Cleaning 20+year old chain saw Part 1 - STIHL MS-240

All the videos are made in 1080p quality
English subtitles are included
I cleaned my dad's engine saw that he's been using for a long time
Even though it was dirty, each part was well managed
I felt a little bit ashamed while I was working on it.
I just upload it because I need it in the context of the video ^------^
If you don't understand, please ask me questions
Thank you always!