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Thread: What's the "On-Off" Honda gas cap do?

  1. #1
    Join Date
    Sep 2011
    Location
    Central Illinois cornfield
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    61

    What's the "On-Off" Honda gas cap do?

    Both ATCs that I have are equipped with a gas cap with a rotating lever that goes between "on" and "off" positions. What exactly does the lever do?
    It doesn't seem to do anything on either of my trikes.

  2. #2
    Join Date
    Dec 2009
    Location
    BFE
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    1,202
    It vents the gas tank when in the on position.
    "I'm Kind Of Like The Turtle Man Of 3Wheelers."

    1986 Honda 350X
    1985 Honda 250R
    1985 Honda 200X

  3. #3
    Join Date
    Oct 2007
    Location
    Minneapolis mn
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    4,067
    Off is for transporting, to keep the sloshing, and oozing to a minimum.... (I always leave mine in the "on" position)
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
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  4. #4
    Join Date
    Oct 2002
    Location
    Northeast
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    17,457
    If the cap doesn't vent (ON), the fuel won't get to the carb. I like vent hoses myself but this was the way Honda did it.....
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  5. #5
    Join Date
    Sep 2011
    Location
    Central Illinois cornfield
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    61
    Hmm. That's kind of a cool feature. I wondered if it was a venting thing, but I couldn't think of a reason for it. Now that it's been said though, it makes sense to be able to shut off the vent while transporting the trike. I've had fuel slosh all over out of the caps of trailered stuff before.

  6. #6
    Join Date
    Dec 2009
    Location
    illinois
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    1,765
    IMO , like Thorpe said.. for transporting to keep from sloshing out the caps but it could also be good for storage to keep out moisture I would think.

  7. #7
    gus's Avatar
    gus is offline Just Too Addicted Arm chair racerJust too addicted
    Join Date
    Jul 2011
    Location
    tucson arizona
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    453
    Ya moisture and gas tanks don't mix

  8. #8
    Join Date
    Jan 2010
    Location
    Beaver Falls, PA
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    2,666
    I never turn mine off and they never slosh... guess I need to ride more lol

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