Mercruiser thunderbolt ignition

[Shamwowguy]

Purchased a new Thunderbolt ignition for my 5.0L (1996) because she was cranking but not firing. New version has a ground wore (old had 2 wires only). I connected ground to where carb bolts down and she fired up until today when she stalled and i have the same symptoms as before the new ignition rotor and cap. Am i mossing something? Os there a better place i should ground? Any thoughts appreciated

Dave

 

[alldodge]

Howdy
Don't see where the ground is located as the issue, it just happened to start running again after it was replaced. Have you run thru the TB troubleshooting chart?