I recently disassembled mine; here's what I have in my notes from my 1972/4. Looking at the plug, where the (O) is the locating pin, no wire, and the O designates the pins with wires:
CODE
2 O (O) O 1
4 O O 3
6 O O 5
8 O O 7
10 O O 9
12 O O 11
14 O O 13
Then I have this for the colors by above pin number:
1: yellow
2: blue, gen
3: grey/pur, back-up lights
4: grey/pur, back-up lights
5: green/brown, oil pressure
6: (empty)
7: black/pur, tach
8: black, keyed +12 ign
9: green/white
10: brown
11: (empty)
12: red
13: black/red
14: red
(3,4,5,7,8 were the only wires I was looking for, so that's why they are the only ones above with a labeled purpose)