I know things... A lot of things.
Join Date: Feb 2015
Motorcycle: GSXR 750 K4
Re: Gixxer completely dead
This might be due to several reasons, such as grounding issues (although that's unlikely, since the dash had the power to cycle the needle), a failure in the ignition switch leading to loss of +12V, or wiring problems with the same effect, etc. You'll have to troubleshoot that methodically with a DMM, to get to the bottom of it. (I assume here that all fuses have been checked and are intact.)