Originally Posted by
blindeyed
I'm guessing (its hard to tell from the pic) that post on top of the coil is the positive terminal. It looks like the negative end of the coil is grounded next to that white box you mentioned. You want to hook up your Blue? (usually green) wire to the negative end of the coil, first picture.. bottom left circle.
Looks like you might have your ground wire hooked up on the right side of that white box. I would suggest moving it to a different location a bit further away. You might get an improper reading having your ground and signal wire that close together.
Tach looks good though man
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