Tacho techie talk

Steve the tachometer technical support guy was back at his desk this morning, so we had a good chat about wiring the new one to the old harness. He said they'd never had a problem with the adaptor, and confirmed what I'd thought I'd been told by the supplier – that the old connector should simply unclick from the back of the existing instrument and plug into the adaptor.

Very usefully, he emailed me a PDF of the fitting instructions for the old model, and the diagrams there certainly match those in the engine manual. But playing around in my mind with the orientation of the adaptor and socket wiring, I still can't see how the wires are going to align correctly, and he wasn't able to enlighten me.

We hope to go up to Erin Mae at the start of next week, and then I shall be able to see exactly what's what. Steve is very willing to talk about it again once I have some field experience!