How to Change Ryobi Weed Eater String? Simple Tutorial

Introduction

If you have ever struggled with a Ryobi weed eater that sputters, leaves uneven cuts, or fails to trim through thick weeds, the solution may be far simpler than replacing the entire tool. Learning how to change Ryobi weed eater string is a quick, low-cost maintenance task that anyone can complete in 15 minutes or less, no mechanical experience required. Worn or broken trimmer string is the most common cause of poor weed eater performance, and replacing it regularly will extend the life of your tool, improve your yard’s appearance, and save you money on costly repairs or replacement equipment. This comprehensive tutorial walks you through every step of the process, from selecting the right string for your model to avoiding common mistakes that cause jams and poor cutting performance.

• Why You Need to Change Your Ryobi Weed Eater String Regularly
• Types of Ryobi Weed Eater String
• Tools and Materials You’ll Need
• Step-by-Step Guide to Changing Ryobi Weed Eater String
• Comparison of Common Ryobi Weed Eater String Options
• Tips for Extending Your Weed Eater String’s Lifespan
• Common Mistakes to Avoid When Changing Ryobi Weed Eater String
• Frequently Asked Questions
• Conclusion

Why You Need to Change Your Ryobi Weed Eater String Regularly

Many Ryobi weed eater users put off replacing their trimmer string until it breaks completely, but waiting this long can cause more problems than just a temporary inconvenience. Worn string loses its sharp edges over time, which reduces cutting efficiency and forces the weed eater’s motor to work harder to trim through grass and weeds. This extra strain can lead to premature engine wear, reduced battery life for cordless models, and higher energy costs for electric models. Additionally, frayed or broken string can snap during use, creating a safety hazard for you and anyone nearby, as high-speed string fragments can cause serious eye injuries or skin cuts. Regularly replacing your string also ensures even cuts, so your lawn edges and weed beds look neat and professional instead of ragged and uneven. Knowing how to change Ryobi weed eater string as soon as you notice wear will prevent these issues and keep your tool running smoothly. For most residential users, changing the string every 2 to 4 months is sufficient, but you may need to replace it more often if you frequently cut thick brush, weeds, or vegetation near rocky terrain.

Types of Ryobi Weed Eater String

Not all weed eater string is created equal, and choosing the right type for your Ryobi model will drastically improve cutting performance and reduce the need for frequent replacements. Ryobi weed eaters are compatible with a wide range of string types, each designed for specific use cases and cutting conditions.

Round vs. Square vs. Serrated String

The most common string types are round, square, and serrated, each with unique performance characteristics. Round string is the standard option included with most new Ryobi weed eaters, and it works well for light-duty tasks like trimming grass, edging around walkways, and cutting thin weeds. It produces less vibration than other types, making it comfortable for extended use, but it dulls quickly when used on thick brush. Square (multi-sided) string has four flat sides that act like tiny blades, delivering much higher cutting power for medium-duty tasks like cutting dense weeds, tall grass, and small brush. It is slightly louder and produces more vibration than round string, but it lasts 2 to 3 times longer in heavy use. Serrated (cutting edge) string features small, sharp teeth along its length, making it the best choice for heavy-duty tasks like cutting woody brush, overgrown vegetation, and thick, tough weeds. It delivers the highest cutting power of all string types, but it also causes the most vibration and wears out faster if used on light grass.

Choosing the Right Gauge and Length

In addition to shape, you will need to select the correct gauge (thickness) and length of string for your Ryobi model. The gauge is measured in inches, with the most common sizes being .080″ and .095″. .080″ gauge string is the standard for most residential Ryobi electric and cordless weed eaters, and it is suitable for light to medium-duty use. .095″ gauge string is thicker and more durable, making it ideal for gas-powered Ryobi models and heavy-duty tasks. Using a gauge that is too thin will cause the string to break frequently, while a gauge that is too thick will overload the motor and reduce cutting efficiency. As for length, most Ryobi weed eaters require between 10 and 15 feet of string per spool, but you should always check your owner’s manual for the exact specification for your model to avoid overfilling or underfilling the spool.

Tools and Materials You’ll Need

Changing your Ryobi weed eater string requires only a few simple tools and materials, most of which you likely already have in your garage or toolbox. Having everything ready before you start will make the process faster and more efficient.

• Replacement trimmer string: Choose the correct gauge and type for your Ryobi model, as outlined in the previous section.
• Sharp scissors, string cutter, or utility knife: For cutting the string to the correct length cleanly, without fraying. A utility knife works well if you do not have dedicated string cutters, but use caution to avoid cuts.
• Work gloves: To protect your hands from sharp string ends and accidental cuts.
• Safety glasses: To protect your eyes from debris that may fly off the spool during removal and installation.
• Small flathead screwdriver (optional): For prying loose tangled old string or removing stubborn spool covers.
• Ryobi weed eater owner’s manual (optional): For model-specific instructions on spool removal, string winding direction, and recommended string gauge.

Step-by-Step Guide to Changing Ryobi Weed Eater String

Once you have all your tools and materials ready, follow these simple steps to learn how to change Ryobi weed eater string safely and correctly. This process works for nearly all Ryobi electric, cordless, and gas-powered weed eater models, though small details may vary slightly depending on your specific model.

Preparing Your Weed Eater for Maintenance

1. Disconnect the spark plug wire from the spark plug if you have a gas-powered model, or remove the battery if you have a cordless model. This is the most critical safety step, as it prevents accidental startup while you are working on the tool, which could cause serious injury.
2. Lay your Ryobi weed eater on a flat, stable work surface, such as a workbench or garage floor. Place a piece of cardboard underneath the head to catch any spilled oil or debris, especially for gas-powered models.
3. Locate the spool housing at the bottom of the weed eater head. Note whether your model uses a bump feed or automatic feed mechanism, as this will affect how you test the string after reassembly: bump feed models require you to tap the head on the ground to release more string, while automatic feed models release string when you pull the trigger. If you are unsure of the exact location or feed type for your model, refer to your owner’s manual for a diagram of the cutting head assembly.

Removing the Old String

4. Remove the spool cover by twisting it counterclockwise or pressing the release tab, depending on your model’s design. Set the cover aside in a safe place where it will not get lost or damaged.
5. Pull the spool straight out of the housing. If it is stuck after long periods of use, wiggle it gently side to side to loosen it without damaging the plastic housing or spool.
6. Remove any remaining old string from the spool. If the string is tangled or stuck to the spool, use a flathead screwdriver to gently pry it loose, being careful not to crack the spool or bend the center hole where the string is inserted.

Measuring and Cutting the New String

7. Take your replacement string and measure the length required for your model. Most Ryobi weed eaters require between 10 and 15 feet of string, but check your owner’s manual for the exact specification to avoid overfilling the spool, which causes tangles and feeding issues.
8. Cut the string to the measured length using sharp scissors or a string cutter. For clean, fray-free cuts, cut the string at a slight angle to create a pointed tip, which makes it much easier to insert into the spool’s center hole and feed through the exit holes.

Loading the New String Correctly

9. Check the top of the spool for a small arrow or marking that indicates the correct winding direction (clockwise or counterclockwise). Winding the string in the wrong direction is the most common cause of feeding jams after replacement, so double-check this marking before you start winding.
10. Insert one end of the cut string into the small hole in the center of the spool. Hold the string in place with your finger to keep it from slipping out as you wind the first few turns.
11. Wind the string tightly around the spool, following the marked direction. Keep the string taut as you wind to prevent tangles, and make sure each layer sits neatly on top of the previous one. Leave about 6 inches of string sticking out of the center hole once you have finished winding.
12. If your model uses a dual-line spool, repeat the winding process for the second line, making sure both lines are the same length and wound evenly to prevent feeding issues.

Reassembling and Testing

13. Insert the wound spool back into the housing, making sure the loose ends of the string are aligned with the small exit holes on the spool cover. If the ends are not aligned, the string will not feed correctly when you operate the weed eater.
14. Snap or twist the spool cover back into place until it is secure. If your model has a locking mechanism, you will hear a click when the cover is properly seated.
15. Reconnect the spark plug wire or reinsert the battery to power the weed eater.
16. Test the tool in a safe, open area free of people and pets. Pull the trigger to feed the string out – it should extend smoothly to the correct length, usually 6 to 8 inches from the cutting head. For bump feed models, tap the head on the ground to release additional string if needed. If the string does not feed, feeds too much, or jams, turn off the weed eater immediately and check that the spool is seated correctly and the string is wound in the right direction.

Comparison of Common Ryobi Weed Eater String Options

Choosing the right string for your Ryobi weed eater will depend on the type of vegetation you typically cut and how often you use the tool. The table below compares the most popular string types to help you make the best choice for your needs.

Tips for Extending Your Weed Eater String’s Lifespan

Replacing your weed eater string regularly is important, but there are several simple steps you can take to make your string last longer and reduce the frequency of replacements. These tips will help you get the most out of your string and keep your Ryobi weed eater performing at its best.

• Avoid cutting against hard surfaces: Never let the string come into contact with concrete, stone, brick, or tree trunks while the weed eater is running. These surfaces will wear down the string’s edges almost instantly, causing it to dull and break much faster.
• Keep the string at the correct length: Most Ryobi weed eaters are designed to operate with 6 to 8 inches of string extending from the cutting head. Letting the string get longer puts extra strain on the motor and causes it to wear out faster, while letting it get too short reduces cutting efficiency. Adjust the string length as needed after each use if your model has an adjustable feed mechanism.
• Store spare string properly: Keep unused string in a cool, dry place away from direct sunlight, as exposure to UV rays and extreme temperatures can make the plastic brittle and prone to breaking.
• Clean the string after use: If you cut wet grass, weeds, or muddy vegetation, wipe the string down with a dry cloth after use to remove sap, dirt, and moisture that can cause corrosion and premature wear.
• Do not overfill the spool: Follow the manufacturer’s recommended string length for your model when loading the spool. Overfilling the spool with extra string causes tangles, feeding jams, and puts unnecessary strain on the motor.

Common Mistakes to Avoid When Changing Ryobi Weed Eater String

Even experienced weed eater users make mistakes when learning how to change Ryobi weed eater string, leading to jams, poor cutting performance, and even damage to the tool. Avoid these common errors to make the replacement process faster and ensure your weed eater works perfectly after you finish.

• Skipping the safety step of disconnecting the spark plug or removing the battery: This is the most dangerous mistake you can make. Even if the weed eater is turned off, a connected spark plug can cause the tool to start unexpectedly if the trigger is engaged, leading to serious injury. Always disconnect the power source before you start working on the cutting head.
• Winding the string in the wrong direction: As mentioned earlier, most Ryobi spools have a marked winding direction. Winding the string backward will cause it to jam when you try to feed it out, and you will have to remove the spool and rewind it correctly. Always check the arrow on the spool before you start winding.
• Using the wrong gauge string: Using string that is too thin will break frequently, while string that is too thick will overload the motor and reduce cutting efficiency. Always check your owner’s manual for the recommended gauge for your specific model before purchasing replacement string.
• Overfilling the spool: It may be tempting to add extra string to make it last longer, but overfilling the spool causes tangles, feeding jams, and puts extra strain on the motor. Stick to the recommended length for your model to avoid these issues.
• Skipping the test run after reassembly: Always test the weed eater in a safe area after you replace the string. This will let you catch any issues with winding direction, spool seating, or string length before you start working on your yard, saving you time and frustration later.

Frequently Asked Questions

How often should I change my Ryobi weed eater string?

Most residential Ryobi weed eater users need to replace their trimmer string every 2 to 4 months with regular use, or when they notice a 30% or more drop in cutting efficiency. If you frequently cut thick brush, weeds, or vegetation near rocky terrain, you may need to change the string every 1 to 2 months. You should also inspect the string before each use for fraying, wear, or breaks, and replace it immediately if you notice any damage.

Can I use third-party string instead of OEM Ryobi string?

Yes, you can use high-quality third-party trimmer string as long as it matches the gauge (thickness) recommended for your specific Ryobi model. OEM Ryobi string is formulated to work seamlessly with Ryobi’s spool designs, but most third-party options perform just as well for residential use and are often more affordable. Avoid cheap, low-quality string that frays easily, as it can cause clogs, feeding jams, and damage to the spool over time.

Why is my new string not feeding after I changed it?

The most common causes of feeding issues after replacing your string are: 1) The string was wound in the wrong direction. 2) The spool is not seated correctly in the housing. 3) The string is too long and is getting caught on the spool cover. 4) The string is tangled inside the spool. To fix the issue, turn off the weed eater, remove the spool cover, and double-check the winding direction, reseat the spool, trim the string to the correct length, and make sure it is wound tightly without tangles.

Do I need to wear safety gear when changing my weed eater string?

Yes, at minimum you should wear work gloves to protect your hands from sharp string ends and accidental cuts, and safety glasses to protect your eyes from debris that may fly off the spool when you remove the old string. If you are working on a gas-powered Ryobi model, make sure the area is well-ventilated to avoid exposure to fumes, and keep a fire extinguisher nearby in case of accidental fuel spills.

Can I sharpen my weed eater string instead of replacing it?

No, you should never attempt to sharpen weed eater string. Trimmer string is designed to be flexible and wear evenly over time; sharpening it will make it brittle, cause it to break frequently during use, and can damage the spool and cutting head. Replacing worn string is the only safe, effective, and manufacturer-recommended solution for maintaining cutting performance.

Conclusion

Learning how to change Ryobi weed eater string is one of the simplest and most impactful maintenance tasks you can complete for your yard tool. By following the step-by-step guide outlined in this tutorial, selecting the right string for your specific needs, and avoiding common mistakes, you can keep your Ryobi weed eater running at peak performance for years to come. Regular string replacement will save you money on costly repairs, improve your yard’s appearance, and reduce safety hazards associated with worn or broken trimmer line. With just a few basic tools and 15 minutes of your time, you can tackle this task yourself without paying for professional maintenance, and get back to trimming your lawn quickly and efficiently.