Hey guys, I'm new here. I ended up buying a F4i that was absolutely ****ed up in all sorts of ways beside the motor and drivetrain. I ended up purchasing a gauge cluster for it as it didn't come with one, and when I plugged it in, the screen lights up (orange) but absolutely nothing comes on the screen. Tach doesn't work either. Only things that do work are the neutral and FI light and indicators. Any ideas what it could be? Thank you guys. Also if anyone has a pic of how to route the harness like oem, that would be amazing.

 

Welcome to the forum, you will probably need to do a complete wiring check to make sure the harness isn't as goosed as the rest of the bike or you could have a duff gauge.
See below for some routing pics, you can get hold of the workshop manual, there should be a link in the F4i sticky.