My bike came with a Corbin, and although I love it for ordinary riding, I don't love it for the twisties :) I threw together a sportmax front section and center and rear reworked Muscle seat. The new reworked sportmax is so much better for being able to get into the turns but I do miss the sheer...
Below is a link to a PDF file for the 12N (85-89) VMAX Wiring diagrams. About 1.6 meg in size.
http://www.vmaxforum.net/local_links.php?action=jump&catid=2&id=67
This has been redrawn from Yamaha's schematics in a format that I hope you will find easier to follow.
I put it in this forum to...