Installing a tachometer

SCOTTYJ

MEMBER
MAZDA TRUCK

I have a 1991 mazda b2600I 4x4 truck with manual shift. I would like to install a tachometer. In the instructions it says to hook a green wire from the tach to the negative side of the ignition coil or appropriate signal source. I see 4 wires coming out of the distributor (not spark plug wires) and I beleive two from the coil and another that just terminates with a plastic plug on the end. Can you tell me which is the proper location and wire to connect the tach to. I am ok with the other wires on the tach but do not know where to hook it to the coil or the distributor.
thanks for any help

2 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Put green wire to the negative terminal of the coil which will be marked on the coil and it will be the smaller wire. The other wires are to ground the rest is for your tach light.

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Tuesday, March 27th, 2007 AT 10:09 PM

HELLCAT18

MEMBER
21 POSTS

Another thing you could do is find a dash board out of the same year truck(does not have to be the same model) and switch the gauge clusters. My '86(they didn't do much changing over the years)had a bone stock gauge cluster but I swapped it for one out of a 2200 with the tac and it works.