Had the same trouble, a man who knows a lot more than me has never had a regulator rectifier fail on an xb (thanks maz) i hard wired the 77 connector at the front pulley, the one with the 2 wires, and this sorted it.
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| alternator woes https://ukbeg.com/forum/viewtopic.php?f=8&t=2785 |
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| Author: | monoi [ 28 Sep 2009 09:04 ] |
| Post subject: | alternator woes |
The battery on our XB12X was completely flat after 3 days. Kind of bizarre. It also proved impossible to keep the bike going once started with a battery pack. As soon as the extra battery was unplugged, the bike would stop. It does seem that the alternator is not charging at all, and that it has been happening for a while. That last trip was the final straw drawing on the battery. I did not expect to have the bike on the back of an AA truck after 1 month of ownership. Not only that, but it was at the dealer 2 weeks ago for the 5000miles service (Apart from this issue, I also noticed 1 bolt missing from the belt tensioner. What do they do when they service bikes?!). We had an issue with the fuel pump fuse blowing up before the service, I wonder whether the 2 are not related. Anyway, are alternators prone to failure on those bikes? |
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| Author: | Rays [ 28 Sep 2009 10:43 ] |
| Post subject: | Re: alternator woes |
Stator, voltage regulator and '77' connector are all potential suspects on the earlier 12X's. This was a recent post on the topic: viewtopic.php?f=8&t=2542 |
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| Author: | b16_4ndy [ 28 Sep 2009 11:21 ] |
| Post subject: | Re: alternator woes |
Had the same trouble, a man who knows a lot more than me has never had a regulator rectifier fail on an xb (thanks maz) i hard wired the 77 connector at the front pulley, the one with the 2 wires, and this sorted it.
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| Author: | monoi [ 28 Sep 2009 15:58 ] |
| Post subject: | Re: alternator woes |
I'll check this 77 connector, but it would be quite surprising as the bike is quite pristine, has just 5000 miles and is an 08 model! It feels like a fried regulator as there is absolutely no charging once the bike runs. Good thing it is under warranty. Seems like american electrics are no better than italian ones (although the latter never actually left me stranded away from home!) |
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| Author: | Motorrad [ 28 Sep 2009 17:09 ] |
| Post subject: | Re: alternator woes |
Your '08 has a different wiring setup that earlier models. The "77" connector seems to have been an issue more with the older bikes. I don't know if the '08 connection has the same tendency to fry. |
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| Author: | THE FLYING DUCHMAN [ 28 Sep 2009 17:38 ] |
| Post subject: | Re: alternator woes |
monoi wrote: I'll check this 77 connector, but it would be quite surprising as the bike is quite pristine, has just 5000 miles and is an 08 model! It feels like a fried regulator as there is absolutely no charging once the bike runs. Good thing it is under warranty. Seems like american electrics are no better than italian ones (although the latter never actually left me stranded away from home!) The bike uses parts from Jap, Ger and Italy among others. The ignition switch is Italian for a start. |
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| Author: | gunter [ 28 Sep 2009 20:36 ] |
| Post subject: | Re: alternator woes |
The pre-2008 vregs were american indeed, I can't tell anymore which brand exactly, maybe it's buried somewhere in the archive. I tried to find a replacement, but didn't succeed to find one capable of handling 500+ watts. So it seems the OEM part is the only one that might do. |
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| Author: | monoi [ 29 Sep 2009 07:46 ] |
| Post subject: | Re: alternator woes |
Well, I've reconditioned the battery, and installed this battery bug contraption I had lying around. The bike started without trouble, and it seems the charging is fine... Sooooo....the suspicion is falling on the rider (my wife) and I am suspecting that when she locked the steering, she turned the key that little bit more and switched on the parking lights...3 days like that, and the battery would be dead. That would explain everything, and sorry to say, exactly what a woman would do! |
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