2006 Honda BF115 Digital Tach Installation

[fish_guy10]

I have a 2006 Honda BF115 with side mount remote control. I'm trying to install a Honda digital gauge (06375-ZY3-800) with wiring harness (32540-ZY3-8010), neither of which came with instructions or diagrams. I have been unable to find any instructions or diagrams on the net and cannot get through to a human at Honda.

Anyone know how to get this tach wired up or have any suggestions?

Thanks!