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ABSOLUTE NECESSITY FOR ALL GT250R OWNERS (probably works with other hyo models as well)

Discussion in 'Hyosung 250cc' started by cantafforda600, Aug 26, 2015.

  1. cantafforda600

    cantafforda600 can actually afford a 600 Premium Member

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    alright i don't know how many of you have heard of this, but there's a very simple CDI mod you can do to your gt250r which basically unrestricts the cdi

    all you have to do is take off the seats, take the bolt off the cdi to access the wires, then cut the BLUE and GREEN wire going into the BROWN plug on the cdi.

    i've just done it this morning and straight away could notice the throttle was much, much more responsive. the power gain isn't much when you're riding around but it's definitely worth doing and only takes a few minutes.

    as far as i know this only works on non-EFI GT250R models from 2005 to 2008.

    do not attempt this on a 2009-2015 model as it's hardwired to the cdi and you'll end up cutting the wire for something important.
    the wiring to the CDI is different on the 2004 model. i don't know which wire you'd have to cut, but it's likely doable.
     
    cantafforda600, Aug 26, 2015
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  2. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Yeah I have read that before.
     
    Damus, Aug 26, 2015
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  3. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Linkin, Aug 26, 2015
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  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    No ... it might drop a stich :oops:
     
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    GreyImport, Aug 26, 2015
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  5. cantafforda600

    cantafforda600 can actually afford a 600 Premium Member

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    definitely helped a bit on mine, i'd say it's worth a try. worst case scenario you just solder it back together and it's all good
     
    cantafforda600, Aug 26, 2015
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  6. Amara

    Amara Active Member

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    Or you could just unplug the brown plug from the cdi and get the same result. This way the mod is reversible for if you want to sell the bike
     
    Amara, May 9, 2019
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