How do you take a pinion lock knot apart on a 99 300 honda fourtrax atv?

I would like to know if there is a site that I can get a diagram of how to take apart a pinion lock knot for a 99 300 honda fourtrax.. is there anyone who can help me?How do you take a pinion lock knot apart on a 99 300 honda fourtrax atv?I have worked on a tonne of these but never used a pinion lock knot what the hell is that