G'day folks,
Norm, the charging rectifier on these Briggs is often just a single diode in the engine wiring harness, external to the engine. Sometimes in the charging wire connector, other times just inline and protected by heatshrink tubing. Otherwise it will be an externally mounted module, which will be fairly obvious.
You may find the downloadable owner/parts manuals at
http://www.agriquip.co.nz/about-us/product-manuals useful, as well as the ones on the archived Kingcat site at <http://web.archive.org/web/20141006150849/http://www.kingcat.co.nz/index.asp?pageID=2145897474> - need to copy and paste this one into your browser's address field.
Unfortunately, Kingcat don't seem to have been good at providing wiring diagrams!
