Pretty much anything not covered by the topics above. Short lived production bikes or vehicles, Electrical, Tires, Paint, Brakes, etc. Use this for tech questions, and "Shoot the Bull" for general conversation, no tech.
Steve, not an antique expert, but if memory serves, most of the stock 6V wiring I've seen was 14ga for big draws, and 16 for smaller stuff. Something like the timer might have been 18ga. As always, bigger is better. DD