I would suggest you pick one of the simplified diagrams, study it and draw it from memory, read up on what item does what, once you understand what all the items do, isolate the ignition items and draw a diagram just for ignition. Do the same for charging and lighting systems. Ignition systems, charging systems, lighting systems are quite simple once you understand the function of each item. Trying to work out how many wires go here, how many go there, will get you nowhere. Similarly trying to understands a complete system, lights, charging, ignition, particularly factory systems, will only confuse you. You cannot successfully wire a bike without an understanding of the various components. Once you have an understanding, you won't need a diagram.
You will get lots of help here, unfortunately you will also get a lot of name calling and abuse, same as any forum. Use the ignore function and persevere.