| Author | Message | ||
     Barraspalding |
I was in my local HD grabbing some coolant and discussing the electrical system when a guy mentioned a motorcycle specific auto electrical specialist in my area, Gave them a call and they knew of this stator issue (amazing given the limited numbers here in SA). They are suggesting rewiring the stator for less output (I assume this would ve similar to installing a 2008 stator). Is this a viable solution where the HD harness could be removed and have no other problems pop up? | ||
| Mbest |
That's not a good answer for the problem. You need to have a minimum power size Stator to run the bike reliably and keep the battery charged. As an example, if you need 20 amps to run the lights, fuel injection, ignition, ECU, heated grips etc, then that much power is supplied from your Stator. If you drop to a 15 amp Stator, your battery is making up the missing 5 amps and will soon be dead, along with your bike. The size doesn't matter as long as it's not too small. it can be a 1000 (yes thousand) Amp Stator in the bike, but it will only put out what the bike needs at the time. mike | ||
| Pwillikers |
There is a guy that does custom rewinds with higher temperature wire (do a search here for fernando tucson stator). I have his rewind with an EBR rotor with the oil hole that is going strong in TX summer heat for over 10K miles. | ||
| Terrys1980 |
Size does matter when the excess current is given off as heat. I would not do any stator fix/mod without the oil jet modification to the rotor. All the 2008's run the smaller stator without a single issue and just because Buell increased the size doesn't mean it was a good idea. So instead of getting it rewound. Buy the 08 stator and cover. PS I doubt he'll be running heated grips in South Australia.. | ||
| Mbest |
Size does matter when the excess current is given off as heat. There is no "excess current". There is only current used/needed. Yes, more current means more heat needs to be dissipated. If the current you need to get the job done creates too much heat, then you need better cooling like the oil hole mod, Higher temp components, or reduced power consumption. | ||
| Terrys1980 |
The excess current is shunted by the regulator, increasing temp of the stator.. | ||
| Joe7bros |
Which is why you want to replace that Ducati shunt regulator with a series regulator | ||
| Mhpalin |
Why I have two 1125s both with 08 charging systems, stock regulators and original battery's no issues if it's not broke don't fix it  | ||
| Barraspalding |
My hesitation to pursue the oil hole rotor is purely cost - to buy the part is outright ridiculous when you factor in freight and exchange rates (oh how i miss late 2012 when I honeymooned in USA, and the AUD$ was above parity to the USD$). I may have found a local engineering business with appropriate tooling to perform it but its a total experiment - naturally the folks who have spent $ creating jigs and run a business selling the modified rotors are not going to share anything to assist some bloke on the other side of the world. If the hole ends up being too big then (i assume) oil pressure is up the poopoo. And no heated grips required here. In mid winter a pair of winter gloves is more than adequate. | ||
| Mhpalin |
If you can find a 08 for a parts bike it's worth it and the 08 charging systems work great. | ||
| Stevel |
Neil, I am not in favor of the oil hole mod. I know everybody here thinks that it is the cat's meow, but there is a significant downside to this. This mod bleeds oil right off the crank and no one, including myself, has made a check to see how much this mod has affected top end oiling. My point is that I have seen signs of oil starvation around the cams on some engines. I don't know why. I do not know how much overcapacity there is at the oil pump and that is very important in order to support the increased flow required to cool the stator. At the very least, a before and after mod oil pressure test at the cylinder heads is in order. The correct answer is a series regulator as opposed to the original shunt type, as it reduces the electric current duty cycle of the stator. | ||
| Barraspalding |
Cheers for everyones input - much appreciated. When funds allow i'll chase down a series regulator as my first port of call - will be a happy day removing the HD bandaid harness  SH847 I read is the ducks nuts. | ||
| Joe7bros |
Yes, SH847, works well; I mounted mine behind the plate holder |
