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Very weak yellow spark in front cylinder.
Back cylinder is perfect.
Has original ignition.

Bike is orignial. Tested with tester and was very weak/dim on tester.
Has 3 wires.

Sorry for the confusion. I am sending this for my husband. We are new at this. It is the front cylinder that will not spark. Real dim spark.

Front cylinder not sparking. Replaced plugs wires coil

Changed plugs, wires, coil

Firing on front cylinder only
Changed sparks, wires and coil