Ignition - 12v coil and inductive tach (64-72)
Hover over a wire to confirm the colour

Note 1: Dynamo up to 1967, alternator after that.
Note 2: Tach powered from white up to 1967, from green after that.
Note 3: See here for the overdrive wiring which changed for the Mk2
Note 4: Two-fuse block up to 1969, four-fuse after that.