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Old 29-Jun-2009, 00:40
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Dougie748 Dougie748 is offline
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748 battery flat

Hi all looking for help on my breakdown today. Out on my 748 today and covered 60 miles no problem. Stopped bike for ten min then it would not start. When pressed starter button nothing but clicking from a yellow box on right hand side behind fairing. I switched the lights off and the clicking stopped. The i relised my battery was flat. RAC attended and put jump leads on and bike started first time but rev counter was eratic jumping from 1000 to 3000 revs. Checked with volt meter and it was reading just over 12 at tickover but reduced to 6 when reved. Got bike home on trailer and put battery on charge and cleaned wire connectors from regulator.
Can anyone tell me if its my battery or regulator thats goosed or what the problem could be.

Thanks in advance Doug
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Old 29-Jun-2009, 04:53
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DSC Member Jools Jools is offline
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Should be reading around 14.4 volts at idle and stay around there when revved although you will see it fluctuate a bit as the reg/rec does it's bit, so it sounds like the reg/rec rather than the battery - although you might also want to check the charging fuse.


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Old 29-Jun-2009, 11:01
TopiToo TopiToo is offline
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Hello Dougi748

maybe of some help.

http://www.ducatisportingclub.com/sh...ad.php?t=78401

TopiToo
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Old 30-Jun-2009, 00:34
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Dougie748 Dougie748 is offline
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not sure what the problem is. put battery on charge today and it started first time tonight and tickover was sitting just under 1000 and steady,
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Old 03-Jul-2009, 16:11
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Dougie748 Dougie748 is offline
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Thanks Guys for your replies which has been very helpfull.
I fully charged the battery cleaned the conector block behind the battery leading from the regulator and gave it as good old clean with WD40. I have not been out on it yet as I was wanting to check the battery and charging system with a multimeter first.
The reading at tickover is 14.06 and when reved goes up slightly to 14.10.
Does these readings look correct and do you think the problem was the dirty contact from the block connection to the regulator.
I will give it a run on Sat and hopefully it will be okay
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Old 03-Jul-2009, 16:30
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Yep, sounds like it's in the right ballpark.

Pay attention to that Shazaam! article though, if the connectors have got a high resistance they'll get mighty warm, mighty quick


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