Problems with your tacho flickering and reading erratically are most likely a gauge cluster fault.
Mazda Rx7 FD series 8 dash clusters are almost impossible to find secondhand, but for a small cost $295 + freight, we can fix these tacho’s.
Simply remove the dash gauge cluster and send it to us, and we will test & repair and send it straight back – allow 2 working days + freight.
$$295.00