vintage poulan

hi, i have a question about this vintage bar design poulan chainsaws used to have, every time i see photos of this design, its on the right side of the bar, is this because there is nothing on the left side? it could be a coincidence, but you never know, so if any of you more knowledgable on the...

Hi all! New here but have been lurking for quite some time. I just picked up a pretty decent Poulan 54 with the 20" bar. I plan to use this as the powerhead for a chainsaw mill in the future as it seems pretty powerful but heavy to lug around. I am looking for a chain tensioner as the one...