205 Mi16 Rev Counter

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Hi all,

 

I'm wondering if anyone can tell me which wires I should have at the rev counter on my 205?

 

I have a 1.9 Mi16 conversion and the rev counter was working when I had the wiring done, but it suddenly stopped after a few weeks. (Its a phase 1 205)

 

I originally thought it could be the gauges so I have acquired another set, and no joy.

 

I have a feed coming from the coil that I have belled out, and all the fuses look to be intact, although I'm not 100% sure which fuse I should be looking at...

 

Other than that is it just the live and earth wires that I need?

 

Thanks,

Andy