Sprint Clocks - How Do I Test Them?

I have what seems to be a set of clocks, the speedo, from a Triumph Sprint ('03/4?) and want to test them to see, if A) they work and B) I can use them on a project.



They have coloured wires I cannot find in any online manual. Has anyone got a photocopy of that part of the loom they could send to me> from a Haynes manual?
Can you identify which wire is what?
The light for the clocks is Red/Black (live) and Black (earth),
Which wires for the hall sensor?
Is it Blown?

I have a sensor, which I have found how to test and it works.
What do I do to the speedo to test if this thing reads the pulses from the Hall sensor?

Any help would be appreciated.