Issue With Ammeter Wiring

[Viper]

Not sure about the higher rpm or the cranking, will check at some point. okiemark, the problem is that it's in the negative.

[bmorgil]

With the engine running at idle, it is possible the original 6 volt system may not have the ability to provide enough current to charge or balance the load. When you hold the RPM's up to 1500 or so, that will provide the generator enough speed to produce some good current. If it does not move back to 0 or "+" amperage the system is not putting out sufficient current. Keep your volt meter across the battery. Record the voltage at idle with the lights on and the engine idling, and then at around 1700 rpm. Let us know what you get. It should be fairly easy from there once a little diagnostic is done.