Need some help wiring
 

My son I putting a new gy6 engine in a yerf dog gocart. The engine that was in it was taken apart. We have everything in but having trouble with some wiring not knowing we’re they go. We have look at some wiring diagrams online. Could some one take a picture of there coil? We know the two thick wires go to starter and battery. Not sure of the two small wires where do they go to? Thanks