Fuel Tanks - California vs 49 State models
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Thread: Fuel Tanks - California vs 49 State models

  1. #1
    Super Moderator JerseyJeeper's Avatar
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    Fuel Tanks - California vs 49 State models

    Can someone who has a California model xt225 tank with the rollover valve and the canister please explain the function of those components? Is the fuel cap different from 49 state models, does it vent, is the 49 state cap the same, will it fit?? Can you plug off that bung where the rollover valve is?


    Thanks!


    I got this and want to use it on dubby..

    IMG_5858.PNGI

    IMG_5860.PNG
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    Super Moderator JerseyJeeper's Avatar
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    Ok, I figured out how it works. I'm just going to put a filter on the hose to the tip over valve.
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    Senior Member immgunn's Avatar
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    The canister captures fuel vapors (volatile organic compounds (VOC)). VOCs react with NOx (burnt air mostly from internal combustion engines) to form photochemical smog. Fuel systems with fuel evaporative systems use fuel caps that allow fresh air into the fuel tank as the fuel level drops from engine operation, but prevents fuel vapors from escaping as fuel evaporates and builds pressure in the fuel tank (i.e., when the M/C is parked in the sun on a warm day). The fuel vapor is forced to flow from the tank through a vapor line to the canister which if filled with charcoal. The charcoal adsorbs the fuel and holds it until the next time the M/C is driven (rode?). While being operated, the fuel vapors are purged from the canister into the engine to contribute to the power output of the engine. After the canister is purged, the process repeats itself. I'm not sure if roll-over valves are unique to fuel evap systems, but they are what the say they are.
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    Super Moderator JerseyJeeper's Avatar
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    Thanks!
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    Super Moderator JerseyJeeper's Avatar
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    I have a 49 state bike, no canister on it and a new one is big $$$$ so filter it is. I'll keep and eye for a canister.
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    Senior Member TW-Brian's Avatar
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    That's a nice looking tank!


  8. #7
    Super Moderator JerseyJeeper's Avatar
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    Thanks, it's on the way to me now.

    There's a real nice Fuel Tank on eBay right now $100.00 or best offer. Looks like 2005! Someone should jump on it.
    Last edited by JerseyJeeper; 03-10-2017 at 04:45 AM.
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  9. #8
    Senior Member TW-Brian's Avatar
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    Quote Originally Posted by JerseyJeeper View Post
    I have a 49 state bike, no canister on it and a new one is big $$$$ so filter it is. I'll keep and eye for a canister.
    I've got a couple of canisters if you want one, but I am not sure why you would. Your California tank will work fine without it and you would have to find someplace to mount it since your 49 state frame does not have the mounts for it.

  10. #9
    Senior Member Fred's Avatar
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    No need for the evaporative canistermon a 49 state bike with a California tank.
    Gas caps should be interchangeable.
    My California caps seem to vent since they weep fuel if bike is tipped over.
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  11. #10
    Senior Member GaryL's Avatar
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    Just dead plug the extra outlet under the Cal. tank and mount it up. It serves no purpose on 49 state bikes that do not have the canister or the additional port on the carb boot.

    GaryL
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