On the back of the cluster board there is a resistor that burns out. If you take the board off you can see the burn marks on it.
Look for a loose ground/connecting wire.
The tachometer cable may be faulty. The tachometer sensor, on the side of the engine might not be functioning properly.
A blown fuse.
If the tach wire shorted or melted.
no The tacho picks up pulses from the starter motor or ignition system.
you need a new onr they do this occasionally and then need to be replaced
Check the fuse
If the tachometer on your XS1100 stops working, it could be due to a faulty or disconnected cable, as the tachometer typically relies on a mechanical or electronic signal from the engine. Additionally, a malfunctioning ignition system or a blown fuse can also disrupt the tachometer's function. Checking the connections and testing the cable for wear or damage is a good first step in diagnosing the issue. If these components are functioning properly, the tachometer itself may need repair or replacement.
Look at the glass and see if it didn't slip and that will stop the needle from moving, otherwise it will probably have to be replaced.
fuse to the dash gone ???
well...........its just a guess..............but it IS from 1995
The speedometer and tachometer on a 2011 Chevy Silverado can stop working due to issues such as a faulty vehicle speed sensor (VSS), a malfunctioning instrument cluster, or problems with the wiring and connections. Additionally, a blown fuse or issues with the engine control module (ECM) can also disrupt their functionality. Regular diagnostics can help identify the specific cause of the failure.