in compatibility issues or lead to premature failure. Each lawnmower has a unique pull cord length and diameter that is crucial for proper operation.
Should I replace the recoil spring when replacing the pull cord?
While not always necessary, it’s a good practice to replace the recoil spring at the same time as the pull cord. A worn-out recoil spring can contribute to a harder pull and reduce the lifespan of the new pull cord. The spring can be easily inspected for signs of wear, such as cracks, rust, or deformation.
How can I prevent my pull cord from breaking?
To prevent your pull cord from breaking, follow these tips: Use proper pulling technique, avoiding excessive force or jerking the cord. Regularly lubricate the pull cord mechanism with a light oil to reduce friction. Protect the pull cord from extreme weather conditions. Finally, consider replacing the pull cord and recoil spring before they show signs of wear and tear.
What should I do if my lawnmower won’t start because of a broken pull cord?
If you’re unable to start your lawnmower because of a broken pull cord, it’s best to replace it as soon as possible. However, if you don’t have a replacement cord available, you can try to temporarily fix the broken cord with a strong adhesive or a piece of wire. This is a temporary solution and should only be used as a last resort. It’s important to note that attempting to start the mower with a damaged pull cord could cause further damage or injury.