what you want to do first is set your bike up in your garage. get like a lawn chair or something set up so you can stair at the disassembled mess and put some good jams in your ear. a beer at the ready doesn't hurt either. start picking up parts and figure out where they belong and bolt em up. sometimes the order will be right but other times you'll have to undo stuff to let other parts fit but that is the best way to learn. another word of advice, if it isn't torn apart already take a bunch of pictures so you will have some reference later