uh oh, MerControl wiring

okay, i just got done replacing the ignition switch in my 1979 MerControl for same year 115 inline 6. I have a problem though, a leftover wire in the harness that is not used anymore. The way i have it wired is as follows...

Harness.....switch........use
red............red...........battery power
black.........black.........ground
gray......yellow/black...choke
yellow...yellow/red......solenoid
orange..black/yellow....short/kill
N/A........purple...........ignition circuit (acc.)
white?....??????..........???????

THe white wire from the engine harness is the wire that i cannot figure what it does. THe motor turns over fine, and there are no extra wires on the switch (6 wire switch). Does anyone know what is up?

Re: uh oh, MerControl wiring

here's a wiring diagram http://www.maxrules.com/oldmercs/Wiring/1966ona/35.jpg

Re: uh oh, MerControl wiring

the White wire is pin "F" in this diagram. my harness does not have pin "F". Since my motor was the first year for CD electronic igntion, i think mercury just used the same harnesss from previous years, and this wire is not needed at all for my motor. Thanks

Re: uh oh, MerControl wiring

yes, Merc used the white wire for switched +12VDC power. This was needed for the early 1979 and earlier inline sixes and fours that had Battery-powered CDI Ignition and distributors.