Mariner Tachometer with no selector (Picture included)

DRBSJR

Recruit
Joined
Mar 15, 2008
Messages
3
Hi guys,

I tried posting this in the Mariner/Merc repair forum with no luck...so I'm now fishing a new mark for the electronics guru's :D

I picked up a Mariner Tachometer from a boat jumble and was wondering if anyone knew a little about it and could give some guidance before I tried connecting it up.

The Tacho is mostly black with white numbers and an orange needle (See Picture), the writing on the face indicates:

X1000 r/min
MARINER
NIPPON SEIKI JAPAN

There are no serial/part numbers

This is the interesting part?.there are 6 pins on the back and no selector, like you get on the Teleflex gauges.

There are 2pins towards the middle, I can only assume are for Positive and ground but they are not labeled. (HELP)

The 4 pin towards the bottom edge are labeled from left to right, 12, B, 4 and G.

There is a metal bridge between 12 and B but this could be moved to bridge B and 4.

I have 97 Mariner 60hp (3cycl) 2stoke?.tacho connects via the gray wire on the 5pin harness from the control box(16900A15).

There is also a light with a blue and black wire?but....no points for connecting this up :)

Any info on how to connect this tacho up would be much appreciated as I have trawled the net and found nothing on this gauge.
 

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