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Thread: converting bike to run off vapors

  1. #1
    Join Date
    Jul 2021
    Mount Pleasant, PA

    Default converting bike to run off vapors

    found this video on youtube awhile back

    he runs an engine off nothing but gas fumes.
    doing some cursory googling, it seems that all IC engine ran this way before the carb was invented.
    furthermore, running an engine this way would practically eliminate the need for carbs at all.

    anyone ever done something like this with their bike?
    1985 Suzuki GS450L

  2. #2
    Join Date
    Jul 2015


    ICEs still run this way. Carbs are/were just an optimized version of this, and fuel injection is even more optimized. The basic principle stays the same: fuel and air is mixed and ignited at some point.

    Trying this just to get rid of your carbs would be a mighty stupid thing to do, but it could be a funny thing to show off at a MC meet. But at your average meet, how many would even spot a missing carb?
    #1: 1979 GS 550 EC "Red" Very first Bike / Overhaul thread        New here? ☛ Read the Top 10 Newbie mistakes thread
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  3. #3
    cowboyup3371's Avatar
    cowboyup3371 is offline Forum LongTimer Past Site Supporter
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    Join Date
    Apr 2010
    In Ohio Now


    What would you use instead?

    Cowboy Up or Quit. - Run Free Lou and Rest in Peace

    1981 GS550T - My First
    1981 GS550L - My Eldest Daughter's
    2007 GSF1250SA Bandit - My touring bike

    Sit tall in the saddle Hold your head up high
    Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
    and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

  4. #4
    Join Date
    Mar 2018
    Branson, MO


    Love that channel, he can torture the same lawn mower engine 100 different ways and they still keep running!

    As to what I just saw, the idea is to create a vapor from a liquid, there's more than one way to skin a cat.
    1983 Naked Goldwing Interstate GL1100 (Current bike)
    1982 GS450txz (former bike)
    LONG list of previous bikes not listed here.

    Not ALL conspiracy theories are false. If it's on the radio, TV AND the internet (with pictures) then it's true. If it shows up in print, it always will be.

  5. #5
    Join Date
    Mar 2016
    Toronto Ontario


    Carb theory and application is as old or older than ice.
    1983 GS 550 LD
    2009 BMW K1300s

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