Got the chimera intake, what do I do with the gas tank vent hose?
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Got the chimera intake, what do I do with the gas tank vent hose?

This is a discussion on Got the chimera intake, what do I do with the gas tank vent hose? within the Monkey Talk forums, part of the Honda Monkey 125 Forums category; So the original airbox used to have a connection for the gas tank vent hose but the chimera intake does not. What do I do ...

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Thread: Got the chimera intake, what do I do with the gas tank vent hose?

  1. #1
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    Got the chimera intake, what do I do with the gas tank vent hose?

    So the original airbox used to have a connection for the gas tank vent hose but the chimera intake does not. What do I do with the hose now? Shorten it and hide it somehow? Remove it?

    What have you guys done?

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    The mnthbx intake comes with a small filter to fit that line. It’s probably ok but I’d stick a filter on it to be safe.
    2019 Monkey non-abs.

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    Quote Originally Posted by Swampass View Post
    The mnthbx intake comes with a small filter to fit that line. It’s probably ok but I’d stick a filter on it to be safe.
    Hi thanks for the reply, I have the chimera intake and not the mnthbx intake. So you're saying that the mnthbx intake has a filter for the gas tank vent line? I thought it had a filter for the crankcase breather hose? The chimera intake has a connection for the crankcase breather hose but nothing for the gas tank vent line so not sure what's the best thing to do with it.

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    I gotchya. The tank vent tube was tucked back . The crank case vent had the filter. You should be fine just tucking it back. I read vent hose and thought crank case.
    2019 Monkey non-abs.

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    Quote Originally Posted by Swampass View Post
    I gotchya. The tank vent tube was tucked back . The crank case vent had the filter. You should be fine just tucking it back. I read vent hose and thought crank case.
    That's what I ended up doing. I tucked it near the air filter. You can't really see it unless you look under the gas tank and my thought is that the area that it is in now there is a vacuum sucking gases out of the gas tank, which is what the original air box did.

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    Buy one of these filters and mount it to one of the existing air box mounts: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

    It is same filter that comes with mnnthbx intake

    Got the chimera intake, what do I do with the gas tank vent hose?-image.jpg

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    Quote Originally Posted by GdubluG View Post
    Buy one of these filters and mount it to one of the existing air box mounts: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

    It is same filter that comes with mnnthbx intake

    Click image for larger version. 

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    Sounds good, I bought it and i'll give it a try.

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    Crank case vent, I zip tied mine to the side if the intake lined up with the filter. Gas tank vent, I used one of these in it's place when I deleted the EVAP canister:

    https://www.amazon.com/Breather-Univ...a-782118917494
    Last edited by shush319; 07-23-2019 at 03:53 PM.

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    This is what MNNTHBX did when removing the evap canister.

    Quote Originally Posted by MNNTHBX View Post
    Lenny, I removed the sensor and the bracket too. No warning lights, runs great, and took that much more weight off. Grab you a dirtbike gas cap check valve and toss on the tank.

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    Monkey gas tank is different than the Grom, there are two vent lines. One for gas vent and other connects the charcoal canister. The vent lines face downward. Those dirt bike gas vents close when upside down so not sure if it would allow enough air to vent. I still put one on the charcoal canister side
    Attached Thumbnails Attached Thumbnails Got the chimera intake, what do I do with the gas tank vent hose?-4d1e5e5f-cad1-428e-abf1-76a4b41d4106.jpeg  
    50-50 likes this.

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