Tachometer connection missing on Aftermarket switchbox

Gcummings0871

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Aug 19, 2013
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I have recently begun fixing up my 1968 Mercury 1000. Ever since I bought the boat I have never had a reading at my Tach. This past week as I was rebuilding my carb's I noticed a frayed brown wire coming from the distributor. Long story short I have discovered that this wire coming from the trigger is the signal wire for my Tach. I was all excited until I found out the Switch box that was installed (CDI 114-2986) has no brown wire coming out. My question is this. Can I run the brown wire directly to the "g" terminal on the engine wireing harness that goes to my control box? and thus "fix" my tach? Or does the signal have to go through a switchbox?

Thanks in advance.
 
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