As I was looking through my box of bits today I found an old sanpet rev counter & thought I might put it in the mini, however, ive lost the wire diagram, and when I took the back off, its got another cover over it all so I cant see which wires are for the bulbs/coil.
at a pinch, before I dismantle it I thought I'd see if anyone knows:
4 wire colours:
red, white, green, black.
Cheers