Two apologies from the Webmaster: Back in April 2002, a contact in Finland provided me with circuit diagrams for both a Bosch and a Delco-Remy Starter-Generator (yes, the circuits are different). Unfortunately, due to a computer crash, I lost both the diagrams and his E-mail address. However, I was able to recover the E-mail and the diagram in May 2004, so here they are, at the bottom of the page. A big "Thank you" to Sampo, two years behind schedule!
A month after recovering the scanned images, I also recovered a diagram sent to me by Vis, the Webmaster at www.parkerdawson.com. It's a schematic of a circuit with separate starter relays and voltage regulators. Thanks Vis.
The cross section of the cables indicated by the thinner lines in the diagram is 2.5 sq.mm (0.0039 sq.in). The cross section of the cables indicated by the thicker lines is 16 sq.mm (0.025 sq.in).
If you want a larger, high-resolution image (400 KB) of the Bosch wiring diagram, then click here.
If you want a larger, high-resolution image (400 KB) of the Delco-Remy wiring diagram, then click here.