Armed with the info from Martin as it was only 3 wires (out of 4) on his tacho that needed changing, having got home from a "recharge the battery" blat (another story), I thought I'd have a go and see if I could do it myself without the need of any assitance.
I gingerly unscrewed the mounting from the tacho and lifted it out of the dash. Only 3 wires I thought, simples.
Except that my tacho has, oh I'd put a rough guess of at least 10 wires going in...
Eh thought I, that can't be right surely. The I've looked at Martins pictures - he's got a different tacho to mine
I'll wait for the dummies guide that myothercarsa2cv (john) is going to kindly produce. They say a fool and his money are soon parted - if I even begin to think about snipping wires, I will have my wallet lightened by CC: for fixing all my "work"
Mike
07 Plated RoadSport SV 150 in Red with Black nose band and stripe