As far as I know, the stock Echo chains are made by Oregon. Not the best, but still worth sharpening.
If in doubt about the need for limiter caps -- because in some cases they provide the friction to hold the screws in place when there are no springs -- you can cut a little short piece of fuel line and slide it over the threads of the screws before turning them in. It will compress and should be just enough friction to keep the screws in place. I used this trick on my weed-whacker carb recently.
If in doubt about the need for limiter caps -- because in some cases they provide the friction to hold the screws in place when there are no springs -- you can cut a little short piece of fuel line and slide it over the threads of the screws before turning them in. It will compress and should be just enough friction to keep the screws in place. I used this trick on my weed-whacker carb recently.