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Old 11-05-2012, 10:32 AM   #8
RecycledRS
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Joined: Nov 2008
Location: Vancouver Island
Oddometer: 1,036
I think it could just be that the lighting load and the ignition load were too much for the output of the alternator given the type of riding you were doing.

The combined loads would be well into the 200 watt range and given that the 240 watt output the alternator is rated at is at over 3500 rpm. Your idle rpm should also be around 1150 rpm so that you are not discharging the battery while idling.
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