What happened!

Discussion in 'Motorized Bicycle General Discussion' started by MarcPhotoMan, Jul 6, 2009.

  1. MarcPhotoMan

    MarcPhotoMan New Member

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    On my way to work today,
    Everything was running fine was about 2 miles from my destination. Suddenly my motor dies without any warning.

    On the weekend I was working on water proofing my bike. I had redone my wiring to make it warter proof so I think connection came loose I reconnected everything tonight, but I did not have time to test it.
    :-||
     
  2. deacon

    deacon minor bike philosopher

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    if the wiring isnt the problem check to see if your fuel filter in the tank is plugged. It happened to be twice
     
  3. Finfan

    Finfan New Member

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    To die that suddenly it does sound like the wiring. Especially since that is what you touched last. Usually a fuel filter will have it fussing and sputtering for a bit before it dies. If it isn't the wiring then your CDI might be suspect. If you can check to see if you have a spark.
     
  4. misteright1_99

    misteright1_99 New Member

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    Possibly the spark plug wire came loose from the CDI or the Plug Cap.......
     
  5. Junster

    Junster New Member

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    Not trying to be a smarta$$ but did you run out of gas?
     
  6. MarcPhotoMan

    MarcPhotoMan New Member

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    Ok gas is fine( gas (flow from the tank is the same as before), clutch seems tight, all wires are fine, I know my mix is good (Plug is brown) must be magnito or the coil< next i will have to test for sparkzpt
     
  7. MarcPhotoMan

    MarcPhotoMan New Member

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    one las thing what is the best way to test for spark?????.duh.
     
  8. Finfan

    Finfan New Member

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    Remove the spark plug and reconnect it to the wire.

    Get your rear wheel off the ground somehow.

    Hold the side of the plug against the engine block and turn the pedals by hand (be sure your other hand is not too close to the spark plug gap).

    zpt
     
  9. MarcPhotoMan

    MarcPhotoMan New Member

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    I think I found my real problem!
     

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  10. Creative Engineering

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    Highly unlikely...see my post in your follow-up thread.

    Jim
     
  11. MarcPhotoMan

    MarcPhotoMan New Member

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    I tested for spark I did not see any so I think maybe my cdi is finished, there was gas on the plug so i know t6he engine is getting gas. I should be able to see the spark??
     
  12. Finfan

    Finfan New Member

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    The problems can be that the plug wire isn't contacting the CDI properly, that the CDI is bad, that you missed a problem in your wiring ( I know you checked it), the kill switch is shorted, or the magneto went south. FR31 posted some ohmmeter readings he got off a good system somewhere if you can find that thread you might be able to narrow down your possibilities. If you can afford it swapping parts is the quick and dirty way to check it out. You should probably keep spares around anyway!
     
  13. MarcPhotoMan

    MarcPhotoMan New Member

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    i changed my high tension wire, resoldered any connections to be sure and disconnected my kill switch before testing for spark, I ordered a new CDI with a few other parts last night from ThatDax, I am fortunate enough to have over 1500 miles on this bike so far..shft.


    Thanks for all your help.
     
  14. MarcPhotoMan

    MarcPhotoMan New Member

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    OK I finally got my bike running again today it would not idle (Stalled as soon as ther clutch is disengaged) and was running hot.

    It was the cdi .

    I have Not resealed the mag cover or clutch cover yet could this cause an air leak.
    It did back fire once when I was trying to start it (but not this time), and it was not a loud backfire

    When I tested it the compression seemed good.

    However I am happy it is at least running again
     
    #14 MarcPhotoMan, Jul 28, 2009
    Last edited: Jul 28, 2009
  15. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    That was one graphic and rough description!
     
  16. GeneFiorot

    GeneFiorot New Member

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    yea what a picture comes to mind. Yikes Jim!
     
  17. Sydneysider

    Sydneysider New Member

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    yep I agree dont seal the covers, it wont be any use. With a screwdriver to push the seal evenly back in its place carefully not to damage the crankshaft gear and mag rotor.. also there may be an air leak at the intake which causes backfires at cold start.
     
  18. Sydneysider

    Sydneysider New Member

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    sheesh thats what I thought too :eek:rotfl
     
  19. HoughMade

    HoughMade New Member

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    Then you'll fit right in. That wasn't funny, just incredibly uncomfortable...just like much Comedy Central programming.
     
  20. MarcPhotoMan

    MarcPhotoMan New Member

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    I will redo my carb seals first
    it's a shame the bike was running so well before it konked out on me.

    Oh yeah where is the crank seal?
     

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