Hey everyone my son has a yfz450 with a wr250r in it. The other day after riding he left the key on. When he went to ride it again the battery was dead so he pop started it. Once he hit half throttle it would start to backfire. He parked it and I put a charger on the battery. Battery was shot, bought a new one. After installing the new battery there is now power to anything. I can jump the solenoid to get it to turn over but no spark. I’ve been tracing wires and have checked the coil. I’m at a loss. Any help is greatly appreciated. TIA!
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