There's a black w/white stripe wire coming out of the CDI. Unplug that and give it a try.
The kill switch and ignition switch on these bikes shuts the engine off by grounding out the CDI through that wire. If this makes it work you could have a defective kill switch or ignition switch or there could be a short in the wiring.
Also you must have both spark plugs connected and grounded to get a spark.
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