No spark?

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dennis
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Posts: 181
Joined: Mon Jan 16, 2012 8:17 pm
Main scooter: 1 gp 1 special
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Just been been trying to get mates scooter going but can't get a spark,was running,tried new cdi (2)
new lead, new cap ,new plug,still no spark but when i swap the red and white round and dissconect the short earth lead on the cdi it starts,when the short lead is earthed it cuts it out, any ideas anyone.
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coaster
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Posts: 3125
Joined: Wed Jan 07, 2009 12:35 pm
Location: London and Norfolk
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What readings do you get between the various wires and earth? could be that the wires have been soldered on the wrong terminals. Also, have you tried it with the green wire to the cutout disconnected?
dennis
registered user
Posts: 181
Joined: Mon Jan 16, 2012 8:17 pm
Main scooter: 1 gp 1 special
Contact:

red to earth=100
green to earth=460
no wires have been touched since it stopped running, dissconected loom green,strange thing is it starts with red and white swapped and the short earth dissconnected.With the wires connected the right way and the green(stator) held near the engine case i get a spark but when put the green back on the cdi no spark at plug.
firekdp
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Posts: 706
Joined: Wed Jan 07, 2009 12:02 pm
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If it works when swapping the red & white and removing the earth, I would say, the pick up is faulty.
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