@Austin503
Put together a bunch of electrical, and a carb, link, that need to b gone through to help work out the electrics on the XS650
For a complete novice and helpful to some that aren't. This also helps to understand a loom and how the current moves through it
https://www.xs650.com/threads/what-happens-when-you-turn-your-key-on.9625/
https://www.xs650.com/threads/grounds-so-important.41775/
I think this is a must to use in conjunction with a Wiring diagram that help to be able to relate the 2 and also to check for damage, (broken wires or corrosion),and fix/check the loom
https://www.xs650.com/threads/continuity-testing-made-easy.49917/
In case a muliti-meter i a foreign language
https://www.xs650.com/threads/how-to-use-multimeter.27826/
Jim does a rewind service. He has detailed information regarding the XS650 charging system
https://www.xs650.com/threads/rewound-alternator-rotor.54276/
Something to chew on, informative
https://www.xs650.com/threads/wiring-harness-musings.18925/
Your friend
https://www.xs650.com/pages/tech/
Carbs...........The carb guide is a must read
https://www.xs650.com/threads/tentative-carb-id-layout.43392/
Not only an ID thread, has a lot of information that may be usefull............link to manuals, (both service and parts), that are a must or go on ebay and look for a service manual
https://www.xs650.com/threads/xs650...workshop-manuals-and-other-information.30569/