SOHC.co.uk Forums > CB350/400
Is there an easy way to test for charging ?
McCabe-Thiele (Ted):
Now that I have the bike running I need to be sure that the battery is being charged by the alternator before I take her any distance for a run. I guess the ignition light going out is pretty meaningless on a bike.
Is there an easy way to test if charge is going into the battery without too much complicated stuff - the charging system is a standard original wiring layout with the original silicone recifier & pointless regulator I think its called?
Neither unit has been replaced by me.
K2-K6:
Yes, voltmeter on battery terminals, check before starting (should be about 12.3~12.9v) then started it should climb to about 13.95v ish volts by 3~4000 rpm.
Job done, if it doesn't climb above original volts, nothing is happening.
McCabe-Thiele (Ted):
--- Quote from: K2-K6 on April 19, 2022, 05:45:49 PM ---Yes, voltmeter on battery terminals, check before starting (should be about 12.3~12.9v) then started it should climb to about 13.95v ish volts by 3~4000 rpm.
Job done, if it doesn't climb above original volts, nothing is happening.
--- End quote ---
I'll try that and see what happens - what's the first suspect I guess it the Regulator that DS do not have most likely to have rusted away internally like my flasher unit?
Johnwebley:
If you haven't got a meter,
Run the bike in a dark place, turn on the main beam,slowly increase the revs, lights should brighten until about 2,000rpm when they dim slightly as the regulator kicks in.
If you hold the front brake on as well, the stop lamp will do the same.
Sent from my SM-A750FN using Tapatalk
McCabe-Thiele (Ted):
--- Quote from: Johnwebley on April 19, 2022, 05:56:46 PM ---If you haven't got a meter,
Run the bike in a dark place, turn on the main beam,slowly increase the revs, lights should brighten until about 2,000rpm when they dim slightly as the regulator kicks in.
If you hold the front brake on as well, the stop lamp will do the same.
Sent from my SM-A750FN using Tapatalk
--- End quote ---
Worth a try except I have LED bulbs so might not work - I have an AVO meter but tbh the owner is pretty unaware of what it can do.I can pretty much only test AC & DC voltage the rest is a mystery to me.
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