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  • Can anybody point me in the right direction with a problem on my MT125. I fitted a new battery, gel instead of acid, more amps, 7A instead 5.5A. Been out for a good run tonight about 50 mins around the north circ road and the alternator light stays on constantly.

    Just checked the battery and it has charged on that ride up to 100% according to my tracker.

  • You might have a problem with the alternator :)

    If you check the voltage across the battery terminals when the bike is running it should be around 14v. If it's more like 12.8v then the alternator connections or the alternator itself would be a good place to start.

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