Charge system test readings (Aprilia RS125/3)

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Flywheel test

Disconnect the alternator wiring connector.

Start the engine and rev it up to 5,000 rpm.

Measure AC voltage across the three yellow wires using a hand-held multimeter. A reading below 53 V indicates a faulty alternator.

Standard loadless voltage: over 53 VAC at 6000 rpm.

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Article about repair motorcycles «Aprilia RS-series RS 125» (1998-2005): «Charge system test readings»: https://motoinstruction.ru/en/Aprilia/RS/RS125-3/electric/starter/112915 <a href="https://motoinstruction.ru/en/Aprilia/RS/RS125-3/electric/starter/112915">Charge system test readings</a> - article about repair motorcycles «Aprilia RS-series RS 125» (1998-2005) from section «Starting and charging system». [url=https://motoinstruction.ru/en/Aprilia/RS/RS125-3/electric/starter/112915]Charge system test readings[/url] - article about repair motorcycles «Aprilia RS-series RS 125» (1998-2005) from section «Starting and charging system».