[mercoupe50]

The cobra has been in a museum for a few years and I am back to trying to chase the problem.

I havei checked the ground wire from the battery to the frame. I have run a wire from the frame to the motor. I ran a wire from the motor to the regulator thinking the alternator might not have a good ground. The alternator and regulator have been replaced.

If the battery is low I don't get the dance while it is charging. Once the battery is charged, I get the dance, more at fast idle then slow. If I turn on the headlights on high beam the dance goes away for a period of time on fast idle. It later returns but not as bad. So with a load I don't get the dance?

All ideas are welcome.