123 ignition with MSD, It tries to catch, but no start Options

[blabla914]

So I’m wired up
Blue ground
Red ignition hot
Black to white MSD
I’ve got the green LED at Z1 on the flywheel 1 TDC
I re-installed plug leads with #1 aligned with where the rotor points with the green LED on.
I can see 12VDC on the 123 dashboard while cranking.
Just spent 2 hours double checking verifying etc.
no change.
I know lots of people are running this with MSD, Ben being one of them.
What have I missed?

Attached is a pic of my wiring. Yes I know my coil wire is a tad short.

[Mark Henry]

C&P from the bird post #8 of this thread by member rwest:
Original thread here

Hi Ben,

Just looked at my setup and the black wire from the 123 goes to the white wire from the MSD.

Blue goes to ground, red goes to power and I opted not to use yellow, so it is taped up.

Rutager

It should be easy to test, take the coil lead off the cap, stick a screwdriver in the coil wire, put it about 1/8" to 1/4"from a good ground, turn it over and you should see a good spark.
You can also do this with a tester, don't ground yourself out a MSD packs a wallop.