950 se voltage rectifier/regulator

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by gmtcm, May 17, 2013.

  1. gmtcm

    gmtcm KTM RIDER

    Joined:
    Aug 16, 2005
    Oddometer:
    317
    Location:
    ALBUQUERQUE, NM
    My friend recently had a voltage rectifier/regulator go bad on his 950 SE. It also took the battery with it. He has since moved the unit away from the rear cylinder exhaust pipe so it doesn't succomb to heat of the pipe. How many of you SE owners have experienced this? I have 20K miles on mine, and worry about a failure out in the middle of nowhere. Any recommendations would be appreciated.

    Thanks - gmtcm
    #1
  2. brents347

    brents347 Trusting my Cape...

    Joined:
    Mar 5, 2006
    Oddometer:
    3,936
    Location:
    Where the hell is Truckee, CA?
    Not me, but MANY others. 20k seems to be alot, that is where I'm at as well. Move it now, an cross your fingers?

    You could move the regulator, switch it for a new one and keep the old as a spare. At least that way you don't cook a battery.
    #2
  3. Volke

    Volke Adventurer

    Joined:
    Mar 14, 2006
    Oddometer:
    10
    Location:
    Ontario
    My VRR went at 3950km's. It took the battery with it.

    I bought a Rick's Motorsports VRR and a new battery, and so far with ~2100km on them, it's working.
    #3
  4. triplenickel

    triplenickel Long timer

    Joined:
    Jul 9, 2008
    Oddometer:
    2,430
    Location:
    Campbell River, BC. Fantasy Island
    I swapped my good working one proactively at 60k, I'll get around to moving the new unit one of these days.
    #4
  5. gmtcm

    gmtcm KTM RIDER

    Joined:
    Aug 16, 2005
    Oddometer:
    317
    Location:
    ALBUQUERQUE, NM
    What happens is there is no early warning that it has taken out the battery, until the bike quits. By then it's too late. I guess I could install a voltmeter on the dash, but would probably never watch it and it would still go out.
    #5
  6. randel

    randel Been here awhile

    Joined:
    Jan 25, 2006
    Oddometer:
    318
    Location:
    Mattighofen
    My regulator went at 47000km. Surprisingly I still have working original battery, 5 years old. New regulator is relocated to left side of frame, I also installed voltmeter.
    #6
  7. Peanuts

    Peanuts Long timer

    Joined:
    Sep 12, 2009
    Oddometer:
    1,747
    Location:
    Beautiful but often rainy North Yorkshire, UK
    You may hear the battery whistling after you turn off the ignition. That is the sound of gas escaping because it is boiling up inside. Catch it early enough and the battery will survive.
    #7
  8. Xmoto

    Xmoto Death Race

    Joined:
    May 14, 2010
    Oddometer:
    2,107
    Location:
    Schodack,NY
    My VRR went at 7000 miles and also took the battery with it. I replaced it with a Rick's Motorsports VRR . I had a strong sulfur smell coming from the battey as it was venting from the seems.

    [​IMG]
    #8
  9. ststrider

    ststrider some guy on a bike

    Joined:
    Jun 4, 2007
    Oddometer:
    423
    Location:
    kingston ont canada
    my regulator went at 32000km and took the stator with it.
    #9
  10. gmtcm

    gmtcm KTM RIDER

    Joined:
    Aug 16, 2005
    Oddometer:
    317
    Location:
    ALBUQUERQUE, NM
    I didn't think there was much room on the left side of the frame to re-locate the VRR? Could you send me a photo of yours>

    Thanks - gmtcm
    #10
  11. dzrtracin

    dzrtracin ride'n 2 live

    Joined:
    Sep 28, 2004
    Oddometer:
    2,868
    Location:
    the garage
    Did Rick as well, 17k on the original RR & NO issues, just a precautionary measure. I kept the original mounting position as well. I figured since the original never failed from excessive heat, why on earth would the mosfet RR fail, just jinxed myself:lol3

    RIDE ON!
    #11
  12. charlie264

    charlie264 Long timer

    Joined:
    Oct 27, 2007
    Oddometer:
    8,591
    Location:
    Blighty
    07 SE, same battery, same R/R.....same location.
    #12
  13. dogsslober

    dogsslober No neck tie, Ti neck

    Joined:
    Feb 10, 2009
    Oddometer:
    1,101
    Location:
    Morgan Hill Ca
    Getting close to 30,000 miles with Original VRR in stock location. Will prob buy a mosfet to replace sooner or later.
    #13
  14. Two Moto Kiwis

    Two Moto Kiwis Homeless Somewhere

    Joined:
    Apr 12, 2007
    Oddometer:
    4,082
    Location:
    Wanaka, New Zealand, Currently RTWing
    Heya gmtcm

    Ours didn't fizz out but we proactively relocated it away from the oven.

    There is plenty of wire to bring it around to the left hand side, see toward th back of the tank and yoiu can use the same mounting plate as well.

    [​IMG]
    #14
  15. traveltoad

    traveltoad Aaron S

    Joined:
    May 8, 2002
    Oddometer:
    6,766
    Location:
    San Fernando Valley
    Is the MOSFET Reg/Rec also sensitive to heat? Or could a MOSFET be left in the original location?
    #15
  16. Afry

    Afry Why hike?

    Joined:
    Aug 8, 2011
    Oddometer:
    635
    Location:
    Ramona, Ca
    My Rick's failed (no charge) in a few months with about 1500 miles on it (stock location) with single exhaust. I put the stock working unit back on while they replace it. They claim it is the first failure of one of these. Now I lost the confidence I thought I bought.
    #16
  17. gmtcm

    gmtcm KTM RIDER

    Joined:
    Aug 16, 2005
    Oddometer:
    317
    Location:
    ALBUQUERQUE, NM
    I am sorry to hear about the Rick's failure. Before I committed on one, I was going to call them and ask them why theirs is better than stock. Now I don't know what to do. I just put in a new YUASA battery that I don't want to fry. I have been riding KTM motorcycles of all sizes since 1997, and the new ones just don't seem as reliable as the older models.
    #17
  18. SE Steve

    SE Steve Super Noob

    Joined:
    May 18, 2011
    Oddometer:
    274
    Location:
    So Cal
    My SE has 7000 miles on it.
    I'm on battery #4 and i just figured out my Voltage regulator is letting 17+ volts through.
    I checked it out a while back and it was only putting out 14v but the bike was cold and i only kept it running for a few minutes. .
    Today I ran the bike for a lot longer and gave it different throttle settings as the bike got hotter the voltage kept going up.

    So what is the best replacement?
    #18
  19. GoNOW

    GoNOW Long timer

    Joined:
    Feb 22, 2006
    Oddometer:
    1,588
    #19
  20. LAKEMONSTER

    LAKEMONSTER Adventurer

    Joined:
    Oct 28, 2010
    Oddometer:
    37
    Location:
    KELOWNA B.C.
    http://motoventure.smugmug.com/Other/950-Superenduro-Regulator/29508862_C3CDQq/
    NiceName: ? Yes, my VRR quit, and took out my Battery also, four days before the KTM rally in Oregon last year. After getting a new Reg overnight shipped, AND a new Battery, i did make it, but a day late? Not wanting this to repeat itself, i starting playing with Machining a Heat Sink, (minimal reduction in Heat) and then Testing with an Infra-Red gun, experimenting with different locations, until i found the Coooooolest? Upper Mount down to 102 Degrees, and Lower Mount down to 112 degrees from a Smoking hot 175 plus where it sits between the Headers...
    #20