How do I hook a tach to a 1991, 35hp?

ablank

Cadet
Joined
Jun 19, 2007
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I have a new Faria, Euro style tach. The engine did not have a tach when I bought it, but the controls have a tach wire that runs to the terminal strip on the side of the motor. The terminal strip has the location for the "purple wire". The issue is...

What do I hook the pruple wire to, on the engine, in order to get an RPM signal?
 
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