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Help Neutral start issue. GT250R

Discussion in 'Hyosung 250cc' started by Rob1976, Oct 26, 2017.

  1. Rob1976

    Rob1976 Active Member

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    Having a little trouble getting my head around this issue atm. When I turn the key to on and hit the starter with the bike in neutral it will start with the kickstand down, as it should. My issue is when I engage a gear then return to neutral as soon as i drop the kickstand the engine switches off and I can't restart it unless the kickstand is up and clutch pulled in. I am getting the neutral light on the display and the bike free wheels so I know its in neutral. Any ideas?
    Thanks Rob
     
  2. Murdo

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

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    Your sidestand switch is sticky. Give it some love with WD-40 or similar. It that doesn't fix it you may need a new switch.
     
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  3. sharky

    sharky Well-Known Member Premium Member

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    Or the sidestands missing a screw
     
  4. Rob1976

    Rob1976 Active Member

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    Thanks I'll try that
     
  5. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    Hmm, sounds more like the neutral switch is the issue, the kick stand switch seems to work. But it is an earthing switch, so if the light comes on, it should work. The wire could be damaged from the ECU to the neutral wire. Then again, if it is consistent, every start up is the same, then it could be a weird start up procedure or ECU fault.
     
  6. Rob1976

    Rob1976 Active Member

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    I never thought of ecu. Would my bike have one seeing as it's a carby model?
     
  7. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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  8. Rob1976

    Rob1976 Active Member

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    Thanks
     
  9. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    The cdi unit is more than just an igniter, I manages the kill switch for the stand, signals for some dash inputs (mostly tacho) and whatever additional functions a manufacturer puts in. A faulty ECU seems unlikely, so if it is consistent, it might be a programming built in.
     
  10. Rob1976

    Rob1976 Active Member

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    Gee I sure hope not. That means every time I lower the side stand the engine is going to stop even if im only hopping off for a couple of seconds.
     
  11. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    ss.png
     
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  12. Rob1976

    Rob1976 Active Member

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    Yeah I have seen that. Thats where my dilemma is. I have to turn the key off to get the bike to behave like it's ment to
     
  13. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    If it is consistent, I'd say ECU fault (there shouldn't be a mechanical relay to play up), but if it's intermittent then wire from ECU through. The kickstand switch is fine, it's behaving normal, it is the neutral switch that's the problem.
     
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  14. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Does your neutral light work when you first start it with the stand down ?
    And does it come on again after clicking it into first and then back to neutral ?

    I think the Hyosung's have a CDI ignition but depend's on which model i guess ?


    Not sure what year this wiring diagram is for, but it may help ?

    250wiring-1.jpg
     
    Last edited: Oct 28, 2017
  15. Rob1976

    Rob1976 Active Member

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    Yes to both questions, and thank you for the electrical diagram
     
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  16. Rob1976

    Rob1976 Active Member

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    I'm putting this up just in case someone else has a similar issue one day. All I've done is highlighted the wiring for the starter system. Looking at the issue im having it's very likely it's the CDI.
     

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  17. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    I think it still sound's like the kick stand switch isn't working properly

    Can you unplug it from the loom, and try a jumper wire across the terminal's on the main loom where the stand switch plugs in?
     
  18. Rob1976

    Rob1976 Active Member

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    Just tried that. Unfortunately same issue, I'm about to pull the CDI off the bike and check the terminals for corrosion. I also noticed the clock is loosing time but thats a seperate matter
     
  19. Linkin

    Linkin The Apprentice Premium Member Dirty Wheel Club Contributing Member

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    What condition is the battery in?
     
  20. Rob1976

    Rob1976 Active Member

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    The battery is from December 2013, its holding a charge well and starts the bike first pop but im going to replace it anyway.
     

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