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Discussion Starter · #1 ·
Want to add a tack to my 06 Deluxe FLSTNI. My diagram says one wire conects to Tachometer power/ingition positive lock. I have no clue what this is and hoping someone here can guide me.
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Discussion Starter · #3 ·
Does the tach have 5 wires?

long red
long black
short green
short yellow/black
short black

If so, it sounds like the short black wire goes to the ignition switch so when you turn the ignition on it will complete the circuit and power the backlight in the tach.
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Discussion Starter · #4 ·
Does the tach have 5 wires?

long red
long black
short gree
n
short black

If so, it sounds like the short black wire goes to the ignition switch so when you turn the ignition on it will complete the circuit and power the backlight in the tach.

Yes... long red and black is power for light on tack
Green is ground
yellow/black signal wire
Short black is the one in connection question
 
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