Hello everyone! I am new here and have come here for some help from people who have experience in the Monkey Bike field. My father has had a 1969 Honda Qa50 for years in the garage that I want to try to work on after 4 years of it sitting in the back of the garage. The bike itself is in alright condition and there's not really any rust. The main issue with it is that a younger me decided it would have been wise to take apart part of the monkey bike's front suspension and tear it down to do a full-on restoration. At this point, I just want to get the bike up and running. Currently, the parts for part of the bike sit in a box, and I need to take out the engine that is currently in it to replace it with a "new" one. The current one had some problems from what my father told me. If I recall correctly, when I was working on this 4 years ago, I had problems with the master chain link from the engine to the rear wheel sprocket. It is seized on there and I tried to it with WD40 before. I believe the first place for me to restart on this project is to get the master chain link removed so I can get the engine out. What is the best way to go about this? I don't have much at my disposal and can't really go out to a store to get anything. Also, sorry for the lack of pictures! It's currently 9:40 or so at night and am unable to get to the bike.