F800GS R/R Mosfet replacement....How to...

Discussion in 'Parallel Universe' started by ebrabaek, Apr 13, 2012.

  1. WayneC

    WayneC Long timer

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    Well said, was not aware of the signal over power systems on the new models, shitty would be the best term I could think of for them, it has also possibly explained some aspects of ABS problems as well, I heard Shorai had problems with ABS not initialising when the smaller batteries were used on the 1200's

    All of the points raised by Joel are relevant & should be of concern if a professional approach is to be taken

    My concerns with all the series regulators are there are no specs to work with from any of the manufacturers whereas the Shindengen does put most of the specs there for all to see & they are proving reliable across many makes & models so they are a safe alternative.
    #81
  2. JRWooden

    JRWooden Long timer

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    I hosed that up... thanks for catching the error....
    #82
  3. Gangplank

    Gangplank Advenchaintourer

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    Someone is using one. See indyuimited's post in the other thread. I think he said C5! is using one with no I'll effects.

    And no worries JRWdn. Just wanted to be sure the right info was out there.

    #83
  4. ragtoplvr

    ragtoplvr Long timer

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    Normally a battery in good condition would absorb any noise. You could add a low ESR high temp electrolytic capacitor 25 Mfg, 50 V 105C or 125C next to the reg along with a couple of ceramic cap (.1 @50V) to absorb some more noise. You could find these at newark electronics.

    Rod
    #84
  5. JRWooden

    JRWooden Long timer

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    Rod:
    My knowledge of noise filters is noted for its absence :lol3
    If you look at voltage spikes on page 9 do you reckon the above would work?

    www.vfrdiscussion.com/forum/index.php?app=core&module=attach&section=attach&attach_id=8336
    #85
  6. Gangplank

    Gangplank Advenchaintourer

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    Can someone who has replaced their RR take and post a picture of the stock BMW connectors?

    I'm working on a sourced replacement that had the stock connectors for a plug and play replacement.

    Thanks in advance.
    #86
  7. ebrabaek

    ebrabaek Long timer

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    Yeppers......
    [​IMG]
    [​IMG]

    :thumb:thumb

    Erling
    #87
  8. Gangplank

    Gangplank Advenchaintourer

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    Thanks!
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  9. WayneC

    WayneC Long timer

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    The numbers on the connectors should allow you to source the genuine items from the manufacturer, Wurth is one Co who stocks many of the BMW connectors & plug/socket pins & supplies the dealer networks with non BMW electrical parts
    #89
  10. ebrabaek

    ebrabaek Long timer

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    Ding...ding.... first fitty miles after surgery.....all is well.....:D. After each shutdown of the motor.... the battery is at 13.41 volts..... I am waiting on a aluminum bracket to get in....so I can make a mounting bracket in aluminum. Local suppliers take us for idiots regarding metals.... So I had to order online. ...Until then.....:thumb:thumb

    Erling
    #90
  11. JRWooden

    JRWooden Long timer

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    Gangplank:
    If you find a source for the connectors would you mind posting it (pretty-please) ?

    I will likely take the "detuning" approach and might build a resistor bank...
    If I could get an extra male & female of the 3-lead connectors then I could easily remove the bank if I needed to get back up to the full 400W some cold winter's day :D
    #91
  12. Gangplank

    Gangplank Advenchaintourer

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    If I come accross anything I will for sure post it up. :deal
    #92
  13. WayneC

    WayneC Long timer

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    If anyone cares to post ALL the numbers from the connectors I can cross check the Wurth catalogue & another I have access to to ID the connector source for you

    A couple of pic's would assist as well
    #93
  14. mapuda

    mapuda Crash Tested

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    I posted this in the Alternator thread but want to replace the regulator now too.

    So....

    About 4k miles ago or Feb. 12 to be precise, I replaced my BMW stator with an Electrosport Stator. Life was good. I have a voltage monitor from Twisted Throttle; RED - less than 11.5 volts, AMBER - 11.9 to 11.5 volts, and GREEN - 12 volts +.

    When I first installed the Electrosport I would get Green at idle. Last couple of mornings on start up I would have a Red light until the rpm's were above about 2500. Today riding home from work at 75mph ~ 5K I had a flashing Red which I take to mean zero stator output.

    Tomorrow I will test the stator as listed in other threads. I am hugely bummed.

    I have not yet had the OEM stator re-wound. Does anyone have any recommendations? I live in Las Vegas, NV.

    I read about someone who replaced 3-4 stators (re-wound) in fairly rapid succession. Is it possible that the cause of the Stator failure is the Regulator? I got about 4k miles on a new Electrosport. I will test tomorrow but I imagine that one of the windings has opened or shorted.
    #94
  15. ebrabaek

    ebrabaek Long timer

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    When Joel offers advice I listen carefully...... His take was....few R/R' were faulty....if any.... But as he mentioned...the Stock stator is build....should we just say with better component's.... including the insulating...than the aftermarket units. But as we are now learning and testing here.....the R/R....although not failing.... it is not a good one...and perhaps should be replaced... Not with a stock one... But with a mosfet from a known good source....Or as one member here soon will tell how his series R/R will perform. So far my beta testing on the mosfet is good.... At least on the battery side.... No clue what if any effect it has on the stator. Theoretically.... it should cool it a bit.....:thumb:thumb

    Erling
    #95
  16. ebrabaek

    ebrabaek Long timer

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    Rode a friends bike today.... There is no doubt the stock R/R runs hotter..... By far than my mosfet. After a 15 minute freeway run at 60 mph.... right after a 1 minute idle..... I just about burned my hand touching his R/R... at any time.... My mosfet has just been warm to the touch.....:thumb:thumb

    Erling
    #96
  17. WayneC

    WayneC Long timer

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    The connectors appear to be made by a German Co called Kostal. From talking to another US rider it seems purchase
    of Kostal product needs to be done via an EU distributor, the US distributor was unable to supply another Kostal plug
    he was attempting to source
    #97
  18. lawe

    lawe lawe

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    So it would be ok to stuff it away somewhere then?

    (Sent from my Xperia through Tapatalk 2)
    #98
  19. ebrabaek

    ebrabaek Long timer

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    I think it depends on what unit you get. The mosfet I got runs cooler by far, but I was told by the importer that that unit is capable of upward of 70 amps....but rated at less..... So they have done a lot of testing. That is perhaps not to say that all mosfets are like such. I thought about putting mine where the Charcoal canister one sat.... but understand that electronics works best...and last the longest when they are cooled. Thus the best place is....where it was from the factory. The series need to be in the airstream...preferably in the front ahead of the motor, as it generates a lot more heat. How far were you thinking to hide it???? Hej-hej...
    :thumb:thumb
    Erling
    #99
  20. ebrabaek

    ebrabaek Long timer

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    Just in case anyone have missed it... All the testing I have done is in the desert southwest US. where temps are high. We have had ninty's (F) or well into the 35's C... With the direst sun being very hard on stuff...... :thumb:thumb

    Erling