How do you install a tachometer in a 190E -86?
I've changed from a panel with just a clock to one with tacho AND a clock.
Can't get my tacho running..... One green/yellow from one of the connectors, the other side got two cables, black/blue and black + +.

How do I make this work??

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frogs
Mercedes 190E -86
Kawasaki Voyager 1300 -85

Fredrikstad, Norway
Heia FFK!