Wife's '09 F650GS keeps blowing headlight bulbs... ?

Discussion in 'Parallel Universe' started by Mollygrubber, Oct 8, 2014.

  1. Mollygrubber

    Mollygrubber Eschew obfuscation

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    Need your advice here, electrical geniuses... Mrs Mollygrubber's '09 650 keeps blowing headlight bulbs, both high and low beams, but the little front running light is still OK. She says her digital display intermittently goes blank too, when she stops in traffic (?).

    I'm not that electrically savvy, I can add lights and run wiring etc., but the vagaries of CANBUS systems is a little beyond me. Are these issues related, or a computer issue, or is it more likely a simple short? I haven't torn into it yet, didn't have the heart after just dropping multiple thousands on her car :lol3.

    Any pre-emptive advice appreciated, thanks!
    #1
  2. Bollocks

    Bollocks Farts with an Accent™

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    They all do that, it's called a feature.
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  3. Reaver

    Reaver Why am I still here?

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    When's the last time you cleaned and tightened the battery connections?

    How old is the battery?
    #3
  4. Mollygrubber

    Mollygrubber Eschew obfuscation

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    Hmm. That's a good point. Original battery, and all these shenanigans started right after I installed her GPS. I know I snugged down the connections (twice - I checked that first, and removed the GPS for good measure), but I didn't consider the state of the battery, because she really doesn't ride all that much. I guess a lightly used 5 year old battery is still a 5 year old battery :lol3. OK, I'm a dumbass. I'll get it replaced.
    #4
  5. Reaver

    Reaver Why am I still here?

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    #5
  6. Mollygrubber

    Mollygrubber Eschew obfuscation

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    Thanks man, you're a sweetheart :freaky
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  7. Dorito

    Dorito Dreamer and Doer

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    Mine ate bulbs for the first 50K miles. Like one every 7-9K miles. I attributed it to off-road riding. However, it's been a good streak...about 12K on this bulb !
    #7
  8. ibgary

    ibgary Long timer

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    That sounds strange. 7 bikes and over 200k miles and only 1 headlight.

    Sent from my HTC One_M8 using Tapatalk
    #8
  9. malloy

    malloy Long timer Super Supporter

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    #9
  10. vtbob

    vtbob wanderer

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    FWIW

    Get the output of your Rectifier/Regulator. Simple volt meter check. Vary the RPM of the engine.

    I don't know the specific specs...but some one on this site does.

    I believe the charging voltage is approx 14.5 volts.....I believe much higher than that could be a problem..

    Also chech the ground side of the RR to see if it too is a good reliable connection.
    #10
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  11. Glenn247

    Glenn247 Long timer Supporter

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    Another twin eating headlight bulbs. Just had another one burn out so that makes two in 21k miles

    So can someone suggest a better bulb and where to purchase from online?

    Thanks
    #11
  12. runnr548

    runnr548 BMW Pilot

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    Regulator/rectifier issue is the most likely problem.
    #12
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  13. CheckerdD

    CheckerdD Long timer

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    my 1200 used to blow a bulb a year. Big deal.
    #13
  14. charliektm400exc

    charliektm400exc Been here awhile

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    #14
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  15. Daryloftexas

    Daryloftexas Been here awhile

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    take a real good look at the connector for the headlight. ive had my 800 for about 13,000 miles and had one bulb go out, was the stock bulb and bike was at 21,000. also make sure the rubber boots where the headlight is mounted are still in good shape/ bolts tight and all that.
    #15
  16. zap2504

    zap2504 Dave E.

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    Aug 2017 edition of Motorcycle Consumer News. Go to page 6, Downtime. There is a discussion on electrical issues, particularly about headlight bulbs blowing out. Discussion revolves around the "halogen cycle" that helps bulb filaments last longer but provides no protection from burning out if bulb voltage drops to 70-80 percent of rated voltage (like 10.2VDC). Maybe check voltage at the bulb? Article also mentions vibrations but the suggestion was to check voltages first.
    #16
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  17. Woody2627

    Woody2627 Grey Wobbler

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    I fitted my 4th this morning, at 60k. Lights don't last forever.
    #17
  18. ChicoProf

    ChicoProf Been here awhile

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    I've replaced two headlights on my F700 across 3+ years and 18,000 miles. Doesn't seem like a big deal to me at $7 a bulb off amazon. I usually keep a spare, or if I don't have my tank bag, I swap the high beam into the low socket til home.
    #18
  19. SubAtomicGenius

    SubAtomicGenius Moto Villian

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    Was

    Was going to mention vibration as well, may also be worthwhile for to check out the torque on the headlight adjustment bolts.

    How do you find the LEDs from Cyclops, no worries about those vibrating and burning out!
    #19
  20. nickgindy

    nickgindy KLR Basher

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    Glad I'm not the only one. My bike is at 48k and has burnt a headlight bulb every 7-8k as well. Last night I just noticed this. This upsets me even more. [​IMG]

    Sent from my XT1585 using Tapatalk
    #20