Reply To: GT250 tachometer not working
Open the Dashboard unit, see if you can “gently” move the needle up and see if it goes down by itself , otherwise look for any burn marks or water marks that may have affected its circuitry
If you’re brave enough, you could replace the stepper motor (the little motor that sweeps the RPM Needle up & down)
Update us with what you do first before we go the route of replacing the stepper motor, you may end needing soldering skills too.