How do I connect tach to MSD 6AL?

How to Hook Up a Tachometer to an MSD Ignition

Strip the end of the trigger wire for the tachometer, and place a female-to-female connector to it.
Run enough wire to reach the MSD ignition control box mounted on the firewall in the engine compartment.
Attach a male connector to the end of the tach trigger wire.

What color is the tach wire on MSD 6AL?

Gray
The MSD Ignition features a Gray Tach Output wire that provides a trigger signal for tachometers, a shift light or other add-on rpm activated devices.

Which side of coil does tach wire go?

Tachometer installation can be as simple as connecting the tach’s sending wire to the negative side of the ignition coil, while other ignition systems feature a dedicated tach sending circuit. In either case, installing the tachometer incorrectly can cause significant damage to both the tach and ignition system.

What kind of tachometer does MSD Ignition control use?

TACHOMETERS The MSD Ignition features a Gray Tach Output wire that provides a trigger signal for tachometers, a shift light or other add-on rpm activated devices. The Tach Output wire produces a 12 volt square wave signal with a 22.5° duty cycle. Some vehicles with factory tachometers may require a Tach Adapter to operate with the MSD.

What are the tach wires for a MSD 6A?

I just installed an MSD box and I can’t get the tach to work now. There are four wires running from the tach. Green, red, yellow, and black. Yellow is for the light and black is ground. The red went to +coil and the green went to -coil on the old points style ignition but MSD says thats a no no with the box.

What kind of tach signal do I need for my 6AL?

This is PN 8920 and is normally used to trigger stock and aftermarket type tachometers that require this type of signal. You could also use it to trigger aftermarket fuel injection systems. The tach output on the 6AL will produce a 12 volt square wave.

What does black dot mean on MSD 6AL wiring diagram?

Everything depends on circuit that is being constructed. According to previous, the traces at a Msd 6Al Wiring Diagram Chevy represents wires. Occasionally, the wires will cross. But, it does not imply connection between the wires. Injunction of 2 wires is generally indicated by black dot on the junction of 2 lines.