Flatslide Carb on 2019 TW, Float bounce?
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Thread: Flatslide Carb on 2019 TW, Float bounce?

  1. #1
    Junior Member ThePhotoFred's Avatar
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    Flatslide Carb on 2019 TW, Float bounce?

    I'm a whiz on the old Mikuni carbs, but this flatslide is a bit different. I have 2 2019 TW 200's with less than 300 miles on them. Bikes run good at all elevations from 4500 feet to around 11,000 feet as long as they are on some what level and smooth roads and trails. Once the bikes get on steep grades that are covered in rock or wash board, they lose power and won't hardly run. Hit it and git it is the only way they will run. I pulled the plugs and confirmed they are running way rich and flooding out. Could float bounce cause this or is jetting the issue? Both bikes are doing the same thing.
    Thanks in advance.
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  2. #2
    Senior Member jbfla's Avatar
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    Not a flat side carb on on 2019 TWs....Teikei CV carb.

    Most likely a jetting problem. Several threads on high elevation jetting.

    https://www.tw200forum.com/forum/tec...e-jetting.html

    jb
    Last edited by jbfla; 07-18-2019 at 06:39 PM.
    2018 Triumph Street Twin..............2016 CB500F
    2014 XT250 ..................................2008 H-D Softail Deluxe
    2008 SV 650..................................2007 DR 650..

  3. #3
    Ken
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    Senior Member Ken's Avatar
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    Welcome. I have an old 1993 so I can't help you on the carbs, also I am at sea level.
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    1993 TW200 just over 46,000 miles

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  5. #4
    Member kangaroo's Avatar
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    That’s why flatslides make great racing carbs. Constantly dumping as much fuel as possible. Day to day, youre always running rich.
    2006 Tw200

  6. #5
    Junior Member ThePhotoFred's Avatar
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    Thank you.

  7. #6
    Junior Member ThePhotoFred's Avatar
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    My owners manual says its a Mikuni 28mm, but you are correct as I just found out. I'll have to research this particular carb as I'm not familiar with it. Mikunis and Amals are more what I am used too.

  8. #7
    Member kangaroo's Avatar
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    I have keihins on my R1 with a Ramair setup. It had a rep for being a complete pain to setup once upon a time.
    2006 Tw200

  9. #8
    Senior Member jbfla's Avatar
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    Quote Originally Posted by ThePhotoFred View Post
    ...... I'll have to research this particular carb as I'm not familiar with it..........

    https://www.tw200forum.com/forum/tec...ification.html

    jb
    Purple and Xracer like this.
    2018 Triumph Street Twin..............2016 CB500F
    2014 XT250 ..................................2008 H-D Softail Deluxe
    2008 SV 650..................................2007 DR 650..

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