Hi Orange welcome to the forum. Chances are it is just the tach cable.There should be a thick rubber covered cable coming from the tachometer to the engine. Check to see if one end or the other is broken.

Good luck and keep us posted.

Dusty OK can that Idea if your tach is just spinning then I would think it would be the tach itself. Parts at Kubota dealer, Ebay? I really need to read the questions better before I open my mouth.