1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 85Get this manual
Quality of the image is intentionally reduced!
REMOVAL AND INSTALLATION
- ORANGE WireFrom Electrode On Transom AssemblyREDPURPLE WireConnect (Other End) To Positive (+) Battery TerminalBLACK WireFrom Engine HarnessBROWN WireFrom Electrode on