**!! NEW MAG, NEW CDI, NEW SPARK PLUG, BUT NO SPARK !!**

Discussion in 'Electrical' started by Caleb Allen, Dec 2, 2016.

  1. Caleb Allen

    Caleb Allen New Member

    I have replaced the whole ignition (apart from the magnet that spins)
    - i have tried disconnecting the kill switch
    - i don't have a working multimeter
    - i have tested the spark plug by resting it on the cylinder head

    !!!COULD SOMEONE PLEASE HELP ME , I HAVE SPEND SO MUCH TIME TRYING TO FIX THIS!!!

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  2. BikeMan2

    BikeMan2 Member

    Well without a DVM (Digital Volt Meter) it is hard to understand whats going on but I will say that something looks like its been rubbing the Mag and the Magnet. Have you got the right air gap on the Magnet and Mag? Check side to side play on the Crank I bet thats a problem
     
  3. crassius

    crassius Well-Known Member

    while I have replaced a bad CDI with a new one that was also bad, this is rare these days

    you could have a bad ground or a wire that was pinched somewhere and looks good but makes no connection

    get a meter - cheap to buy or borrow from friend or auto parts store
     
  4. jaguar

    jaguar Well-Known Member

  5. MotorbikeMike

    MotorbikeMike Member

    Hi Caleb, it doesn't happen very often, but I had a run of engines several years ago, where the magnet had lost its power. One side should be very strong (North) the other noticeably lower power (South). the magnet will only be in time if it goes back the way it is on there now. It will spark if it is put on backwards, but will not run, because the timing is wrong. We used to test them by using the flat of about a 1/4 inch wide screwdriver, flat side to the magnet, and pull it off. IF both sides are similar in power, bAD magnet. if it is not a hard pull on the North BAD magnet. I still have some new magnets in stock, just for this reason.
    BTW ALWAYS test with kill wire disconnected at the mag coil, to keep the kill switch completely out of the circuit.
    I hope this helps,
    Mike
     
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