Percolation? Heat soak? Don't drive during summer??

RustyRatRod said

Holly **** you do NOT listen! Red to power, black to ground, white or yellow for light and green to coil negative. You do NOT have to remove the tach. Just wire it up right. REMOVE the green from ground. That's all you need to do. You'll still have the tach and that will FIX your coil problem....although it probably is damaged. That's like cuttin your leg off because you stump your toe.

Click to expand...

Ok I think things were being misinterpreted. My apologies, because its probably my fault.

Currently how the tach was/is wired up was like you just said. Red to power. Black to ground. Yellow to light. Green to negative terminal on coil.

When it is wired like that though it is causing the coil to fire when the key is in the on position before crankiit over. After taking the green wire off the negative terminal of the coil, the ignition coil no longer starts to fire before cranking the engine over.