66cc Bike Engine Caught On FIRE!!!

Discussion in 'Motorized Bicycle General Discussion' started by mxchris727, May 8, 2011.

  1. azbill

    azbill Active Member

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    some of these comments crack me up !!! laff
    I ride and leave my bike in the hot desert sun (sometimes 110+) and the gas has never gave a reason to worry,,,IMHO your leak is the main culprit
     
  2. camlifter

    camlifter Active Member

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    gas tanks almost never explode, just in hollywood, they will burn spouting a huge flame, for it to explode it would have to rupture dumping all the gas at once so it could mix with air.
     
  3. The_Aleman

    The_Aleman New Member

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    Autoignition temperature of gasoline is roughly 495F (246C). If you have a fuel leaking onto something that hot....
     
  4. mxchris727

    mxchris727 New Member

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    But wouldn't the heat from the sun cause the gas vapors to expand thus creating pressure in the tank? I'm not overly worried, Ill just put a white towel over it if I ever do leave it in the sun.
     
  5. wayne z

    wayne z New Member

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    The tank cap is vented. If pressure could build up, so could a vacuum when fuel leaves the tank,and the motor would starve for fuel.
     
  6. DuctTapedGoat

    DuctTapedGoat Active Member

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    The only thing that could cause that is riding your bike until the motor was at peak temps and the fuel line was bumped off of the filter or petcock and spilled directly on the head, jug and/or exhaust. Heats it, vapors are there, they ignite, melts the fuel line, spill out everywhere on fire.

    I don't buy the "I got my camera, the fire extinguisher didn't work" though. I don't see any fire extinguisher retardant anywhere on the bike.
     
  7. mxchris727

    mxchris727 New Member

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    I pulled my phone out then put it out with an extinguisher, the fire went out fine it's just that the burning oil took awhile to go out.
     
  8. adam valentine

    adam valentine New Member

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    you poor fellow lol you just told a bunch of skeptics you just saw a ufo prepare for their wrath lmbo :-||
     
  9. 2door

    2door Moderator
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    Ahhh, where is that fuel line that was supposed to have leaked? It burned up without a trace?
    Hmmmm. Me thinks sumpins fishy here.
    Tom
     
  10. mxchris727

    mxchris727 New Member

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    Look at the third pic, it's hanging down from the carburetor-
     
  11. mxchris727

    mxchris727 New Member

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    I did not do this on purpose, please stop trying to prove me wrong.
     
  12. DuctTapedGoat

    DuctTapedGoat Active Member

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    I don't see how your fuel line was able to break at the spot where it goes over the petcock. The wind is blowing away from that side of the tank, so it really wouldn't melt as quickly as going inside and looking out the window.

    I'm still a skeptic.
     
  13. Goat Herder

    Goat Herder Gutter Rider

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    Fire extinguishers put out fire immediately fast. They are designed to put out fire permanently.
     
  14. steampunk

    steampunk New Member

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    if you dont get this one...i know that dax is trying to get bottom ends in...spoke with him this morning


    and ouch man that sucks
     
  15. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Maybe someones excessivley thick nerd glasses were left too close to it and it started the fire?
     
  16. JdubMotorMan

    JdubMotorMan New Member

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    I noticed your clutch cover is off in one of the pics ... do you ride it like that with the gears exposed ?
     
  17. mxchris727

    mxchris727 New Member

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    Yes because I had gotten a little grease in the clutch awile back and it needs constant adjusting. So far, I have had no problems with my pants catching or rubbing. I also think the clutch stays a little cooler when the cover is off.
     
  18. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    ...and get full of crud, which will make it slip.
     
  19. wayne z

    wayne z New Member

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    Did that happen to you, or are you just speculating?
     
  20. DuctTapedGoat

    DuctTapedGoat Active Member

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    There's a reason there's a cover there - and it's not so it can be taken off to run cooler. The only reason it would get hot is if you're butterflying the clutch, treating it like you've got gears based on how hard you pull the lever.

    Speculating is the wrong word, as he doesn't claim it IS slipping. "Will make it slip" is future tense, and that's more like prophesying.
     

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