Xr250lc

Discussion in 'Some Assembly Required' started by fiep, Aug 31, 2011.

  1. fiep

    fiep Long timer

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    no relay, so far only a couple 100 miles with the light
    but
    why would the LED fry my regulator?
    yes, I admitt being electrically very little knowledgeable
    but willing to try and learn
    #61
  2. Tanshanomi

    Tanshanomi Your Favorite Uncle Supporter

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    Doesn't your DMV require a DOT high and low beam?
    #62
  3. fiep

    fiep Long timer

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    I do?
    #63
  4. NortwestRider

    NortwestRider TRIPOD ADVENTURER !!

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    I had 3 LED lights on my Vstrom and i had charging problems.I put in a mosfet RR and it didn't help. I replaced the stator and it didn't help. I tested the new RR and it was fried ( worked good when I got it ). I finally talked to electrical engineer and he told me that without relays the LED's use so little power that they put power to ground( which is what EVERYBODY said was happening but could not figure out how ). I took off the LED's and put the stock RR back on and so far NO charging problems!!
    #64
  5. torgo

    torgo Adventurer

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    Great build, just found the thread and read the entire thing.

    Regulators on most bikes are just shunts (short circuits) to ground and that is how they regulate the voltage. That is why they have fins to keep them cool. If you reduce the electrical load by replacing all your lights with low wattage LED's then the Regulator has to conduct more current to ground and that heats it up more. If the cooling fins can't disapate the heat then it burns up.

    Keep up the good work. :clap:clap:clap:clap
    #65
  6. pennswoodsed

    pennswoodsed lizards,bugs and me

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    Nice build,lurkers appreciate things even in an empty theater !

    Aren't there r/r setups that don't shunt excess to ground ? wasteful and costs power !
    #66
  7. Mollygrubber

    Mollygrubber Eschew obfuscation

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    Inspirational work on my kind of budget! Nicely done, you make it look easy. :clap
    #67
  8. fiep

    fiep Long timer

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    so far bike runs, light works, except for one time, when one of the stock plugs on the dimmer unplugged itself

    in the meantime:
    [​IMG]

    blasted, found and oldered shut
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    the lil' black boch next to the chocke is a dimmer,
    thanks Shean-O and Veho :bow
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    if nothing else she is a great conversation starter

    oh one more picture:
    a little OK, a lot blurry, but my #$%@ camera would not focus on the tire
    [​IMG]

    after the first ride in the mountains
    the stupid knobs bent so far they wear on the inside
    ordered a set of Duros 903/904
    Cycle Gear had the rear on backorder for weeks now
    as soon as I have both Else will get the more streetworthy Duros and the Kendas go on my next project, an 86 XR250

    OK, one last piece of information
    finally got around to put her on my bathroom scales
    back 66
    front 60
    in Kg with a full tank of gas
    not a slimline, but bearable
    #68
  9. DC950

    DC950 Microadventurer

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    excellent. Thanks for writing all this up.
    #69
  10. 1Bonehead

    1Bonehead Fearless of Falling

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    Where did you get the headlight? Dimmer?
    #70
  11. fiep

    fiep Long timer

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    headlight ebay.de
    dimmer Amazon.com
    #71
  12. fiep

    fiep Long timer

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    once again I changed my mind about what I want my XR250LC to look like,
    got to be slimmer, trimmer ...
    so out with the big ... my Euro-import has to go

    up for sale is my LED headlight
    here: http://www.advrider.com/forums/showthread.php?t=751496

    already have the next edition, more modern look
    the headlight with a smile
    #72
  13. malokam

    malokam Been here awhile

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    :lurk

    I saw the ad in the flea market. But I am curious as of which one you are replacing it with.. Any pics of the replacement setup?
    #73
  14. Tukata

    Tukata ADV Demo Rider

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    Sanjoh ( if you can ever get him to answer a pm,email :evil) makes some killer LED lights.

    Plus he test them to survive real world abuse, I mean use
    #74
  15. fiep

    fiep Long timer

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    no offence, but Sanjoh makes auxilliary lights
    I even have some from him
    but that is not my plan

    I am thinking this headlight and an XR-off-road taillight,
    smallish LED turn signals ...
    [​IMG]
    #75
  16. sanjoh

    sanjoh Purveyor of Light Super Supporter

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    Polisport LED sounds good and probably works fine for daytime rding.

    This is about go on my Husky for some abuse. 3000 lumens in this configuration, includes dimming capability for low beam, full power on high beam. Oh and it only pulls 20watts on full power. DC only for now.
    [​IMG]
    #76
  17. fiep

    fiep Long timer

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    I reserve the right to be bitchy

    #1 beauty is in the eye of the beholder

    #2 if you want to show your prototype fine,
    please start your own fred
    obviously not for sale on your page
    my bike is not a Husty
    and
    my bike will get a smiling face

    deal?
    thank you
    #77
  18. sanjoh

    sanjoh Purveyor of Light Super Supporter

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    It's working:D

    Didn't say anything about sale etc. I'm a motorcyclist that likes to ride his plated dirtbike at night, I need a lighting solution that enables me to see.

    Seems you might have the same need?

    I'd really like to hear more about why you took the led headlight off your bike:ear Is it just the "look"? I doubt you will find anything that is slimmer or trimmer than the stock setup, although it certainly doesn't have a smile:D

    Happy New Year:freaky
    #78
  19. fiep

    fiep Long timer

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    :rofl
    what stock setup :rofl

    you can sure come up with something trimmer than NX250, can you?
    how about XR250L? pretty sure you can
    stock XR250R is kinda trim but at the same time awfully dim

    no, I don't care much about seeing at night
    this bike is a toy not a commuter
    the Dakar has Solistes, the Tiger has Solistes,
    Elsie just needs to be seen

    as I said: beauty is in the eye of the beholder :freaky
    #79