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Yep, sounds like you should go through the main battery connections and check the ground's. It could be something that simple. I'd also verify your charging system's condition by simply running the motor and measuring the battery terminals with a multimeter. You should get around 14v+ when the charging circuit is working properly.
 

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Bad voltage regulators can cause a wide variety of electronic induced issues. The whole point of the regulator is to smoothen out AND convert the AC signal from the stator into the clean DC sinewave. It does this using an integrated circuit and unfortunately, they're very sensitive to heat, even though the byproduct of this conversion IS heat. With most Ducati superbikes, the regulator is located near the exhaust, which generates more heat. So the potential for failure is much higher then it would be if lets say, the regulator was mounted up under the seat like a lot of other bikes including some Ducati's of older vintage.
 

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Usually there is nothing physically wrong with the unit.

The good news is, the bike SHOULD run perfectly fine without it. Of course… before the battery dies. But it would be a good test! :)
 
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