wireing a medallion tachometer

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kickstartmyheart74:
just picked up a old medallion tach at a flemarket. any one know how to wire it? it has 5 wires. white,red,black,green and yellow. the only thing i can find on the net is stuff for boats.   thanks jason

eroc022:
well if I were to guess....... going off of other tach wire hookups, also depends if it has a memory setting where you can see your shift points or memory recall
Red - 12v
Black - GND
Green - Tach Input/ coil wire
Yellow - possibly 12v ign or for dash lights
White - possibly for either hookup to an msd box that outputs a different signal, or another dash light lead

kickstartmyheart74:
i don,t think it has a recall. this thing is oldschool and cheap looking.maybee for msd or other .   thanks

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