As stated above get the owners manual off of the HD site. But as also mentioned above the service manual will do you the most good. And you can download those from various sites if you want an electronic copy. There are a couple of threads on the forum about that. As far as being legal or not I never really cared.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2013 RGC Candy Orange, 2005 Deuce (Traded), 1991 Sportster (sold),1948 Pan Head Hard Tail (sold and wish I didn't),1971 Honda 500 Four (original owner), Too many more to mention