tom050162
Ride Bmx, Race motorbikes.
So I've recently got round to sorting the electrics out on my 1981 cg125 and come across a whole bag of issues. To begin with, the voltage from the generator is reading around 6-8v at idle. With increased revs the multimeter has been showing up to 38v!!!
Really surprised, currently running 12v bulbs and they're still being blown as clearly they can't cope with the over voltage they are dealing with. Not sure what wire to use from the Genny, as Im aware they run a direct ac lighting system so are regulated by the battery. The battery is currently showing 3.8v across the poles so not great and doubt it's charging!
Any chance some of you guys have any ideas? I know the rectifier regulates battery voltage, any way of testing the silicon diode? But doesn't explain the massive voltage variance from the generator.
Lastly does anyone have a schematic for the b/c model from 1981 I could pinch to check the earths and wire feeds?
Thanks in advance,
Tom.
Really surprised, currently running 12v bulbs and they're still being blown as clearly they can't cope with the over voltage they are dealing with. Not sure what wire to use from the Genny, as Im aware they run a direct ac lighting system so are regulated by the battery. The battery is currently showing 3.8v across the poles so not great and doubt it's charging!
Any chance some of you guys have any ideas? I know the rectifier regulates battery voltage, any way of testing the silicon diode? But doesn't explain the massive voltage variance from the generator.
Lastly does anyone have a schematic for the b/c model from 1981 I could pinch to check the earths and wire feeds?
Thanks in advance,
Tom.