A lot of people I speak to are really intimidated by electrical systems. Here is a series of videos that might give you the fundamentals. The full playlist on YouTube is here. If you’re looking for a good reference book on motorcycle electrics, this is a good one, and there are more book recommendations on this page.
About the Author
I teach people how to build custom motorcycles by helping them build skills and confidence with my coaching, articles and training videos. I provide better technical information for custom motorcycle builders. And I shorten the learning curve getting you there.