Is this normal?

[7omly]

The nightmare continues. I purchased a low mileage (15,500 miles) and they look mint. I followed the advice of foccers and removed the speedo healer. I fitted the replacement clocks and the fun began. As soon as I switched the ignition on the speedo needle went to 28mph. I took the bike for a ride and ridethe speedo responds oddly. I reckon I was doing around 45 but the speedo was showing around 75mph. My bike appears to have an electronic speedo pick up on the left fork leg. Are these Kmh or Mph specific. I beginning to despair. The bike runs perfect in all other respects. Whilst I was removing the speedo healer from the junction box under the tank I found this item with a green wire going into one side and a black/red one coming out of the other but not connected to anything. Any help would be grateful because I now have the better half nagging me about buying a dog, not the canine variety but the bike. Women don't understand that at 15 year old it just might need some maintenance.
:'(