charging problem any advice please
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thrasher
- Settled in member
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- Joined: Fri May 02, 2008 4:37 pm
- Bike owned: nc30
- Location: beverley,east yorkshire
charging problem any advice please
anyone any advice on why battery keeps on going totally flat when running with lights on? totally dead ,but then if left for a while theres enough juice to turn bike over and start it?
can run bike with no lights ok.done this with 2 batterys.
tested reg/rec at 5000rpm and getting about 15-16v but when lights on voltage drops below 12v.
also tested yellow wires out of alternator getting 450ohms which haynes suggests is right.
really stumped here any help suggestions please???
can run bike with no lights ok.done this with 2 batterys.
tested reg/rec at 5000rpm and getting about 15-16v but when lights on voltage drops below 12v.
also tested yellow wires out of alternator getting 450ohms which haynes suggests is right.
really stumped here any help suggestions please???
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Neosophist
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Re: charging problem any advice please
Your altenator and reg/rec sound buggard.
your not supposed to have 450ohms from the altenator wires.
Between the yellow wires your supposed to have 0.1 - 1ohm.
15-16v is too high too. It's supposed to be 14.1
your not supposed to have 450ohms from the altenator wires.
Between the yellow wires your supposed to have 0.1 - 1ohm.
15-16v is too high too. It's supposed to be 14.1
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...
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thrasher
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Re: charging problem any advice please
sorry meant pulse coil resistance 450ohms. think its white/blue to blue and green/white to green.
should the voltage jump to 14.4v at 5000rpm or slowly increase?
should the voltage jump to 14.4v at 5000rpm or slowly increase?
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wullvfr
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Re: charging problem any advice please
the charge rate at the battery should be between 13.5-15volts at 5000rpm.
this is without the lights on.
i would suspect the alternator to be on it's way out.
best bet is to test the voltage output of the alternator and go from there.
william
this is without the lights on.
i would suspect the alternator to be on it's way out.
best bet is to test the voltage output of the alternator and go from there.
william
please,god,....give me the chance to prove that winning the lottery won't spoil me!!!
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thrasher
- Settled in member
- Posts: 60
- Joined: Fri May 02, 2008 4:37 pm
- Bike owned: nc30
- Location: beverley,east yorkshire
Re: charging problem any advice please
right think ive found the culprit.reg/rec.
got a new reg/rec with fins a couple of years ago and think its goosed when it gets hot.
put old one on (original working one) and getting 14.4v at 5000rpm.everything else tests out ok.
will see in next few days how it goes.thanks for help
got a new reg/rec with fins a couple of years ago and think its goosed when it gets hot.
put old one on (original working one) and getting 14.4v at 5000rpm.everything else tests out ok.
will see in next few days how it goes.thanks for help