Electronic speedo

[Wiggles (Paul Wigton)]

I see the sender in my BW66: does it go straight to the speedo, or is it not that simple?

[davidsxj6 (David)]

Straight, I think. There should be another wire for the CC, let me have a look

[davidsxj6 (David)]

Actually too late to have a look, but:

@Frank_Andersen

Connected at the transducer; a green wire, 12V with ignition on -
going to the speedo ‘+’. A yellow wire between the transducer and the
speedo - appropriately connected at the speedo, of course…

The same coloured wires also serves the intrval counter if fitted - and
either the speedo, transducer or the interval counter may be used as an
interconnection point to save on wiring. In which case; two wires of the
same colour will be fitted to those points…

That tells me they’ll hook up straight. I wonder where my wiring diagram is. Can’t find it.

[Wiggles (Paul Wigton)]

Thanks! That should make if somewhat easy.

Ill have to calibrate it, somehow.

[davidsxj6 (David)]

Ugh, good luck! The transducer creates pulses. 12v? Pretty much all I know. Either an interface unit, or try inside the speedo… better not?
What’s your gearing ratio?

[Wiggles (Paul Wigton)]

@davidsxj6

What’s your gearing ratio?

Final drive is 3.73, and tire diameter is TBD.