06-01-2016, 09:03 AM
According to this wiring diagram (Its the same tacho connection for all the diagrams with voltage stabilizer) you should connect direct to a 12v line.
I had endless problems with accuspark and aftermarket tacho, which were eventually solved by putting a 'floating earth' on the w/b input line, but its unlikely you will need this with an original unit
I had endless problems with accuspark and aftermarket tacho, which were eventually solved by putting a 'floating earth' on the w/b input line, but its unlikely you will need this with an original unit
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