So, after doing some extensive work with the bike lately (replaced stator and regulator/rectifier - great success!), I also got the urge to swap out my links with a set of Kouba 3/4" links. The problem is that, though I have tried and tried, I simply can't even get the original nut to budge on the existing link. Has anyone else encountered this before? The bike is on the center stand when I am attempting this. My dad suggested using a thing called "Marvel's Mystery Oil" to loosen it, but I have never used it before. Is there a trick to getting them off?