| Author | Message | ||
     Georgehitch17 |
Good morning everyone. After about 3000 miles shes toast. Checked the legs two of them were putting out 5 volts at 5k rpm one was doing right around 40 volts. I will pull it apart tonight. I think we can go one size bigger on the gauge of wire being used. I was running a consistent 13.8-14.1 at stop lights in the heat which makes me think I could turn the stator output down a notch. I will get with custom rewind today and get this paperweight shipped off. | ||
| Andros |
Shitfuk! Damn. I really appreciate you going through this misery for the team! Thank you and keep us posted! | ||
| Nuts4mc |
a site of a manufacturer of magnet wire... http://www.mwswire.com/ in that site you can choose insulation coatings based on temperature...don't know if they're compatible with engine oil...you may want to ask the rewinder (custom rewind) to call and ask some questions based on the application. back when I had hair - i worked for a custom transformer manufacture (we made autoformers a precision type of transformer) the autoformers were "potted" with epoxy from emerson and cummings...the epoxy was mixed and then subjected to a vacuum to remove the air induced due to the mixing process...air if trapped inside the epoxy would expand with heat and cause the potting to crack and cause a short...maybe some of the EEs may wish to chime in on epoxy vs varnish in this application...either way heat is the enemy - due to it's proximity with the internal combustion engine? or the generation of electricity? ..if it's the generation of electricity possibly a quality wire with the correct insulation may solve the problem....just my $.02 | ||
| J2blue |
Ron, that is a very interesting source. I remember back in my youthful audiophile days looking at a pair of speakers that used edge-wound copper voice coils. This company produces square and rectangular magnet wire! Anyhoo, I hope some of our EE members might be able to come up with some calculations for various winding configurations and the expected power output of each. I'm thinking if we can just rewind with a few less turns or something and reduce the overall output the problem could be solved. But I really don't know. | ||
| Dktechguy112 |
Any body know the number of windings on the 08 stator? We should compare 08 to 09 and put the number of windings somewhere in the middle, but leaning toward the 08's I am studying EE @ Cal Poly, I can ask around, maybe a professor that specializes in magnetics can answer this. | ||
| Dannybuell |
Dktechguy112 - search using google at top of page for 'stator posplayr' posplayr is an EE and gone into quite some detail on this subject here and at Aprilia(?) forums. | ||
| Froggy |
The 2008 stator has 18 windings. | ||
| Sparky |
Dkguy, it's not that simple. The 08 has 18 poles vs 12 for the 09 and different sized magnets for an output of approx 400 watts for the 08 and 500 more or less for the 09, but both are 3 phase, not that that makes any real difference. Ideally, since we know that a 400 watt system lives without burning up significantly, the goal to redesign an 09 stator would be, I'm thinking, to size the number and type of windings so that the system does not produce more than 400 watts. The catch is how many turns for each pole and what gauge wire will result in approx 400 watts at the spec rpms. That is the question that several enterprising owners are reluctantly beta-testing to find the right answers with the rewinders. Anything you can learn from the professors could help our understanding of what might work better than what H-D is giving us. | ||
| Rt_performance |
Grumbles...........Thanks Goerge. between this and my three friends the have 1125's with mystery can't stay running i consider trading this bike in more everyday. Planning another big trip toward the middle of next month. | ||
| Georgehitch17 |
RT I'm with you on trading up! The bike just doesnt have the necessary support to be a daily driver. I've owned three the others were 2008 When I saw white I jumped all over and now Im sitting here think WTF did I buy a 2009 for!!!! But I've cooled down I don't think my baby is going anywhere. But she might be getting a new stablemate!!!  With time Im confident this issue will be fixed! | ||
| Bextreme04 |
I daily drive my 09'R and the only problems I've had were easily fixed. I had the system voltage problem with the voltage regulator so i swapped it out with an FH0012A. Now my voltage stays at 14v even when idling with both fans on and the 35w HID headlights. Plus I'm in the desert of southern california where the temps are almost always above 100 degrees. Yesterday I noticed my voltage dropping towards the high 11's and even above 5,000 rpm it wouldn't go above 12.7v. Did some troubleshooting and found the stator outputting around 20vac at all three phases at idle. Tested the harness relay and everything tested out ok. Plugged it back in and rode it down to the autoparts store and it was back to charging at 14v. Shut it off at the store and started it back up and it was back to the 12's. So I decided that the heat must have damaged the relay and it was only intermittently engaging the relay even though you could hear it clicking. So i went into the auto parts store and bought a good quality bosch relay and plugged it in. Now it charges between 13.8 and 14.2v all the time. | ||
| Buellhusker |
I have come into possesion of a 09 burned out stator and I intend to have it rewound. What is the latest information on having the stator rewound? | ||
| Rt_performance |
call custom rewind talk to gary and cross fingers. I been trying to get my hands on a burned one but no luck | ||
| Dannybuell |
Buellhusker - There are 2 camps at this time. Epoxy and varnish. Some think epoxies keep heat in. The OEM HD stators use varnish. Custom Rewind uses epoxies and RM Stator uses varnish. Larger wire (lower guage number) and reducing output is the current strategy. | ||
| Buellhusker |
Custom Rewind uses epoxies and RM Stator uses varnish. Larger wire (lower guage number) and reducing output is the current strategy. Who has had this done on their stator? And what voltage does it produce? And how many miles since installing in their bike? | ||
| Reepicheep |
Sounds like the best option. We know the lower wattage stators were lasting, and that when they changed, the stators started baking. Revised cooling flow might be able to keep the higher power and also keep from burning stators, but thats a more invasive change. And conveniently, everyone who has a burned up stator, has to get a rewound stator anyway... so that feels like the more elegant fix. | ||
| Dannybuell |
Buellhusker - At the top of the page there is a google search function. search on; custom rewind, rm stator, varnish, epoxy.... | ||
| Fastphil |
RM Stator, lower output, CF 605 SB RR. 8600km 14.4 volts no fans, 14.2 volts both fans 3000 plus rpm. Will slowly drop to 12.2 at long idle when hot but comes up to 13.4 volts at 2000 rpm | ||
| Stimbrell |
This bike is fatally flawed, many will hope that their bike will not fail but it will, stator will fail, live with it. HD are screwing us. I am sure I will be told I am a idiot or worse. go figure. | ||
| Jules |
It's not "fatal", it's just bloody annoying. but I don't understand what the point of your post is other than to get it off your chest again.. If that's all then I'd say job done. | ||
| Stimbrell |
Yes, good point, getting it off my chest is really what I am doing here, so sod it, I need to accept that I have purchased a complete piece of shit and move on, Ducati next I think. I just so wanted this bike to be good. | ||
| Tbowdre |
I wanted the 1125R to be perfect as well. it is not. It is however damn good. Grenade proof engine. solid suspension, turning geometry, outstanding performance, comfort, sound, looks,.... most is really good. I find the charing system to be annoying at best, well, now that I know what to expect. like all things in life.... nothing is perfect. have you checked out the ducati forums? ahhh, isuues abound to be sure I am just venting as well todd | ||
| Dannybuell |
Strimbell lets us know how those Ducati $6,000 service bills work for you. | ||
| Brumbear |
Well I took out the harness today and the voltage jumped from 12.3/2/1/ to 13.1 to 14.2 so I will see how long it lasts without the "fix" | ||
| Brumbear |
just a shot in the dark hear but what would happen if you skipped one pole? I mean wound only 17 poles? | ||
| J2blue |
Brumbear, if one pole on a 3 phase system is skipped you will get a power dip in the output at a frequency that may or may not be "harmful" to the ignition system. You can try reducing by one the number of windings on each pole, which some of us are very interested in, but few of us have the spare stator and cash to experiment with. | ||
| Reducati |
i removed my harness about 1000 miles ago, im on my original stator.(9.5 k total) i figure with the cooler temps it would be good...and my warranty expires in about 30 days...it feels like she runs better, with the volts never getting lower than 13.8 or so...we will see said the blind man who couldnt see. | ||
| Rt_performance |
tbowdre Not sure about the Gernade proof. I personally know of 3 that have dropped valves and as bad as mine rattles it freaks me out. considering the 2010 timing chain follower and valve springs this winter as permentive maintance | ||
| Tbowdre |
oh fine. I still think 1125R is a pretty solid vehicle though | ||
| Rt_performance |
I agree t and love this bike otherwise i would have dumped it long ago. |
