Replacing a lawn mower pull string is a relatively simple task that can be completed in just a few minutes. However, if you’re not familiar with the process, it’s helpful to have a guide to walk you through the steps. In this article, we’ll provide you with step-by-step instructions on how to replace a lawn mower pull string, as well as some helpful tips to make the process go smoothly. By following these instructions, you can quickly and easily get your lawn mower back up and running.
The first step is to remove the old pull string. To do this, locate the recoil starter assembly on the side of the lawn mower. The recoil starter is the housing that contains the pull string and spring. Once you’ve located the recoil starter, remove the screws that hold it in place and carefully remove the assembly from the lawn mower. Once the recoil starter is removed, you can remove the old pull string by unwinding it from the pulley. Be careful not to lose the spring when you remove the pull string.
Next, you’ll need to install the new pull string. To do this, simply wind the new pull string around the pulley in the same direction that the old pull string was wound. Once the pull string is wound around the pulley, you can reattach the recoil starter assembly to the lawn mower. Be sure to tighten the screws that hold the recoil starter in place. Finally, give the pull string a few tugs to make sure that it’s working properly.
Identifying the Pull String
Your lawn mower’s pull-string plays a vital role in starting the engine. It’s typically located on the side or back of the lawn mower and consists of a cord, handle, and spring mechanism. Understanding how to recognize and replace a pull-string is crucial for maintaining the smooth operation of your lawn mower.
Here are some key characteristics to look for when identifying your lawn mower’s pull-string:
Cord:
The pull-cord is a thin, flexible rope that you will pull to start the engine. It should be made of durable material, such as nylon or polyester, and have enough length to reach the ground when you’re standing behind the mower.
Handle:
The pull-handle is attached to the end of the pull-cord and typically has a comfortable grip. The handle allows you to easily grip and pull the cord without straining your hand.
Spring mechanism:
The spring mechanism is located inside the pull-starter housing. Its purpose is to retract the pull-cord back into its original position after you’ve pulled it. A strong spring will ensure a consistent and reliable start-up process.
Removing the Old Pull String
It is essential to be cautious when removing the old pull string, as sudden movements can cause the spring to fly out or propel the starter cord erratically. To avoid any injury or damage, follow these steps carefully:
- Disconnect the spark plug wire from the spark plug as a safety precaution to prevent accidental starting.
- Locate the starter cord access panel on the mower housing. This is typically a small, rectangular panel held in place by a few screws.
- Carefully remove the screws and lift off the access panel.
- Inside the starter housing, you will see a spring attached to the starter pulley. This spring is what retracts the pull cord after you let go.
- Using a pair of needle-nose pliers, gently grip the spring from the top and pull it up slightly.
- While holding the spring in this position, pull the starter cord out of the pulley.
- Next, inspect the knotted end of the pull cord. Usually, it is tied to a small peg or hook inside the starter housing.
- Using a pair of scissors, cut the knot to detach the old pull cord.
- Finally, remove the old pull cord from the starter housing and set it aside.
Locating the Recoil Winder
The recoil winder is typically located on the side or back of the lawn mower, near the engine. It is a round, cylindrical device with a rope or cord wrapped around it. The other end of the rope is attached to the starter pulley, which is connected to the engine’s crankshaft.
To locate the recoil winder, follow these steps:
Step 1: Identify the starter pulley
Look for a small, round pulley located on the side of the engine. The pulley will have a rope or cord wrapped around it.
Step 2: Follow the rope to the recoil winder
Follow the rope from the starter pulley to the other end. The other end of the rope will be attached to the recoil winder.
Step 3: Identify the recoil winder
The recoil winder is typically a round, cylindrical device. It may have a handle or grip on top. The rope or cord will be wrapped around the winder.
Here is a table summarizing the steps for locating the recoil winder:
| Step | Description |
|---|---|
| 1 | Identify the starter pulley |
| 2 | Follow the rope to the recoil winder |
| 3 | Identify the recoil winder |
Winding the New Pull String
Once the new pull string is mounted on the starter assembly, it’s time to wind it. Follow these steps to wind the pull string securely:
- Check the Spool Orientation: Identify the direction of rotation for the starter assembly. Most lawn mowers have a clockwise rotation, indicated by an arrow or label.
- Align the Pull Cord: Place the pull cord in the designated slot on the starter assembly, ensuring it aligns with the spool’s rotation direction.
- Pull the Starter Cord: Begin pulling the starter cord slowly, keeping a steady tension. This will initiate the winding process.
- Count the Pulls: The recommended number of pulls varies depending on the lawn mower model. Refer to the manufacturer’s instructions or follow the general guidelines below:
Mower Type Number of Pulls Small Electric 4-6 pulls Push Reel 6-8 pulls Walk-Behind Gas 8-10 pulls Ride-On Gas 10-12 pulls
Once the recommended number of pulls is reached, the pull string should be wound tightly around the spool. Release the tension and verify that the cord is secure and free of any kinks or obstructions.
Attaching the New Pull String
Now that you have pulled the new pull string through the recoil starter, it’s time to attach it to the starter cord. Here’s a step-by-step guide:
- Locate the starter cord: Find the starter cord on the recoil starter housing. It’s usually a small, black or white plastic cord.
- Tie a knot in the pull string: Make a small knot at the end of the new pull string, about 1/4 inch from the end.
- Insert the pull string into the starter cord: Push the knotted end of the pull string through the loop on the starter cord.
- Tighten the knot: Pull on the pull string to tighten the knot. Make sure it’s snug but not too tight.
Secure the pull string with a screw or bolt: Some lawn mowers have a screw or bolt that secures the pull string to the recoil starter housing. If your lawn mower has one, insert the screw or bolt through the hole on the recoil starter housing and tighten it securely.
Now, your new pull string is attached and ready to use. Remember, if you have any additional questions or need further assistance, consult your lawn mower’s user manual or seek help from a qualified mechanic.
Installing the Starter Spring
The starter spring is a crucial component in the pull-start mechanism of a lawn mower. Follow these detailed steps to install the starter spring correctly:
Step 1: Remove Existing Spring
Locate the old starter spring attached to the recoil housing and disconnect it by unhooking or unscrewing it.
Step 2: Clean and Inspect Housing
Thoroughly clean the recoil housing where the starter spring fits to remove any debris or dirt that may affect its operation.
Step 3: Position New Spring
Choose the appropriate end of the new starter spring that aligns with the hook or mounting point on the recoil housing.
Step 4: Hook or Screw Spring
Align the end of the starter spring with the hook or mounting point on the recoil housing and securely attach it.
Step 5: Tension Spring
Wind up the starter spring in a clockwise direction by pulling on the pull rope. Ensure that the spring has sufficient tension to recoil the pull rope back into the recoil housing.
Step 6: Test Tension (Detailed)
To ensure optimal tension, test the starter spring by pulling on the pull rope. Here are specific guidelines for testing:
| Pull Rope Resistance | Tension Assessment | Adjustment |
|---|---|---|
| Loose or weak | Insufficient tension | Wind the starter spring further clockwise |
| Tight or stiff | Excessive tension | Unwind the starter spring slightly counterclockwise |
| Smooth and gradual | Optimal tension | No adjustment needed |
Adjusting the Pull String Tension
Once you have the new pull string installed, you need to adjust the tension. This is important to ensure that the pull string is taut enough to start the engine but not so tight that it breaks. The following steps will explain how to adjust the tension of the pull string.
- Locate the tension screw. The tension screw is typically located near the pull starter assembly. It is usually a small screw with a spring around it.
- Turn the tension screw clockwise to tighten the pull string. Do not overtighten the screw, as this could break the pull string.
- Pull the starter cord slowly and gently to check the tension. The pull cord should be taut, but it should not be difficult to pull.
- Repeat steps 2 and 3 until the desired tension is achieved.
- Once the desired tension is achieved, tighten the tension screw lock nut. This will help to keep the tension screw in place.
- Test the pull starter to make sure it is working properly. The engine should start easily when the pull starter is pulled.
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Additional Tips for Adjusting the Pull String Tension
| Tip | Description |
|---|---|
| Use a pair of pliers to turn the tension screw if it is difficult to turn by hand. | Be careful not to overtighten the screw, as this could break the pull string. |
| If the pull string is too loose, it may not engage the starter pawl properly. | This will prevent the engine from starting. |
| If the pull string is too tight, it could break when the engine is started. | It is important to find the right tension for your particular lawn mower. |
Securing the Pull String
Once the knot has been tied, it is important to secure the pull string properly to prevent it from coming loose during use. This can be done by following the steps below:
-
Take the free end of the pull string and pass it through the loop that was created by the knot.
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Pull the free end of the string through the loop until it is tight, making sure that the knot is securely seated against the handle.
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Trim any excess pull string from the free end, leaving about 1-2 inches of string beyond the knot.
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Apply a small amount of super glue or clear epoxy to the knot to ensure that it remains secure over time.
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Allow the glue or epoxy to dry completely before using the lawn mower.
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Once the glue or epoxy is dry, the pull string should be securely attached to the handle and ready for use.
By following these steps, you can securely attach the pull string to your lawn mower and ensure that it will function properly for years to come.
| Material | Advantages | Disadvantages |
|---|---|---|
| Nylon | Strong and durable | Can be more expensive than other materials |
| Polyester | Resistant to stretching and fading | Less durable than nylon |
| Polypropylene | Lightweight and economical | Can be weaker and less durable than other materials |
Testing the Pull String
- Disconnect the spark plug to prevent the engine from starting accidentally.
- Remove the starter cover from the lawn mower.
- Locate the starter pulley and pull the starter rope until it engages with the pulley.
- Hold the starter rope taut and inspect the pull string for any signs of fraying, cracking, or other damage.
- Release the starter rope slowly and observe if it recoils back into the starter housing smoothly.
- If the pull string shows signs of damage or does not recoil properly, it needs to be replaced.
- Note the length of the original pull string before removing it.
- Tie a temporary knot at the end of the new pull string.
- Attach the knot to the starter pulley and wind the new pull string around the pulley until it reaches the same length as the original string.
- Remove the temporary knot and secure the pull string by tying it to a hook or other attachment point on the starter housing.
- Reattach the starter cover and reconnect the spark plug.
Proper Maintenance and Storage
To ensure the longevity and optimal performance of your lawn mower’s pull string, proper maintenance and storage are essential:
- Regular Cleaning: Clean the pull string and handle regularly with a mild cleaning solution to prevent dirt and debris buildup.
- Lubricate: Apply a small amount of lubricant to the pull start mechanism to reduce friction and prevent wear.
- Inspect: Check the condition of the pull string regularly for any signs of fraying, cracking, or weakening.
- Replace Worn Parts: If the pull string shows signs of damage, replace it promptly to avoid further issues.
- Store Properly: Store the lawn mower in a dry and protected location to prevent moisture and extreme temperatures from affecting the pull string.
Step-by-Step Guide to Replacing a Lawn Mower Pull String
| Pull String Material | Advantages | Disadvantages |
|---|---|---|
| Nylon | Durable, strong, resistant to wear | Can stretch over time |
| Polyester | Less prone to stretching, smooth operation | More expensive than nylon |
| Kevlar | Extremely durable, heat-resistant | Most expensive option |
How To Replace A Lawn Mower Pull String
The pull string on a lawn mower is an important part of the starting mechanism. It is made of a strong cord that is attached to the recoil starter. When you pull on the string, it winds around the starter and engages the engine. Over time, the pull string can become frayed or broken, which will prevent the mower from starting. Fortunately, replacing a lawn mower pull string is a relatively simple task that can be completed in just a few minutes.
To replace the pull string, you will need the following tools:
- New pull string
- Screwdriver
- Needle-nose pliers
Once you have gathered your tools, follow these steps to replace the pull string:
1. Disconnect the spark plug wire from the spark plug.
2. Remove the starter housing cover.
3. Locate the recoil starter and remove the old pull string.
4. Attach the new pull string to the recoil starter.
5. Wind the pull string around the starter until it is tight.
6. Replace the starter housing cover.
7. Reconnect the spark plug wire to the spark plug.
People Also Ask About How To Replace A Lawn Mower Pull String
Why does my lawn mower pull string keep breaking?
There are several reasons why your lawn mower pull string might keep breaking. One possibility is that the string is simply old and worn out. Another possibility is that the string is not properly lubricated, which can cause it to become brittle and break. Finally, the string may be getting caught on something, which can also cause it to break.
How do you fix a lawn mower pull string that is too long?
If your lawn mower pull string is too long, you can simply trim it to the desired length. Use a sharp knife or scissors to cut the string. Be sure to leave enough string so that you can still pull it easily.
How do you replace a pull cord on a lawn mower?
Replacing a pull cord on a lawn mower is similar to replacing a pull string. The main difference is that the pull cord is usually attached to a spring. To replace the pull cord, you will need to remove the spring from the starter housing. Once the spring is removed, you can simply attach the new pull cord to the starter and wind it around until it is tight.
