How to string a weed eater the right way

This is one of those things we need to do by ourselves. The good news is that it’s very easy to learn how to string a weed eater and once you get hold of it, you’ll usually do it in a couple of minutes. It is a frustrating moment, I know, I’ve been there, being so close to finish the lawn and suddenly, without any warning, the trimmer goes out of line (this could actually be a joke, the trimmer is out of line)…Frustrating, but it happens…all the time! So, I needed to restring the trimmer and finish the last corner of my yard.

Check here in-depth review and prices for various trimmer strings

The fact is that the first time I did this, I didn’t know how to do it properly so I improvised. The theory is simple: you need to remove the spool of your trimmer, replace the consumed line with a similar one and put the spool back in. Simple, right?How to restring a weed eater the proper way I knew that, just that I didn’t read the manual before, of course, never watched an YouTube video about it and, well, never read a site about it. Come on, how difficult could it be to string a trimmer? The fact is that it was not difficult, just that I did a couple of mistakes that I realized after going home and searching on YouTube. I realized something was wrong right there, in the yard, since the line was difficult to pull out each time I needed it, but I couldn’t tell why this happened. Now I know…

So, let’s see how to properly string a weed eater so everything work just fine!

First thing first, you need to stop the trimmer, disconnect it from any power source. Unplug it if it’s an electric corded trimmer or put the safety lock for gas or battery powered trimmers.




Flip the weed eater and remove the hub, then remove the cap. How you do this depends on the type, make and model of your trimmer. Some need to be rotated, some have tabs that you need to push, some others have locking rings. No matter how your trimmer works, find a way to remove the cap so you can see the spool holding the string, or at least what’s left of it and then remove the remains of the string.

Depending on how the line is attached to the spool, you may have:

The hub of a weed whacker in the process of restringingA trimmer that uses 2 different pieces of string/line. In this case the spool has 2 different sections holding each line, sections separated by a divider (this is the most common type of trimmer so it is possible that your trimmer work the same). In this case, the spool uses 2 different pieces of line, one for each hole. Cut 2 pieces of strings, insert them in those two holes and start to manually wrap the string as consistent as you can. Pay attention to how you wrap the string, if the line goes on top of itself, there is a good chance to jam inside the spool and this is never a good thing. Very important: look on the spool, there’s an arrow that shows the direction to wrap the line.

Once the line is wrapped, cut the line off. Depending on the weed eater, the spool may have some small notches on the sides that help you secure the line for the moment, until you manage to put the spool back in. Thread the line through the 2 small holes in the hub, put the spool back in and then put the cap back where it belongs. There, now you’re set! You can go back and mow the lawn again, everything should work just fine. Just be sure you put everything back again, make sure the hub is properly secured, to prevent any accidents (if not properly secured, the hub may fly off at high speeds and we wouldn’t like that, right?)

Check here in-depth review and prices for various trimmer strings

In case your weed eater has 2 opposite holes, you need to insert the ends of the line in the holes and rotate the screw of the spool until all the line is wrapped. This is the case with Echo weed eaters, for example, or with Stihl Autocut C 25-2. In this case, you actually don’t remove any cap, the top of the spool needs to be on since you insert the line directly through the 2 outside eyelets.

I also embedded here a video from YouTube that teaches you how to restring such a weed whacker:

You may have a trimmer that has holes, but, well, on the base of the spool (we have a Troy-Bilt here). I won’t get into details, but I added below a video to show how to restring it since it’s way easier to show than to describe.

Also, you may have a trimmer that…has no holes on the spool. In this case, the separator on the spool has one small cut that creates some kind of hook where you put the middle of the string. Here the line must be in one piece. The rest is the same as with the first case, nothing changes here.

How about the gauge of the line, how do I know what string  to buy for my trimmer?

You should check the manual for this answer, since it may depends, but as a general rule, electric weed eaters use 0.65 string, while gas powered trimmers use 0.8 or 0.95 string. Since I didn’t have the manual at that moment and I didn’t have an internet connection, I just rushed to the store with the remaining of the string in one hand and the guys at the stores helped me through. That’s after all, another good solution.

Well, guys, this concludes my short article on how to string a weed eater. I tried to put up here a small guideline for teaching you how to do it, I also added a few videos from YouTube, but there are tons of video resources on YouTube, I just embedded here a few that I found useful, but you should look for others by yourself. I hope I was clear enough and now you know how to restring the damn trimmer properly! After all, it’s not that difficult, right?

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  1. Pingback: Tips For Maintaining Your Weed Eater | Homelite Weed Eater

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