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Message: <blockquote data-quote="saganaga" data-source="post: 211948" data-attributes="member: 5445">#2 are diodes.  (They are called rectifiers in the online wiring schematics).One diode makes the neutral safety work properly.  If it is shorted out, the neutral safety light will come on every time the clutch lever is pulled.  If it is removed, the motorcycle won't start in neutral unless the clutch lever is pulled.Second diode <s>...  not sure what that one is for.  Looks like it is part of the circuit that connects to the coils, starter, etc.</s>  If I'm reading it correctly, I think it looks like there coils are powered by a circuit that includes a resistor (the ballast resistor?).  But when the starter button is path, it creates an alternative path to the coils without a resistor.  I suspect it makes a hotter spark for starting.  Then when the bike is running, the ballast resistor probably drops it down to 7-9V or so to make the points last longer and protect the coils from overheating.Have you checked out the wiring schematics yet?  If you are planning on redoing all the wiring, you probably should get very familiar with the schematics.</blockquote>