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ROSSI 46
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Discussion Starter · #1 ·
Battery is a few months old, bike's charging system works as it is described it should in the Yamaha book, however upon cold startup with the multimeter hooked up the voltage spikes up to 16-17 volts for a second or two and then goes back down to 13.5 to 14 volts where it sits at idle, and at 5k RPM it reads around 14.5v. Bike charges absolutely fine at all times.

So my question is what is up with the voltage spike upon cold starting the bike, could it be because of the HID system powering up, and can 16-17 volts being sent to the battery for a second or two hurt it ?
 
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