Does anyone have a picture of the circuit board at the rear of the speedo and rev counter? I managed to source the problem for my speedo not working. A yellow wire on the back had come loose, I managed to solder (I think that won't effect it) it back onto the board, it now works, however it is very jumpy and way way off the correct speed, doing about 40 it says i'm doing 70. Do you think it might have reset it back to KMH, os is this even possible, any help and the pic to make sure I connected it together again properly would be much appreciated. Thanks.