I have just bought a bike for 75 pounds which was unknowingly in very bad condition!

I have never fixed a bike before so have no experience. The bike shop said it would cost 250+ to repair but I am going to see how far I can get myself!

The handle bars would not turn so I am trying to take off the spacers so that I can detest the stem and headset. I have got most of them off apart from the last one which is seeming impossible!
in the process the wd-40 must’ve helped as the handle bars will twist now but not enough!


The spacer or compressor I am trying to remove

I am also trying to remove the chain so that I can derust it and see if it is in good enough condition after that!
it is a split link chain but I just cannot remove! I don’t have the tool to and don’t want to purchase one!
Have tried DIYS but they aren’t working.

if anyone has any advice would be greatly appreciated!