Hi, the speedo on my Formula 27 has stopped working. It's mechanical with the cable leading to the 5 speed type 9 gearbox. At least I think that's where it's going - hard to see without putting the car on a ramp. Any ideas what could have bust? How can you tell if it's the cable and not the clock? If it is the cable - anyone know what's the replacement part and is it difficult to fit? Many thanks for any advice.

Hello if you unscrew the cable from the speedo it should rotate when the vehicle is moving
If its not moving then its most likely the cable or the or the gearbox speedo drive.

that's very helpful. thanks