I have a 2008 Yamaha 50hp with aprox.40hrs. When ign. switch is off the tach light is on and the fuel gauge is active checked ign.switch it checked good but, replaced it anyway still have problem. Thanks for any help.
It’s the Yamaha factory tach.
You may have a a stuck relay or a short to ground, If you pull the ignition relay and the light does’t go off you maybe have a short to ground. In that case back trace it to the switch.