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Thread: Hyosung performance?

  1. #1
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    15th May 2009 - 19:29
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    Hyosung performance?

    guys im sorry if its been asked a million times before but can anyone help with some suggestions to improve the power output of a 2004 hyosung gt 250 comet ?

    its only a 250 and i dont want to rip up tarmac just have a better chance of passing stuff on the open road than i do right now !

    thanks in advance

  2. #2
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    4th May 2006 - 22:17
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    You will be lucky to get an extra 10% power. That is going to be less than 3hp! Save ya money for the upgrade. Shouldn't be too hard to pass cars i would have thought!

  3. #3
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    15th May 2009 - 19:29
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    i have just replaced my exhaust that was blown to bits and put a stock replacement back on and its running silent but seems to lack the top end i was getting i used to have about 130kph out of it but its down to nearer 110? any ideas beside taking my drill to it?

  4. #4
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    17th July 2005 - 22:28
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    Quote Originally Posted by jubilant View Post
    guys im sorry if its been asked a million times before but can anyone help with some suggestions to improve the power output of a 2004 hyosung gt 250 comet ?

    its only a 250 and i dont want to rip up tarmac just have a better chance of passing stuff on the open road than i do right now !

    thanks in advance
    Exhaust can, carb jets and a dyno tune. You won't get much more power from a hyo 250 sorry but it would sound neat.
    Quote Originally Posted by Paul in NZ View Post
    Ha...Thats true but life is full horrible choices sometimes Merv. Then sometimes just plain stuff happens... and then some more stuff happens.....




    Alloy, stainless and Ti polishing.
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  5. #5
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    15th May 2009 - 19:29
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    im thinking of giving grant at spectrum bikes on barrys point road some cash for that nice z750 hes got....well after i get my full ticket

  6. #6
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    15th May 2009 - 19:29
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    any ideas on a nice new can ?

  7. #7
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    Quote Originally Posted by jubilant View Post
    any ideas on a nice new can ?
    Anything hollow....
    Quote Originally Posted by Paul in NZ View Post
    Ha...Thats true but life is full horrible choices sometimes Merv. Then sometimes just plain stuff happens... and then some more stuff happens.....




    Alloy, stainless and Ti polishing.
    Bling your bike out!
    PM me

  8. #8
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    21st December 2005 - 23:41
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    Just leave it alone

    www.PhotoRecall.co.nz

  9. #9
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    Quote Originally Posted by kiwifruit View Post
    Just leave it alone
    If you mess about with it, it may be harder to sell when you want to upgrade.

    Work on your cornering technique and you'll find you will enjoy the low speeds more (like that nutter around Glenfield).

  10. #10
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    5th February 2008 - 13:07
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    They are not designed to cane hell out of them. You will fuck the gearbox and score its cylinders.

    The best thing to do, is stick a really noisy exhaust on it, and then at least it will have some grin factor - The hyos have an awesome vtwin crackle to them with a straight through pipe.

    But forget going fast on them - you will just destroy it and lose your resale value.

    Steve
    "I am a licenced motorcycle instructor, I agree with dangerousbastard, no point in repeating what he said."
    "read what Steve says. He's right."
    "What Steve said pretty much summed it up."
    "I did axactly as you said and it worked...!!"
    "Wow, Great advise there DB."
    WTB: Hyosung bikes or going or not.

  11. #11
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    25th July 2006 - 21:34
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    Quote Originally Posted by jubilant View Post
    guys im sorry if its been asked a million times before but can anyone help with some suggestions to improve the power output of a 2004 hyosung gt 250 comet ?

    its only a 250 and i dont want to rip up tarmac just have a better chance of passing stuff on the open road than i do right now !

    thanks in advance
    Get a real bike!
    no seriously... you will never make a 250 go faster then a 400 (not counting rider skill)

  12. #12
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    5th February 2008 - 13:07
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    What you CAN do, is upgrade the front and rear suspension, and put some sticky tyres on it, and learn to corner the fucker harrrrrrrd. LOTS can be done with that. Comets are superb fun to corner.

    Steve
    "I am a licenced motorcycle instructor, I agree with dangerousbastard, no point in repeating what he said."
    "read what Steve says. He's right."
    "What Steve said pretty much summed it up."
    "I did axactly as you said and it worked...!!"
    "Wow, Great advise there DB."
    WTB: Hyosung bikes or going or not.

  13. #13
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    18th December 2004 - 10:00
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    I'd suggest visiting www.alternativecruisers.com

    They have some info on upgrades for the Hyosung GV250, which has the same engine (different gearbox tho) as your comet.
    They have links and info on an upgrade kit which increases power from 27bhp (standard) to 35-36hp (from memory).
    Ok, not a lot, but as everyone has pointed out already, it is only a 250.

    Get to your full license and a larger bike - thats the best bang for your buck

  14. #14
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    15th May 2009 - 19:29
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    cheers guys, your all right it is only a 250 and i have about 6 months to go until the full....im going to make do with it being a slow old girl for the time being, now this nutter around glenfield whats he riding? as i do tend to head through that way once in a while !!! i love the way the hyo handles it feel dead steady right unitl you hit the point of ooopppssss!!! then i find that my arse is much better at holding on than my hands..

    an mentors near albany want to teach me how i should be riding?

  15. #15
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    22nd November 2007 - 20:55
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    Have you unplugged your emissions control wire it was put in so it could be sold in europe.
    Did it to mine and it made for a much sweeter ride.
    power was noticed more at the lower range.
    If you cant fix it with a hammer, Its an electrical problem.

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