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Toerenteller heeft de geest gegeven denk ik..
Er zitten véél aansluitingen achterop de klok. Hoe kan ik de teller testen?

Hoe goed beheers je de engelse taal

The two outside terminals on the tach should have a brown wire while the other wire should be red with white stripe. These are the power wires. You should measure 12vdc between these two wires with the ignition switch is set to on. The middle wire (black with purple stripe) is the signal wire. You will want to ohm this wire from the negative terminal of the ignition coil to the middle terminal of your tachometer. You should get 0 ohms.

Dank voor de aanwijzing. Zal morgen beginnen. English no problem.