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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Regulator wiring for Alton
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<blockquote data-quote="Pete Appleton" data-source="post: 10710" data-attributes="member: 145"><p><strong>Battery discharge</strong></p><p></p><p></p><p></p><p>Morning, Len</p><p></p><p> Yes I had exactly this problem, but it was down to a confusing wiring diagram and my ignorance. </p><p></p><p>There are two wires from the regulator that go to the positive supply. One of them (the red I think) is the charging lead and should be on an unswitched connection to the ammeter. The other (green?) is the voltage sensing lead that the regulator uses to determine battery voltage and er.. regulate. This sensing lead has an extremely low voltage draw, in the order of a few milliamps, and will flatten the battery if left for a couple of weeks. This lead should be connected via the ignition switch if you have coil ignition. For those with magnetos then some means of disconnecting this green wire is required when leaving the bike parked up. This needs to be done with extreme caution as starting the bike up with this wire disconnected will cause the regulator to 'see' a dead flat battery and go to maximum charge voltage with unfortunate results for just about everything electrical on the bike.</p><p></p><p> Pete</p></blockquote><p></p>
[QUOTE="Pete Appleton, post: 10710, member: 145"] [b]Battery discharge[/b] Morning, Len Yes I had exactly this problem, but it was down to a confusing wiring diagram and my ignorance. There are two wires from the regulator that go to the positive supply. One of them (the red I think) is the charging lead and should be on an unswitched connection to the ammeter. The other (green?) is the voltage sensing lead that the regulator uses to determine battery voltage and er.. regulate. This sensing lead has an extremely low voltage draw, in the order of a few milliamps, and will flatten the battery if left for a couple of weeks. This lead should be connected via the ignition switch if you have coil ignition. For those with magnetos then some means of disconnecting this green wire is required when leaving the bike parked up. This needs to be done with extreme caution as starting the bike up with this wire disconnected will cause the regulator to 'see' a dead flat battery and go to maximum charge voltage with unfortunate results for just about everything electrical on the bike. Pete [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Regulator wiring for Alton
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