Lights Question !!!!!

Discussion in 'The Workshop' started by PDBV, Jan 8, 2014.

  1. PDBV

    PDBV Member

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    136
    This may sound stupid and i apologise in advance :)

    How are the lights on an nrg mc2/3 powered ?

    Are the fed from the battery or from the scoot equivelant on an alternator (im only familiar with car terminology)

    I only ask because the light on my scoot are realy realy dim, so i hooked them up to the battery directly and they work fine.

    The scoot is an 02 plate and has been stood for about 4 years so i am just wondering if its that or weather the wiring is fooked or if its something else ?

    Would there be a problem if i was to wire them up to the battery?

    Cheers for any help

    Pete
     
  2. PDBV

    PDBV Member

    Messages:
    136
    So if they are fed from the stator (i assume this is the equiv of var alternator) would that mean i have a problem with the stator its self ?

    The battery seems to charge fine ?
     
  3. PDBV

    PDBV Member

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    136
    No they dont really,
     
  4. PDBV

    PDBV Member

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    136
    So there is no problem with wiring direct to the battery then? (Obviously through switch and fuse)

    Last question

    What amp fuse should i use ?
     
  5. PDBV

    PDBV Member

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    136
    No i havent is that worth looking into (big job?)
     
  6. PDBV

    PDBV Member

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    136
    Thanks ill look into that, but from looking at the description that does the indicators as well but they work fine as does the rear light ?
     
  7. Stevep

    Stevep Well-Known Member

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    5,898
    When the bike idles, does the rear light "pulse?" (rear light only, not headlight)
    When you increase the revs does it become brighter?

    Check the voltage at the battery terminals. Should be about 13.6v with the engine running at about 2000rpm.
    If not check stator wiring. Test resistance across the connections and copper coils.

    If you don't have sufficient power coming up to the battery, then wiring the lights direct to it, via a switch or otherwise will drain it and then you'll be stuck.
     
  8. PDBV

    PDBV Member

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    136
    The rear light is constan and doesn't pulse none of them do there all nice and bright constantly except for the front lights witch are dim but they dont pulse either their just dim
     
  9. PDBV

    PDBV Member

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    136
    Sweet cheers guys will do some testing tomorrow :)
     
  10. PDBV

    PDBV Member

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    Well after re wiring the front lights to get it through the mot (passed easily) i have ordered a new stator and rectifier, because i have noticed that it is not charging the battery and i didnt know witch one it would be so just ordered both, so i will update when i have fitted them (will fit them one at a time then try each one so i can figure out witch one it is)
     
  11. PDBV

    PDBV Member

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    136
    Yeah i was thinking that, its less work lol what involved with changing the stator ?
     
  12. turbovetto

    turbovetto Well-Known Member

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    tweaked ovetto
    Hi
    if the engine is running well then either the regulator is on the way out - or more likely - you have a duff switch/connection somewhere. Get the front off it at start at the lights & work back.
    Good luck - electrics are a P.I.A.
     
  13. Merlin

    Merlin Old School Biker

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    2,305
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    2007 TKR WRC 50
    It may be poor earthing on the lights - they rely on the earth wire and if the earth is iffy then the lights go dim.
     
  14. PDBV

    PDBV Member

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    136
    Its the supply to the light switch that if faulty, at the minute i have replaced the feed to the lights from the rectifier with a feed straight from the battery,

    Now, with the lights off i get some charge in the battery, but with the lights on theres not enough and the battery gets drained, so i assume that this would be a problem with either the rectifier or the stator ?
     
  15. turbovetto

    turbovetto Well-Known Member

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    tweaked ovetto
    connections first, other stuff later. Why would the rear light work well and not the front otherwise?
     
  16. Merlin

    Merlin Old School Biker

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    2,305
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    2007 TKR WRC 50
    Yes, that's correct. The stator could be putting out 15v DC on one circuit at full throttle that gets fed to the battery via the rectifier/regulator and 12 to 14 v AC on another circuit to feed the lights. They are separate circuits so I suspect that the stator is on it's last legs.
     
  17. turbovetto

    turbovetto Well-Known Member

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    tweaked ovetto
    and I say that unless you have ruled out all other possibilities, then you should leave it alone. All the lights run off the same supply from the stator which feeds the regulator. Since we know the rear light works, Are you seriously suggesting that he go straight in with a new stator only to discover that it's corroded connections in the front end or some such bullshit ?
    If this is a normal 50 cc scoot then the lights will run independent of the battery. Only the horn and the indicators require the battery to be connected to work.
    You were on the money with the duff earth connection I bet.
     
  18. Merlin

    Merlin Old School Biker

    Messages:
    2,305
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    2007 TKR WRC 50
    No, I did mention that he checked out the earths and connections first.

    I provided the info I had if he wanted to check the stator output before he dived in to change it. Our posts crossed and we are on the same wavelength, honest! :)
     
    turbovetto likes this.
  19. PDBV

    PDBV Member

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    136
    The head lights are a higher wattage than the rest so will show low voltage more, when i was riding it back from mot with the lights on everything was going dim, even the rev counter stopped working, turn the lights off and bat starts charging again turn lights back on all ok for 30 secs then all start to go dim again so its not generating enough power
     
  20. turbovetto

    turbovetto Well-Known Member

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    tweaked ovetto
    Ah - well that put's an entirely different complexion on the subject. Regulator first. Good luck.
     

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