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  1. #1 No spark 
    C-Moto Noob
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    im getting no spark off my xy125gy, ive changed the coil and plug lead the plug and plug cap,the cdi unit and the kick stand switch ,the only things i can think of that it can be now are the kill switch on the handle bar, the key ignition swith and the generator/stator and maybe the wiring loom ............can anyone help ??????
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  2. #2 Re: No spark 
    Honorary C-Moto Guru
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    Can't be sure what type of CDI unit you have but one of the connections goes to both the ignition switch and the kill switch. This connection is earthed by either to turn the engine off by earthing the CDI unit.

    The usual colour for the kill switch is White and black.

    There might be a short to earth in that wiring which means the ignition will be permanently disabled.

    The stator can be tested by identifying the wire that goes to the CDI unit from the magneto. This comes from one of the coils in the stator, a fatter one than the rest. This is the exciter coil that is used to provide 60 to 90 Volts AC to the CDI box. Place an AC voltmeter between that wire and ground, turn the engine over smartly and you should see at least 50-60 volts there at cranking speeds.

    The usual colour for the exciter coil output wire is Blue and white.
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  3. #3 Re: No spark 
    Administrator-tron CrazyCarl's Avatar
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    Who makes your bike? Does the bike turn over but not start? Or does the bike not even turn over?

    Also worth trying is shorting/connecting the clutch starter safety switch (if your bike has it). Those switches are notoriously cheap and get lots of weathering.

    CC
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  4. #4 Re: No spark 
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    its a shineray xy125gy 2007 model. the engine turns but no spark
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  5. #5 Re: No spark 
    Administrator-tron CrazyCarl's Avatar
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    Did you run some of the tests Forchetto mentioned?

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  6. #6 Re: No spark 
    C-Moto Noob
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    Quote Originally Posted by CrazyCarl View Post
    Did you run some of the tests Forchetto mentioned?

    CC
    not yet as its dark when i get in from work and it rains at weekends.......
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  7. #7 Re: No spark 
    C-Moto Noob
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    check the saftey switch on your kick stand as i had the same problem and was resolved by this
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  8. #8 Re: No spark 
    C-Moto Noob
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    ive put a new side stand switch on it,i think its the stator
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  9. #9 Re: No spark 
    C-Moto Not-so-Noob
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    also check the spark plug cap to wire connection.

    i had one that the cap and plug wire were not making contact, trimmed some off the plug wire, screwed on the hard plug cap, and fired right up...
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  10. #10 Re: No spark 
    C-Moto Noob
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    Hi stock,
    bit late in the day ,i have a lifan lf125gy3,and had the same problem,it ended up being the ignition pick up which is connected to the stator,it was going to earth.
    bought the new stator and away she went,
    before i had all electrics,lights,would spin on the starter but not fire,
    hope this helps
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