How to Restring a Weed Eater in 5 Minutes

String Trimmers6 min read

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The short answer

Cut about 10 feet of line, find the center, thread both ends through the head eyelets, wind each side in the direction of the arrow on the spool, and leave 6-inch tails. If the line binds, you probably wound it backward or overlapped the layers.

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0.080-Inch Trimmer Line Bulk Spool

A bulk spool saves money once you know the line size your head likes.

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Restringing a weed eater is a 5-minute job once you know the pattern. Most frustration comes from trying to wind both spools at once or ignoring the direction arrow on the head.

What You Need

  • A fresh length of line matching your trimmer head capacity.
  • A pair of gloves — fresh line can slice fingers.
  • A clean surface so dropped parts don't roll into the grass.

Step-by-Step

  1. 1Turn the trimmer off and disconnect the battery or spark plug boot.
  2. 2Press the tabs on the bump knob and pull the spool straight out.
  3. 3Clean grass clippings out of the head and check the eyelets for wear.
  4. 4Cut a 9–11 foot length of line and fold it in half to find the center.
  5. 5Hook the center into the notch or anchor on the spool.
  6. 6Wind one side in the direction of the arrow, keeping tension even and layers flat.
  7. 7Repeat on the second spool, winding the same direction.
  8. 8Thread the two tails through the head eyelets and snap the spool back in.
  9. 9Pull the tails until about 6 inches hang out each side.

Signs You Did It Right

  • The line extends evenly when you tap the head on grass.
  • The head does not rattle or bind at full speed.
  • Both tails shorten at roughly the same rate while trimming.

Frequently Asked Questions

How much line should I put on a weed eater?
Most residential heads hold 9–12 feet total. Overloading causes binding; underloading means frequent reloads.
Why does my line melt onto the spool?
Usually from winding too loose, using too-thin line, or running the trimmer against concrete without feeding. Rewind tightly with the right diameter.
Can I use any brand of line in my trimmer?
Yes, as long as the diameter matches the head's capacity. Brand does not matter; diameter and shape do.

The Gear We’d Buy

Everything referenced in this guide, in one place.

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Key Takeaways

  • Use 9–11 feet of line and fold it in half to find the center.
  • Wind in the direction of the arrow on the spool.
  • Keep layers flat and tension even to prevent binding.
  • Leave 6-inch tails; the trimmer will trim them to length on startup.

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Essential

0.080-Inch Trimmer Line Bulk Spool