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I am going to buy a cheapy $30 Sunpro tach either by Friday or next week. I have no idea how to make it work, since I don't plan on buying an HEI distributor for a while. Can someone help?:eek: I don't have MSD or anything like that, just plain old points ignition.
 

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Isn't there a similar plug on the points ignitions?

Green - coil
White - tapped into an instrument light (I use the "light" terminal in my fuse box)
Red - Switched 12V source
Black - Ground (steering column works)

Kev
 

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Isn't there a similar plug on the points ignitions?

Green - coil
White - tapped into an instrument light (I use the "light" terminal in my fuse box)
Red - Switched 12V source
Black - Ground (steering column works)

Kev
Standard tach hook up.
White to 12V Dash Lights.
Red to 12V switched source on fuse block.
Black to Good engine ground.
Green to neg side of ignition coil.

The link below should handle the visual representation of the hook up.
http://www.offroaders.com/tech/images/autogage2.jpg

James Y.
 

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I used to run a sunpro tach with points and the green wire goes to the neg side of the coil. If you have not already purchased the tach, don't. Save up and spend the extra money on a good one like an autometer. You wouldn't believe how far off they are on the rpms. Mine was off by about 800rpms. At 6400 on the sunpro it was actually 7200.
 

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The trigger wire off of the tach will go to the negative side of the coil. Crimp on a ring terminal on the wire end and put it under the threaded post on the coil.
Also make sure when you are routing the wire to the coil that it cannot become easily shorted out. If it does it will kill the engine.

Jim
 
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