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Batteryless xs650 capacitor fell off during ride

Discussion in 'The Garage' started by Anthony1993, Jul 20, 2019.

  1. Anthony1993

    Anthony1993 XS650 Enthusiast

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    jim.. awesome video!
    just did each test he did
    not sure what i did wrong the first time, but this is what i got

    black probe to red wire red probe to yellows
    1/.480
    2/.487
    3/.503

    red probe to red wire black probe to yellows
    1/OL
    2/OL
    3/OL

    black probe to black wire red probe to yellows
    1/OL
    2/OL
    3/OL

    red probe to black wire black probe to yellows
    1/OL
    2/OL
    3/OL

    black probe to red wire red probe to yellows ( on 2M ohms setting)
    1/1.079
    2/1.677
    3/1.180

    red probe to black wire black probe to yellows ( on 2M ohms setting )
    1/OL
    2/OL
    3/OL

    as far as i can tell all the numbers are suppose to be in range of each other, but i dont have enough knowledge to declare if its bad or good. what do you guys think?
     
  2. Anthony1993

    Anthony1993 XS650 Enthusiast

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    when i hook the battery up to the bike, should i give it a kick and see what happens?
    and what will i be looking for?
    would it just be a means of supplying power to the bike so i can do further test?
     
  3. Anthony1993

    Anthony1993 XS650 Enthusiast

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    i was just looking over my list and i think i skipped a test. im going to double check all my test and report back with more numbers.
     
  4. 650Skull

    650Skull Dinosaur Lives Top Contributor

    Having no on/off switch or fuses is a problem, when hooking up a battery, the whole loom will be alive from the get go...........i just made the suggestion about the battery so there was no confusion about how to, in case the car was running to keep the battery charged.

    I don't think running power through the loom is necessary to check anything............This can be done when the bike is started and then power voltage reading can be checked.

    Sorry i didn't mean to side track.........just a precaution
     
  5. Anthony1993

    Anthony1993 XS650 Enthusiast

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    ok triple checked all numbers and contacts to make sure its reading and this is what im getting from the rectifier

    black probe to red wire red probe to yellows ( on diode/ continuity)
    1/.478
    2/.485
    3/.502

    red probe to red wire black probe to yellows ( on diode/ continuity)
    1/OL
    2/OL
    3/OL

    black probe to black wire red probe to yellows ( on diode/ continuity)
    1/OL
    2/OL
    3/OL

    red probe to black wire black probe to yellows ( on diode/ continuity)
    1/OL
    2/OL
    3/OL

    black probe to red wire red probe to yellows ( on 2M ohm setting)
    1/ 1.683
    2/ 1.178
    3/ 1.044

    red probe to black wire black probe to yellows ( on 2M ohm setting)
    1/OL
    2/OL
    3/OL

    black probe to black wire red probe to yellows ( on 2M ohm setting)
    1/OL
    2/OL
    3/OL

    red probe to red wire black probe to yellows ( on 2M ohm setting )
    1/OL
    2/OL
    3/OL
     
    Jim likes this.
  6. Jim

    Jim People will come Ray, people will definately come. Top Contributor XS650.com Supporter

    Yeah... that's no good. You're missing half your bridge.
    ...And just for your info, you said... "black probe to red wire red probe to yellows ( on diode/ continuity)." On the diode function, you're not checking continuity, you're looking at voltage drop across the diode. The number .502 for example means you're losing a half a volt... it has nothing to do with resistance/continuity.
     
    TwoManyXS1Bs likes this.
  7. Anthony1993

    Anthony1993 XS650 Enthusiast

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    thanks for the info that makes sense. the only reason i put that is because on my multimeter the instructions say to check the continuity with a specific setting and then the intructions for checking diode says to put it on that very same setting.
     
    Jim likes this.
  8. Jim

    Jim People will come Ray, people will definately come. Top Contributor XS650.com Supporter

    Yeah, I've seen that before too. I've also seen meters where the diode function was included inside the resistance scales. Only thing I can figure is the Chinese are copying stuff without understanding exactly what they're copying. :doh: If you look at your readout, when you switch to "diode", a V should pop up... indicating you're reading is in volts. I think I pointed that out in the rectifier test video.
     
    TwoManyXS1Bs likes this.
  9. Anthony1993

    Anthony1993 XS650 Enthusiast

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    multimeter.jpg this is my multimeter the diode/ continuity funtions is the arrow with the plus sigh a couple clicks to the right. i dont get a v on the screen when i switch to that function. or any of the functions for that matter ?
     
    gggGary and Jim like this.
  10. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Yeah, it's a diagnostic tool, not a training tool. They kinda expect the user to understand how and what he's measuring. Not a problem, listen to Jim and 650skull...
     
    gggGary and Jim like this.
  11. Jim

    Jim People will come Ray, people will definately come. Top Contributor XS650.com Supporter

    Maybe not showing the function is a cost cutting measure.... :rolleyes:
     
    gggGary and TwoManyXS1Bs like this.
  12. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Justa something to consider when running high-capacity capacitors, like the Sparx.

    Fully charged to +12v, a 15,000mfd Sparx capacitor will light one of your tiny 3w instrument bulbs for just under 1 second.

    Assemble 8 AAA batteries into a little 12v gang, and they will illuminate that tiny 3w instrument bulb for anywhere from 3 to 5 hours.

    That little AAA battery pack has 10,000 to 18,000 times the storage capacity of the Sparx.

    Multiply that by 15 to compare to a regular motorcycle battery...
     
    Rasputin, Jim and gggGary like this.
  13. gggGary

    gggGary Stop that! Top Contributor XS650.com Supporter

    My 2HP VFD runs it's cooling fan for about 10 seconds after I unplug it.
    Still makes me do a double take...
     
    Jim likes this.
  14. Jim

    Jim People will come Ray, people will definately come. Top Contributor XS650.com Supporter

    Ever have a cap. from an old audio power amp tag ya? :yikes:
     
    gggGary likes this.
  15. gggGary

    gggGary Stop that! Top Contributor XS650.com Supporter

    Was warned at a very young age about sticking my fingers in the back of TV's.....
     
    GLJ and Jim like this.
  16. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Oh, yeah, flyback caps hold thousands of volts.

    Yeowch!
     
    Jim and gggGary like this.
  17. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Just outloud thinkin' here.
    Typical lead/acid batteries have an intrinsic internal resistance of a fraction to almost 3 ohms. Signal filters and power dampers usually use a capacitor and resistor in series, known as an RC (Resistor Cap) filter.

    I don't know what, if any, internal resistance exists in the Sparx capacitor. But, suppose you were to add an Ohmite power resistor, of say 1 or 2 ohms, in series with the Sparx. A capacitor by itself acts like a voltage spring. The resistor would dampen some of that springyness. Maybe the budget regulators would appreciate that...

    Edit: I don't have a dog in this hunt. Just throwin' chum in the water...
     
    gggGary and Jim like this.
  18. Anthony1993

    Anthony1993 XS650 Enthusiast

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    thanks for the tips guys! so do we have a consenses that my regulator is fried?
     
    Jim likes this.
  19. Jim

    Jim People will come Ray, people will definately come. Top Contributor XS650.com Supporter

    Well, the rectifier certainly is... assuming you tested it correctly, you've lost half the diodes. I'm late to this party... don't know if you have a combined reg/rec?
     
    gggGary and TwoManyXS1Bs like this.
  20. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Your 4th test certainly shows a failure:

    red probe to black wire black probe to yellows ( on diode/ continuity)
    1/OL
    2/OL
    3/OL

    It appears that the red wire is indeed connected to the internals.

    The black wire may have a break or disconnect somewhere. It's rather untypical to lose all 3 diodes at once. Just something to check...
     
    gggGary and Jim like this.

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