no spark

[darren]

picked up a kids atv serial #L5kgue828771008229 replaced wiring harness and all components with new from amazon still has no spark i have 2 connectors blue, white and a green wire open i think its lights and a black and yellow with green stipe connector in the front harness not sure if its foot brake and a green brown and yellow with green stripe connector and a black and green connector not connected in the rear of harness engine rolls over when i squeeze the front break but no spark is the coil somehow grounding out