I am not smart enough to post a pic , so if you will , Google a Lisle 20750 remote starter tool . This is what I am referring to. You attach one lead to a 12v source and one lead to the starter solenoid tab . Make sure the transmission is in neutral ! Pushing the button will cause the starter to function or it will not function.
If the starter operates , the starter is good and the problem is in the wiring circuit on the bike.
If the starter does not operate , then it is bad and needs replacing. I do this for a living and It is not cost effective to mess with .
Disassembling this starter will be entertaining but it will cost as much in time and parts as replacing this component with a new one.