| Author | Message | ||
     Vinb |
Now is it possible to use the charging system from say the spider? Or maybe just the voltage regular, or maybe the parts from another rotax engine? Now could it be this simple or am I just dreadful. I'm betting some things are similar and some part swapping could help us all. Hell it can't just be the oil filter and the name rotax that's the only similarity. What do you guys and lady's out there think? | ||
| Lampo |
Use a Buell 1125R '08 stator and rotor - problem solved. | ||
| Macchiato |
This is what I proposed in the other "my stator broke" thread. | ||
| Rob_l |
Being that the Spider has the V990 Rotax engine similar to the one used by Aprilia things would be different. | ||
| Macchiato |
Rob, do you have any sources for verification? The stator itself can't be that unique, it would raise the cost. | ||
| Dannybuell |
Macchiato - I like the way you think. | ||
| Ratsmc |
Just rewind the stator. Replacing with the 08 stator (or any other stator) is way more expensive and difficult. | ||
| Tpoppa |
...or wait for the 1190RS stator to become available. I suspect that Erik Buell Racing will sell quite a few of those  | ||
| Dannybuell |
Tpoppa - where is the white knight that is going to start throwing money for that type of R&D when the Erik Buell Racing website shows an 08? Anons statements have stated that these were adequate for their purpose, racing. | ||
| Fresnobuell |
I like the rewinding solution. I wish we could nail down a vendor who has successfully rewound a stator. Seems to me the cost will be lower and chance of success higher if we can find one knowledgeable vendor. | ||
| Bueller4ever |
Quite frankly, any solution that involves changing the rotor is out for me. I'm not going to attempt to torque that nut to 3,000 ft lbs or whatever the revised torque is up to now. I agree with Rats, but I would like to be sure my problem isn't the voltage regulator and i really want Harley to pay for a new stator, so i might just leave it with the dealer again this time. (Message edited by Bueller4ever on December 07, 2010) | ||
| Fresnobuell |
300 FT LBS | ||
| Bueller4ever |
300 FT LBS I was close. I don't have a 300 ft lb torque wrench and I'm not about to start asking shops to borrow one. Maybe autozone loans out something like that. | ||
| 1_mike |
"CustomRewind" In Alabama. I'll be sending mine in after the holidays. I talked to the owner a coupla weeks ago. Nice guy, seemed to know his stuff. He'll make most any reasonable change you want...like lowering the output a little...! The web site doesn't seem to be working right now. Mike | ||
| Petebueller |
I like the rewinding solution. I wish we could nail down a vendor who has successfully rewound a stator. Seems to me the cost will be lower and chance of success higher if we can find one knowledgeable vendor. Fresnobuell I contacted regulatorrectifier.com I got on to them through a friend who bought a stator for his Triumph. Recommended by lots of guys on his forum. He got his with a 5 year warranty for under $200 landed in Australia. They don't do a stator for the 1125 but they can rewind them. A post in another topic suggested getting a winding that had more output than the 08, and less output and consequently less heat than the 09. Might be worth talking to them about that. | ||
| Bettybuell |
Custom Rewind in Birmingham AL does 1125 stators | ||
| Eece_ret |
All that is needed is a regulator that only pulls the wattage required by the bike from the stator. In this way the stator will produce significantly less heat in most operating conditions. Why?? A std. shunt regulator pulls 100% of available wattage from the stator ALL THE TIME. (Max Wattage determined by RPM, #poles/windings, and strength of rotor mag) The shunt Reg. in turn supplies the required wattage to the bike and dumps the remainder to ground. This is why the reg gets smoking hot and burns up. If we could source a switching reg or something similar then the wattage pulled from the stator would only be about 120% of what is needed by the bike at any given time, unlike now where we see 300->400% | ||
| Reepicheep |
Eece, that would be exactly correct if the only factor was heat produced by the stator. I believe there is a confounding factor of circulation of cooling oil. If the problem is lack of cooling oil at low RPM, then reducing the power output may not help you, as at low RPM there isn't much spare power to remove. (I don't know the answer, but I do know it's an important question). | ||
| Tpoppa |
Tpoppa - where is the white knight that is going to start throwing money for that type of R&D when the Erik Buell Racing website shows an 08? Anons statements have stated that these were adequate for their purpose, racing The 1190RS seems to be targeted as a street bike. It very well may use an 08 stator. I would be ok buying an 08 stator from EarrrB so long as is doesn't cost $700 or whatever amount HD is charging for it. If a simple rewind can fix the 09 stator...my guess is that EaaarB could improve the 09 stator without much R&D expense. EarrrB would sell many of these. | ||
| Eece_ret |
Reepicheep: True, hence "in most operating conditions". In the end it what is really needed is a multi factor approach. 1: More oil to the stator to wick heat away. 2: More robust Stator (windings, coating) 3: A regulator that regulates both AC and DC (reasons stipulated above) Put it all together and you should have one cool running generation system. | ||
| Ratsmc |
Why put any effort into design and manufacture of a new stator when the 08 works fine? Rewinding is the best option for us 09 owners as it is cheaper than buying a complete stator and changing the rotor. Both solution offer exactly the same benefits. | ||
| Reepicheep |
Agreed Eece! All three would kick the problems ass. And in the day of modern mosfets and microcontrollers, it seems silly to still be using shunt regulators regardless, especially in new motor designs. Unless I am missing something subtle like mechanical harmonics in stator or something... | ||
| Dannybuell |
IDK anything. The ECM is involved isn't it? I put the stock ECM in and went for s short ride no battery light at all. Its raining now. If things dry up I'll reproduce the ride that caused me so many problems last week. I want to see if the HD ecm is better than eeeebbbbbbrrrrrrr ecm. I have done this swap back 3x now. I think I can predict the outcome. Time will tell. | ||
| Sparky |
The ECM is involved if the factory "recall kit" per Product Campaign 0507 has been worked on your bike. In it the ECM is wired up and flashed to operate a relay that switches in one of the three stator wires to the VR as the electric charging system demands. So, if the parts involved in Prd Cmpn 0507 are installed and you change out the ECM for one that is not properly flashed, the results could be a battery that does not get full charge when needed, in other words, eventually a run down battery. | ||
| Theothers2t |
From Michael @ Erik Buell Racing: "Our ECMs have had the charging system upgrade enabled dating back to January of this year." So any ECM purchased since last January should not have an issue with the harness upgrade. | ||
| Dannybuell |
On the subject of the Erik Buell Racing ECMs control over the stator as posted by Anon: 'it has a higher rpm breakeven point'. Anon makes the same comment about the 2008 stator setup on his web page. http://www.EBRacing.com/shop/product140.html Translation: Erik Buell Racing ECMs don't work unless you are wringing their necks for short periods of time. F.S. barker tuned Erik Buell Racing ecm with 'IAC on'. black plug covers one small chip in plastic, noted and inspected by Erik Buell Racing with latest reflash, never down. | ||
| Blk09r |
I still don't understand how the ECU can possibly control the output of the stator except for the fact that it controls the third leg of the stator. I do remember reading a while back that Erik Buell Racing's code for controlling the third leg was identical to the stock ECU. I know I have never seen the battery light come on on my bike. I have the Erik Buell Racing generic ECU. I have seen 12.2 volts on the display in stop & go traffic in 90+ deg weather but then the third leg would kick in and the voltage would jump up to around 14v. I'd love to know what Anon meant about a higher break even point and how that's achieved. | ||
| Reepicheep |
Fewer windings on the stator, that's all. | ||
| Fresnobuell |
I put the stock ECM in and went for s short ride no battery light at all. I haven't had the stocker in for a while now, but my recollection is the battery light is on way more with the Erik Buell Racing ecm in. Doesn't hurt me too much as I don't do much city riding at all anymore, but I can see the significant problem if you are stop and go. |
