Kioti cs2610 revcounter

[DLTTrekkers]

I am sitting with a Kioti cs2610 with a revcounter not goung to zero when switch off and shut down. I have removed the bat cable but not going back to zero revs.
Advise please ?

 

[DLTTrekkers]

Swithed off and shut down...bat dissconected

 

[Lockport]

Defective tach?

 

[DLTTrekkers]

Defective tach?

Yes .....looks like that