Bob, just an aside, did you carry out a speedo calibration as per the Caerbont procedure, inputting the pulses per mile for your particular wheel tyre set up, i.e. measure how far the wheel travels in one rev (In inches) divide the result by 63360 (ins/mile) to get revs/mile, finally multiplying by the number of pulses/rev to get pulses per mile, then inputting this into the speedo using the Caerbont cal' procedure. I'm guessing may be not, if you didn't have the procedure. That's my next check, have I lost the original calibration whilst "fiddling"? hayho onward and upward
Bm
