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Hyosung GV 250 Aquilla

Discussion in 'Hyosung 250cc' started by marc, May 3, 2014.

  1. marc

    marc Member

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    just swapped off my 89 honda spada import for a 05 hyosung gv 250 seems to go well but seems to flood it self up while riding if you try and give it too much gas any ideas thinking it maybe a carby issue but i seen a cable tie on the carby some where so will check that out tommorow and see whats going on over all i am pretty happy with it
     
  2. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Score mate, I quite like the Hyosung's... how do you find the riding position on the cruiser ?
     
  3. marc

    marc Member

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    yeah mate very different riding position but once you get used to it i prefer legs out the front then tucked up feels like you have more control that way i did like the honda but a cruiser is what i wanted to get from the start so there was no way i could turn the offer down i think i got the better deal out of it but he got a extra 5 months rego and a new back tyre and new battery plus full service so he cant complain too much lol do you know anyone who is after a cdi box to suit honda spada i got one for sale 100 if you know anyone its been tested on my old bike and works perfect just dont need it
     
  4. marc

    marc Member

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    05 hyo.jpg
     
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  5. marc

    marc Member

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    thats my new beast in fairly good nick for a 05

    hyosung.jpg
     
    Last edited by a moderator: May 13, 2014
  6. marc

    marc Member

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    seems to be running rough when riding runs perfect on idol can rev it fine rides ok under 40 but over 40 it starts spluttering and seems to be choking its self it got so bad that the cut off switch turned it self off but if you switch the switch back on it runs fine again until you go over 40 could this be caused by having no air filter in it at all ?
     
  7. Th3_Huntsman

    Th3_Huntsman Senior Member Premium Member Contributing Member

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    I would hazard a guess that your carbs are dirty possibly from no air filter but more likely from dirty fuel.

    http://www.alternativecruisers.com/index.php?topic=1352.0 a thread on how to clean carbs specific to your model
    there are many carb cleaning discussions on here.
    cheers

    Huntsman
     
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  8. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    No air filter ? .... I think u answered your own question there.

    Apart from the obvious filtering of wat goes in the carb , having no filter can upset the intake and exhaust balance ...as can changing the mufflers.
     
  9. Phil

    Phil Senior Member Premium Member Contributing Member

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    Mr Grey is correct, your bike needs an air filter pronto. Air fuel ratio would be out of whack!
    Let us know when you've fitted it and are cruising down the highway.
     
  10. marc

    marc Member

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    will try air filter and yes by the looks of things the exhaust has been modifed has no baffle just straight dump pipes so would the exhaust be a cause of the problem aswell ?
     
  11. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Possibly ..... same principle with headers/exhaust ......its engineered to control the flow of exhaust not just a muffler to kill the noise .... theres back pressure involved yada yada yada

    Same thing when u see huge stock airboxes with funny bends and bits here and there ...makes the air flow enter at the correct rate into the carby.

    Fit the stock setup in and out and clean carbys and I bet Phils prediction of cruising may well be correct!
     
  12. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Agree with above.
    No air filter in Aus is just stupid, just wanting a worn out engine, plus it regulates the airflow to the carbs and smoothes out the pulsing.
    As Grey said, the exhaust is also a calculated length to control the return pulses to the valve and help with scavenging of the burnt exhaust gases. Factories spend millions of $$$$ to work out the best all round exhaust for power, economy and noise and it is fun to watch someone who has replaced the original with an after market or home made muffler on the dyno making less than the 'restrictive' factory one.
     
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  13. marc

    marc Member

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    will have to try find a standard exhaust for it then and also are the hyosung gv250 ment to be running premium petrol ? as the petrol in mine is a real light yellow i looked it up and it on the net and it looks like it could be premium
     
  14. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Premium wont hurt it.
    Does the bloke you got it from still have the exhaust he took off? They should be easy to find considering all the noisy crusiers there are about.
     
  15. marc

    marc Member

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    i have been on too the guy but he is not answering me back at the moment i found out that it doesnt have any air box on it at all wasnt very happy at all

    air cleaner.jpg
     
  16. marc

    marc Member

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    thats what i am ment to have but want to know if i will get away with running a pod filter on it instead of paying for a new unit i can buy the elbow piece that goes onto the air box and was wondering if i could run a pod onto that to get more air too it
     
  17. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    So long as you rejet to suit the extra air.
     
  18. marc

    marc Member

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    and what size pod filter i want one to be a decent length so i can get more air into it
     
  19. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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  20. marc

    marc Member

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    so i will need bigger or smaller je
    tried them today on there web site they dont have one
     

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