a sunpro mini tach

[Bronk74]

Does any one know how to hook a tachometer up to a motor? I have a mini tach sunpro. it has 4 wires coming off of it. white, black, red and green. where do these wires go? keep in mind i have a centech wire harness.



TD in LV

 

[73stallion]

on the centech harness you will have a yellow wire under the dash marked tach sender. connect the green wire off the tach to the tach wire in the centech.

the red wire goes to 12v power, the black to chassis ground, and the white is for the tach light. i always hook the white light wire to an ignition on source so the light comes on with the key. you'll still be able to see the tach under an overpass or in a dark area.

 

[bronco-uno]

black: negitive battery terminal (ground)
green: negitive on ignition coil
red: hot positive (ignition/key)
white: hot lead from lighting


http://www.sunpro.com/publish/2004/08/05/pdf_english_16325.pdf

 

[COBlu77]

I have the same tach. One small tip I'll give you is to hook the White (tach light) wire into the same wire that controlls your instrument and dash lights. Then it comes on when you turn on the lights and brightens or dims with along with the instrument/dash lights. On a Centech harness I'm not sure which wire to tell you to use for this, but I'm sure someone else knows.