Grumpy,
I was hoping you did not suggest boring the cylinder.
I trust you when you say that most times it's just better to leave them alone beacuse it could cause more damage. Besides, spending time and money on that it's not worth it. If it fails I'll just buy a new piston and cylinder.
But thanks for all the info anyway.
Actually I started to put the trimmer back together but I'm stuck at installing the piston circlips. So I'll create another post and upload a video on that.
I'll keep updating here too though!
