Yellow Stator Wires
Printed From: rsvr.net Forums
Category: RSV / RSVR / FACTORY
Forum Name: Technical Chat
Forum Description: Any technical problems or useful advise for other owners, remember this is just advice posted here, if you make something go BANG in a big way don't take anyone to court about it.
URL: http://www.rsvr.net/forum_posts.asp?TID=5261
Printed Date: 27 Mar 2026 at 03:07
Software Version: Web Wiz Forums 12.07 - https://www.webwizforums.com
Topic: Yellow Stator Wires
Posted By: TomskiY
Subject: Yellow Stator Wires
Date Posted: 27 Jun 2010 at 08:31
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Hi guys, Cheers Tom. |
Replies:
Posted By: joe 90
Date Posted: 27 Jun 2010 at 09:52
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heat from engine.. ------------- www.spoonztuning.co.uk I Luv Ducati's Discount Ducati breakdown cover call joe 0800 998 999 |
Posted By: tapmyhed
Date Posted: 27 Jun 2010 at 17:01
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Actually, heat from the stator. the stator works at 100% from the start due to the design of the reg/rec. Its a cheap solution for mass market that a lot of manufactures have used, called a 'shunt' type regulator. What is not used by ancilliaries such as charging, lights etc, is shunted to earth which generates a lot of heat at the rectifier.
The stator is rated at 500 Watts, so is effectively generating 500W of heat energy by creating current that effectively gets shunted to earth. There are other 'design' issues with the fixed magnet flywheel and also the windings of the stator, but ultimately, from the stator through to the heat sink on the RR will get hot.
There are modifications that you can make, however, you would have to consider how many miles/year you do and whether your going to keep it long term....if its short term ownership only used occasionally, then its probably not worth doing as stators can last over 20K miles.
Just sort out your wiring, ensure the connectors are clean and VERY secure (tight) and possibly re-route the stator cable (3 yellows) along the front of the engine along the top of the rads, not between the V's.
There are a couple of posts regarding 'series' regulators using MOSFET technology, its a kind of recognition that shunt types are crap and have blighted many manufacturers, not just aprilia. the is enough info in the post for you to make up your mind about this!
If you want more info, PM me or BB1000, as we both went down the path of change!
:-) ------------- Factory 04 Big Bore Whore |
Posted By: BB1000
Date Posted: 27 Jun 2010 at 17:33
What he said 
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Posted By: Richard H
Date Posted: 08 Jul 2010 at 11:14
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At the time I didn't realize there were two Brown Connectors. I read a lot on this forum and had a look for the offending item with the fairing off...Oops! Wasn't too difficult to repair, just the fact that you don't have a lot of wire lenght to play with. A bit fiddly. |
Posted By: tapmyhed
Date Posted: 08 Jul 2010 at 15:40
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Yup, crap design, connectors crap as well, spring pressure on contacts crap too, all a burnt stator waiting to happen sadly.
Your on the path to sorting it out though! ------------- Factory 04 Big Bore Whore |