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Thread: Gn250 rat bike not firing

  1. #1
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    24th November 2014 - 19:59
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    Gn250 rat bike not firing

    Picked up the worlds most hated motorbike today, the famous Gn250.
    For free though. So theres that.

    Needs a few tweaks here and there.

    Fork seals blah blah blah.

    But it doesn't start with the button.

    And when the start buttons pushed it makes a whizzing/spinning sound which sounds like the starter motor?

    Pushed it down the road in 2nd and tried 3 times and it fired. Ran for about 2 secs but didn't want to be revved.

    Now I know the battery isn't charged, unknown on the condition though.

    Not too sure on where to start but have read it could be CDI, voltage rectifier or the dreaded keyway has sheared off something in somewhere.

    Keen to rip into it so will probably be in bits before people reply Hahah.

    Since it isn't a Vw golf I don't know whats wrong with it . Hahah.

    Any one had these symptoms?

    Cheers in advance.

  2. #2
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    25th April 2009 - 17:38
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    Ducatilover has approximately 173 of these bikes in bits somewhere and can no doubt help out with the specifics of your starter shittyness (might be the sprag clutch, unless it is a buzzing in which case battery or solenoid or wiring). But if it starts on a push start but doesn't keep going, I'd be looking at fueling...
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  3. #3
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    28th October 2012 - 13:59
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    perished powerband
    Political Correctness, the chief weapon of whiney arse bastards

  4. #4
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    6th May 2012 - 10:41
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    strip and clean the cunt, good battery, check da erfs, then go visit ducs indian mate

  5. #5
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    24th November 2014 - 19:59
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    Sweet as, will start hunting for issues tonight. Does have a slight petrol leak but now thinking about it it may not have any fuel in it HA.

    But for a box of double browns as payment i cant expect an absolute minter.

  6. #6
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    1st October 2013 - 15:29
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    Quote Originally Posted by Ewlala View Post
    But for a box of double browns as payment i cant expect an absolute minter.
    They gave you double browns to take it away? That's a bit rough.

  7. #7
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    24th November 2014 - 19:59
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    Hahah nah i payed them with the beautiful brew. He just wanted it gone.

    Well, took the side cover off today.

    I must say, K C U F

    Yes that is a bolt head off an m6 i believe.
    Among 3 solid steel bits





    Purple lines indicate damage FFS
    Blue is where the bolt head and bits have come from. Some scary looking damage behind there.




    Blue lines in this one showing the copper wire damaged from the steel bits stuck to the magnet have caused.



    Guessing thats a big problem. One dollar in the swear jar for me.

    Ps i don't know the rules on posting images. But i did make them smaller for dial up users.

  8. #8
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    24th November 2014 - 19:59
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    Bolts seem to have come loose or snapped?
    Damage isn't too bad.
    Nothing i can't fix or replace i think.

  9. #9
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    25th April 2009 - 17:38
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    Even with a fucked stator like that I would expect it to fire with a good battery in there.

    Still pretty fucking though, I guess I'm saying don't spend more than a can or two on fixing that mess unless you're sure it'll fire afterwards...
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  10. #10
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    1st September 2007 - 21:01
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    Quote Originally Posted by Ewlala View Post
    But it doesn't start with the button.

    And when the start buttons pushed it makes a whizzing/spinning sound which sounds like the starter motor?

    Pushed it down the road in 2nd and tried 3 times and it fired. Ran for about 2 secs but didn't want to be revved.

    Now I know the battery isn't charged, unknown on the condition though.
    Start by jump starting it from a good battery ...

    Bump starting with a dud battery wont work well ... especially if the charging system is buggered ... (it wont help)
    When life throws you a curve ... Lean into it ...

  11. #11
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    24th November 2014 - 19:59
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    Before stripping all of that i got it fired but wouldn't stay running. Did it a few times but with the same outcome. Earths and power leads are mint.
    Not wanting to spend more than $700 to get it running cause they aren't worth that much hahah

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