wire colours for tach?

tuna troller

Cadet
Joined
Jul 27, 2008
Messages
27
hi, i have a 1980 e50elcsr (50hp). what colour wires ( on the engine) should i use to hook my rpm gauge up to? and what is the best pick up points?

thanks tuna
 

jtexas

Fleet Admiral
Joined
Oct 13, 2003
Messages
8,646
Re: wire colours for tach?

Purple => IGN
Black => GND
Gray => SND (it might be "grey", in jurisdictions where "color" is spelled "colour") ;)
gauge illumination (tie into another gauge lighting wire) => LT

If you have the OMC control box, there's a socket covered by a rubber boot, located just under the throttle friction control knob (which is just under the keyswitch), that accepts a plug&play tach wiring harness.
 
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