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Old 10-10-07, 06:00 PM   #4
Spanner Man
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Join Date: May 2005
Location: Sunbury Middlesex
Posts: 1,396
Default Re: is my alternator knackered???

Good evening.

A permanent magnet alternator such as the SV's will continue to pump out increasing AC voltage the higher it spins.
I think you'll find that if all is well with the charging system after 5000 rpm the regulator will start to errrr regulate, & start to lose the excess AC voltage as heat. Therefore if the alternator is to specification at 5000 rpm it is capapble of supplying the bikes demand.

Cheers.
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